СПОСОБ СВАРКИ В ЗАЩИТНОМ ГАЗЕ С ГАЗОДИНАМИЧЕСКИМ УДАЛЕНИЕМ СЛОЯ ЗАГРЯЗНЕНИЙ ИЗ ЗОНЫ СВАРКИ

Изобретение относится к области сварки металлов, в частности к способам сварки в защитном газе. В зону сварки подают защитный газ, а на электрод - импульс тока. Одновременно в локальную зону контакта электрода с поверхностью детали направляют поток вспомогательного газа. Вспомогательный газ подают через наконечник горелки под давлением 5 МПа в виде ударных струй. Снижается трудоемкость процесса сварки за счет удаления с поверхности детали диэлектрического слоя загрязнений непосредственно в процессе сварки. 1 ил.

ГОРЕЛКА ДЛЯ ДУГОВОЙ СВАРКИ МЕТАЛЛИЧЕСКИМ ЭЛЕКТРОДОМ В ГАЗОВОЙ СРЕДЕ

Сварочная горелка 10 предназначена для дуговой сварки металлическим электродом в газовой среде. Наконечник 16 сварочной горелки выступает из корпуса 12 горелки. Съемная форсунка 22 окружает наконечник 16 сварочной горелки для направления при сварке газа вокруг наконечника 16 сварочной горелки и на обрабатываемый элемент. Передний конец форсунки 22 обращен к обрабатываемому элементу при сварке, а задний конец прикреплен к корпусу 12 горелки. Кольцо 24 закреплено на заднем конце форсунки 22 с возможностью вращения относительно нее. Кольцо 24 имеет винтовую резьбу, а корпус горелки – соответствующую винтовую резьбу 26 для крепления форсунки 22 к корпусу 12 горелки. Форсунка установлена с возможностью ее перемещения относительно корпуса при свинчивании кольца с корпуса горелки и обеспечения удаления сварочных брызг, накопленных в процессе сварки на промежуточной поверхности, образованной внутренней поверхностью форсунки и поверхностью деталей внутри форсунки, открытой к переднему концу форсунки ...

УСТРОЙСТВО ДЛЯ ДУГОВОЙ СВАРКИ В ЗАЩИТНОМ ГАЗЕ (ВАРИАНТЫ)

Изобретение относится к сварке и может найти применение при дуговой сварке плавящимся или неплавящимся электродом крупногабаритных решетчатых или форменных конструкций с большим количеством коротких швов. Устройство содержит источник питания сварочной дуги, сварочную горелку, индикатор горения дуги и соединенные между собой газоподводящими элементами баллон с защитным газом, измеритель расхода газа, электропневмоклапан с обмоткой, дросселирующий элемент и источник питания обмотки электроклапана. Дросселирующий элемент подсоединен параллельно электропневмоклапану. Его обмотка подключена к источнику его питания через индикатор горения дуги. По другому варианту дросселирующий элемент соединен параллельно с электропневмоклапаном. Индикатор горения дуги выполнен в виде первичной обмотки трансформатора, которая включена последовательно во вторичную цепь источника питания сварочной дуги. Источник питания обмотки электропневмоклапана выполнен в виде вторичной обмотки трансформатора. 2 с.п. ф-лы ...

СПОСОБ СВАРКИ ТИТАНА И ЕГО СПЛАВОВ

Изобретение может быть использовано при сварке в инертных газах угловых или тавровых соединений крупных металлоконструкций из титана или его сплавов, в частности трубных секций. Защиту обратной стороны сварного шва осуществляют путем подачи защитного газа через предварительно выполненные в одном из свариваемых элементов отверстия в канал, предварительно выполненный на внутренней поверхности того же элемента. Таким образом, обеспечена подача защитного газа по всему периметру свариваемого шва. Замена фланцев трубопровода может быть осуществлена без демонтажа всей конструкции. Сварные швы, выполненные с использованием данного способа, не имеют трещин. 1 ил.

СПОСОБ И СИСТЕМА ДЛЯ СВАРКИ ЖЕЛЕЗНОДОРОЖНЫХ РЕЛЬСОВ

Изобретение может быть использовано для соединения размещенных с зазором железнодорожных рельсов с помощью дуговой электросварки. Применительно к конкретному зазору создают массив данных, в который входит последовательность позиций идеализированного перемещения горелки при заполнении разделки вертикально разнесенными слоями, составленными несколькими позициями. Каждая из заданных позиций идентифицируется с помощью четырех координат со слоем, частью которого является указанная позиция, и со сварочными параметрами, которые должны выполняться при движении горелки к следующей позиции. Последовательно выполняются действия, связанные с выводом из массива данных, относящихся к отдельной позиции, и нанесением слоя с использованием программы управления роботом. Повторение производят до тех пор, пока все позиции из массива данных, связанные с отдельным слоем, не будут выполнены. Затем повторяют нанесение слоя или выполняют следующий слой. Низкоуровневый язык программы управления движением робота ...

СПОСОБ ДУГОВОЙ СВАРКИ АЛЮМИНИЕВЫХ СПЛАВОВ

Изобретение относится к способу дуговой сварки в защитных газах изделий из алюминиевого сплава и может быть использовано при изготовлении сварных конструкций из алюминиевых сплавов в авиационной промышленности, в машиностроении, судостроении, атомной энергетике и других отраслях. Свариваемое изделие помещают в климатическую камеру, в которой до начала и в течение всего процесса сварки поверхность изделия обдувают потоком подогретого воздуха со скоростью 0,02 до 0,5 метров в секунду, независимо от скорости истечения защитного газа в процессе сварки. При этом подаваемый воздух подогревают до температуры, превышающей температуру поверхности свариваемого изделия не менее чем на 2˚C. Изобретение позволяет уменьшить порообразование в сварных швах при дуговой сварке алюминия и алюминиевых сплавов посредством удаления с поверхности сорбированной влаги. 3 ил.

СПОСОБ АВТОМАТИЧЕСКОЙ СВАРКИ НЕПОВОРОТНЫХ КОЛЬЦЕВЫХ СТЫКОВ, РАСПОЛОЖЕННЫХ В ГОРИЗОНТАЛЬНОЙ ПЛОСКОСТИ

Изобретение относится к способу автоматической сварки неповоротных кольцевых стыков, расположенных в горизонтальной плоскости. Изобретение может быть использовано при сварке труб из жаростойкого материала типа ВНС-16. Осуществляют стыковку труб. Фиксируют прихваткой по кромкам стыка. Наносят на поверхность кромок свариваемых труб слой активирующего флюса АФ-71 в виде шихты, растворенной в этиловом спирте. Зажигают дугу с вольфрамовым электродом и перемещают дугу вдоль свариваемых кромок. В процессе подготовки соединения под сварку в стыке между трубами выполняют визирную канавку глубиной 1 мм с углом раскрытия кромок 45°. 1 з.п. ф-лы.

УСТРОЙСТВО ДЛЯ ЭЛЕКТРОДУГОВОЙ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ НА ВЕТРУ

Изобретение относится к устройствам для электродуговой сварки в среде защитных газов на открытых площадках и может быть использовано в отраслях промышленности, где имеется производственная необходимость выполнять сварку конструкций из различных материалов, в том числе и активных на ветру. Устройство содержит горелку с пакетом мелкоячеистых сеток (3) и конфузорным соплом (2), образующая которого выполнена по параболической двухасимптотной кривой, источник сварочного тока и автоматический регулятор скорости истечения защитного газа. В состав регулятора входят датчик (4) скорости ветра, два интегрирующих усилителя (5 и 6), запоминающее устройство (7), сумматор (13), два усилителя-корректора (10 и 11), датчик тока дуги (9), задатчик (12) величины вылета электрода, датчик (8) температуры окружающей среды, регулятор (14) скорости истечения защитного газа, задатчик (17) максимальной величины скорости истечения защитного газа, логическое отрицание НЕ (16) и логический элемент И (15). В зависимости ...

УСТРОЙСТВО ДЛЯ СВАРКИ НЕПОВОРОТНЫХ СТЫКОВ ТРУБ

Изобретение относится к сварочной технике, а именно к устройствам для сварки неповоротных стыков труб малого диаметра. Устройство содержит разъемные корпус, планшайбу (3) с наружным зубчатым венцом, несущую сварочную горелку (5) с электродом (7) и соплом для подачи защитного газа (6) и червячный привод (8). Разъемный корпус выполнен из двух частей - подвижной (2) и неподвижной (1), причем подвижная часть подпружинена с помощью пружины (12) и установлена с возможностью поворота вокруг оси (15) относительно неподвижной. Разъем корпуса выполнен совпадающим по плоскости с разъемом планшайбы, а червячный привод связан с зубчатым венцом (4) планшайбы с помощью промежуточного зубчатого колеса (10), установленного на оси в неподвижной части корпуса. На противоположной от сварочной горелки стороне планшайбы и на одной с ней оси установлен жиклер (11). Это позволит повысить качество сварного соединения за счет создания закрытой рабочей зоны сварки, создания избыточного давления защитного газа и направленного ...

КОНТРОЛЛЕР РАСХОДА ЗАЩИТНОГО ГАЗА ДЛЯ СВАРОЧНОГО АППАРАТА

Контроллер (100) расхода защитного газа для электродугового сварочного аппарата для установки в линии подачи газа между его источником и клапаном (800) газа электродугового сварочного аппарата. Контроллер (100) имеет впуск (200) и выпуск (600) защитного газа, управляемый газовый клапан (110), подсоединенный между впуском и выпуском газа и имеющий управляющий вход (170), и средство управления. Средство управления имеет первый вход (400) для приема сигнала о сварке и средство управления (300) параметром настройки расхода газа. Датчик (120) входного давления подсоединен к впуску газа и подает результат (150) измерения входного давления газа на второй вход средства управления. Датчик (140) выходного давления подсоединен к выпуску газа и подает результат (160) измерения выходного давления газа на третий вход средства управления. Средство преобразования выходного сигнала параметра настройки расхода преобразует выходной сигнал параметра настройки расхода из средства управления параметром настройки ...

РЕГУЛЯТОР ПОДАЧИ ЖИДКОСТЕЙ И ГАЗОВ

Изобретение относится к машиностроению и может быть использовано для регулирования подачи жидкостей и газов при сварке металлов в газозащитной среде, в медицине, в быту для обеспечения смешивания горячей и холодной воды и т.д. Техническим результатом является упрощение конструкции и увеличение срока эксплуатации. Регулятор подачи жидкостей и газов содержит полый корпус с выпускным штуцером в его центральной части, установленные на концах корпуса два стакана с резьбой на их внутренней поверхности, в донной части каждого из которых установлен впускной штуцер, а на боковых поверхностях каждого из стаканов размещены электромагнитные катушки, имеющие возможность подключения к источнику питания. В камерах, образованных внутренними поверхностями стаканов и торцами корпуса, расположены элементы регулирования хода клапана-сердечника, установленного в полости корпуса с возможностью осевого перемещения и выполненного с центральной цилиндрической частью и коническими торцами. На центральной части клапана-сердечника ...

УСТАНОВКА ДЛЯ СВАРКИ В ЗАЩИТНОЙ СРЕДЕ

Изобретение относится к области сварки, а именно к установкам для дуговой сварки и термической обработки изделий из легко окисляемых металлов в едином защитном газе. Установка содержит сварочную камеру, сварочную горелку и устройство для термической обработки. Устройство для термической обработки выполнено в виде печи или теплоизолированной оболочки, рабочий объем которой является объемом сварочной камеры. Теплоизолированная оболочка выполнена в виде камеры с двойными стенками, разделенными вакуумным промежутком. Это позволит расширить технологические возможности установки, повысить производительность и качество сварных соединений за счет осуществления процессов сварки и термической обработки, в том числе предварительной, в едином защитном газе, исключив необходимость в переносе легко окисляемых изделий с одной операции на другую. 1 з.п. ф-лы, 2 ил.

СПОСОБ МЕХАНИЗИРОВАННОЙ СВАРКИ ПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

Изобретение может быть использовано при изготовлении механизированной сваркой металлоконструкций ответственного назначения. С основной сварочной проволокой применяют дополнительную присадочную проволоку, содержащую оболочку, наполненную наноструктурированными порошками вольфрама, или молибдена, или оксида алюминия. Дополнительную присадочную проволоку подают в хвостовую часть сварочной ванны. Наноструктурированные порошки из расплавленной присадочной проволоки попадают без расплавления в поток перегретого жидкого металла, направленного из-под дуги в хвостовую часть, перемешиваются в нем и служат дополнительными центрами кристаллизации металла шва. Способ обеспечивает повышение механических свойств и коррозионной стойкости сварных соединений за счет управления структурой наплавленного металла. 9 ил.

Газовое сопло для сварочной горелки

Изобретение относится к машиностроению и может быть применено при дуговой сварке и наплавке металлических деталей в среде защитного газа. Газовое сопло сварочной горелки выполнено в форме конфузора, состоящего из криволинейного и двух прямолинейных участков на входе и выходе сопла с внутренней поверхностью в виде параболической кривой, у которой начало и конец асимптотически стремятся к прямой линии параллельно продольной оси сопла. При этом кромка сопла на выходе выполнена с углом скоса 10-45°. Длина прямолинейного участка на входе находится в интервале 0,1-1,2 входного диаметра сопла. Длина прямолинейного участка на выходе находится в интервале 0,2-1,5 выходного диаметра сопла. Кромка сопла на выходе имеет толщину в пределах 0,2-1 мм. Изобретение позволяет повысить эффективность газовой зашиты зоны сварки при дуговой сварке в среде защитного газа в условиях ветра путем увеличения скорости истечения и жесткости защитной газовой струи. 3 з.п. ф-лы, 1 ил., 1 табл., 1 пр.

СПОСОБ ДУГОВОЙ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

Способ может быть использован в различных отраслях промышленности при дуговой сварке в среде защитных газов плавящимся и неплавящимся электродом. Несколько газов или их смесей подают импульсами. В каждом последующем импульсе используют газ или смесь с потенциалами ионизации, отличными от потенциала ионизации газа или смеси предыдущего импульса. Синхронно с импульсами подачи газов осуществляют периодическое изменение дугового промежутка. При сварке малых толщин в период подачи защитного газа или смеси с повышенным потенциалом ионизации дуговой промежуток увеличивают. В период подачи защитного газа или смеси с пониженным потенциалом ионизации дуговой промежуток уменьшают. При сварке больших толщин в период импульса подачи защитного газа или смеси с повышенным потенциалом ионизации дуговой промежуток уменьшают. В период подачи защитного газа или смеси с пониженным потенциалом ионизации дуговой промежуток увеличивают. Изменение состава газовой среды в дуговом промежутке позволяет управлять ...

СПОСОБ СВАРКИ КОМБИНАЦИЕЙ СЖАТОЙ И СВОБОДНОЙ ДУГ

Изобретение может быть использовано для сварки металлов комбинацией сжатой и свободной дуг. Сжатая дуга прямого действия прямой полярности зажигается с помощью дежурной дуги между вольфрамовым электродом и соплом от высокочастотного возбудителя дуги. Затем дежурная дуга зажигается при случайном обрыве рабочей дуги. На торце сопла плазмотрона закрепляют тугоплавкую вставку из неплавящегося электрода. Между этой вставкой и изделием зажигают свободную дугу, питаемую от источника разнополярных импульсов тока частотой не менее 50 Гц. Отношение среднего за период тока импульсов прямой полярности в свободной дуге к полному среднему току этой дуги выбирают в пределах 0,5-0,9. Близкое расположение сжатой и свободной дуг обеспечивает эффект тандемной сварки, приводящий к повышению проплавляющей способности по сравнению с однодуговой сваркой. При сварке алюминиевых сплавов свободная дуга располагается впереди по отношению к направлению сварки и очищает поверхность от окисной пленки алюминия. При сварке ...

СПОСОБ ЛЕГИРОВАНИЯ СВАРНОГО ШВА ПРИ ДУГОВОЙ СВАРКЕ ПЛАВЛЕНИЕМ В СРЕДЕ УГЛЕКИСЛОГО ГАЗА

Изобретение относится к сварке, в частности к способу легирования сварного шва при дуговой сварке плавлением в среде углекислого газа, и может найти применение в сельхозмашиностроении для изготовления стрельчатых лап почвообрабатывающих орудий. Перед сваркой на свариваемые поверхности напекают электроконтактным методом слой порошка из легирующих компонентов. Сварку проводят электродной проволокой. Технический результат заключается в экономии легирующих ингредиентов в процессе дуговой сварки, повышении эффективности способа и расширении технологических возможностей за счет легирования шва различными химическими элементами. 1 табл.

УСТРОЙСТВО ДЛЯ ГАЗОВОЙ ЗАЩИТЫ СВАРОЧНОЙ ВАННЫ, СВАРОЧНОГО ШВА И ОКОЛОШОВНОЙ ЗОНЫ

Изобретение может быть использовано для газовой защиты сварочной ванны, сварного шва и околошовной зоны при сварке плавлением в среде защитных газов. Устройство содержит сопло для подачи защитного газа в зону сварки и закрепленную на нем приставку, имеющую ребра, выполненные со стороны, обращенной к поверхности свариваемой детали, и снабженную опорами для перемещения по ней. Высота опор выбрана из условия получения профилированного зазора между приставкой и защищаемой поверхностью. Упомянутые ребра приставки выполнены с образованием по меньшей мере двух прикрытых спереди боковых продольных каналов, профиль которых имеет форму, обеспечивающую вихреобразное закручивание защитного газа из сопла горелки. Приставка имеет открытый спереди вход, а в качестве сопла для подачи защитного газа использовано сопло сварочной горелки. 7 ил.

СОПЛО К СВАРОЧНОЙ ГОРЕЛКЕ

Сопло к сварочной горелке для двухструйной газовой защиты сварочной ванны, содержащее связанный с трактом подачи защитного газа полый цилиндрический корпус с выходной частью, отличающееся тем, что оно снабжено вставкой в виде ступенчатой втулки, большей ступенью установленной в выходном отверстии корпуса, а в стенке перехода от большей ступени к меньшей выполнены равномерно по окружности расположенные отверстия круглого профиля или в виде пазов, при этом наружная поверхность малой ступени втулки выполнена фасонной, а внутренняя поверхность центрального осевого отверстия - цилиндрической, или конической, сужающейся в сторону выхода или в сторону стенки перехода.

СПОСОБ ДУГОВОЙ СВАРКИ

Изобретение относится к области сварки и может быть использовано при дуговой сварке в различных отраслях машиностроения. Целью является упрощение способа, снижение затрат при дуговой сварке и повышение стабильности процесса. Осуществляют слежение за стыком с помощью копира, установленного с возможностью контакта с копирной поверхностью. Копир, изготовленный из теплопрочного материала, размещен в центре сварочной ванны. Электроду задают вокруг копира вращение по траектории, отстоящей от поверхности копира на расстоянии, равном 0,5 1,5 установочной длины дуги. При сварке тавровых соединений копирной поверхностью служит торец ребра, при сварке стыкового соединения с разделкой кромок зона вершины угла разделки, при сварке стыкового соединения на подкладке поверхность канавки, при сварке стыка "навесу" оплавленная поверхность торцов. Способ позволяет осуществлять слежение за свариваемым стыком путем размещения датчика (копира) непосредственно в сварочной ванне. 4 з.п. ф-лы, 4 ил.

СПОСОБ РЕГУЛИРОВАНИЯ ГЛУБИНЫ ПРОПЛАВЛЕНИЯ ПРИ ДУГОВОЙ СВАРКЕ

Изобретение относится к способам дуговой сварки и может быть использовано в различных отраслях машиностроения. Цель изобретения - повышение качества сварного соединения путем регулирования глубины проплавления изделия при сварке двумя последовательно расположенными электродами. При сварке второй электрод располагают по нормали к задней поверхности плавильного пространства сварочной ванны. Напряжение измеряют на промежутке второй электрод - изделие. Сигналом об изменении указанного напряжения управляют осевым перемещением первого электрода. Электрод устанавливают по нормали путем отгибания его конца. 1 ил., 1 табл.

УСТРОЙСТВО ДЛЯ ЗАЩИТЫ КРИВОЛИНЕЙНОГО ПРОСТРАНСТВЕННОГО СВАРНОГО ШВА

Изобретение относится к сварке изделий из высоколегированных, нержавеющих сталей и сплавов на основе титана и других активных металлов и используется в устройствах для защиты сварного шва инертным газом. Устройство содержит подвижно соединённые между собой звенья с системой подачи газа к месту сварки. Звенья установлены на гибкой оси и контактируют по поверхностям “шар-конус”. Система подачи газа выполнена в виде центрального канала, образованного осевыми отверстиями, выполненными в звеньях, и соединенного с входным штуцером посредством канала, выполненного в первом звене в виде отверстия, и с распределительными каналами, выполненными в звеньях в виде дроссельных отверстий. В результате обеспечивается плотное прижатие звеньев во время сварки к соединению вне зависимости от формы сварного шва, включая швы, имеющие пространственную кривизну. 5 з.п. ф-лы, 6 ил.

СВАРОЧНАЯ ГОРЕЛКА С ГАЗОДИНАМИЧЕСКИМ УДАЛЕНИЕМ СЛОЯ ЗАГРЯЗНЕНИЙ ИЗ ЗОНЫ СВАРКИ

Полезная модель относится к области сварки металлов, в частности, к способу сварки в защитном газе с газодинамическим удалением слоя загрязнений из зоны сварки, а именно к сварочному оборудованию. Известно, что газодинамическое удаление слоя загрязнений из зоны сварки происходит посредством его термического разрушения и подачей в локальную зону контакта сварочного электрода с поверхностью детали, под высоким давлением (≈5 МПа), потока вспомогательного газа, который посредством кинетической энергии газодинамического напора удаляет из зоны сварки продукты термически разрушенного слоя. Однако, существующие конструкции сварочных горелок для сварки в защитном газе не предусматривают подачу потока вспомогательного газа с необходимым давлением в локальную зону контакта сварочного электрода с поверхностью детали. Технической задачей является создание сварочной горелки обеспечивающей подачу потока вспомогательного газа с необходимым давлением в локальную зону контакта сварочного электрода с поверхностью ...

ЭЛЕКТРОДОДЕРЖАТЕЛЬ ДЛЯ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

Электрододержатель для сварки в среде защитных газов, содержащий неплавящийся электрод, элемент крепления электрода, изолятор, отличающийся тем, что, с целью упрощения регулирования расстояния от электрода до изделия, уменьшения габаритов электрододержателя и повышения надежности, элемент крепления выполнен в виде трубки, изолятор выполнен в виде наружного покрытия трубки, электрод выполнен изогнутым со стрелой прогиба больше внутреннего диаметра трубки и установлен в трубке с возможностью относительного осевого перемещения.

ПЛАЗМОТРОН

Полезная модель относится к машиностроению, более конкретно - к устройствам, генерирующим плазму для нагрева и обработки поверхностей различных изделий, для обработки непроводящих материалов, и может найти применение в машиностроении для закалки, отжига, поверхностной обработки, напыления и упрочнения изделий. Решаемая техническая задача предлагаемого плазмотрона -повышение скорости и равномерности при обработке вытянутых (длинномерных) изделий с неплоской (криволинейной) внешней или внутренней поверхностью, с обеспечением работы без защиты источника питания от высоковольтного напряжения постоянно работающего осциллятора и возможность работы как на постоянном, так и на переменном токе. Решаемая техническая задача в плазмотроне, содержащем корпус, два незамкнутых электрода с соответствующими токоподводящими концами, канал для подачи плазмообразующего газа, достигается тем, что каждый электрод выполнен в заданной криволинейной форме, причем электроды расположены параллельно друг другу. Каждый ...

УСТРОЙСТВО ДЛЯ ДВУХДУГОВОЙ АВТОМАТИЧЕСКОЙ СВАРКИ

НАСАДКА-УДЛИНИТЕЛЬ К ЭЛЕКТРОДУГОВОЙ ГОРЕЛКЕ

Насадка-удлинитель к электродуговой горелке, состоящая из медной трубки, изолированной по наружной поверхности обмоткой из асбестового шнура, плотно уложенного виток к витку и склеенного термостойким клеем, медного наконечника с 4-мя отверстиями, предназначенными для подачи газа, и сопла из термостойкой керамики.

Технологическа лини по производству защитной сварочной газовой смеси (варианты)

СОПЛО К СВАРОЧНОЙ ГОРЕЛКЕ

Сопло к сварочной горелке для двухструйной газовой защиты сварочной ванны, содержащее связанный с трактом подачи защитного газа полый цилиндрический корпус с выходной частью, отличающееся тем, что оно снабжено вставкой в виде ступенчатой втулки, большей ступенью установленной в выходном отверстии корпуса, а в стенке перехода от большей ступени к меньшей выполнены равномерно по окружности расположенные отверстия круглого профиля или в виде пазов, при этом внутренняя поверхность центрального осевого отверстия втулки выполнена цилиндрической, а наружная-конической, сужающейся в сторону выхода или в сторону стенки перехода.

УСТАНОВКА ДЛЯ СБОРКИ ЦИЛИНДРИЧЕСКИХ КОНСТРУКЦИЙ ИЗ ОБЕЧАЕК

Изобретение относится к области сварки, в частности к устройствам для стыковки кольцевых кромок (кольцевых швов) обечаек при сборке секций цилиндрических корпусов аппаратов и сосудов. По сравнению с аналогами, заявленная установка обеспечивает повышение производительности и расширение технологических возможностей. Установка содержит планшайбу с опорно-центрирующим механизмом, систему подачи защитного газа и сварочной автомат. Отличается простотой конструкции и регулировки при сварке обечаек разных диаметров. Используется автомат плазменной сварки с поддувом защитного газа-аргона с внутренней стороны свариваемых обечаек. Обеспечивается высокое качество получаемых швов. При установке дополнительной стойки со шлифовальной головкой имеется возможность обработки кромки перед сваркой. Кроме того, установка (при смене насадки с каналами для подачи защитного газа), позволяет вести сварку и продольных швов аппаратов.

СОЕДИНИТЕЛЬНАЯ ДЕТАЛЬ ДЛЯ ОБРАБАТЫВАЮЩЕЙ ГОЛОВКИ ДЛЯ ТЕРМООБРАБОТКИ МАТЕРИАЛОВ, В ЧАСТНОСТИ ДЛЯ ГОЛОВКИ ПЛАЗМЕННОЙ ГОРЕЛКИ, ЛАЗЕРНОЙ ГОЛОВКИ, ПЛАЗМЕННО-ЛАЗЕРНОЙ ГОЛОВКИ, ИЗНАШИВАЮЩАЯСЯ ДЕТАЛЬ И ДЕРЖАТЕЛЬ ИЗНАШИВАЮЩЕЙСЯ ДЕТАЛИ, А ТАКЖЕ СПОСОБ ИХ СБОРКИ

Изобретение относится к способу установки или вставления первой соединительной детали во вторую соединительную деталь обрабатывающей головки для термической обработки материала, соединительной детали для обрабатывающей головки для термической обработки материала (варианты) и устройству из первой соединительной детали и второй соединительной детали. На окружающей внешней поверхности (110) первой соединительной детали и/или на окружающей внутренней поверхности (240) второй соединительной детали осуществляют выполнение по меньшей мере одного проходящего по меньшей мере на части окружной поверхности паза (130, 230) шириной (В130, В230) и глубиной (Т130, Т230, Т112, Т120). Размещают в упомянутом пазу уплотнительное кольцо (132, 232) из корда с толщиной (Sa). В процессе установки или вставления первой соединительной детали (100) во вторую соединительную деталь (200) осуществляют контактирование упомянутого кольца (132, 232) с противоположной внутренней поверхностью (240, 242, 244) или противоположной ...

ГОРЕЛКА ДЛЯ СВАРКИ НЕПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ

... 1. Горелка для сварки неплавящимся электродом, содержащая водоохлаждаемый корпус, имеющий осевое отверстие, полый катод, в котором размещен вспомогательный электрод, имеющий возможность соединения посредством токоподводящего провода с источником питания, подсоединенный к корпусу шланг для подачи плазмообразующего газа в полый катод, отличающаяся тем, что горелка снабжена переходником и ступенчатой втулкой, установленной в корпусе, переходник размещен во втулке и зафиксирован гайкой, ввинченной в ступенчатую втулку, причем отверстие корпуса закрыто заглушкой, полый катод установлен на заглушке, в гайке и заглушке выполнены осевые отверстия, через которые в полый катод пропущен вспомогательный электрод, помещенный в изолятор, при этом вспомогательный электрод скреплен с переходником, с которым также скреплен тоководводящий провод. ! 2. Горелка для сварки неплавящимся электродом по п.1, отличающаяся тем, что в шланге для подачи плазмообразующего газа установлена втулка, через которую пропущен ...

Устройство для герметизации капсул алюминиевых

Устройство предназначено для герметизации циллиндрических контейнеров из алюминиевых сплавов и может быть использовано в фармацевтической, химической, пищевой и атомной промышленности. Устройство для герметизации капсул алюминиевых содержит электродуговой сварочный аппарат, соединенный со сварочной головкой, закрепленной в механизме позиционирования сварочной головки, баллон с защитным газом и регулятором расхода защитного газа, сварочный патрон-держатель капсул алюминиевых с механизмом вращения и регулятором скорости вращения. При этом устройство дополнительно снабжено отражателем-концентратором защитного газа в зоне сварки и термовоздушным нагревателем заготовки капсулы алюминиевой. Устройство выполнено с возможностью измерения и регулирования температуры нагрева заготовки капсулы алюминиевой.Технический результат: обеспечение качественной герметизации алюминиевых изделий с малым замкнутым объемом газа и упрощение конструкции устройства.

УСТРОЙСТВО ДЛЯ ПОДВОДНОЙ СВАРКИ

Полезная модель относится к установке для подводной механизированной сварки и может быть использована для проведения подводных сварочных работ при ремонте гидротехнических сооружений, морских стационарных платформ и корпусов судов, а также магистральных трубопроводов. Технический результат полезной модели заключается в повышении надежности устройства за счет защищенности механизма подачи от влияния агрессивной наружной среды. Устройство содержит корпус из ударопрочного пластика, держатель с контактным наконечником, соединенный с корпусом с помощью направляющего канала, в котором расположена подаваемая в зону сварки электродная проволока, токоподвод, связывающий источник электрического тока и держатель. В корпусе размещены катушка с намотанной на нее электродной проволокой, шаговый электродвигатель с редуктором роликового механизма подачи проволоки. Редуктор и шаговый двигатель размещены в отдельной емкости, заполненной диэлектрической жидкостью и имеющей разгрузочное устройство, выполненное ...

СПОСОБ АРГОНОДУГОВОЙ СВАРКИ

Изобретение может быть использовано при сварке плавящимся или неплавящимся электродом, осуществляемой с подачей присадочной проволоки на основе титана. Проволоку сварочную или присадочную предварительно нагревают в среде азота до температуры, достаточной для образования на поверхности проволоки защитной пленки из нитрида титана. Нагрев также можно производить до температуры, близкой к температуре плавления материала проволоки. Осуществление данного способа позволяет значительно понизить пористость металла сварного шва. 1 з.п. ф-лы.

УСТАНОВКА ДЛЯ СВАРКИ В ЗАЩИТНОЙ ГАЗОВОЙ СРЕДЕ

Полезная модель относится к области сварочного производства и может быть использована при сварке в среде защитных газов широкого спектра конструкций, в том числе и тех, соединение которых формируется в различных пространственных положениях. Установка для сварки в защитной газовой среде содержит сварочную горелку, емкости для хранения защитных газов и магистрали для подвода газов к горелке. Установка снабжена емкостью для прохождения или смешивания газов, имеющей входные патрубки, каждый из которых магистралью соединен с одной из емкостей для хранения газа, и выходным патрубком, соединенным магистралью со сварочной горелкой, причем в каждой магистрали, соединяющей емкость для хранения газа с емкостью для прохождения или смешивания газов установлен дозирующий клапан, исполнительный механизм которого связан с блоком управления. 1 п ф-лы, 1 илл.

ТОКОПОДВОДЯЩИЙ НАКОНЕЧНИК

Токоподводящий наконечник, применяется в сварочных полуавтоматах с использованием защитных газов. Ставится задача уменьшения расхода защитного газа, особенно, такого дорогостоящего как аргон. Это решается следующим образом. Токоподводящий наконечник содержит нерабочую часть 1 с резьбой и рабочую часть 2 в виде трехлучевой звезды с центральным каналом 3 для направления плавящегося электрода и тремя продольными газовыми каналами 4, параллельными центральному каналу. Техническим результатом предлагаемой конструкции является локализация подачи защитного газа непосредственно в зону горения сварочной дуги. Рабочая часть изготовлена в трехкулачковом патроне деформированием трубчатой заготовки, внутрь которой перед деформированием вставлены центральная калиброванная проволочка для формирования центрального канала и три проволочки для формирования трех продольных газовых каналов. После формования все проволочки удаляются. Сущность технического предложения поясняется чертежом.

СПОСОБ АВТОМАТИЧЕСКОЙ СВАРКИ ТРУБ

Изобретение относится к способу автоматической аргонодуговой сварки труб и может найти применение для сварки длинномерных труб переменного сечения для ядерных реакторов. Сварку выполняют автоопрессовкой. После выполнения необходимых для формирования шва сварочных проходов в процессе сварки выполняют дополнительный проход, равный 0,9 оборота основного прохода. В результате повышается качество труб за счет обеспечения минимальных угловых сварочных деформаций. 4 ил.

УСТРОЙСТВО ДЛЯ ИМПУЛЬСНОЙ ПОДАЧИ ЗАЩИТНОГО ГАЗА ИЛИ ЖИДКОСТИ

Использование: устройство для импульсной подачи защитного газа или жидкости используется для обеспечения импульсно пепеременной подачи рабочей среды на низких и высоких частотах в различных устройствах, например при сварке различных сталей, сплавов алюминия в среде защитных газов, при создании систем жизнеобеспечения в земной и космической медицине, а также при создании контрастного душа. Сущность: устройство для импульсной подачи защитного газа или жидкости содержит корпус с двумя впускными и одним выпускным каналами, камеру смешения и подвижный клапанный элемент с приводом его перемещения. Камера смещения образована полым цилиндрическим корпусом и втулками, в которых с возможностью осевого перемещения установлены регулировочные винты-штуцера впускных каналов. Установленный в камере смешения клапанный элемент имеет цилиндрическую часть с центральной кольцевой проточкой и с продольными канавками по разные стороны от проточки, выполненные со смещением на заданный угол, и две торцевые конические ...

Способ гибридной лазерно-дуговой сварки кольцевых поворотных стыков трубопроводов

Изобретение относится к области сварки и, в частности, автоматической гибридной лазерно-дуговой многопроходной сварке c Ү-образной разделкой свариваемых встык кромок в среде защитных газов с присадочной проволокой со смещением с зенита и применением техники сканирования луча лазера кольцевых швов поворотных стыков стальных трубопроводов. Осуществляется способ автоматической многопроходной гибридной лазерно-дуговой сварки в среде защитных газов со смещением с зенита и с использованием техники сканирования луча лазера с заполнением «Y» разделки свариваемых кромок поворотных стыковых кольцевых соединений, включающий подачу присадочной проволоки и одновременное воздействие на нее непрерывным лазерным излучением и электрической дуги с образованием общей сварочной ванны. Обеспечивается получение бездефектного поворотного кольцевого сварного соединения стальных трубопроводов с щелевой «Y» разделкой с притуплением свариваемых кромок. 7 з.п. ф-лы, 3 ил.

СПОСОБ ПЛАЗМЕННОЙ НАПЛАВКИ И СВАРКИ КОМБИНАЦИЕЙ ДУГ

Изобретение может быть использовано для послойной плазменной наплавки или сварки, в частности при ремонте изношенных деталей, выращивании деталей (3D-печать). В канале плазмообразующего сопла 1 по нормали к его оси установлена высокотемпературная вставка 3. Присадочную проволоку 2 подают по нормали к поверхности изделия 5. Один источник питания сварочного тока 4 подключен к плазмообразующему соплу 1 и присадочной проволоке 2, второй источник 6 подключен к плазмообразующему соплу 1 и изделию 5. Между присадочной проволокой 2 и высокотемпературной вставкой 3 возбуждают электрическую дугу 7 от источника 4, а между высокотемпературной вставкой и изделием формируют сжатую дугу 8. Нагрев присадочной проволоки 2 осуществляют свободной дугой 7 и сжатой дугой 8. Плавление проволоки осуществляется на весу или непосредственно в сварочной ванне. Нагрев изделия 5 производят сжатой дугой 8. Изобретение обеспечивает возможность наложения швов по сложной траектории, что особенно важно при трехмерной наплавке ...

УСТАНОВКА ДЛЯ АВТОМАТИЧЕСКОЙ АРГОНОДУГОВОЙ СВАРКИ ПОВОРОТНЫХ СТЫКОВ

Изобретение относится к сварочному оборудованию, в частности к установкам для автоматической аргонодуговой сварки поворотных стыков в цеховых условиях. На основании установлены стойка со сварочной головкой и механизмом ее перемещения и трубкой для подачи защитного газа к сварочной головке, вращатель и система управления. Установка также имеет бесконтактный датчик, опорную гайку, жесткую и съемные трубки и сопло. Вращатель выполнен в виде поворотного стола. Привод стола выполнен в виде электродвигателя с встроенным тахогенератором. Жесткая трубка установлена вертикально по центру стола и связана со съемными трубками. На верхней съемной трубке закреплена консольная плоская пружина с закрепленным на ней дополнительным соплом. Стойка выполнена с наружной резьбой и на ней размещена опорная гайка. Такая конструкция установки позволяет расширить технологические возможности и повысить качество сварки. 1 з.п.ф-лы, 2 ил.

СПОСОБ СВАРКИ ПЛАВЛЕНИЕМ ИЗДЕЛИЙ ИЗ МЕДИ, ПРЕИМУЩЕСТВЕННО ЧАСТЕЙ КРИСТАЛЛИЗАТОРА ПО ЗАМКНУТОМУ КОНТУРУ

Изобретение относится к способу плазменной сварки по замкнутому контуру стыковых соединений, в частности к способам сварки толстостенных изделий, например изложниц кристаллизаторов для печей вакуумно-дугового переплава металла. Сущность изобретения: предварительный нагрев и сварку ведут плазматронами 3, 4 и 5, объединенными в группу, по меньшей мере, из трех плазматронов, каждый из которых подсоединяют к одной из фаз трехфазного источника питания. Плазматроны 3, 4 и 5 и свариваемые части 1 и 2 кристаллизатора имеют относительное перемещение, при этом плазматроны 3, 4 и 5 перемещаются вдоль стыка свариваемых частей, а их анодные пятна располагаются последовательно на стыке. При относительном перемещении под третьим плазматроном образовывается сварочная ванна, которая в дальнейшем, остывая, превращается в сварной шов. Относительное перемещение плазматронов и свариваемых изделий ведут до совмещения анодного пятна второго плазматрона каждой группы плазматронов с началом сварного шва, затем ...

СПОСОБ ДУГОВОЙ СВАРКИ В ЗАЩИТНЫХ ГАЗАХ С ВОДЯНЫМ ЭКРАНОМ

Изобретение применимо в различных отраслях машиностроения для соединения металлических материалов. Способ дуговой сварки в защитных газах осуществляют горелкой с водяным экраном. Водяной экран ограничивает дугу и сварочную ванну. Его подают в форме обратного конуса через кольцевой канал горелки. Толщину слоя экрана уменьшают сверху вниз. Перед входом в кольцевой канал экран пропускают через винтовые каналы. Экрану придают вращательное движение. Воду экрана в самой его нижней части у поверхности изделия собирают и отводят вакуум-насосом с ресивером. Отводимую воду многократно используют по замкнутому циклу с охлаждением и частичным пополнением. 2 ил.

СПОСОБ МНОГОСЛОЙНОЙ СВАРКИ ТРУБ

Изобретение относится к способу сварки труб большого диаметра, в частности к сварке сформованных цилиндрических заготовок для улучшения эксплуатационных характеристик труб и повышения производительности сварки. Техническим результатом изобретения является повышение процесса изготовления труб, снижение погонной энергии сварки, уменьшение зоны термического влияния на основной металл, повышение механических свойств металла шва и околошовной зоны, уменьшение уровня остаточных напряжений, улучшение геометрии трубы и формы шва. Технический результат достигается введением дополнительной операции - наложением рабочего корневого шва минимальной ширины и с максимальным проплавлением притупления кромок. При выполнении рабочего корневого шва полностью переваривают сваренный до него технологический шов. После этого накладывают рабочие внутренний и наружный швы, перекрывающие корневой шов с обеих сторон. 4 ил.

Способ легирования наплавленного металла при дуговой сварке и наплавке

Изобретение относится к способам легирования при электродуговой сварке и наплавке и может быть использовано в различных отраслях промышленности, преимущественно при сварке и наплавке слоев металла со специальными свойствами. Способ включает подачу в зону сварки и наплавки защитной газовой среды и возбуждение дуги. В качестве защитной газовой среды используют восстановительные газовые смеси на основе монооксида углерода, содержащие пары металлоорганических соединений, имеющих в своем составе легирующие элементы. В качестве металлорганических соединений могут быть использованы карбонил хрома, или карбонил молибдена, или карбонил вольфрама, или карбонил марганца. Техническим результатом является расширение технологических возможностей, повышение твердости и прочности сварного шва или наплавленного металла за счет введения легирующих элементов из газовой среды с возможностью быстрого изменения химического состава наплавленного металла и исключения выгорания легирующих элементов из свариваемого ...

СПОСОБ СВАРКИ ПОГРУЖЕННЫМ ЭЛЕКТРОДОМ

Изобретение: способ дуговой сварки в среде гелия, в частности, погруженным электродом титановых сплавов средней и повышенной толщины - может найти применение в машиностроении. В заключительный период сварки при подъеме электрода в исходное состояние через сопло горелки подают газовую смесь, состоящую из плазмообразующего и защитного газов. При этом улучшается качество сварки, устраняется операция по удалению окисного слоя с поверхности электрода и сварного шва.

УСТРОЙСТВО ДЛЯ ИМПУЛЬСНОЙ ПОДАЧИ ЗАЩИТНОГО ГАЗА ИЛИ ЖИДКОСТИ

Устройство используется либо при сварке различных металлов, либо в медицине для обеспечения жизнедеятельности человека или для контрастного душа и т. д. Устройство состоит из импульсного источника тока, электромагнитных катушек, размещенных на цилиндрических втулках, соединенных между собой цилиндрическим полым корпусом, внутри которого подвижно установлен сердечник из магнитного материала с двумя конусными и цилиндрическими поверхностями, между которыми размещена проточка с прямоугольным сечением, в которую через продольные канавки, выполненные на противолежащих цилиндрических частях сердечника со смещением их одной относительно другой, поступают противотоком защитные газы или жидкость через штуцеры, выполненные на конце винтов механизма регулирования хода сердечника, подвижно размещенного в полости втулки, причем винты выполнены из материала, модуль упругости которого выше модуля упругости сердечника, а конусные поверхности сердечника имеют угол ≥ 90°.

УСТРОЙСТВО ДЛЯ ДУГОВОЙ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

... 1. Устройство для дуговой сварки в среде защитных газов, содержащее мундштук со смотровым каналом, средство визуального наблюдения зоны сварки через мундштук, патрубок подачи защитного газа в зону сварки, а также электрододержатель с электродом, соединенным с токоподводом, отличающееся тем, что мундштук выполнен в виде полого усеченного конуса, направленного меньшим окном к зоне сварки, а средство визуального наблюдения зоны сварки - в виде размещенных на большем окне мундштука смотрового стекла и расположенных над ним светофильтра и светильника для направления светового потока в смотровой канал перед началом сварки, при этом патрубок подачи защитного газа сообщен со щелевым каналом, расположенным в мундштуке под смотровым стеклом и направленным вдоль его поверхности. 2. Устройство по п. 1, отличающееся тем, что светофильтр и светильник поворотно закреплены на мундштуке на вертикальной оси, при этом светофильтр размещен с возможностью взаимодействия со светофильтром для автоматического ...

СПОСОБ ЭЛЕКТРОСВАРКИ

Предлагаемый способ относится к электросварке двух свариваемых деталей при помощи пропускания электрического тока через место сварки и использование текущего вещества, например инертного газа или защитного газа для подавления или предотвращения, или исключения окисления места сварки. Текущее вещество подают через постоянное отверстие в одной свариваемой детали и направляют к месту сварки так, что текучее вещество распространяется над местом сварки радиально из отверстия. Текучее вещество может представлять собой инертный газ, например аргон или азот, возможно смешанный с двуокисью углерода; в другом варианте текучее вещество может представлять собой жидкость на основе воды, которая будет испаряться в месте сварки.

ОТСЕКАТЕЛЬ ГАЗА

Отсекатель газа относится к сварке, в частности к технологическому оборудованию, регулирующему расход защитного газа. Цель - сокращение расхода газа путем регулирования проходного сечения газопроводящего канала в зависимости от режимов сварки. При снятии горелки с крюка отсекатель газа открывается и газ поступает в зону сварки. Приведены геометрические размеры успокоительной камеры.

ГОРЕЛКА ДЛЯ ДУГОВОЙ СВАРКИ

Использование: для механизированной дуговой сварки в среде защитных газов или порошковой проволокой. Сущность изобретения: горелка содержит укрепленную на шланге рукоятку с защитным экраном. Рукоятка выполнена в виде кожуха с плоским и изогнутым участками. Плоский участок крепится к шлангу и мундштуку, а изогнутый предназначен для охвата кистью руки. Ось изогнутого участка расположена скрещенно относительно оси шланга. Защитный экран выполнен спиралеобразным. Рукоятка и защитный экран могут быть сочленены шарнирно между собой. Ось сочленения непараллельна оси шланга. 1 з.п. ф-лы, 4 ил.

СПОСОБ СВАРКИ ТИТАНА И ЕГО СПЛАВОВ

Способ сварки титана и его сплавов, отличающийся тем, что защита обратной стороны шва от кислорода и азота воздуха осуществляется защитным газом, подаваемым через каналы, выполняемые предварительно в одном из свариваемых элементов по кромке, прилегающей к сварному шву, при зазоре, большем со стороны шва, чем с обратной стороны.

СПОСОБ СТЫКОВОЙ СВАРКИ ОПЛАВЛЕНИЕМ ТОНКОСТЕННЫХ ОБОЛОЧЕК

... 1. Способ стыковой сварки оплавлением тонкостенных оболочек, характеризующийся тем, что содержит подготовку стыкуемых торцов, установку в стык на центрирующих приспособлениях и совместное плавление при условии предварительного выдерживания установленного зазора между примыкающими друг к другу поверхностями достаточного для образования сварки, при этом на каждой из стыкуемых оболочек путем пластического деформирования осуществляют деформацию микровыступов по свариваемой поверхности торца с его осадкой на величину Δh=аδ+bδ2/R роликами с параметром шероховатости Ra≤0,16 мкм, перемещают деформируемый металл по торцу заготовки в сторону внутренней поверхности и формируют на ней внутренний кольцевой отросток - поясок шириной в пределах (0,5-1,5)δ и толщиной в пределах (0,2-0,5)δ, устанавливают стыкуемые оболочки в центрирующее по наружному диаметру устройство и предварительно по периметру в плоскости стыка осуществляют их точечную сшивку-сварку с шаговым перемещением электрода (20-50)δ, причем ...

ГОРЕЛКА ДЛЯ ЭЛЕКТРОСВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

Изобретение относится к горелке для электросварки в среде защитного газа. Горелка содержит токогазопроводящий шланг, на конце которого закреплен мундштук со сменным токопроводящим наконечником, сопло, на котором установлена подвижная насадка и опорный штифт. Насадка выполнена в виде хомута с червячным винтом и выштампованной полупетлей, в которую введен опорный штифт. Насадка имеет глубину, равную диаметру опорного штифта. Рабочий конец опорного штифта выполнен в виде конуса или клюшки, или шарика. Тыльный конец опорного штифта отогнут на 90° для предотвращения выпадения опорного штифта из хомута. В результате улучшается качество сварного шва. 8 ил., 2 фото.

СПОСОБ ПОЛУЧЕНИЯ ТРУБНЫХ ШПИЛЕК

Изобретение относится к области обработки металлов давлением и может быть использовано при изготовлении трубных шпилек, преимущественно из разнородных материалов, для U-образных теплообменных аппаратов. Производят подготовку труб к сварке, гибку конца одной из труб по радиусу, сборку этого конца трубы с ответной трубой и образование неразъемного соединения труб аргоно-дуговой сваркой с использованием присадочного материала. Неразъемное соединение образуют перед гибкой формированием комбинированного сварного шва с последующим пластическим деформированием самого шва и околошовных зон. При формировании сварного шва диффузионной сваркой соединяемых труб и присадочного материала по стыку образуют внутренний шов, а наплавлением присадочного материала на внешнюю поверхность стыка труб - внешний шов. При сборке между трубами устанавливают кольцо из присадочного материала со ступенчатым внутренним профилем. Далее производят осевое сжатие труб до получения контактных давлений на торцах труб и боковых ...

СПОСОБ ГЕРМЕТИЗАЦИИ ИЗДЕЛИЙ ДУГОВОЙ СВАРКОЙ

Изобретение касается сварки, в частности способов герметизации изделий с малым замкнутым объемом газа типа радиоизотопных источников, и может быть использовано в приборостроении, медицине и энергетике, а также в других отраслях народного хозяйства. Цель изобретения - повышение качества замыкающего сварного соединения при герметизации радиоизотопных источников из тугоплавких и химически активных металлов толщиной до 2 мм при обслуживании производства манипуляторами. При герметизации изделий с малым замкнутым объемом газа типа радиоизотопных источников сварку соединения осуществляют отдельными участками неплавящимся электродом в среде защитного газа. Предварительно на образцах определяют интенсивность Uкр истечения газа через соединение из внутреннего объема изделия, при которой образуется выплеск жидкого металла сварочной ванны. Затем в процессе сварки соединения постоянно контролируют текущее значение интенсивности и при увеличении ее до (0,8-0,9)Uкр процесс прекращают и выдерживают изделие ...

СПОСОБ СВАРКИ КОМБИНАЦИЕЙ ДУГ

Изобретение относится к области сварочного производства и может быть использовано при механизированной сварке в среде инертного газа дугами прямого и косвенного действия. Способ включает зажигание дуги прямого действия между неплавящимся электродом и изделием и зажигание дуги косвенного действия между неплавящимся и плавящимся электродами, при этом плавящийся электрод непрерывно подают в дугу прямого действия. При этом питание дуг прямого и косвенного действия осуществляют от разных источников питания с периодической пульсацией величины однонаправленных токов между малым и большим током, причем во время увеличения тока дуги прямого действия ток дуги косвенного действия уменьшают, а во время уменьшения тока дуги прямого действия ток дуги косвенного действия увеличивают. Использование изобретения позволяет повысить стабильность сварочного процесса и тем самым качество сварного соединения. 1 з.п. ф-лы, 5 ил.

СПОСОБ ДУГОВОЙ СВАРКИ ДВУМЯ ЭЛЕКТРОДАМИ

Способ может быть использован для получения сварных соединений и наплавки слоев с особыми свойствами. Сварку ведут двумя плавящимися электродами дугами прямого и косвенного действия с использованием источника питания постоянного тока. Дополнительно используют источник питания переменного тока, один из сварочных выводов которого подключают к изделию, а второй вывод через электрические вентили подключают к электродам. Обеспечивают поочередное переключение в процессе сварки полярности источника питания в соответствии с частотой переменного тока и поочередное зажигание между электродами и изделием дуги прямого действия прямой и обратной полярности. За счет использования переменного тока в дугах, горящих на изделие, изменяют сосредоточенность теплового потока в изделии и проплавляющую способность дуги. Способ обеспечивает снижение отрицательного воздействия магнитного дутья при использовании технологических свойств как катодного, так и анодного пятен дуги на изделии. 4 ил., 1 пр.

Способ дуговой двухэлектродной механизированной сварки

Изобретение может использоваться при аргонодуговой сварке в инертных газах алюминиевых сплавов, высоколегированных сталей, титановых сплавов. Используют один неплавящийся электрод и один плавящийся, который подают механизировано в сварочную ванну. Дуга с электродов горит поочередно вследствие отключения дуги на втором электроде, причем сварочную дугу обрывают принудительно путем выключения тока в сварочной цепи электродов. Источник питания переменного тока обеспечивает формирование разнополярных импульсов тока прямоугольной формы. Положительный полюс источника питания периодически подключается к неплавящемуся электроду, а отрицательный полюс - к плавящемуся. Это обеспечивает достаточно высокую стойкость неплавящегося электрода и высокую скорость расплавления плавящегося электрода, в 1,6-2,0 раза превышающую скорость на обратной полярности. Стабильность скорости расплавления электродной проволоки на прямой полярности достигается за счет постоянных гашений и зажиганий дуги с высокой частотой ...

УСТРОЙСТВО ДЛЯ ОТРАБОТКИ ТЕХНОЛОГИИ СВАРКИ

... 1. Устройство для отработки технологии сварки, содержащее прижимное приспособление, устройство для сварки и измерительное устройство, отличающееся тем, что измерительное устройство выполнено в виде одного или нескольких датчиков усилия. ! 2. Устройство по п.1, отличающееся тем, что прижимное приспособление содержит один или несколько силовых приводов, обеспечивающих нагружение изделия. ! 3. Устройство по п.2, отличающееся тем, что силовые приводы одновременно являются датчиками усилия. ! 4. Устройство по п.2, отличающееся тем, что силовые приводы являются вибрационными силовыми приводами. ! 5. Устройство по п.2, отличающееся тем, что в качестве силовых приводов, используют пьезоэлектрические приводы или магнитострикционные приводы. ! 6. Устройство по п.1 или 2, отличающееся тем, что оно содержит нагреватели, обеспечивающие подогрев изделия. ! 7. Устройство по п.1 или 2, отличающееся тем, что оно содержит программируемый контроллер с каналом получения данных от датчиков усилия. ! 8. Устройство ...

СПОСОБ СВАРКИ ПЛАВЛЕНИЕМ

... 1. Способ сварки плавлением, при котором сварку производят с помощью местного источника тепла, а детали в процессе сварки подогревают другим источником тепла, отличающийся тем, что детали подогревают со стороны, противоположной свариваемому стыку, до температуры, при которой происходит пластическая деформация металла. 2. Способ по п. 1, отличающийся тем, что местный подогревающий источник тепла располагают против сварочного источника тепла и перемещают синхронно с ним. 3. Способ по п. 1, отличающийся тем, что сторону детали, расположенную против свариваемого стыка, подогревают источником тепла, распределенным по линии, лежащей в плоскости, проходящей через стык свариваемых деталей и перпендикулярной подогреваемой поверхности детали. 4. Способ по пп. 1 и 3, отличающийся тем, что эффективную мощность подогревающего источника тепла изменяют по мере движения сварочного источника тепла по линии стыка деталей. 5. Способ по п. 4, отличающийся тем, что эффективную мощность подогревающего источника ...

СПОСОБ ПОЛУЧЕНИЯ МАРТЕНСИТНОЙ СТАЛИ И СООТВЕТСТВУЮЩАЯ МАРТЕНСИТНАЯ СТАЛЬ

ОХЛАЖДАЕМОЕ СВАРОЧНОЕ СОПЛО

СВАРОЧНАЯ ГОРЕЛКА

Сварочная горелка, содержащая корпус с соплом, тракты подачи сварочной проволоки и подвода защитного газа, расположенные в центральной трубе, а также систему электроуправления с выключателем, отличающаяся тем, что выключатель выполнен в виде п-контактов, равномерно расположенных по окружности, при этом неподвижные части контактов посредством плоских пружин закреплены на центральной трубе, а подвижные на внутренней поверхности кольцевой втулки, установленной в ответной проточке корпуса, причем между центральной трубой и внутренней поверхностью кольцевой втулки установлено п-прокладок из эластичного материала, равномерно расположенных по окружности.

СПОСОБ ГИБРИДНОЙ ЛАЗЕРНОЙ/ДУГОВОЙ СВАРКИ И ИСПОЛЬЗУЮЩИЙ ЕГО СПОСОБ ИЗГОТОВЛЕНИЯ СВАРНОГО ИЗДЕЛИЯ

... 1. Способ гибридной лазерной/дуговой сварки для стыковой сварки плоских плит из нержавеющей стали, титана или титанового сплава или стыковой сварки обоих краев полосковой плиты из нержавеющей стали, титана или титанового сплава, из которой получают трубчатую форму, при этом в состыкованной части сварку осуществляют, направляя лазерное излучение и дуговой разряд по одной линии сварки таким образом, что за лазерной сваркой следует дуговая сварка TIG.2. Способ сварки по п.1, в котором фокусная точка лазерного луча для лазерной сварки занимает положение над подлежащим сварке целевым изделием, и лазерный луч расфокусируется таким образом, чтобы сделать диаметр лазерного луча, направленного на подлежащее сварке целевое изделие, не менее чем 1 мм.3. Способ сварки по п.1 или 2, в которомпри лазерной сварке лазерный луч направлен наклонно к направлению движения сварки, таким образом, что угол между вертикальным направлением и лазерным лучом составляет 10° или менее, или лазерный луч направлен вертикально ...

СВАРОЧНОЕ УСТРОЙСТВО И СПОСОБ СВАРКИ

СПОСОБ ЭЛЕКТРОДУГОВОЙ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ И ДЕРЖАТЕЛЬ ДЛЯ НЕГО

... 1. Способ электродуговой сварки в среде защитных газов, включающий подачу сварочного электрода механизмом подачи, защитного газа и организацию сварочной дуги, отличающийся тем, что последовательно подают электроды ограниченной длины, друг за другом встык, при этом электроды выполняют из сварочной проволоки с внешним конусом на одном конце и с ответным внутренним конусом на другом конце, а угол конуса выбирают из условия самозаклинивания. ! 2. Способ по п.1, отличающийся тем, что на конусах электродов выполняют пологую резьбовую навивку, не более одного оборота. ! 3. Держатель для электродуговой сварки в среде защитных газов, содержащий элемент подвода электрического тока и защитного газа, трубку подачи защитного газа и электрического тока, механизм подачи электрода, скользящий токопровод, сопло, рукоятку, отличающийся тем, что в механизме подачи электрода размещена электроизолирующая трубка для ввода сварочного электрода.

СПОСОБ ДУГОВОЙ СВАРКИ В СРЕДЕ ЗАЩИТНЫХ ГАЗОВ

Изобретение относится к сварке, в частности, неплавящимся электродом в среде защитных газов и может быть использовано в энергетической и химической промышленности при сварке трубопроводов из материалов, склонных к образованию горячих трещин, когда в процессе сварки требуется осуществлять интенсивное охлаждение стыка, например, азотом. Цель изобретения - повышение качества сварного соединения путем исключения образования в нем пор за счет устранения конденсации влаги в стыке. Способ дуговой сварки в среде защитных газов осуществляют с предварительным и сопутствующим охлаждением стыка и металла шва прижимным приспособлением. Приспособление охлаждают до температуры ниже температуры точки росы до прижатия его к изделию, а дугу зажигают до момента выпадания росы на стыке. Это позволяет устранить переохлаждение стыка перед сваркой ниже точки росы и попадание влаги в шов. 3 ил.

СПОСОБ ДУГОВОЙ СВАРКИ АЛЮМИНИЕВЫХ СПЛАВОВ

Способ дуговой сварки алюминиевых сплавов, осуществляющейся на стандартных режимах, отличающийся тем, что свариваемые конструкции до начала и в течении всего процесса сварки обдувают потоком подогретого воздуха не менее чем на 2°C, со скоростью его движения в диапазоне от 0,02 до 0,5 метров в секунду, независимо от скорости истечения защитного газа при процессе сварки.

ГОРЕЛКА ДЛЯ ДУГОВОЙ СВАРКИ В ЗАЩИТНЫХ ГАЗАХ

Горелка для дуговой сварки в защитных газах, содержащая токоподводящий канал для направления плавящегося электрода, мундштук и сопло, соединенное с каналом подвода защитного газа, отличающаяся тем, что сопло выполнено длиной L, определяемой по формуле где D - диаметр выходного отверстия сопла 3, D1 и D2 - внутренний и внешний диаметры кольцевого канала соответственно, L2 - длина основной части сопла, представляющей собой кольцевой цилиндрический канал, а длина L1 конусной части сопла равна: L1= 2•D. Угол конусности β2 внешних стенок выходной части сопла не больше угла конусности внутренних, последний из которых равен β1 = 8°.

СПОСОБ ДУГОВОЙ СВАРКИ В ЗАЩИТНЫХ ГАЗАХ С ВОДЯНЫМ ЭКРАНОМ

Способ дуговой сварки в защитных газах с водяным экраном в форме обратного конуса, ограничивающих дугу и сварочную ванну, отличающийся тем, что обеспечивают уменьшение толщины слоя водяного экрана сверху вниз, и водному экрану перед входом в кольцевую щель придает вращательное движение, пропуская его через винтовые каналы, воду конического водяного экрана в самой нижней части у поверхности свариваемого изделия собирают и отводят посредством вакуума с ресивером, с многократным использованием отводимой воды по замкнутому циклу с охладжением и частичным пополнением.

СПОСОБ СВАРКИ ПЛАЗМЕННОЙ ДУГОЙ

... 1. Способ сварки плазменной дугой, согласно которому в зону плазменной дуги непрерывно подают поток плазмообразующей газовой среды, отличающийся тем, что в зону сварки дополнительно непрерывно подают поток газовой среды для защиты зоны сварки от воздействия внешней среды, причем подачу плазмообразующей и/или защитной газовой среды осуществляют с периодическим изменением расхода плазмообразующей и/или защитной газовой среды, которое осуществляют по закону волны с прямоугольной формой ее периода, при этом при изменении расхода плазмообразующей и/или защитной среды изменяют ее состав.2. Способ сварки плазменной дугой по п.1, отличающийся тем, что для формирования защитного газового потока используют однородный газ или смесь газов, подаваемый(ую) в зону сварки с постоянным расходом, а для формирования плазмообразующего газового потока используют два различных газа или две смеси газов, подаваемых в зону плазменной дуги с периодическим изменением расхода и состава газовой среды при соотношении ...

СПОСОБ СВАРКИ ДЕТАЛЕЙ

... 1. Способ сварки деталей из металлов, включающий возбуждение ультразвуковых колебаний в свариваемой детали и нагрев места соединения деталей до расплава металла деталей в месте соединения их, отличающийся тем, что ультразвуковые колебания возбуждают в одной из свариваемых деталей, путем пропускания через нее импульсов сварочного тока длительностью от 0,5 до 1000 мкс и скважностью от 1, 0 до 0,001. 2. Способ по п.1, отличающийся тем, что в интервале частот от 50 до 2000 кГц регистрируют частоту импульсов тока и величину падения напряжения на дуге, а затем определяют резонанс ультразвуковых механических колебаний в детали по минимальной величине падения напряжения на дуге. 3. Способ по п.1, отличающийся тем, что в интервале частот от 50 до 2000 кГц регистрируют частоту и амплитуду ультразвуковых механических колебаний в свариваемой детали, а частоту возбуждения ультразвуковых механических колебаний в свариваемой детали выбирают равной частоте, при которой амплитуда ультразвуковых механических ...

Лазерная установка обработки заготовок

Полезная модель относится к устройствам, предназначенным для использования в промышленной технологии лазерной обработки изделий в специальной газовой среде внутри камеры в сочетании с лазерным лучом. Лазерная установка обработки заготовок в газовой среде содержит кожух, защищающий обрабатываемые заготовки, технологический стол для фиксированного размещения обрабатываемых заготовок под съемным защитным кожухом, выполненным с нижней прижимной юбкой к поверхности технологического стола и с верхним защитным стеклом, с возможностью подачи лазерного луча. Металлическая кольцевая перфорированная трубка для отвода отработанного газа установлена в основании защитного кожуха ниже уровня обрабатываемой поверхности заготовок. Откачивающий насос с фильтром на выходе с регулируемой производительностью отвода газа подключен к кольцевой перфорированной трубке отвода отработанного газа. Защитный кожух выполнен съемным стационарным с боковым отверстием и с нижней прижимной юбкой из упругого резинотехнического ...

Способ дуговой сварки проволоки с листом

Способ соединения трубы с концевой деталью и устройство для его осуществления

Горелка для дуговой сварки

Изобретение относится к дуговой сварке , в частности к сварке плавящимся электродом в среде защитных газов с отсосом пылегазовыделений из зоны сварки, и может быть использовано в различных отраслях промышленности при пол автоматической сварке Цель изобретения - повышение эффективности отсоса газопылевыделе- ний из зоны сварки путем закрччивания центрального ядра и периферийного потока отсасываемого газа и регулировки количества отсасываемого газа из периферийной зоны Горелка состоит из цилиндрического аспирационного сопла 2, газозащитного сопла 6, регулировочного кольца На ней поверхности сопла 2 выполнены винтовые прорези с отогнутыми кромками в сторону набегающего потока отсасываемого га за Регулировочное кольцо установлено с возможностью перемещения по винтовомч направляющему канал} 19 при помощи шпинька 18 и фиксации его винтом 21 1 з п ф-лы, 3 ил.

Способ дуговой сварки плавлением сталей

Способ дуговой сварки аустенитных сталей

Изобретение относится к дуговой сварке аустенитных сталей и может найти применение в машиностроении. Цель изобретения - повышение хладостойкости сварного соединения при криогенных температурах. Способ дуговой сварки аустенитных сталей включает предварительное, сопутствующее и послесварочное охлаждение. Предварительное и сопутствующее охлаждение осуществляется до минусовых температур. Сварка ведется периодически участками с отключением дуги и охлаждением участка до 500 - 600°С без прекращения подачи защитного газа.

Горелка для дуговой сварки в защитной среде с отсосом вредных выделений из зоны сварки

Сопло к горелкам для электродуговой сварки

... 1. СОПЛО К ГОРЕЛКАМ ДЛЯ ЭЛЕКТРОДУГОВОЙ СВАРКИ, в защитных газах, содержащее полый корпус, в полости которого расположено спиралевидное ребро, отличающееся тем, что, с целью повьшения срока службы сопла путем повьшения эффективности его охлаждения, расстояние между витками ребра и угол наклона ребра к стенке корпуса вьтолнены увеличивающимися в направлении от рабочего торца сопла. 2. Сопло ПОП.1, отличающ е в с я тем, что угол наклона ребра к стенке корпуса увеличивается от 45 у рабочего торца сопла до60° у его нерабочего торца./ ...

Горелка для сварки в среде защитных газов

Способ импульсной дуговой сварки плавящимся электродом

СПОСОБ №ШУЛЬСНОЙ ДУГОВОЙ СВАРКИ ПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ, при котором электрод вращают по радиусу, равному половине ширины разделки кромок, и перемещают вдоль свариваемых кромок, отличаюиийс я тем, что, с целью повышения производительности процесса и качест ва сварных соединений, дугу возбуждают через каждые 0,1 3-0,241Г рад при продолжительности импульса сварочного тока равной половине паузы, угловой скорости вращения электрода от 0,65 до 2,8 IT рад/с и скорости линейного перемещения в пределах от 0,4 до 0,6 В мм/с, где В - ширина € разделки кромок, мм. С/) ...

Устройство для одновременной сварки двух угловых швов

УСТРОЙСТВО ДЛЯ ЭЛЕКТРОДУГОВОЙ СВАРКИ

Способ принудительного формирования границы кристаллизации сварочной ванны

Устройство для дуговой обработки

Изобретение относится к устройствам для дуговой обработки, в частности для термической резки металла, и может быть использовано при плазменной резке листового металла. Цель - повышение стабилизации дугового промежутка. Устройство состоит из горелки 1, механизма стабилизации дугового промежутка, выполненного в виде установленного со стороны рабочего торца концентрично горелке через изолированную втулку 3 кольцевого палого кожуха 2. Полость кожуха 2 разделена параллельной рабочему торцу горелки перегородкой 4, на которой со стороны рабочего торца смонтированы перфорированные втулки 6, разделенные между собой кольцевой 7 и радиальными перегородками , образуюшими рабочие полости 9. В каждой втулке 6 установлен с возможностью возвратно-поступательного перемещения золотник с магнитом, а каждая втулка через отверстие в перегородке 4 соединена с источником подачи газа. В устройстве может быть восемь или шестнадцать полостей. Чем больше полостей, тем стабильнее работа устройства, 3 ил. i (О ...

Горелка для сварки в среде защитных газов

Изобретение относится к горелкам для дуговой сварки плавящимся электродом и может быть нспользовано при изготовлении сварных конструкций в различных отраслях промышленности. Цель изобретения - повьппение удобства обслуживания и обеспечение возможности замены.износившихся деталей ...

Способ сварки тонкостенных деталей с элементами арматуры

Изобретение относится к сварке, более конкретно к способам сварки тонкостенных деталей с элементами арматуры , имеющими значительно большее сечение, и может быть использовано в приборостроении и других отраслях промышленности для изготовления мембранных , сильфонных и т.п. узлов с толщиной стенки от 0,06 до 0,8 мм. Цель - повышение качества шва и обеспечение вакуумной плотности сварного соединения. Деталь - мембрану 1 - собирают с элементом арматуры - корпу- : сом 2-й поджимают вспомогательным элементом - кольцом 3.- Вспомогательный элемент смещают oтнocиteльнo кромки мембраны на величину + 0,2t, где К 0,04-0,16;t - толщина детали, мм. При сварке путем наклона или смещения электрода в сторону вспомогательного элемента дугу напра-§ вляют на мембрану 1. Способ применяется для сварки деталей толщиной 0,06-0,8 мм. 2 ил. (Л ...

Горелка для дуговой сварки в защитных газах

Сопло к горелке для дуговой сварки

Способ защиты обратной стороны сварного шва

Изобретение касается сварки и может быть использовано в различных отраслях народного хозяйства. Цель изобретения - снижение себестоимости сварных конструкций за счет уменьшения трудозатрат и расхода аргона. Защиту обратной стороны сварного швп осуществляют путем установки экрана шириной 100-140 мм с обратной стороны свариваемых кромок на расстоянии 0,5-3,0 мм от кромок. Аргон, Iистекающий из сопла сварочной горелки, попадает в полость между экраном и обратной стороной кромок и оттесняет воздух, обеспечивая таким образом защиту обратной стороны шва от окисления .

Устройство для электродуговой сварки

Способ дуговой сварки плавящимся электродом замкнутых швов

Способ дуговой сварки в среде защитных газов

Горелка для дуговой сварки неплавящимся электродом

ГОРЕЛКА ДЛЯ ДУГОВОЙ СВАРК НЕПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ в среде защитных газов, содержащая сопло и расположенный в нем неплавящийся электрод, а также рубашку охлаждения, выполненную в виде полого герметичного кольцеобразного элемента с капиллярно-пористым покрытием на внутренней поверхности стенки, в полость которого залито рабочее вещество, отличающаяся тем,что, с целью повьш ения эффективности охлаждения сопла, рубашка выполнена с крышкой, расположенной под углом 40-50 к наг. ружной стенке, полость рубашки охлаждения заполнена рабочим веществом на 1/3-1/4, а рубашка охлаждения Встроена в сопло.

Горелка Калюжного для сварки в защитных газах

ГОРЕЛКА КАЛ ЮЖНОГО ДЛЯ СВАРКИ В ЗАЩИТНЫХ ГАЗАХ Изобретение относится к сварочному производству и .может быть использовано, для дуговой сварки деталей в среде защитного газа. Цель - обеспечение качественной защиты зоны дуги при сварке на боль7// /// /// /// /// /// Фи.2 ших скоростях. Горелка состоит из токо- подводящего мундштука 1 с каналом для направления сварочной проволоки 2 в сопле (С) 3. Сопло 3 окружает цилиндрический патрубок 4, -который может перемещаться относительно С 3 и фиксироваться в определенном положении стопорным винтом 5, На патрубке 4 закреплен пустотелый конус 6, большее основание которого направлено вниз и снабжено защитным эластичным экраном, окружающим конус с трех сторон. С 3 и патрубок 4 имеют наклонные боковые отверстия в передней части горелки. При поднятом конусе 6 горелку используют для сварки по узкому зазору, а при опущенном конусе 6 - для сварки, на больших скоростях. 1 з.п. ф-лы, 2 ил. с (Я оо со ю О1 ...

СПОСОБ ИЗГОТОВЛЕНИЯ СВАРНЫХ КОНСТРУКЦИЙ

Горелка для дуговой сварки неплавящимся электродом

... 1, ГОРЕЛКА ДЛЯ ДУГОВОЙ СВАРКИ НЕПЛАВЯЩИМСЯ ЭЛЕКТРОДОМ в среде защитных газов, содержащая головку, соединенную с рукояткой, токоподводящий элемент и спиральный газопод- водящий канал, отличающаяс я тем, что, с целью уменьшения нагрева рукоятки горелки, она снабжена теплопроводящнм цилиндрическим сердечником, выполненным со спиральными канавками на его поверхности, токоведущий элемент выполнен в виде трубки, сердечник и трубка выполнены из материалов с соотношением коэффициентов линейного расширения , равным 1,1-1,5, а спиральный газо3 ПОДВОДЯ1ДИЙ канал образован внутренней поверхностью трубки спиральными канавками сердечника, который запрессован в трубке. 2. Горелка по п. 1, о т л ичающаяся тем, что сердечник выполнен с полостью, заполненной легкоплавким материалом.

Method for welding shafts on a vertical rotational axis

A first tubular, inner radial annular seam is produced to weld together two hollow cylinders by narrow-gap tungsten inert gas arc welding. Narrow-gap metal gas-shielded arc welding is used to create another tubular, outer radial annular seam to further weld together both hollow cylinders. In this manner, the rotational axis of the rotor shaft remains vertically aligned throughout the entire production method of welding together the shaft parts. In this manner, the required production time can be advantageously reduced and the use of welding filler can be effectively decreased.

Robot system control method

In a control method of a robot system of the present invention, one of two industrial robots is used as a master robot, and the other is used as a slave robot. Data indicating the relation of the relative position and relative attitude between the master robot and the slave robot in welding conditioning work is stored as one set of information. During teaching work, in a state where the master robot and the slave robot exist at any positions, the slave robot is moved with respect to the position of the master robot so as to reproduce the relation of the relative position and relative attitude indicated by the one set of stored information, or the master robot is moved with respect to the position of the slave robot.

Non-consumable electrode type arc welding apparatus

A non-consumable electrode type arc welding apparatus includes a torch having an electrode portion and a nozzle, a gas supply that supplies, to the torch, a shielding gas flowing through a gap formed between the electrode portion and the nozzle, a first power source that applies a voltage between the electrode portion and the nozzle to generate a pilot arc, a second power source that applies a voltage between the electrode portion and a work to generate a main arc, and a controller that controls the first power source and the second power source. The electrode portion has an electrode and an electrode holding portion holding a base portion of the electrode, the electrode holding portion has a protrusion protruding toward the nozzle from the side facing the nozzle, and the protrusion and the nozzle are caused contact and separate from each other.

Tig welding machine

The present invention relates to a TIG welding machine. The TIG welding machine according to the present invention includes: a torch unit ( 400 ) disposed with an electrode ( 632 ), a wire ( 634 ) and a weaving unit ( 410 ); a welding posture control unit ( 100 ) for controlling a welding posture by rotating the torch unit ( 400 ) vertically and horizontally so as to precede the torch unit ( 400 ) with reference to the advancing direction of the torch unit ( 400 ); a weld line tracing unit ( 200 ) mounted to the welding posture control unit ( 100 ) and detecting the placed state of a base metal for welding so as to trace a weld line; and a torch transfer unit ( 300 ) for moving the torch unit ( 400 ) based on the information of the weld line which has been traced in the weld line tracing unit ( 200 ).

Method For Arc-Welding Aluminum-Coated Metal Parts Using An Inert Gas Containing Nitrogen

The invention relates to a method for electric arc welding, without a laser beam, one or more metal parts, in particular made of steel, including an aluminum surface coating, in particular a coating consisting of aluminum and silicon, using a protective gas, characterized in that the protective gas consists of a mixture of argon and/or helium, and additionally of nitrogen, in particular less than 30 volume % of nitrogen, typically 2 to 10 volume % of nitrogen. 112-. (canceled)13. A process for the electric-arc welding of at least one metallic part comprising a surface coating based on aluminum , using a shielding gas , wherein the melting of the metal of said metallic part is carried out solely by the electric arc , with no laser beam contributing to the melting , wherein the shielding gas consists of a mixture of argon and/or helium , and nitrogen , said shielding gas containing at least 0.025% and at most 30% by volume of nitrogen.1413. The process of clam , wherein the shielding gas contains at least 0.025% and at most 20% by volume of nitrogen.1513. The process of clam , wherein the shielding gas contains at least 3% by volume of nitrogen or less than 10% by volume of nitrogen.1613. The process of clam , wherein the shielding gas contains at least 4% by volume of nitrogen and at most 8% by volume of nitrogen.1713. The process of clam , wherein the shielding gas contains from 5% to 7% by volume of nitrogen.1813. The process of clam , wherein the metallic part or parts comprise a surface coating based on aluminum having a thickness between 5 and 100 μm.1913. The process of clam , wherein the metal part or parts are made of steel with a surface coating based on aluminum and silicon (Si/Al).2013. The process of clam , wherein the metal part or parts comprise a surface coating based on aluminum and silicon containing a proportion of aluminum between 5 and 100 times greater than that of silicon.2113. The process of clam , wherein the metal part or parts comprise a ...

MIG/MAG Welding of Carbon Steel with Rotating Arc and Ar/He/O2 Gas Mixture

The invention relates to a ternary gaseous mixture formed from argon, helium and oxygen, characterized in that it is formed from between 19.5 and 20.5% of helium, between 2.7 and 3.3% of Oi, and argon for the remainder (volume %), and to the use thereof as gaseous protection in a method of electric arc welding of at least one steel part to carbon, using a fusible filler wire. Preferably, the welded parts overlap or cover each other and the rotary arc welding takes place where the parts overlap. 111-. (canceled)12. A process for the electric-arc MIG/MAG welding of at least two carbon steel parts with use of a consumable filler wire , a rotating arc and gas shielding formed of a ternary gas mixture consisting of 19.5 to 20.5% of helium , of 2.7 to 3.3% of O2 and of argon for the remainder (% by volume) , wherein the consumable filler wire is melted by the rotating arc so as to obtain metal transfer by rotating liquid vein and the at least two carbon steel parts overlapping or covering one another , the rotating arc welding taking place at said overlap or covering up.13. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 19.8 to 20.2% of helium.14. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 2.8 to 3.2% of O2.15. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture containing from 2.9 to 3.1% of O2.16. The process of claim 12 , wherein the gas shielding is formed of a ternary gas mixture consisting of 20% of helium claim 12 , 3% of O2 and of argon for the remainder.17. The process of claim 12 , wherein the welded parts are in a joggled type configuration.18. The process of claim 12 , wherein the welded parts are constituent components of a pressure vessel of the hot water tank claim 12 , extinguisher claim 12 , compressor claim 12 , refrigeration device or gas cylinder type.19. The process of claim 12 , wherein the welded ...

Method to improve gmaw and gtaw welding performance

A method of controlling a power source includes providing a power supply module. The power supply module includes a first circuit that has at least one first switch. The first circuit is configured to provide a welding current to an electrode of a welding system. The power supply module also has a second circuit that includes a load that is operatively connected to at least one second switch. The second circuit is configured to provide the welding current to the electrode through the load. The method also includes controlling the at least one first switch such that the welding current flows through the at least one first switch and to the electrode during a ramp up portion of a welding waveform and such that no current flows through the at least one first switch during a ramp down portion of the welding waveform. The method further includes controlling the at least one second switch such that the welding current flows through the load and to the electrode during the ramp down portion of the welding waveform. The ramp down portion takes the welding current to a predetermined value.

ARC WELDING DEVICE AND PROCESS USING A MIG/MAG TORCH COMBINED WITH A TIG TORCH

The invention relates to a device and a process for the arc welding of metal workpieces employing a MIG/MAG welding torch combined with a TIG welding torch so as to operate simultaneously and to obtain welded joints free of protruding defects. 113-. (canceled)14. A device for arc welding metal at least two workpieces , the device comprising a first welding torch , comprising a MIG or MAG welding torch , in combination with a second welding torch , comprising a TIG welding torch , in a way allowing the first welding torch and the second welding torch to operate simultaneously , wherein said first welding torch comprises a wire guide allowing a consumable wire to be guided in a given first direction and the second welding torch comprises a nonconsumable electrode pointed in a given second direction , said first and second directions being substantially coplanar and forming an angle (α) larger than 10° and smaller than 40° , and the nonconsumable electrode comprises a tip (D) located a distance (d) of between 20 and 44 mm from said first direction.15. The device of claim 14 , wherein the tip (D) is located a distance (d) of between 20 mm and 26 mm from the first direction.16. The device of claim 15 , wherein the tip (D) is located a distance (d) of between 36 mm and 44 mm from the first direction.17. The device of claim 14 , wherein the first and second directions form an angle (α) of between 15° and 25°.18. The device of claim 17 , wherein the first and second directions form an angle (α) of between 18° and 23°19. The device of claim 17 , wherein the first and second directions form an angle (α) of 20°.20. The device of claim 14 , wherein the electrode comprises a conical taper to said tip (D) claim 14 , said conical taper having an opening (β) of between 20° and 40°.21. A process for arc welding at least two metal workpieces comprising the steps of:a) gradually producing a weld bead on the at least two metal workpieces by means of a first welding torch, comprising a ...

WELDING TORCH AND ADAPTER KIT

According to the present invention, an adapter kit is provided in which a welding torch having a single nozzle structure is switched to a welding torch having a double nozzle structure. In an adapter kit (A) which is installed in a switchable manner in a welding torch (A) having a single nozzle structure, the present invention includes an attachment (A) which is mounted to the torch body () in a state where the torch nozzle (inner nozzle) (A) is inserted into the attachment after the gasket is removed and in which a flow channel that supplies a second shielding gas is provided, and an outer nozzle (A) that is mounted to the attachment (A) surrounding the periphery of the torch nozzle (A) and discharges a second shielding gas. 1. A welding torch comprising:a non-consumable electrode that generates an arc toward a material to be welded;a collet that supports the non-consumable electrode which is being inserted into the inside of the collet;a collet body that internally holds the collet in a state where the non-consumable electrode protrudes from the tip side of the collet body;a torch body that mounts the collet body and comprises a power supply portion that supplies electric power to the non-consumable electrode via the collet body and the collet, and a flow channel that supplies a first shielding gas;an inner nozzle that is mounted to the collet body surrounding the periphery of the non-consumable electrode and discharges the first shielding gas;an attachment that is mounted to the torch body in a state where the inner nozzle is inserted into the inside of the attachment, and comprises a flow channel that supplies a second shielding gas; andan outer nozzle that is mounted to the attachment surrounding the periphery of the inner nozzle and discharges the second shielding gas, wherein the attachment is mounted in a state of being interposed between the torch body and the inner nozzle.2. The welding torch according to claim 1 , wherein the inner nozzle is mounted to ...

FLUX-CORED WIRE AND GAS-SHIELDED ARC WELDING METHOD USING THE SAME

There is provided a flux-cored wire containing flux within a stainless steel or mild steel outer cover for use in stainless steel welding and gas-shielded arc welding using a shielding gas. The flux-cored wire contains, based on the total mass of the flux-cored wire, predetermined amounts of C, Si, Mn, P, S, Cr, Ti, and O. The remainder are Fe and incidental impurities. The shielding gas is pure Ar gas. 1. A flux-cored wire containing flux within a stainless steel or mild steel outer cover for use in stainless steel welding and gas-shielded arc welding using a shielding gas ,the flux-cored wire comprising: based on the total mass of the flux-cored wire,C: 0.10% by mass or less,Si: 1.50% by mass or less,Mn: 2.00% by mass or less,P: 0.050% by mass or less,S: 0.050% by mass or less,Cr: 15.0% to 25.0% by mass,Ti: 0.16% to 1.00% by mass, andO: 0.300% by mass or less,the remainder being Fe and incidental impurities,wherein the shielding gas is pure Ar gas.2. The flux-cored wire according to claim 1 , further comprising: based on the total mass of the flux-cored wire claim 1 , at least one ofAl: 1.00% by mass or less,N: 0.05% by mass or less,Nb: 0.10% to 1.00% by mass, andMo: 3.00% by mass or less.3. The flux-cored wire according to claim 1 , wherein the Cr and Ti contents areCr: 15.0% to 19.0% by mass, andTi: 0.16% to 0.50% by mass,the flux-cored wire further comprising:based on the total mass of the flux-cored wire, at least one ofAl: 1.00% by mass or less,N: 0.05% by mass or less,Nb: 0.10% to 1.00% by mass, andMo: 3.00% by mass or less.4. The flux-cored wire according to any one of to claim 1 , wherein the flux filling factor is in the range of 5% to 30% by mass based on the total mass of the flux-cored wire.5. The flux-cored wire according to or claim 1 , wherein the Nb content is Nb: 0.30% to 1.00% by mass.6. A gas-shielded arc welding method claim 1 , comprising: feeding the flux-cored wire according to into a shielding gas of pure Ar; and passing a pulsed electric ...

Welding systems having non-contact temperature measurement systems

Welding systems including welding torch assemblies are provided. The welding torch assembly may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. Shielding gas may be supplied to the welding torch for establishment of a gas shielding area around a weld pool. The welding torch assembly may also include a temperature sensing system having a non-contact temperature sensor coupled to the welding torch and adapted to sense a temperature of the workpiece at a location outside of the molten weld pool.

High Toughness Weld Metals With Superior Ductile Tearing Resistance

Weld metals and methods for welding ferritic steels are provided. The weld metals have high strength and high ductile tearing resistance and are suitable for use in strain based pipelines. The weld metal contains retained austenite and has a cellular microstructure with cell walls containing lath martensite and cell interiors containing degenerate upper bainite. The weld metals are comprised of between 0.02 and 0.12 wt % carbon, between 7.50 and 14.50 wt % nickel, not greater than about 1.00 wt % manganese, not greater than about 0.30 wt % silicon, not greater than about 150 ppm oxygen, not greater than about 100 ppm sulfur, not greater than about 75 ppm phosphorus, and the balance essentially iron. Other elements may be added to enhance the properties of the weld metal. The weld metals are applied using a power source with current waveform control which produces a smooth, controlled welding arc and weld pool in the absence of COor oxygen in the shielding gas. 2. The weld metal of wherein the weld metal further comprises between 0.5 and 10 vol. % retained austenite.3. The weld metal of wherein the weld metal has a tensile strength greater than 110 ksi and R-curve toughness higher than a curve represented by a delta value greater than 1.0.4. The weld metal of wherein 50 or more percent of the volume of the cell walls comprises lath martensite and 20 or more percent of the volume of the cell interiors comprises degenerate upper bainite.5. The weld metal of further comprising at least one of the following:not greater than about 0.30 wt % copper,not greater than about 0.04 wt % vanadium,not greater than about 0.30 wt % chromium,not greater than about 0.40 wt % molybdenum,not greater than about 0.04 wt % niobium,not greater than about 0.02 wt % titanium,not greater than about 0.02 wt % zirconium,not greater than about 20 ppm boron.6. The weld metal of wherein said weld metal is applied using a shielding gas comprising helium and argon.7. The weld metal of wherein said ...

Electrode diameter sensing consumables

The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.

Method for Weld Removal, Cutting, and Gouging With Vacuum Removal of Byproducts

A method for metalworking using an adjustable vacuum and support system for evacuating particulate matter, smoke, excess gas, and molten metal from a work area during welding and for providing adjustable support to a welding head. The vacuum system has a vacuum head and a vacuum nozzle. An adjustable mounting bracket has a first portion fixed to the vacuum head and a second portion securable to the welding head. The bracket arrangement establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. The support surface can be a base bevel surface at the tip of the nozzle, and an opposed suction bevel surface can have a nozzle aperture interposed therealong.

MIG- OR MAG-WELDING GUN

The invention relates to a MIG- or MAG-welding gun, comprising a hand-held grip for supporting, handling and aiming the welding gun during a welding process, the grip including a body member (). The grip further includes a grip member () pivotable relative to the body member () and lying alongside the body member over at least part of the same lengthwise extent as the body member. The grip member () has its free end pivotable to such a distance from the body member () that a hand grasping around the pivotable grip member () fits between the body member () and the pivotable grip member (), the body member () resting on top of the hand. When the pivotable grip member () has its free end is in its position pivoted into the engagement with the body member (), these two components constitute jointly a handle for the hand to grasp around. 1. A welding gun for MIG- or MAG-welding , comprising:a handle configured for supporting, handling and aiming the welding gun during a welding process, wherein the handle includes a body member and an elongate grip member that is pivotably coupled at a first end to the body member;wherein the elongate grip member defines a trough shape dimensioned to fit over the body member, and the trough shaped grip member is pivotable relative to the body member such that when the trough shaped grip member is pivoted alongside the body member the body member is at least partially accommodated within the trough, and the body member and trough shaped grip member in combination form a handle for using the welding gun; andthe trough shaped grip member is further configured so that when the trough shaped grip member is pivoted away from the body member, the trough shaped grip member forms an alternate handle for using the welding gun such that when a hand is grasping the pivotable trough shaped grip member, the body member rests on top of the hand;wherein the trough shaped grip member further includes an actuation trigger disposed adjacent the pivotable ...

WELDING TORCH

In a multi-electrode welding torch, electrodes () are configured into a shape that has an arc-shaped curved surface area (R) in at least a portion of a cross-section thereof that is orthogonal to the longitudinal direction thereof. Collets () are each provided with a groove portion () in which an electrode () is fitted, and whose inner wall surfaces () come into contact in a plurality of locations with the curved surface area (R) when viewed in the longitudinal direction of the electrode (). 1. A welding torch comprising: a plurality of electrodes that are insulated from the welding torch by an insulating material: and collets that are in contact with the electrodes and conduct power to the electrodes , whereinthe electrodes are shaped such that they have an arc-shaped curved surface area in at least a portion of a cross-sectional shape thereof that is orthogonal to the longitudinal direction thereof, andeach collet is provided with a groove portion in which the electrode is fitted, and whose inner wall surface is in contact with a plurality of locations of the curved surface area when looking from the longitudinal direction of the electrode.2. The welding torch according to claim 1 , wherein a notch portion is provided in a distal end of the collet that faces towards a distal end side of the electrode.3. The welding torch according to claim 2 , wherein a notch portion is provided in a portion of the distal end of the collet that does not come into contact with the electrode.4. The welding torch according to claim 1 , whereinthere is provided a collet supporting component that is disposed such that its position is fixed relative to the electrode, andthe collet is supported by the collet supporting component such that the collet is able to be tilted relative to the electrode.5. The welding torch according to claim 1 , wherein the collet is supported by the collet supporting component such that the collet can be displaced in a direction that is orthogonal to the ...

SYSTEM AND METHOD FOR HOT WIRE ARC STEERING

The invention described herein generally pertains to a system and method related to influencing a direction of an arc within a welding operation. Within a hot wire welding operation, an arc is generated between an electrode and a workpiece and a welding wire is energized while being supplied to a puddle formed by the electrode in order to deposit the liquefied welding wire onto the workpiece. A welder system and/or method is provided that controls a direction of the arc based on at least one of a polarity of the welding wire (via a power supply that energizes the welding wire), a location of the welding wire in proximity to the arc, a synchronization and/or de-synchronization of a polarity of the welding wire with the electrode, an activation and/or a de-activation of energizing of the welding wire, or a combination thereof. 1. A welder system , comprising:a welding torch that includes an electrode;a power source that creates an arc between the electrode and the workpiece;a wire feeder that is connected to a supply of welding wire to provide a welding wire to a puddle formed by the electrode, wherein the arc is a first polarity; anda welding wire power source that energizes the welding wire with at least one of the first polarity or a second polarity thereby influencing a direction of the arc; anda controller that influences a direction of the arc with at least one of a strength or a polarity of the energized welding wire via the welding wire power source, wherein a magnitude of the direction is controlled by a magnetic field of the welding wire and the magnetic field is controlled by a current in the welding wire via the welding wire power source.2. The welder system of claim 1 , wherein the arc is created from at least one of a gas metal arc welding (GMAW) in which the electrode is a positive polarity or a gas tungsten arc welding (GTAW) in which the electrode is a negative polarity.3. The welder system of claim 1 , further comprising at least one of following:the ...

HYBRID WELDING METHOD AND WELDING TORCH FOR HYBRID WELDING

A hybrid welding method capable of improving arc stability and improving the welding speed and the welding efficiency is provided. A hybrid welding method includes generating a TIG arc on a leading side in a welding direction and generating a MIG arc on a trailing side in the welding direction to weld a base metal, in which a TIG current is set to be higher than a MIG current so as to continuously generate arcs in a TIG electrode and a MIG electrode, and an absolute value of a distance from an intersection between a central axis of the TIG electrode and a surface of the base metal to an intersection between a central axis of the MIG electrode and the surface of the base metal is 20 mm or less.

Method for tungsten inert gas welding

The invention relates to a method and a welding torch for gas tungsten arc welding, wherein an electric arc burns between a non-consumable electrode ( 110 ) and a workpiece ( 151 ). The interior of the electrode ( 110 ) has a cavity ( 200 ) through which an electrically conducting filler ( 210 ) is fed in the direction ( 230 a ) of the workpiece ( 151 ), said filler ( 210 ) being energized.

Orbital welder with torch adjustment assembly

A welding system for applying a weld to a workpiece, the welding system including a torch head frame, a welding torch supported on the frame, the welding torch including an electrode; a fillet adjustment assembly including a mounting block, wherein the torch head frame is pivotally attached to the mounting block and pivotable about a fillet axis, the fillet adjustment assembly including a fillet locking assembly adapted to hold the torch head at a selected fillet angle relative to the mounting block. The welding system also includes a lead lag axis about which the torch head is adjusted.

Turbine blade, turbine, and method for producing turbine blade

A turbine blade disposed along a radial direction of a turbine includes: an airfoil portion positioned in a fluid flow passage of the turbine; and a shroud portion positioned on an inner side or an outer side of the airfoil portion in the radial direction, and having an opening with which an end portion of the airfoil portion is to be engaged. A clearance is formed between a wall surface forming the opening of the shroud portion and an outer peripheral surface of the end portion of the airfoil portion. The wall surface of the shroud portion and the outer peripheral surface of the airfoil portion are joined to each other. At least one of the shroud portion or the airfoil portion has a cooling hole formed thereon, the cooling hole having an opening into the clearance and being configured to supply the clearance with a cooling fluid.

PRESSURE TANK, GAS INSULATED SWITCHGEAR USING SAME, AND PRESSURE TANK MANUFACTURING METHOD

To obtain a pressure tank that achieves a high manufacturing efficiency and does not hamper storage of an open/close portion such as a vacuum valve in a pressure tank. A pressure tank of the present invention includes: a tank body having at least one penetrating slit-shaped mortise and having a space formed inside the tank body; a reinforcing member having a tenon portion formed at an end thereof so as to be directed in one direction, and having an electric field relaxation portion on a side opposite to the tenon portion, the reinforcing member being attached to an inner wall surface of the tank body with the tenon portion inserted into the mortise; and a welding portion sealing and fixing the mortise and the tenon portion with no gap therebetween, the welding portion being formed by melting an end of the tenon portion from outside of the tank body. 1. A pressure tank comprising:a tank body having a plurality of penetrating mortises formed in a row, and having a space formed inside the tank body; a plurality of tenon portions formed, in a row, at an end thereof so as to be directed in one direction,', 'an electric field relaxation portion formed on a side opposite to the tenon portions, and', 'a plurality of contact portions formed at least between the plurality of tenon portions and being in contact with an inner wall surface of the tank body,', 'the reinforcing member being fitted such that each tenon portion is inserted into the corresponding mortise and the plurality of contact portions are in contact with the inner wall surface of the tank body while an end of the tenon portion protrudes from an outer wall surface of the tank body; and, 'a reinforcing member having'}a welding portion sealing and fixing each mortise and a corresponding tenon portion with no gap therebetween, the welding portion being formed by melting, in the mortise, the tenon portion from outside of the tank body.2. The pressure tank according to claim 1 , whereina sectional shape of the ...

Abrasion Resistant Material Tandem Welding

A system of coating a component or part of a vehicle, device, or an apparatus with an abrasive resistant material (ARM) in order to increase the component or part's life cycle. A welding system can be used to deposit ARM between a lead electrode and a trail electrode and also deposit ARM behind the trail electrode. The welding system can also be used to deposit ARM that includes a lead electrode depositing the steel material and a trailing electrode that delivers an alloying material. 1. A system for coating a component , comprising:a first electrode configured to receive a first consumable material from a first feeder;a first contact positioned at an end of the first electrode;a first power supply that provides power to the first contact;a second electrode configured to receive a second consumable material from a second feeder;a second contact positioned at an end of the second electrode;a second power supply that provides power to the second contact;a gas supply of a shielding gas that is coupled to the first and second contacts;a controller configured to control the first power supply, the second power supply, the first feeder and the second feeder, wherein the first contact creates an arc that forms a weld pool on a work piece; andan abrasive resistant material source that deposits a first amount of an abrasive resistant material between the first and second contacts and a second amount of the abrasive resistant material behind the second contact, wherein the first and second amounts of the abrasive resistant material are deposited into the weld pool.2. The system of claim 1 , wherein the first consumable material is mild carbon steel.3. The system of claim 1 , wherein the abrasive resistant material is tungsten carbide claim 1 , silicon carbide claim 1 , titanium carbide claim 1 , boron nitride or boron carbide.4. The system of claim 1 , wherein the first and second contacts create a gas shielding that receives the first and second amounts of abrasive resistant ...

WELDING PROCESS WIRE FEEDER ADAPTER

A welding system may include a welding power source that provides power for both a gas metal arc welding (GMAW) process and a gas tungsten arc welding (GTAW) process. Further, the welding system may include a wire feeder coupled to the welding power source for providing wire, gas flow, and electrical current flow for the GMAW process. Additionally, the welding system may include an adapter that couples to the wire feeder to provide the electrical current flow and the gas flow for the GTAW process.

ELECTRODE DIAMETER SENSING CONSUMABLES

Electrode diameter sensing consumables are disclosed. An example shielded metal arc welding (SMAW) torch comprises: a handle; a clamp coupled to the handle configured to open and close to hold a SMAW electrode, the clamp comprising a pivot configured to rotate based on a degree of openness of the clamp; and a potentiometer coupled to the pivot such that an output of the potentiometer is representative of a degree of rotation of the pivot 1. A shielded metal arc welding (SMAW) electrode holder , comprising:a handle;a clamp coupled to the handle configured to open and close to hold a SMAW electrode, the clamp comprising a pivot configured to rotate based on a degree of openness of the clamp; anda potentiometer coupled to the pivot such that an output of the potentiometer is representative of a degree of rotation of the pivot.2. The SMAW electrode holder of claim 1 , further comprising a spring configured to exert a force to provide a closing tendency to the clamp.3. The SMAW electrode holder of claim 1 , wherein the potentiometer is configured to claim 1 , when a first signal is applied to the potentiometer claim 1 , output a second signal representative of a size of an electrode held by the clamp.4. A welding system claim 1 , comprising:a material sensing and control system configured to receive an output from a potentiometer of a shielded metal arc welding (SMAW) electrode holder and to determine an electrode size based on the output; and determine, based on the electrode size, at least one of an arc starting parameter or a welding parameter; and', 'control the welding system to implement the determined arc starting parameter or the welding parameter., 'a controller configured to5. The welding system of claim 4 , wherein the material sensing and control system is configured to receive the output from the potentiometer continuously.6. The welding system of claim 4 , wherein the material sensing and control system is configured to receive the output from the ...

TOUCH RETRACT WELDING TORCH

This invention relates to an apparatus for use in welding, in particular in Tungsten Inert Gas (TIG) welding. The invention provides a touch retract welding torch () comprising: an electrode (); a nozzle () surrounding the electrode (); a mechanical retraction mechanism () comprising a gripper () for clamping the electrode and arranged in operation to engage the gripper and retract the electrode () away from a weld site by a predetermined distance; activating means () arranged in operation to trigger said retraction mechanism while providing the basis by which an arc maybe drawn from an initial contact point and maintained consistently over a significant number of operational cycles. 1. A touch retract arc welding torch comprising:an electrode;a nozzle, the nozzle surrounding the electrode and the nozzle having an end for making contact with a weld site of a work piece;a mechanical retraction mechanism configured to withdraw an end of the electrode away from said weld site by a predetermined distance to draw an electric arc between said withdrawn electrode end and said weld site in order to create the weld, the mechanical retraction mechanism comprising gripper arms configured to engage and clamp the electrode when the end of the electrode is withdrawn away from said weld site and to disengage and release the electrode, in which, when the gripper arms are not engaged the electrode is mobile and is slidable between a first configuration in which the end of the electrode protrudes from the end of the nozzle and a second configuration in which the end of the electrode and the end of the nozzle are co-planar such that, in use, the end of the electrode and the end of the nozzle concurrently touch said weld site; andan activating means arranged in operation to trigger the retraction mechanism;wherein the retraction mechanism, when triggered by the activating means, is configured, in use, first to engage and clamp said mobile electrode in the second configuration and then ...

WIRE SHUTTLE FOR USE IN WELDING APPLICATIONS

Apparatuses, systems, and/or methods for welding systems that provide independent control of a contact tip of a welding torch are disclosed. The welding system can include, for example, a welding torch that includes, for example, a contact tip and a pivot in which the contact tip is coupled to the pivot and is configured to provide wire that is fed through the welding torch during a welding operation. The contact tip and the pivot are configured to independently move the contact tip of the welding torch around the pivot during the welding operation. 1. A torch , comprising:a pivot support member that receives a contact tip,wherein the pivot support member is configured to independently move the contact tip around a pivot point during a welding operation.2. The torch according to claim 1 , wherein the torch is configured to provide wire via the contact tip.3. The torch according to claim 1 , wherein the torch is moved in a first direction during the welding operation claim 1 , and wherein the pivot support member is configured to automatically move the contact tip to form a weave welding pattern.4. The torch according to claim 1 , wherein the torch is moved in a first direction during the welding operation claim 1 , and wherein the pivot support member is configured to automatically move the contact tip to form an inline weave welding pattern5. The torch according to claim 1 , wherein the torch is moved in a first direction during the welding operation claim 1 , and wherein the pivot support member is configured to automatically move the contact tip to form a zig zag welding pattern.6. The torch according to claim 1 , wherein the torch includes a gas diffuser that is coupled to the pivot support member claim 1 , and wherein the gas diffuser and the pivot support member are configured to move the contact tip independently of the welding torch during the welding operation.7. The torch according to claim 1 , wherein the torch is configured to be manually held by an ...

SYSTEMS AND METHODS FOR ADAPTIVE CONTROL OF WIRE PREHEATING

A welding-type system includes a power supply configured to control preheating of an electrode wire. A controller is configured to receive a plurality of power values corresponding to a power output of the power supply and calculate an arc power value corresponding to an arc condition at the preheated electrode wire based on a rate of change of the plurality of power values. A target power output value is determined based on the calculated arc power value, and the power output is adjusted based on the determined target power value. 1. A welding-type system , comprising:a power supply configured to preheat an electrode wire; and receive a plurality of power values corresponding to a power output of the power supply;', 'calculate an arc power value corresponding to an arc condition at the preheated electrode wire based on a rate of change of the plurality of power values;', 'determine a target power output value based on the calculated arc power value; and', 'adjust the power output based on the determined target power value., 'a controller configured to2. The system as defined in claim 1 , wherein the power output is regulated between a high threshold value and a low threshold value about the target power output value.3. The system as defined in claim 2 , wherein the controller is configured to:compare a first power value of the plurality of power values to the high threshold power value and the low threshold power value; andadjust the power output based on the comparison.4. The system as defined in claim 2 , wherein the controller is configured to:raise the power output if the first power output is below the low threshold power value; andto lower the power output if the first power output is above the high threshold power value.5. The system as defined in claim 2 , further comprising a wire feeder claim 2 , the controller further configured to adjust a wire feed speed based on a comparison of the first power value to the target power output value and the high and ...

WELDING TORCH, WELDING APPARATUS AND METHOD OF WELDING USING HOLLOW ELECTRODE AND FILLER MATERIAL

A welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, a process gas nozzle that coaxially surrounds at least the guidance means, and a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current. A hollow electrode is provided that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the wire-like welding filler material in potential free manner. The welding torch may be used as part of a welding apparatus for a variety of welding methods. 1. A welding torch comprising guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch having at least one process gas nozzle that coaxially surrounds at least the guidance means and having a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current , characterised by a hollow electrode that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector , wherein the guidance means are designed to advance the welding filler material in potential free manner with no connection to the welding current connector.2. The welding torch according to claim 1 , further comprising a coil and/or magnet arrangement that is configured to supply an electrical and/or magnetic field applied around axis and designed to cause a welding arc originating from the hollow electrode to rotate about the axis.3. The welding torch according to claim 1 , in which at least one or more sections of the hollow ...

GAS TUNGSTEN ARC WELDING TRAINING SYSTEMS

Systems and methods for gas tungsten arc welding (GTAW) training systems are described. In some examples, a GTAW training system includes a GTAW torch and filler rod attachment having one or more markers to facilitate position and/or orientation detection and/or tracking of the GTAW torch and/or filler rod. One or more sensors of the GTAW training system may be configured to capture data relating to the markers of the GTAW torch and/or filler rod attachment. A training controller of the GTAW training system may use the markers and/or sensor data to track and/or determine positions, orientations, and/or movement of the GTAW torch and/or filler rod. The positions, orientations, and/or movement may be analyzed in conjunction with welding parameter data to provide training feedback. 1. A gas tungsten arc welding (GTAW) training system , comprising:a GTAW torch comprising a first set of visual markers;an attachment configured to be attached to a filler rod, the attachment comprising a second set of visual markers;one or more sensors configured to detect the first set of visual markers and second set of visual markers; and determine a first position of the GTAW welding torch or a first orientation of the GTAW welding torch based on detection of the first set of visual markers by the one or more sensors, and', 'determine a second position of the filler rod or a second orientation of the filler rod based on detection of the second set of visual markers by the one or more sensors., 'control circuitry in communication with the one or more sensors, the control circuitry configured to2. The weld training system of claim 1 , wherein the control circuitry is further configured to determine one or more torch parameters based on the first position or the first orientation of the GTAW welding torch claim 1 , and determine one or more filler rod parameters based on the second position or second orientation of the filler rod.3. The weld training system of claim 2 , wherein the one or ...

TIG Glide

The purpose of the TIG Glide is to stabilize the welder's torch hand/arm on the we ding surface with minimal friction to achieve the desired distance between the welding surface and the welding torch. The TIG Glide has minimal contacting surface area, allowing less heat transfer from part to hand/arm. Less heat transfer allows the welder to wear thin gloves versus thick gloves giving the welder more hand/arm maneuverability on bigger parts. This is fulfilled by the device's low friction embodiments, including/not limited to, caster wheels, ball transfers, sliding materials, etc., which are attached with securing devices to the TIC Glide base. The TIG Glide is then secured to the welder with the attachment apparatuses, wherein the welder attaches to, wears, or straps on his arm/hand/appendage a sliding device which glides along the welded piece or support and thus helps to stabilize hand/arm motion, lessen heat transfer, and improve precision. 1. The TIG Glide is a welding tool that consists of a platform with a securing device or devices resting on embodiments of low friction which include, but are not limited to; caster wheels, ball casters, sliding materials, or anything of that nature, with the purpose of stabilizing the welders torch hand as well as minimizing the transfer of heat to the welders hand as it easily glides along the work piece to aid the process of welding with a hand/arm stabilizer and relaxer, wherein the welder straps on, attaches to, wears on, or rests his arm/hand/appendage (on a) a sliding device which glides along the welded piece or support and thus helps to stabilize hand motion and improve precision. The present invention is directed to a welder.CN 203197439 U, Cutting stabilizer for a handheld cutting torch.http://weldmongerstore.com/products/tig-finger, TIG finger.http://jtillman.com/products/gloves/tig/, Tillman TIG gloves.The problems that are solved by the TIG Glide include, but are not limited to; heat transference, glove snag, ...

WELDED STRUCTURE, LASER WELDING METHOD, AND LASER WELDING DEVICE

A nozzle as a welded structure includes a nozzle body, and a buckling prevention fin joined to the nozzle body by laser welding, in which an end of the buckling prevention fin before laser welding is disposed to face the nozzle body, an installed state of the nozzle body and the buckling prevention fin includes an installed state in which a gap is formed between the nozzle body and the buckling prevention fin, and the buckling prevention fin has a beveled portion which is beveled at the end facing the nozzle body. 1. A welded structure comprising:a workpiece; anda fin member joined to the workpiece by laser welding,wherein an end of the fin member before laser welding is disposed to face the workpiece, and an installed state of the workpiece and the fin member includes an installed state in which a gap is formed between the workpiece and the fin member, andthe fin member has a beveled portion which is beveled at the end facing the workpiece.2. The welded structure according to claim 1 ,wherein the fin member has a front side, a back side formed on an opposite side of the front side, an end surface of the end facing the workpiece, and a beveled surface of the beveled portion beveled at the end portion,a space area formed between the workpiece and the fin member is an area, in a cross-section perpendicular to the traveling direction of the laser welding, that is surrounded by a welding target surface of the workpiece facing the fin member, the end surface facing the welding target surface of the workpiece, the beveled surface of the beveled portion, a front side virtual surface extending to the workpiece side along the front side of the fin member, and a back side virtual surface extending to the workpiece side along the back side of the fin member, andwhen a maximum space area in which the space area becomes the maximum is set as Emax, and a minimum space area in which the space area becomes the minimum is set as Emin, the beveled portion is beveled to satisfy the ...

WIRE AIMING GUIDE AND WELDING DEVICE

According to the present invention, there is provided a wire aiming guide capable of further improving usability. The present invention provides a wire aiming guide () configured to guide a welding wire (W) and feed the welding wire from a tip side thereof while being attached to a welding torch including: a first guide member () and a second guide member () configured to guide the welding wire (W): and a connecting portion () rotatably connecting the first guide member () and the second guide member (), wherein a direction of the welding wire (W) fed from a tip end side of the first guide member () is adjusted by bending the first guide member () with respect to the second guide member (). 1. A wire aiming guide configured to guide a welding wire and feed the welding wire from a tip side thereof while being attached to a welding torch comprising:a first guide member and a second guide member configured to guide the welding wire: anda connecting portion rotatably connecting the first guide member and the second guide member,wherein a direction of the welding wire fed from a tip end side of the first guide member is adjusted by bending the first guide member with respect to the second guide member.2. The wire aiming guide according to claim 1 , wherein a nozzle portion configured to penetrate the welding wire is provided on the tip side of the first guide member claim 1 , and the welding wire is fed out from the tip of the nozzle portion.3. The wire aiming guide according to claim 1 , wherein a first guide portion configured to guide the welding wire toward the nozzle portion side is provided with the first guide member.4. The wire aiming guide according to claim 3 , wherein the first guide portion is positioned on both side of the welding wire so as to sandwich the welding wire claim 3 , and the welding wire is guided toward the nozzle portion side while being sandwiched by the first guide portion.5. The wire aiming guide according to claim 1 , wherein the wire ...

Locator-equipped clamp jig, stator manufacturing device, and method for manufacturing stator

A locator-equipped clamp jig capable of suppressing interference between base sections of segments when clamped by the clamp jig, a stator manufacturing device, and a method for manufacturing a stator. The locator-equipped clamp jig has a locator that is provided to part of a main clamp body on a stator core side and has a plurality of protrusions arranged on an upper surface of an electrical conductor that is adjacent, in the radial direction of the stator core, to an electrical conductor being clamped by the main clamp body, the width of the protrusions in the radial direction of the stator core being at least the width of one of the electrical conductors.

System and Method for Weld Removal, Cutting, and Gouging With Vacuum Removal of Byproducts

A system and method for metalworking using a vacuum to evacuate particulate matter, smoke, excess gas, and molten metal from a work area. The vacuum system has a vacuum head and a vacuum nozzle. A bracket establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. A flow of liquid can be applied to the work area defined by the vacuum nozzle and the welding head to provide cooling and to prevent deleterious overheating and particulate matter accumulation. A V-shaped canal, potentially with a depression in each face thereof, can communicate across a support surface of the vacuum nozzle. 1. A metalworking system with the application of a vacuum during operation of a welding system to evacuate particulate matter , smoke , excess gasses , and molten metal from a work area during weld removal , cutting , and gouging , the metalworking system comprising:a welding system with a welding head, an electrode holder retained by the welding head, an electrode retained by the electrode holder for creating a welding arc, and a welding power supply connected to the welding head;a vacuum system with a vacuum head;a mounting bracket for coupling the welding head to the vacuum head wherein the mounting bracket is adjustable to permit an adjustment of a disposition of the welding head in relation to the vacuum head; anda liquid dispensing system retained to dispense liquid into the work area.2. The metalworking system of wherein the vacuum system further comprises a vacuum nozzle retained by the vacuum head wherein the vacuum nozzle has a nozzle aperture and a support surface for being rested on a surface of a workpiece during weld removal claim 1 , cutting claim 1 , and gouging whereby the vacuum nozzle can provide support to the vacuum head and the welding head and whereby a height and supported position of the electrode ...

WELDING TORCH AND MOUNTING JIG THEREOF

The present invention relates to a welding torch including a mounting jig for mounting a wire-aiming guide which feeds a welding wire toward a molten pool of a work piece, wherein the mounting jig has a male screw that can be screwed into a female screw provided in a torch body, and is detachably mounted to the torch body; and a mounting jig. The present invention provides the welding torch with which a wire-aiming guide can be stably mounted and which can mount a highly versatile wire-aiming guide; and the mounting jig. 1. A welding torch comprising:a non-consumable electrode which generates an arc between a work piece and the non-consumable electrode;a collet which supports the non-consumable electrode in a state where the non-consumable electrode is inserted;a collet body on the inside of which the collet is held in a state of projecting the non-consumable electrode from a front end of the collet body;a torch body on which the collet body is mounted, and which comprises an electric supplying part for supplying electric power to the non-consumable electrode through the collet body and the collet and a passage for supplying a shield gas;a torch nozzle which is mounted on the collet body in a state of surrounding the non-consumable electrode and emits the shield gas toward a molten pool of the work piece which is generated by the arc;a torch cap which has a male screw which can be screwed into a female screw of the torch body which is formed on the side opposite to the side where the collet body is mounted and is detachably mounted on the torch body;a wire-aiming guide which feeds a welding wire toward the molten pool of the work piece; anda mounting jig with which the wire-aiming guide is mounted;wherein the mounting jig comprises a male screw which can be screwed into the female screw of the torch body, and is detachably mounted on the torch body.2. The welding torch according to claim 1 , wherein the mounting jig comprises a female screw into which the male screw ...

Semi-automatic welding system, conversion adapter kit, and welding torch

According to the present invention, a non-consumable electrode type semi-automatic welding system which can conduct welding with high weld deposit and high speed is provided. A welding torch ( 1 ), in which a non-consumable electrode ( 1 ) generating an arc between the non-consumable electrode and an object to be welded and a torch nozzle ( 5 ) ejecting a shield gas toward a welding pool of the object to be welded generated by the arc are provided; a wire feeder ( 502 ) which delivers a welding wire ( 10 ) toward the welding pool of the object to be welded from a tip end of a feeding head, the feeding head being mounted on the welding torch ( 1 ) via an attaching jig ( 14 ); and a welding power source ( 501 ) which supplies electric power and shield gas to the welding torch ( 1 ); are provided and one or more among the welding torch ( 1 ), the wire feeder ( 502 ), and the welding power source ( 501 ) are constituted by applying at least one part of a welding torch, wire feeder, and welding power source provided in a consumable electrode type semi-automatic welding system.

BRAZE BONDED NAIL HEAD LEAD

A braze bonded nail head includes a nail head lead having a first end with first and second sides and a braze alloy preform coupled to the first side of the first end of the nail head lead The braze bonded nail head further includes a weld joint centrally located on the braze alloy preform and extending through the braze alloy preform to the first end of the nail head lead. The weld joint is formed through micro-tig-welding, in alternative embodiments of the invention, one of the nail head lead and the braze alloy preform may include at least one protrusion extending therefrom, while the other of the nail head lead and the braze alloy preforms may include at least one interfit element configured to interfit with the at least one protrusion. 1. A braze bonded nail head comprising:a nail head lead having a first end;a braze alloy preform coupled to the first end of the nail head lead; andwherein the nail head lead and the braze alloy preform are permanently coupled together by way of at least one of a weld joint and an interfit joint to form a single use part for assembly brazing.2. The braze bonded nail head lead of wherein the weld joint is formed through micro-tig-welding.3. The braze bonded nail head lead of wherein the interfit joint is formed by at least one protrusion of one of the nail head lead and the braze alloy preform interfitting with at least one interfit element of the other of the nail head lead and the braze alloy preform.4. The braze bonded nail head of wherein the at least one protrusion comprises a center post extending from a first side of the first end of the nail head lead; andwherein the at least one interfit element comprises an orifice formed in the center of the braze alloy preform, the orifice configured to interfit with the center post.5. The braze bonded nail head of wherein a diameter of the first end of the nail head lead is between 0.030 and 0.150 inches.6. The braze bonded nail head of wherein a diameter of the braze alloy preform is ...

MODIFIED FLUX SYSTEM IN CORED ELECTRODE

A cored electrode having reduced moisture pick-up properties and which forms a weld bead with low diffusible hydrogen in a gas shielded electric arc welding process. The cored electrode includes a metal sheath and a fill composition. The fill composition includes titanium dioxide, slag forming agent and a sodium-silica-titanate compound. 1. A method of forming a weld bead having a low diffusible hydrogen content by use of an electrode having reduced moisture pick-up comprising:providing a cored electrode that includes a metal sheath and a fill composition, said fill composition including titanium dioxide, a slag forming agent and a moisture resistant compound, said moisture resistant compound comprising a sodium-silico-titanate compound, wherein said sodium-silico-titanate compound is formed of a combination of a titanium compound, a potassium compound, a sodium compound and colloidal silica, said moisture resistant compound having an average particle size of 30-250 mesh, said moisture resistant compound including over 50 weight percent titanium compound, said moisture resistant compound having a weight ratio of sedum compound to potassium compound of about 1.1-5:1, said moisture resistant compound including at least about 1 weight percent colloidal silica, said colloidal silica having an average particle size of less than about 40 nm; and,at least partially melting said cored electrode by an electric current to cause said melted portion of said cored electrode to be deposited on a workpiece.2. The method as defined in claim 1 , including the step ofdirecting a shielding gas to said workpiece to at least partially shield said melted portion of said cored electrode being deposited on a workpiece.3. The method as defined in claim 2 , whereinsaid shielding gas includes argon, carbon dioxide or mixtures thereof.4. The method as defined in claim 1 , whereinsaid titanium dioxide minus any titanium dioxide in said moisture resistant compound is about 2-40 weight percent of ...

Tig welding torch equipped with narrow nozzle for spot welding, and electrode nozzle used in same

The present invention enables even a beginner to acquire the technique easily and perform suitable spot welding, and achieves improved workability, improved welding quality, improved productivity, and the like. The present invention includes a torch body 2 for passing a shielding gas, a tungsten electrode rod 5 inserted into the torch body 2 and connected to a cathode, a constricted nozzle 6 for supporting a distal end portion of the tungsten electrode rod 5 concentrically, defining a gas passage 6 e between the tungsten electrode rod 5 and the constricted nozzle 6 for flowing a shielding gas G, and discharging the shielding gas G from the constricted nozzle 6 at a higher speed than the shielding gas G discharged from the distal end of the torch body 2 , and a cylindrical electrode nozzle 7 having conductivity arranged concentrically with the tungsten electrode rod 5 on the outer circumference of the constricted nozzle 6 , connected to the anode via a ground cable 18 , and configured to have a tapered shape at a distal end portion, wherein the tapered distal end portion is located further outside than the distal end portion of the tungsten electrode rod 5 , gas vent ports 7 c and 7 d of the shielding gas G are provided on the electrode nozzle 7.

Welding torch with upper and lower shielding gas flow and welding method using welding torch for horizontal welding

A welding torch ( 1 ) includes a cylindrical nozzle ( 2 ) in which shielding gas is flown from an opening ( 3 b ), and an electrode ( 4 ) that is a bar-shaped body projecting from the opening ( 3 b ). The shielding gas includes upper shielding gas flowing in an upper region ( 3 u ) on an upper side of a central axis (C 2 ) of the electrode ( 4 ), and lower shielding gas flowing in a lower region ( 3 d ) on a lower side of the central axis (C 2 ) of the electrode ( 4 ). Atmospheric pressure of the lower shielding gas is higher than atmospheric pressure of the upper shielding gas. A method of horizontal welding with this kind of welding torch is also defined.

METHOD FOR WELDING A CASE HARDENED COMPONENT

A method for producing a welded part from two components, where at least one of the components has a hardened surface. The method can include case hardening the surface of one of the components using a salt bath nitriding process and then welding the case hardened first component to the second component by gas metal arc welding (GMAW). 1. A method for producing a welded part comprising a first component welded to a second component , the method comprising:case hardening the surface of the first component by a salt bath nitriding process; andwelding the case hardened first component to the second component by a gas metal arc welding process using an aluminum-bronze wire electrode;wherein the weld between the first and second components is substantially free of porosity and the surface hardness of the first component in the vicinity of the weld is substantially undiminished.2. The method of claim 1 , wherein the gas metal arc welding process comprises using a shielding gas comprising argon.3. The method of claim 1 , wherein the first component comprises steel.4. The method of claim 3 , wherein the second component comprises steel.5. The method of claim 1 , and further comprising at least one of grinding and stamping the first component prior to case hardening the surface of the first component.6. The method of claim 1 , wherein the first component comprises a spin tube and the second component comprises a gear case cover.7. An appliance comprising:a case hardened first component welded to a second component;wherein the first component is case hardened by a salt bath nitriding process prior to welding the case hardened first component to the second component by a gas metal arc welding process using an aluminum-bronze wire electrode; andwherein the weld between the first and second components is substantially free of porosity and the surface hardness of the first component in the vicinity of the weld is substantially undiminished.8. The appliance of claim 7 , wherein ...

Welding Torch

Disclosed is a welding torch. The welding torch comprising a torch head, a cup, a handle and a connector removably. Further, the torch head comprising a first tube, a second tube and an extension member. Further, the first tube and the second tube joined together in parallel along the length of the first tube and the second tube. Further, the extension member coupled to a rear end of the second tube. Further, the cup removably coupled to a front end of the first tube. Further, the handle removably coupled to the rear end of the extension member. Further, the connector removably enclosed within the handle. Further, the connector connects to a gas supply hose, wherein the welding torch is generally parallel to the gas supply hose. 1. A welding torch comprising:a torch head comprising a first tube, a second tube and an extension member, wherein the first tube and the second tube joined together in parallel along the length of the first tube and the second tube, wherein the extension member coupled to a rear end of the second tube;a cup removably coupled to a front end of the first tube; anda handle removably coupled to the rear end of the extension member, anda connector removably enclosed within the handle, wherein the connector connects to a gas supply hose, wherein the welding torch is generally parallel to the gas supply hose.2. The welding torch of comprising a flow path for a gas from the gas supply hose to the cup claim 1 , wherein the flow path comprises at least one of the gas supply hose claim 1 , the handle claim 1 , the second tube claim 1 , the first tube and the cup.3. The welding torch of wherein each of the first tube and the second tube comprises a hole on the side wall to allow the gas to travel from the gas supply hose to the cup.4. The welding torch of wherein at least one of the first tube and second tube is generally cylindrical shaped.5. The welding torch of wherein the cup is tubular shaped.6. The welding torch of wherein the cup tapers from the ...

METHOD FOR MANUFACTURING AN EFFECTIVE ELECTRIC CONTACT POINT AT THE END OF AN ELECTRICAL LINE

Method for manufacturing an electrically effective point of contact on the end of an electrical conductor with a plurality of stranded wires composed of aluminum or an aluminum alloy. At the end of the conductor arranged with the vertical course, initially a holder is placed surrounding the conductor so that the front side of the conductor is exposed and the point is accessible from the top. After the point of the conductor is in an axial direction, on the front surface a heat source of a temperature from 2000° C. and higher heats the surface. The material of the individual wires surrounding oxide layer are melted or steamed away until all the wires of the conductor including the same surrounding oxide layer form a one-piece combined aluminum composed contact part. After that the contact part together with the end of the conductor is cooled. 1. Method for manufacturing an electrically effective point of contact on the end of an electrical conductor , the electrical conductor having a plurality of stranded wires composed of aluminum or an aluminum alloy , with the end of the conductor arranged with the vertical course , said method comprising:initially a holder is placed surrounding the conductor so that the front side of the conductor is exposed and the point is accessible from the top, by which after the point of the conductor is in an axial direction, on the front surface a heat source of a temperature from 2000° C. and higher heats the surface, by which the material of the individual wires with surrounding oxide layer are melted or steamed away until all the wires of the conductor including the same surrounding oxide layer are forming a one-piece combined aluminum composed contact part in which after that the contact part together with the end of the conductor is cooled.2. Method according to claim 1 , wherein for the melting of the conductor a plasma light generator claim 1 , or a laser light beam claim 1 , or an electron beam claim 1 , or a Wolfram-inert-gas ...

WELDING TORCH AND CORRESPONDING MANUFACTURING METHOD

A welding torch includes a head () having a body () bearing an electrode (); an electric power source (); and a filler metal wire () and a wire guide () guiding the filler metal wire () to the electrode (). The body () is obtained by additive manufacturing from an electrically conductive metal, and the electrode () is electrically connected to the electric power source () by the metal constituting the body (). The wire guide () includes an insulating sheath () inside which the filler metal wire () moves, and the filler metal wire () is electrically insulated from the potential of the body () by the insulating sheath (). 114-. (canceled)15. A welding torch comprising:a head having a body bearing an electrode;a power supply having an electric power source; anda filler metal wire and a wire guide guiding the filler metal wire to the electrode,the body being obtained by additive manufacturing from an electrically conductive metal, the electrode being electrically connected to the electric power source by the electrically conductive metal constituting the body, the wire guide comprising an insulating sheath inside which the filler metal wire moves, the filler metal wire being electrically insulated from a potential of the body by the insulating sheath.16. The welding torch according to claim 15 , further comprising a carrier integral with the head claim 15 , the carrier being obtained by additive manufacturing from an electrically conductive metal claim 15 , the electrode being electrically connected to the electric power source through the metal constituting the carrier claim 15 , the filler metal wire being electrically insulated from the potential of the carrier by the insulating sheath.17. The welding torch according to claim 16 , further comprising a base obtained by additive manufacturing from an electrically conductive metal claim 16 , the electrode being electrically connected to the electric power source through the electrically conductive metal constituting the ...

WELDING METHOD AND DEVICE

A TIG welding device () includes a welding robot (), robot control device (), welding torch (), welding control device (), gas feeder (), and a height detection device (). The welding torch () is set at a reference position, and the height detection device () detects the respective heights of two tip parts (). The robot control device () drives the welding robot () such that a torch electrode () of the welding torch () abuts on central part of the higher tip part (). When the torch electrode () is moved toward the reference position while power is supplied to the torch electrode (), and inert gas flows in the periphery of the torch electrode (), arc (AC) is generated in a gap between the tip parts () and the torch electrode (). The overall two tip parts () are melted and welded by this arc (AC). 1. A welding method for arc welding a first coil and a second coil by use of an energized electrode , the welding method comprising:a first step of detecting one of the first coil and the second coil, the one laving a shorter distance from a tip surface to be welded to a tip of the electrode;a second step of abutting the tip of the electrode on the tip surface of the one detected in the first step; anda third step of generating an arc by separating the tip of the energized electrode from the tip surface of the one detected in the first step, after the second step, and arc welding the first coil and the second coil.2. The welding method according to claim 1 , whereinin the third step, the tip of the energized electrode is displaced so as to be separated from the tip surface of the one detected in the first step, and approach the other to generate the arc.3. The welding method according to claim 1 , whereinin the second step, the tip of the electrode is made to abut on a central part of the tip surface of the one detected in the first step.4. The welding method according to claim 2 , whereinin the second step, the tip of the electrode is made to abut on a central part of the ...

NON-FORGED HAMMERMILL HAMMER

Improved free-swinging hammermill hammer configurations are disclosed and described for comminution of materials such as grain and refuse. The hammer configurations of the present disclosure are adaptable to most hammer mill or grinders having free-swinging systems. The configurations as disclosed and claimed are non-forged and incorporate a saddle or hammer mouth. The merging of a hammer and saddle improves strength to reduce or maintain the weight of the hammer while increasing the amount of force delivered to the material to be comminuted. The improved configurations incorporate comminution edges having increased hardness for longer operational run times. The improved configurations improve installing, removing, and cleaning hammer components within the hammermill. The improved configurations may incorporate hammermill rod hole of varying shapes and sizes and saddles of varying shapes and sizes or the use of non-planar hammer bodies that have a recessed or protruding surface. 1. An improved , non-forged hammer for use in a rotatable hammermill assembly comprising: a hammer body front surface;', 'a first end; and', 'a second end for contact and delivery of momentum to material to be comminuted, wherein said second end has a weld hardened edge;, 'a hammer body comprising a saddle bottom surface;', 'a saddle front surface;', 'a first fender extending upwardly from the saddle bottom surface to a first top fender edge, the first top fender edge being parallel to the saddle bottom surface; and', 'a second fender extending upwardly from the saddle bottom surface to a second top fender edge, the second top fender edge being parallel to the saddle bottom surface; and, 'a saddle secured to the hammer body, the saddle comprisinga rod hole passing through the hammer body and the saddle.2. The non-forged hammer of wherein the hammer body further comprises a hammer body bottom surface flush with the saddle bottom surface.3. The non-forged hammer of further comprising a u- ...

SYSTEMS AND METHODS PROVIDING COORDINATED DUAL POWER OUTPUTS SUPPORTING A SAME WELDING OR AUXILIARY POWER PROCESS

Embodiments of welding systems and methods with coordinated dual power outputs supporting a same welding process or a same AC output process are disclosed. One embodiment of a welding system includes an engine and a generator operatively connected to the engine, where the engine is configured to drive the generator to produce electrical input power. The welding system also includes a power supply operatively connected to the generator and having at least one controller. The power supply is configured to convert the electrical input power to form two power outputs that are coordinated with each other, at least in time, via the controller to support a same welding process. The same welding process may be, for example, a hotwire welding process, a tandem metal inert gas (MIG) welding process, or an alternating current (AC) output process. 1. A hotwire welding system , the hotwire welding system comprising:an engine;a generator operatively connected to the engine, wherein the engine is configured to drive the generator to produce electrical input power;a power supply operatively connected to the generator and having at least one controller, wherein the power supply is configured to convert the electrical input power to form two power outputs that are coordinated with each other, at least in time, via the at least one controller to support a same hotwire welding process, and wherein a first power output of the two power outputs is an arc welding output and a second power output of the two power outputs is a filler wire heating output; anda wire feeding device operatively connected to the power supply and configured to feed a filler wire toward a workpiece during the same hotwire welding process.2. The hotwire welding system of claim 1 , wherein the arc welding output is one of a tungsten inert gas (TIG) welding output claim 1 , a metal inert gas (MIG) welding output claim 1 , a submerged arc welding (SAW) output claim 1 , or a flux cored arc welding (FCAW) output.3. The ...

METHODS FOR WIRE SURFACE OXIDATION REMOVAL AND/OR WIRE PREHEATING USING POLYPHASE ELECTRIC ARC PREHEATING

An apparatus and system for preheating and removing surface oxidation of welding wire using electric arcs one via three or more tungsten electrodes connected to a polyphaser preheating power source is disclosed. Electric arc preheating of welding wire allows increased efficiency and deposition rates. 1. An apparatus for preheating welding wire , the apparatus comprising:an input configured to receive multi-phase power;a first tungsten electrode connected via a first conductor to the input, wherein the first conductor is configured to conduct a first phase of the multi-phase power received at the input;a second tungsten electrode connected via a second conductor to the input, wherein the second conductor is configured to conduct a second phase of the multi-phase power received at the input; anda third tungsten electrode connected via a third conductor to the input, wherein the third conductor is configured to conduct a third phase of the multi-phase power received at the input.2. The apparatus of claim 1 , wherein the apparatus is configured to preheat welding wire via electric arc preheating.3. The apparatus of claim 2 , further comprising a first region comprising shielding gas claim 2 , wherein the electric arc preheating occurs within the first region.4. The apparatus of claim 3 , further comprising:a wire guide configured to deliver preheated welding wire from the first region to a workpiece; anda gas connecter configured to deliver shielding gas to the first region around the preheated welding wire delivered to the workpiece.5. The apparatus of claim 2 , wherein the multi-phase power is three-phase power.6. The apparatus of claim 5 , wherein the first tungsten electrode is offset from the second tungsten electrode around a circumference of the welding wire being preheated by 120 degrees claim 5 , and the third tungsten electrode is offset circumferentially from the second tungsten electrode around a circumference of the welding wire by 120 degrees claim 5 , and ...

SYSTEMS AND METHODS FOR PROVIDING LOCATION SERVICES FOR A WELDING POWER SUPPLY

Embodiments described herein include wireless control of a welding power supply via portable electronic devices, such as dedicated original equipment manufacturer (OEM) welding remote devices, cellular radio telephones, satellite radio telephones, laptops computers, tablet computers, and so forth. In particular, operating parameters and statuses of the welding power supply may be modified by the portable electronic device, as well as be displayed on the portable electronic device. A pairing procedure may be used to pair the welding power supply and the portable electronic device in a wireless communication network. Furthermore, in certain embodiments, a method of providing location services for the welding power supply includes utilizing location data for the portable electronic device controlling the welding power supply as an approximation for the location of the welding power supply. 1. A welding power supply comprising:power conversion circuitry configured to convert an input power into an output power for a welding operation;wireless communication circuitry configured to wirelessly communicate with a portable electronic device via a wireless communication network; andcontrol circuitry configured to pair the portable electronic device with the welding power supply in the wireless communication network, to control operation of the power conversion circuitry based at least in part on commands received wirelessly from the portable electronic device via the wireless communication network, and to set location data for the welding power supply equal to location data of the portable electronic device.2. The welding power supply of claim 1 , wherein the control circuitry is configured to transmit operational data to the portable electronic device for temporary storage and geotagging when the control circuitry determines that the wireless communication circuitry has no access or limited access to a telecommunication infrastructure.3. The welding power supply of claim 1 , ...

CENTRAL NEGATIVE PRESSURE ARC WELDING APPARATUS AND METHOD

The present disclosure relates to a central negative pressure arc welding apparatus and method. Through a pumping gas pipeline from the suction device to hollow tubular electrode, a suction device may establish a stable, high energy density and binding arc beneath hollow tubular electrode. The binding degree, energy density and voltage of arc may be adjusted by changing the value of negative pressure in the center of arc. Accordingly, welding heat input and coefficient of weld may be precisely controlled. This apparatus may further set up central pulsating negative pressure arc by turning on valve periodically to make a periodic negative pressure in the center of arc. This present disclosure both possesses good stability and adaptability of traditional Gas Tungsten Arc Welding and achieves binding arc and good penetration of Plasma Arc Welding. Furthermore, this present disclosure improves the mechanical properties of welded joints. 1. A central negative pressure arc welding apparatus comprising:a welding torch containing a hollow tubular electrode; anda suction device connected with an inner chamber of the hollow tubular electrode such that a stable negative pressure region is formed in the inner chamber of the hollow tubular electrode and an arc center of the hollow tubular electrode.2. The apparatus of claim 1 , further comprising:a pressure release device, wherein the suction device is connected through with the hollow tubular electrode via the pressure release device, and wherein a valve is provided in a gas pipeline from the pressure release device to the hollow tubular electrode.3. The apparatus of claim 2 , further comprising:a pressure display device configured to measure and display pressure of the pressure release device, and wherein the pressure display device is connected with the pressure release device.4. The apparatus of claim 1 , wherein the welding torch is a non-consumable electrode welding torch.5. A method for central negative pressure arc ...

WELDING PROCESS

A method and apparatus for welding a first component to a second component. A scanning head is positionally calibrated within a localised work envelope including the components, the positional calibration being referenced to at least one datum feature within the work envelope. Profiles of the components are scanned within the localised work envelope using the calibrated scanning head. A cloud point data image of defined coordinate positions of surfaces and edges to be welded within a space envelope is generated from the scanned profiles. A robotic welding torch electrode tip is scanned using the calibrated scanning head to determine a defined coordinate position of the electrode tip within the space envelope. The components are welded using the torch, the torch controlled using the cloud point data image and the defined coordinate position such that the electrode tip is held at pre-determined stand-off positions around the components during the welding. 1. A method for welding a first component to a second component , including:positionally calibrating a scanning head within a localised work envelope including the first component and the second component, the positional calibration being referenced to at least one datum feature within the work envelope;scanning profiles of the first component and the second component within the localised work envelope using the calibrated scanning head;generating from the scanned profiles a cloud point data image of defined coordinate positions of surfaces and edges to be welded within a space envelope;scanning an electrode tip of a robotic welding torch using the calibrated scanning head to determine a defined coordinate position of the electrode tip within the space envelope; andwelding the first component to the second component using the robotic welding torch, wherein the robotic welding torch is controlled using the cloud point data image and the defined coordinate position of the electrode tip such that the electrode tip is ...

WELD OVERLAY SYSTEM

A weld overlay system includes a workpiece jig holding a workpiece in manner that the workpiece center axis direction is parallel to X-axis direction, and rotates the workpiece in circumferential direction, a carriage, welding base supported on the carriage in manner that the welding base is displaceable with respect to the carriage in Y-axis direction and Z-axis direction, at least one pair of rollers and welding torch are supported on the welding base, and like. Pair of rollers include rotary shafts extend in parallel with the X-axis and are spaced apart from each other in Y-axis direction. The rollers are pressed against portion of the workpiece above the workpiece center axis C. The welding torch is supported on the welding base in manner that distances in Y-axis direction from the rotary shafts of the pair of rollers to the tip end of the welding torch are equal to each other. 1. A weld overlay system which weld overlays an outer peripheral surface of a workpiece of a circular tube shape , the weld overlay system comprising:a workpiece jig which holds the workpiece in such a manner that a center axis direction of the workpiece conforms to a first direction, and rotates the workpiece in a circumferential direction thereof;a carriage which moves in the first direction along the workpiece held by the workpiece jig;a welding base supported on the carriage in such a manner that the welding base is relatively displaceable with respect to the carriage in a second direction perpendicular to the first direction and in a third direction perpendicular to the first direction and the second direction;at least one pair of rollers including rotary shafts, respectively, extending in parallel with the first direction, the pair of rollers being supported on the welding base in such a manner that the rotary shafts of the pair of rollers are spaced apart from each other in the second direction, and the pair of rollers are pressed against the outer peripheral surface of the ...

Apparatus and method for cleaning oxide film

An apparatus and method for cleaning an oxide film using a direct current reverse polarity are provided. The apparatus for cleaning an oxide film formed on a workpiece may include a power supply configured to apply direct current power and to include a positive electrode terminal and a negative electrode terminal, the workpiece configured to be electrically connected to the negative electrode terminal to act as a negative electrode to which a current is applied, and a torch having a positive electrode, which is spaced apart from the oxide film by a predetermined distance and is electrically connected to the positive electrode terminal, the torch being installed to be movable relative to the workpiece. The oxide film formed on the workpiece may be removed by applying a reverse polarity direct current between the workpiece, serving as the negative electrode, and the positive electrode to generate an arc.

Welding tool for robot and robot

A welding tool for a robot welds together a first component and a second component by using a metallic welding element disposed within a through-hole in the second component. The welding tool includes a welding torch attached to an arm, an element pusher that is attached to a distal end of the arm and disposes the held welding element between the welding torch and the through-hole and disposes at least a part of the welding element within the through-hole, a component pusher attached to the distal end of the arm and movable in an axial direction of a distal end of the welding torch, and a driving device that presses the component pusher against the second component. The element pusher is movable in the axial direction relative to the component pusher.

SYSTEMS AND METHODS FOR WELDING ZINC-COATED WORKPIECES

A welding system includes a welding power source configured to provide pulsed electropositive direct current (DCEP), a gas supply system configured to provide a shielding gas flow that is at least 90% argon (Ar), a welding wire feeder configured to provide tubular welding wire. The DCEP, the tubular welding wire, and the shielding gas flow are combined to form a weld deposit on a zinc-coated workpiece, wherein less than approximately 10 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece. 1. A welding system , comprising:a welding power source configured to provide pulsed electropositive direct current (DCEP);a gas supply system configured to provide a shielding gas flow that is at least 90% argon (Ar); anda welding wire feeder configured to provide tubular welding wire, wherein the DCEP, the tubular welding wire, and the shielding gas flow are combined to form a weld deposit on a zinc-coated workpiece, wherein less than approximately 10 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece.2. The welding system of claim 1 , wherein the shielding gas flow is at least 95% Ar.3. The welding system of claim 2 , wherein the shielding gas flow is at least 99% Ar.4. The welding system of claim 1 , comprising a welding torch configured to receive and combine the DCEP claim 1 , the tubular welding wire claim 1 , and the shielding gas flow to form the weld deposit on the zinc-coated workpiece.5. The welding system of claim 1 , wherein less than approximately 9 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece.6. The welding system of claim 5 , wherein less than approximately 8 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece.7. The welding system of claim 6 , wherein less than approximately 7 wt % of the tubular ...

METHOD AND DEVICE FOR WELDING BY MEANS OF A NON-CONSUMABLE ELECTRODE

The invention relates to a method and a device () for welding by means of a non-consumable electrode (), wherein a welding current (I) alternating in polarity at a welding frequency (f) is applied by a current source () between the electrode () and a workpiece () in order to form an arc (), and the polarity is changed back to the polarity before the polarity change if the voltage (U) is above the voltage threshold value (U, U) and the welding current (I) is below the current threshold value (I, I). According to the invention, the welding voltage (U) and the welding current (I) after a preset duration (Δt) after the polarity change are compared with the voltage threshold value (U, U) and the current threshold value (I, I), and in addition the power (P) in the arc () is determined, and the polarity is changed back if the welding voltage (U) is greater than the voltage threshold value (U, U), and/or if the welding current (I) is less than the current threshold value (I, I), and/or the determined power (P) is less than a preset power threshold value (P). 123245245. A method for welding by means of a non-consumable electrode () , in particular a tungsten electrode , wherein a welding current (I) alternating in polarity at a welding frequency (f) is applied by a current source () between the electrode () and a workpiece () in order to form an arc () , and after a change in polarity the welding voltage (U) and the welding current (I) between the electrode () and the workpiece () are measured and the voltage (U) is compared with a preset voltage threshold value (U , U) and the welding current (I) is compared with a preset current threshold value (I , I) and the polarity is changed back to the polarity before the polarity change if the voltage (U) is above the voltage threshold value (U , U) and the welding current (I) is below the current threshold value (I , I) , wherein the welding voltage (U) and the welding current (I) after a preset duration (Δt) after the polarity ...

METHODS OF FORMING A MICROELECTRONIC DEVICE STRUCTURE, AND RELATED MICROELECTRONIC DEVICE STRUCTURES AND MICROELECTRONIC DEVICES

A method of forming a microelectronic device structure comprises coiling a portion of a wire up and around at least one sidewall of a structure protruding from a substrate. At least one interface between an upper region of the structure and an upper region of the coiled portion of the wire is welded to form a fused region between the structure and the wire. 1. A method of forming a microelectronic device structure , comprising:coiling a portion of a wire up and around at least one sidewall of a structure protruding from another structure; andwelding at least one interface between an upper region of the structure and an upper region of the coiled portion of the wire to form a fused region between the structure and the wire.2. The method of claim 1 , wherein coiling a portion of a wire up and around at least one sidewall of a structure comprises coiling the portion of the wire substantially completely around a lateral periphery of the structure at least one time.3. The method of claim 1 , wherein coiling a portion of a wire up and around at least one sidewall of a structure comprises coiling each of a sheathed region of the wire and an unsheathed region of the wire up and around the at least one sidewall of the structure.4. The method of claim 3 , wherein coiling each of a sheathed region of the wire and an unsheathed region of the wire up and around the at least one sidewall of the structure comprises:wrapping the sheathed region of the wire up and around a periphery of the structure at least one time; andwrapping the unsheathed region of the wire up and around the periphery of the structure at least one time.5. The method of claim 1 , wherein coiling a portion of a wire up and around at least one sidewall of a structure comprises directly physically contacting the at least one sidewall of the structure with the portion of the wire across an entire length of the portion of the wire.6. The method of claim 1 , further comprising selecting the wire to comprise an ...

ELECTRIC ARC START SYSTEMS AND METHODS

A system and methods for electrically starting an arc in a welding process are disclosed. The system and methods may reduce an electromagnetic interference (EMI) footprint during the arc start by reducing the average power spectral density output and broadening the frequency spectrum of the arc EMI footprint. In one embodiment, a welding system may include a welding torch and a welding power source electrically coupled to the welding torch via a weld cable configured to supply electrical energy to the welding torch. The welding power source may include pseudo-random noise (PRN) generator control logic circuitry configured to generate a dithered pulse waveform with a pseudo-randomly selected data sequence of binary values based on one or more baselines, and to apply the dithered pulse waveform to an oscillator during arc starting in a tungsten inert gas (TIG) welding process performed by the welding torch. 123-. (canceled)24. A welding system , comprising: pseudo-random noise (PRN) generator control logic circuitry configured to generate a dithered pulse waveform with a pseudo-randomly selected data sequence; and', 'apply the dithered pulse waveform to an oscillator during arc starting in a tungsten inert gas (TIG) welding process performed by the welding torch., 'a welding power source configured to be coupled to a welding torch via a weld cable and configured to supply welding power to the welding torch, wherein the welding power source comprises25. The welding system of claim 24 , wherein the dithered pulse waveform is generated based at least in part on one or more baselines comprising a minimum on time baseline for the oscillator to start an arc and a maximum off time baseline for the oscillator before an arc extinguishes.26. The welding system of claim 25 , wherein the pseudo-randomly selected data sequence comprises initial binary values set to on for the minimum on time according to the baselines for the oscillator to start the arc claim 25 , intermediary ...

NON-TRANSFERRED PLASMA ARC SYSTEM, CONVERSION ADAPTER KIT, AND NON-TRANSFERRED PLASMA ARC TORCH

A non-transferred plasma arc system, which is provided with a non-transferred plasma torch () that is provided with a non-consumable electrode () as a negative electrode and an insert chip as a positive electrode, the insert chip being cooled by a circulated coolant (W) and the insert chip releasing a plasma arc onto a workpiece. The plasma arc torch () comprises a TIG welding torch () that is provided with the non-consumable electrode (), whereby an arc is generated between the workpiece and said electrode (), and a torch nozzle (), which releases a shield gas toward an arc-generated weld pool of the workpiece. The plasma arc torch () is provided with an attachment () that is detachably attached to the TIG welding torch () while surrounding the periphery of the torch nozzle () and that functions as the insert chip, whereby a non-transferred plasma arc is inexpensively and easily used. 1. A non-transferred plasma arc system comprising a non-transferred plasma arc torch and a power unit for supplying power and gas to the non-transferred plasma arc ,whereinthe plasma arc torch comprises a non-consumable electrode and an insert chip, wherein the insert chip is provided as an anode for emitting a plasma arc to the workpiece while the insert chip is cooled by circulation of coolant, andthe plasma arc torch comprisesa portion which repurposes a TIG welding torch comprising the non-consumable electrode which generates an arc between a workpiece and the non-consumable electrode, and a torch nozzle which releases a shielding gas toward the molten pool of the workpiece caused by the arc, andan attachment which functions as the insert chip and is provided so as to be freely attachable and detachable to and from the TIG welding torch in a state that the attachment surrounds the periphery of the torch nozzle.2. The non-transferred plasma arc system according to claim 1 ,wherein the plasma arc torch further comprises a shield cap which releases shielding gas from the outside of ...

WELD TRAINING SYSTEMS AND METHODS

An example weld training system includes: a weld training device configured to perform a simulated welding procedure on a simulated weld joint; a work surface comprising the simulated weld joint; a sensing device configured to track weld training device location information during the simulated welding procedure; a visual interface configured to display results of the simulated welding procedure based on the weld training device location information; and an enclosure comprising an interior volume configured to house within its interior the visual interface, the work surface, and the sensing device. 1a weld training device configured to perform a simulated welding procedure on a simulated weld joint;a work surface comprising the simulated weld joint;a sensing device configured to track weld training device location information during the simulated welding procedure;a visual interface configured to display results of the simulated welding procedure based on the weld training device location information; andan enclosure comprising an interior volume configured to house within its interior the visual interface, the work surface, and the sensing device.. A weld training system, comprising: This patent is a continuation of U.S. patent application Ser. No. 15/840,104, filed Dec. 13, 2017, entitled “Weld Training System and Method,” now U.S. Pat. No. 10,861,345, which is a continuation of U.S. patent application Ser. No. 14/462,286, filed Aug. 18, 2014, entitled “Weld Training System and Method,” now U.S. Pat. No. 9,875,665. The entireties of U.S. patent application Ser. No. 15/840,104 and U.S. patent application Ser. No. 14/462,286 are incorporated herein by reference.This disclosure relates generally to welding systems, and more particularly, to a portable welding system that may be used for as a tool for training and/or recruiting purposes.Welding is a process that has increasingly become utilized in various industries and applications. Such processes may be automated in ...

PRECIPITATION-STRENGTHENED CAST PRODUCT WELDING REPAIR METHOD

A precipitation-strengthened cast product welding repair method repairs a damaged portion of a precipitation-strengthened cast product. The method includes welding the damaged portion by micro tungsten inert gas (TIG) welding using a welding material containing a solid-solution-strengthened alloy and having higher toughness than the precipitation-strengthened cast product.

TIG WELDING TORCH BODY, TIG WELDING TORCH HANDLE, AND TIG WELDING TORCH HAVING SUCH A TIG WELDING TORCH BODY AND TIG WELDING TORCH HANDLE

A tungsten inert gas welding torch body, a TIG welding torch handle, and a TIG welding torch has a gas channel terminating in front of the distal end of a plug-in element in an inlet opening arranged on the shell side of the plug-in element, and a central inlet mouth at the distal end of the plug-in element terminating in front of the distal end of the plug-in element in a return opening on the shell side at the plug-in element. The TIG welding torch handle has a second channel arranged coaxially to the central channel, and a third channel arranged coaxially to the second channel. A connection is between the second channel and the third channel. The first channel has a mouth in the center of the receiving part, and each of the second and third channels has a mouth on the shell side of the receiving part. 12345673987161016641011716719117217117. A TIG welding torch body () , having a torch neck () , an electrode holder () for holding a welding electrode () , a gas nozzle () and a substantially cylindrical plug-in element () arranged in the torch neck () for detachable connection to a receiving part () of a welding torch handle () , which plug-in element () has an inlet opening () for the shielding gas (G) and a gas duct () , connected to the inlet opening () , for conducting the shielding gas (G) to the gas nozzle () and is designed to transmit a welding current (I) to the electrode holder () , wherein the gas duct () terminates in front of the distal end () of the plug-in element () in an inlet opening () arranged on the lateral side of the plug-in element () , a substantially central inlet orifice () is provided at the distal end () of the plug-in element () , and a return opening () terminates on the lateral side of the plug-in element () in front of the distal end () of the plug-in element ().227981298. The TIG welding torch body () according to claim 1 , wherein the plug-in element () is designed for plug-in connection to the receiving part () of the welding ...

WELDING TORCH AND ALL-POSITION WELDING DEVICE

A welding torch includes a gas lens of a lattice structure that straightens a shielding gas. The welding torch includes a non-consumable electrode, an electrode holder into which the non-consumable electrode is inserted, and a torch body including a sleeve that holds the electrode holder, a flow path forming portion that forms a shielding gas flow path around the sleeve, and a nozzle that forms a shielding gas guiding space around a distal end of the non-consumable electrode, the distal end extending from the electrode holder, in which the gas lens is provided so as to separate the shielding gas flow path from the shielding gas guiding space. 1. A welding torch comprising a gas lens of a lattice structure that straightens a shielding gas.2. The welding torch according to claim 1 ,wherein the gas lens has a structure in which mesh sheets each formed by joining a plurality of beams in a planar manner are stacked in a thickness direction with different phases.3. The welding torch according to claim 2 ,wherein lattice points of the stacked mesh sheets are joined by a vertical beam.4. The welding torch according to claim 1 , wherein the welding torch includesa non-consumable electrode;an electrode holder that holds the non-consumable electrode; anda torch body including a sleeve into which the electrode holder is inserted, a flow path forming portion that forms a shielding gas flow path around the sleeve, and a nozzle that forms a shielding gas guiding space around a distal end of the non-consumable electrode, the distal end extending from the electrode holder,wherein the gas lens is provided so as to separate the shielding gas flow path of the torch body from the shielding gas guiding space.5. The welding torch according to claim 4 ,wherein an inner peripheral portion of the gas lens is connected to an outer peripheral surface of the sleeve, and an outer peripheral portion of the gas lens is connected to an inner peripheral surface of the nozzle.6. The welding torch ...

Reciprocating Preheating System, Method, And Apparatus

A welding system configured to eliminate effects of arc blow in a welding operation. The welding system comprises welding circuitry, preheat circuitry, a drive roller, and control circuitry configured to perform a reciprocation cycle. The reciprocation cycle may include the steps of: advancing a filler material toward the welding work piece until the filler material is electrically connected to the weld pool; supplying the preheat power to heat the filler material while the filler material is electrically connected to the weld pool; retracting the filler material away from the welding work piece until the filler material is not electrically connected to the weld pool; and terminating supply of the preheat power to the filler material while the filler material is not electrically connected to the weld pool.

PRECIPITATION-STRENGTHENED CAST PRODUCT WELDING REPAIR METHOD

A precipitation-strengthened cast product welding repair method is a method of repairing a damaged portion of a precipitation-strengthened cast product. The method includes: forming a first weld layer on a surface of the damaged portion by micro tungsten inert gas (TIG) welding using a solid-solution-strengthened welding material having higher toughness than the cast product; and forming a second weld layer on the first weld layer by building up the second weld layer by laser welding using a dual multi-phase nanostructure intermetallic compound as a welding material and being higher in heat supply rate than the micro TIG welding. 1. A precipitation-strengthened cast product welding repair method being a method of repairing a damaged portion of a precipitation-strengthened cast product , the method comprising:forming a first weld layer on a surface of the damaged portion by micro tungsten inert gas (TIG) welding using a solid-solution-strengthened welding material having higher toughness than the cast product; andforming a second weld layer on the first weld layer by building up the second weld layer by laser welding using a dual multi-phase nanostructure intermetallic compound as a welding material and being higher in heat supply rate than the micro TIG welding.2. A precipitation-strengthened cast product welding repair method being a method of repairing a damaged portion of a precipitation-strengthened cast product , the method comprising:forming a first weld layer on a surface of the damaged portion by micro tungsten inert gas (TIG) welding using a solid-solution-strengthened welding material having higher toughness than the cast product;forming a second weld layer on the first weld layer by laser welding using a same welding material as the first weld layer formation step and being higher in heat supply rate than the micro TIG welding; andforming a third weld layer on the second weld layer by building up the third weld layer by laser welding using a dual multi- ...

WELDING TORCH

A welding torch that comprises: a main body that is formed as a hollow pipe body, and that has a first inclined surface formed inside the pipe body; an electrode bar cap that has a collet chuck on the front side of a joint that is assembled on one side of the pipe body in a screw-coupling manner, that moves the collet chuck by tightening or loosening the joint; a head that has a socket that is arranged on a side facing the pipe body and that sprays supplied gas in all directions, and that is formed of a nozzle that is assembled on an external surface of the socket; and a connector that guides a gas supply into the pipe body. 1. A welding torch comprising:a main body having a hollow body pipe and a first inclined surface formed in the body pipe;an electrode bar cap having a collet chuck disposed in front of a joint screw-coupled with one side of the body pipe, wherein the collet chuck is moved when the joint is tightened or released in such a way that the electrode bar is tightened when the collect chuck gets in contact with the first inclined surface and is released when being separated from the first inclined surface so as to adjust the length of the electrode bar;a head disposed at the opposite side of the body pipe and having a socket for spraying supplied gas in all directions and a nozzle assembled to the outer surface of the socket; anda connector guiding a gas supply to the body pipe and being electrically connected for ignition and welding,wherein some of the gas sprayed in all directions from the inside of the nozzle through the socket gets in contact with the nozzle to cool heat during welding.2. A welding torch comprising:a main body having a hollow body pipe, a first inclined surface formed in the body pipe to get frontward narrower, and a second connecting pipe connected to an inner space of the body pipe so that gas and electric power is supplied through the second connecting pipe;an electrode bar cap having a collet chuck assembled into the main body, ...

WELD TRAINING SYSTEMS AND METHODS

Weld training systems and methods are disclosed. An example weld training system includes: a weld training device configured to perform a simulated welding procedure on a simulated weld joint; a work surface comprising the simulated weld joint; a sensing device configured to track weld training device location information during the simulated welding procedure; a visual interface configured to display the simulated welding procedure; and an enclosure comprising an interior volume configured to house within its interior the visual interface, the work surface, or the sensing device. 1. A weld training system , comprising:a weld training device configured to perform a simulated welding procedure on a simulated weld joint;a work surface comprising the simulated weld joint;a sensing device configured to track weld training device location information during the simulated welding procedure;a visual interface configured to display the simulated welding procedure; andan enclosure comprising an interior volume configured to house within its interior the visual interface, the work surface, or the sensing device.2. The system of claim 1 , wherein the location information comprises position information.3. The system of claim 1 , wherein the location information comprises orientation information.4. The system of claim 1 , wherein the enclosure is portable and configured to house within its interior the visual interface and the work surface during the simulated welding procedure.5. The system of claim 4 , wherein the enclosure is further configured to be transported by an operator of the weld training system.6. The system of claim 4 , wherein the enclosure is self-contained and configured to perform a simulated welding procedure independently of an external computing system claim 4 , an external display claim 4 , an external power source claim 4 , or a combination thereof.7. The system of claim 1 , wherein the work surface is coupled to the enclosure.8. The system of claim 1 , ...

Semi-automatic torch trigger for rotating power connector for welding torch cables

A semi-automatic torch trigger for a rotating power connector in use in a welding torch cables is provided. In some examples, a trigger mechanism is configured to transmit control signals through a transmission channel that is not subject to mechanical wear from rotational movement of the rotating power connector, providing reliable communication between a welding torch trigger and a welding power supply without breaking electrical contact or putting unnecessary strain on the welding cable, even as the welding torch rotates relative to the welding torch cable.

JOINT STRUCTURE

A joint structure includes a first metallic material having a first projection, a second metallic material similar in type to the first metallic material and weldable to the first metallic material, and a different type of material having a first penetrating part and sandwiched between the first metallic material and the second metallic material, the different type of material being different in type from the first metallic material and the second metallic material and difficult to be welded to the first metallic material and the second metallic material. The first projection is smaller in diameter or width than the first penetrating part and is spaced from the rim of the first penetrating part by a first gap. The first projection is positioned in the first penetrating part and is spaced from the second metallic material by a second gap in the thickness direction of the first penetrating part. The second gap has a size of a predetermined percentage of the thickness of the first projection of the first metallic material to which arc welding id applied. The first metallic material and the second metallic material are melted and joined together inside the first penetrating part to compress and fix the different type of material, so that the different type of material, the first metallic material, and the second metallic material are fixed together. 1. A joint structure comprising:a first metallic material having a first projection;a second metallic material similar in type to the first metallic material and weldable to the first metallic material; anda different type of material different in type from the first metallic material and the second metallic material, the different type of material having a first penetrating part and sandwiched between the first metallic material and the second metallic material, the different type of material being difficult to be welded to the first metallic material and the second metallic material,whereinthe first projection is smaller ...

AUSTENITIC STEEL WELDED JOINT

An austenitic steel welded joint is produced by gas tungsten arc welding an austenitic steel base metal with a welding material of austenitic steel having a composition comprising: C≦0.1%; Si≦0.8%; Mn: 1.5 to 5.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al<0.05%; N: 0.15 to 0.35%; and one or more of V≦0.5%, Nb≦0.5%, and Mo≦4.5% if necessary, the balance being Fe and impurities that contain O≦0.02%, P≦0.05%, and S≦0.03%. The chemical composition satisfies [413−462(C+N)−9.2Si−8.1 Mn−13.7Cr−9.5Ni−18.5Mo≦−70]. The amount of ferrite of the weld metal is 20% or less in area ratio. The welded joint has high strength and excellent hydrogen embrittlement resistance and is useful in high-pressure hydrogen gas piping where no postweld heat treatment is performed. 1. An austenitic steel welded joint produced by welding base metal with a gas tungsten arc welding process which uses welding material , whereinthe base metal has a chemical composition comprising: by mass %, C: 0.1% or less; Si: 0.8% or less; Mn: 2.5 to 5.5%; Ni: 8 to 15%; Cr: 19 to 25%; Al: less than 0.05%; and N: 0.15 to 0.45%, the balance being Fe and impurities that contain O: 0.02% or less, P: 0.05% or less, and S: 0.03% or less, andthe welding material has a chemical composition comprising: by mass %, C: 0.1% or less; Si: 0.8% or less; Mn: 1.5 to 4.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al: less than 0.05%; and N: 0.15 to 0.35%, the balance being Fe and impurities that contain O: 0.02% or less, P: 0.05% or less, and S: 0.03% or less,whereinweld metal has a chemical composition comprising: by mass %, C: 0.1% or less; Si: 0.8% or less; Mn: 1.5 to 5.5%; Ni: 8 to 15%; Cr: 18 to 24%; Al: less than 0.05%; and N: 0.15 to 0.35%, the balance being Fe and impurities that contain O: 0.02% or less, P: 0.05% or less, and S: 0.03% or less,the chemical composition of the weld metal satisfies Formula (1),and {'br': None, 'b': '70', '413−462(C+N)−9.2Si−8.1Mn−13.7Cr−9.5Ni−18.5Mo≦−b \u2003\u2003(1)'}, 'an amount of ferrite in the weld metal is ...

Metal Carbide/Nitride Precipitation Control in Fusion Welding

Properties and performance of weld material between metals in a weldment is controlled by modifying one or more of the nitrogen content and the carbon content to produce carbide (e.g. MC-type), nitride and/or complex carbide/nitride (e.g. MX-type) type precipitates. Fusion welding includes (i) adjusting shield gas composition to increase nitrogen/carbon gas and nitride/carbide species, (ii) adjusting composition of nitrogen/carbon in materials that participate in molten welding processes, (iii) direct addition of nitrides/carbides (e.g. powder form), controlled addition of nitride/carbide forming elements (e.g. Ti, Al), or addition of elements that increase/impede solubility of nitrogen/carbon or nitride/carbide promoting elements (e.g. Mn), and (iv) other processes, such as use of fluxes and additive materials. Weld materials have improved resistance to different cracking mechanisms (e.g., hot cracking mechanisms and solid state cracking mechanisms) and improved tensile related mechanical properties. 18-. (canceled)9. A method of fusion welding , comprising:forming a region of molten material between a first metallic body and a second metallic body, wherein the molten material includes molten base metal from the first metallic body, molten base metal from the second metallic body, weld metal from a welding alloy, and, optionally, one or more molten additive material;modifying at least one of a nitrogen content of the molten material and a nitride content of the molten material;coalescing the molten material; andsolidifying the molten material to form a weld material,wherein the weld material joins the first metallic body to the second metallic body to form a weldment, andwherein the solidified weld material has a composition including 15 ppm to 120 ppm or 200 ppm to 1500 ppm nitrogen.10. The method of claim 9 , wherein a microstructure of the solidified weld material includes a plurality of precipitates claim 9 , wherein the plurality of precipitates include one or ...

ALUMINUM ALLOY WELDING WIRE

A composition for welding or brazing aluminum comprises silicon (Si) and magnesium (Mg) along with aluminum in an alloy suitable for use in welding and brazing. The Si content may vary between approximately 4.7 and 10.9 wt %, and the Mg content may vary between approximately 0.20 wt % and 0.50 wt %. The alloy is well suited for operations in which little or no dilution from the base metal affects the Si and/or Mg content of the filler metal. The Si content promotes fluidity and avoids stress concentrations and cracking The Mg content provides enhanced strength. Resulting joints may have a strength at least equal to that of the base metal with little or no dilution (e.g., draw of Mg). The joints may be both heat treated and artificially aged or naturally aged. 1. A method of forming a metallurgical bond , comprising:metallurgically bonding at least a portion of a work piece base metal and a filler metal to form the metallurgical bond, wherein the filler metal is an alloy of silicon in a weight percent of between approximately 4.7% and approximately 6.0%, magnesium in a weight percent of between approximately 0.20% and approximately 0.50%, and a remainder of aluminum and trace elements.2. The method of claim 1 , wherein the metallurgical bond comprises less than approximately 20% of the base metal.3. The method of claim 1 , wherein the metallurgical bond has a post-bonding transverse shear strength between approximately 25 KSI and approximately 35 KSI claim 1 , and a post-bonding tensile strength between approximately 35 KSI and approximately 50 KSI.4. The method of claim 3 , wherein the metallurgical bond has a post-bonding transverse shear strength between approximately 28 KSI and approximately 33 KSI claim 3 , and a post-bonding tensile strength between approximately 40 KSI and approximately 45 KSI.5. The method of claim 1 , comprising aluminum in a weight percent of between approximately 92.5% and approximately 95.0% claim 1 , and a remainder of trace elements.6. ...

WELDING POSITIONING TOOL WITH INTERNAL GAS PORTS

Systems and methods are provided for a boss welding positioning tool. The boss welding positioning tool may, at least, include a purge base, a purge gas delivery connector, and features for aligning two items to be welded together. The purge gas delivery connector may be configured to be coupled to the purge base and may include ports that receive purge gas and deliver purge gas to an inner portion of the items to be welded. 1. A boss welding positioning tool for delivering purge gas to an internal portion of an intersection of a boss and a duct for welding the boss to the duct , the tool comprising:a purge base configured to be disposed within an inner portion of a duct; anda purge gas delivery connector comprising a purge gas inlet port and a purge gas outlet port, and configured to couple to the purge base, receive purge gas with the purge gas inlet port, and exhaust the purge gas through the purge gas outlet port to the internal portion.2. The tool of claim 1 , further comprising:a boss alignment member configured to couple to the purge gas delivery connector to hold at least a portion of the duct and the boss between the boss alignment member and the purge base.3. The tool of claim 2 , wherein the boss alignment member comprises:a cone portion configured to position the boss relative to the purge base and/or the duct;a nut configured to hold the cone portion against the boss; anda nut driver at least partially disposed between the nut and the cone portion and configured to be coupled to a nut driver receiver of a weld positioning machine.4. The tool of claim 1 , wherein the purge gas delivery connector further comprises a purge gas flow path fluidically connecting the purge gas inlet port and the purge gas outlet port.5. The tool of claim 4 , wherein the purge gas delivery connector comprises a first connector end and a second connector end claim 4 , the first connector end comprises the purge gas inlet port claim 4 , the second connector end is configured to ...

BUILD-UP WELDING METHOD

A build-up welding method () is disclosed in which a welding torch () is guided along a metallic workpiece () and at least one melting wire () serving as a build-up material () is fed at an infeed speed () into the arc () between at least one non-melting electrode () of the welding torch () and the workpiece (). In order to achieve a build-up welding method () with higher build-up speeds in comparison to the prior art, it is proposed for the non-melting electrode () positioned normal to the workpiece () to be guided along the workpiece () and for the fed wire () to also be moved back and forth along its infeed direction (). 1. A build-up welding method , comprising:guiding a welding torch along a metallic workpiece;feeding at least one melting wire serving as a build-up material at an infeed speed into an arc between at least one non-melting electrode of the welding torch and the workpiece; andguiding the non-melting electrode, positioned normal to the workpiece, along the workpiece and moving the melting wire back and forth along an infeed direction of the melting wire.2. The build-up welding method according to claim 1 , comprising feeding the melting wire into the arc in advance in guidance direction of the welding torch.3. The build-up welding method according to claim 1 , comprising feeding the melting wire continuously.4. The build-up welding method according to claim 1 , wherein the non-melting electrode has a diameter of at least 6.4 mm.5. The build-up welding method according to claim 1 , comprising guiding the welding torch along an outer cylindrical surface of a pipe.6. The build-up welding method according to claim 5 , comprising guiding the welding torch along an inner cylindrical surface of the pipe.7. The build-up welding method according to claim 1 , comprising guiding the welding torch along the workpiece in a circular or serpentine fashion.8. The build-up welding method according to claim 1 , wherein the non-melting electrode is a tungsten ...

AIR-COOLED TORCH HEAD ASSEMBLY

According to the present invention, a first buffer member and a second buffer member have first perforated holes and second perforated holes, which are offset at predetermined intervals, respectively, so that generation of heat due to reduction of current density per unit area is reduced, and a detachment preventing part is provided at a lower portion of a torch head rubber cover to prevent slipping during use. In order to effectively block radiant heat emitted from a molten pool during the use, a heat shielding curtain part is provided, and a plurality of grooves are formed in an inner diameter portion of the heat shielding curtain part, so that the rubber cover is prevented from being damaged by swelling due to rapid entry of a gas. 1. An air-cooled torch head assembly including a torch head connection member formed at a center thereof with a gas supply tube to supply a gas to a torch , and formed at an outer diameter portion thereof with a first inclined part , an insertion part , and a first step , which are sequentially arranged , and a torch head body having a through-hole connected to the gas supply tube , formed at an inner diameter portion thereof with a male thread part , and formed at an outer diameter portion thereof with a second step , a second insertion part , and a second inclined part , which are sequentially arranged , the air-cooled torch head assembly comprising:a first buffer member formed at an inner diameter portion thereof with a third step on which the second step is mounted, including a first protrusion provided at a lower portion of the third step, including a second-first inclined part provided at a lower portion of the first protrusion and inclined toward the inner diameter portion of the first buffer member, and formed at a center thereof with a first through-hole;a first cover formed at a center thereof with a first perforated hole, and insert-molded at an outer diameter portion of the first protrusion;a second buffer member having a ...

TIG WELDING TORCH

The invention relates to a TIG welding torch () comprising a torch head () with at least one non-melting electrode () and at least one feeder device () for a melting wire-shaped filler material (), wherein the longitudinal axis of each electrode () and the longitudinal axis of each wire-shaped filler material () intersect each other in a Tool Center Point (TCP), and wherein the torch head () is arranged adjustably on a support () and is adapted to be fixed in at least two different positions while the Tool Center Point (TCP) remains the same. For achieving a compact construction and higher flexibility during welding, the support () is of elongate and quasi V-shaped design and comprises a circular guide () at the front end thereof, in which guide () a slide () connected with the torch head () is adapted to be arranged, so that the outer dimensions of the torch head () are not changed substantially in the case of an adjustment of the torch head (). 11234535266778222. A TIG welding torch () comprising a torch head () with at least one non-melting electrode () and at least one feeder device () for a melting wire-shaped filler material () , wherein the longitudinal axis of each electrode () and the longitudinal axis of each wire-shaped filler material () intersect each other in a Tool Center Point (TCP) , and wherein the torch head () is arranged adjustably on a support () and is adapted to be fixed in at least two different positions while the Tool Center Point (TCP) remains the same , wherein the support () is of elongate and quasi V-shaped design and comprises a circular guide () at the front end thereof , in which guide () a slide () connected with the torch head () is adapted to be arranged , so that the outer dimensions of the torch head () are not changed substantially in the case of an adjustment of the torch head ().2126. The TIG welding torch () according to claim 1 , wherein the torch head () is arranged to be continuously adjustable on the support ().317. The ...

System and method of communicating in a welding system over welding power cables

Systems and methods of the present invention are directed to welding systems having a welding power supply and wire feeder, where the power supply and wire feeder communicate over the welding power cables. In exemplary embodiments, the wire feeder communicates with the power supply over the welding cables using current draw pulses which are generated and recognized by the power supply. Similarly, the power supply generates voltage pulses which are transmitted over the welding power cables and recognized by the wire feeder.

METHOD AND APPARATUS FOR FABRICATION OF ARTICLES BY MOLTEN AND SEMI-MOLTEN DEPOSITION

A method and apparatus for depositing metals and metal-like substances in two and three dimensional form without a substrate in a safe, rapid and economical fashion using gas shielded arc welding equipment and programmable robotic motion. The method and apparatus includes the use and application of robotic controls, temperature and position feedback, single and multiple material feeds, and semi liquid deposition thereby creating near net shape parts particularly well suited to rapid prototyping and lower volume production. 1. An additive manufacturing apparatus to fabricate objects by depositing metal or metal like materials in three dimensions comprising:a build table;a deposition head configured to deposit the metal objects on the build table;a multi-axis robotic system configured to support the deposition head;wherein said build table is configured to be adjustably located in a tank;wherein the quenchant fluid is added to the tank during the build.2. The additive manufacturing apparatus of further comprising one or more level sensors maintaining the level of said quenchant fluid.3. The apparatus of further comprising a weir_maintaining the level of said quenchant fluid.4. The apparatus of further comprising said quenchant fluid being circulated in the tank.5. The apparatus of further comprising said quenchant fluid being circulated at a rate sufficient for convective cooling.6. The apparatus of further comprising a forced flow heat exchanger to maintain said quenchant temperature.7. The apparatus of further comprising a forced flow heat exchanger in a circulating plumbing system.8. The apparatus of wherein only the bottom of said platen is submerged at the beginning or during the build.9. A method for fabricating an object from a metal and a metal like material on a build table while controlling the temperature of the object further comprises:measuring the temperature of the object; andspraying object with quenchant fluid.10. The method of wherein the spray of ...

METHOD AND APPARATUS FOR FABRICATION OF ARTICLES BY MOLTEN AND SEMI-MOLTEN DEPOSITION

A method and apparatus for depositing metals and metal-like substances in two and three dimensional form without a substrate in a safe, rapid and economical fashion using gas shielded arc welding equipment and programmable robotic motion. The method and apparatus includes the use and application of robotic controls, temperature and position feedback, single and multiple material feeds, and semi liquid deposition thereby creating near net shape parts particularly well suited to rapid prototyping and lower volume production. 1. An additive manufacturing apparatus for fabricating a three dimensional object comprising:a multi-axis robotic system configured to support and move a deposition head;the robotic system contained within a sealed enclosed space;an oxygen sensor within the enclosed space.2. The additive manufacturing apparatus as set forth in for fabricating a three dimensional object further comprising means for introducing a gas and monitoring the oxygen concentration within the enclosed space.3. The additive manufacturing apparatus as set forth in further comprising a means for reducing or discontinuing gas flow in response to said oxygen monitoring.4. The additive manufacturing apparatus as set forth in further comprising an air filtration system.5. An additive manufacturing apparatus to fabricate objects by depositing metal or metal like materials in three dimensions comprising:a build table;a deposition head configured to deposit the metal objects on the build table;a multi-axis robotic system configured to support the deposition head;wherein said build table is configured to be adjustably located in a tank, said tank having a quenching fluid therein;wherein material is deposited at a set distance from the level of the quenchant.6. The additive manufacturing apparatus as set forth in wherein said deposition head is capable of being fully submerged in said quenchant.7. The additive manufacturing apparatus of further comprising use of wire with internal inert ...

SYSTEM AND METHOD FOR AUTOMATIC HEIGHT ADJUSTMENT OF A TORCH

The invention described herein generally pertains to a system and method related to adjusting at least one of an arc current for a welding operation, an arc voltage for a welding operation, a wire feed speed for a welding operation, or a height of a torch that performs the welding operation. In particular, a parameter can be updated based upon, for instance, a user input, and the arc current, arc voltage, wire feed speed, or the height of the torch can be calibrated to perform the welding operation. Specifically, while a parameter is being adjusted or transitioned to the setting received via user input, the height of the torch and/or at least one of the arc current level, the arc voltage, the wire feed speed is maintained until the setting is achieved for the parameter. Once the parameter is at the setting, a second arc current level, a second arc voltage, a second wire feed speed, or second height for the torch is implemented to perform the welding operation. 1. A welder system , comprising:a welding torch that includes an electrode used with a welding operation, wherein the welding operation is a MIG welding operation;a power source that creates an arc between the electrode and the workpiece;a controller that adjusts height of the welding torch based upon an arc current used for the welding operation;a detect component that receives a value for a parameter that impacts the arc current for the welding operation upon change of the value for the parameter;a calibration component that calculates at least one of a second arc current level for the welding operation or a second height for the welding torch based on the value for the parameter;the controller adjusts a welding equipment to transition the parameter to the value; andthe controller adjusts the welding torch to the second height or the arc current to the second arc current when the parameter is transitioned to the value.2. The welder system of claim 1 , the controller transitions the welding torch to the ...

Non-consumable electrode arc-welding method

A non-consumable electrode arc-welding method is provided for causing a welding machine to output or stop a welding current in accordance with at least an ON state and an OFF state of a start signal. In the method, a start signal is switched between an ON state and an OFF state, thereby controlling the on/off operation of the welding machine. Further, an operation mode instruction signal is switched between a normal mode and an interval mode, thereby controlling the operation mode of the welding machine. When the operation mode instruction signal indicates the interval mode and also the start signal is in the ON state, the welding current is outputted in a welding current output period. Then, the output of the welding current is suspended in a welding current interval period successively following the welding current output period.

Ac-dc techniques in a portable multi-process welding and cutting machine

A multi-process welding machine provides an intuitive user interface to enable a user to select among different welding processes, and to select parameters for a given selected welding process. The multi-process welding machine also provides an arrangement by which a switching module, or DC to AC converter, of an AC TIG unit can be controlled to alternatively supply AC or DC welding voltages or current. Further, a configuration of switches can be leveraged to automatically (or manually) control the polarity of welding cables for different processes and to engage or disengage a wire feeder when, e.g., a MIG welding process is selected, or not selected, respectively. Finally, in an embodiment, the ferrite or magnetic materials used for a main output inductor and an high frequency starting inductor of the welding machine can be combined.

ROBOTIC WELDING CABLE

A robotic welding cable for a welding torch includes a flexible hose defining a hollow core for passage of welding wire and shielding gas. Conductor strands are arranged around the flexible hose. A composite layered covering includes electrical insulation that covers the conductor strands and an outer jacket that surrounds the electrical insulation. The electrical insulation is formed of an Ethylene Propylene Diene Monomer (EPDM) synthetic rubber, and the outer jacket is formed of a Chlorinated Polyethylene (CPE) synthetic rubber. 1. A robotic welding cable for a welding torch , said welding cable comprising:a flexible hose defining a hollow core for passage of welding wire and shielding gas;conductor strands arranged around said flexible hose; anda composite layered covering including electrical insulation covering said conductor strands, and an outer jacket surrounding said electrical insulation;said electrical insulation being formed of an Ethylene Propylene Diene Monomer (EPDM) synthetic rubber, and said outer jacket being formed of a Chlorinated Polyethylene (CPE) synthetic rubber.2. The robotic welding cable of claim 1 , wherein the electrical insulation provides electrical and thermal resistance claim 1 , and strength and flexibility over a range of temperatures.3. The robotic welding cable of claim 1 , wherein the outer jacket provides protection and flexibility.4. A method of assembling a robotic welding cable for use with a welding torch claim 1 , said method comprising:providing a flexible hose that defines a hollow core for passage of welding wire and shielding gas to said welding torch;arranging conductor strands around said flexible hose;covering said conductor strands with electrical insulation, said electrical insulation being formed of an Ethylene Propylene Diene Monomer (EPDM) synthetic rubber;surrounding said electrical insulation with an outer jacket, said outer jacket being formed of a Chlorinated Polyethylene (CPE) synthetic rubber. This ...

Stainless steel weldment and pad combined welding method

A stainless steel weldment and pad combined welding method includes steps of: (a) respectively processing and pairing butts of to-be-welded portions of two weldments, wherein, during pairing, inner walls of the two weldments are aligned at the same plane; the butts of the two weldments are opposed to form a V-shaped groove with an angle α; and between bottoms of the butts of the two weldments is kept a gap L of - mm; (b) providing a copper pad at the gap between the bottoms of the butts of the two weldments, wherein the copper pad closely attaches to the inner walls of the two weldments; (c) welding the V-shaped groove to form a root pass; and (d) removing the copper pad, and filling the root pass to be welded into a cover pass. 18-. (canceled)9. A stainless steel weldment and pad combined welding method , comprising steps of:(a) respectively processing and pairing butts of to-be-welded portions of two weldments, wherein, during pairing, inner walls of the two weldments are aligned at the same plane; the butts of the two weldments are opposed to form a V-shaped groove with an angle α; and between bottoms of the butts of the two weldments is kept a gap L of 2-4 mm;(b) providing a copper pad at the gap between the bottoms of the butts of the two weldments, wherein the copper pad closely attaches to the inner walls of the two weldments;(c) welding the V-shaped groove to form a root pass; and(d) removing the copper pad, and filling the root pass to be welded into a cover pass.10. The stainless steel weldment and pad combined welding method claim 9 , as recited in claim 9 , wherein the step (c) is executed in a manner of manual gas tungsten arc welding claim 9 , comprising steps of: igniting an arc by a nozzle of a welding gun at the butt of the weldment at a first side of the V-shaped groove to generate a weld pool; adding a welding wire to obtain molten drops for fusion with the weldment at the first side; swing the arc of the nozzle of the welding gun to the butt of ...

NON-FORGED HAMMERMILL HAMMER

Improved free-swinging hammermill hammer configurations are disclosed and described for comminution of materials such as grain and refuse. The hammer configurations of the present disclosure are adaptable to most hammer mill or grinders having free-swinging systems. The configurations as disclosed and claimed are non-forged and incorporate a saddle or hammer mouth. The merging of a hammer and saddle improves strength to reduce or maintain the weight of the hammer while increasing the amount of force delivered to the material to be comminuted. The improved configurations incorporate comminution edges having increased hardness for longer operational run times. The improved configurations improve installing, removing, and cleaning hammer components within the hammermill. The improved configurations may incorporate hammermill rod hole of varying shapes and sizes and saddles of varying shapes and sizes or the use of non-planar hammer bodies that have a recessed or protruding surface. 1. A non-planar hammer for use in a rotatable hammermill assembly comprising: a hammer body front surface;', 'a recessed surface;', 'a protruding surface located opposite the recessed surface;', 'a first end; and', 'a second end for contact and delivery of momentum to material to be comminuted, wherein said second end has a weld hardened edge; and, 'a non-planar hammer body comprisinga rod hole passing through the non-planar hammer body.2. The non-planar hammer of further comprising:two side contact edges opposite one another that partially cover the first and second hammer body edges;recessed edges between the recessed surface and the hammer body front surface and at least one other hammer body front surface; andprotruding edges between the protruding surface and at least two rear surfaces;wherein the recessed edges are located below the side contact edges and the protruding edges are located above the rod hole.3. The non-planar hammer of wherein the recessed edges and protruding edges ...

TUNGSTEN SUBMERGED ARC WELDING USING POWDERED FLUX

A tungsten submerged arc welding process wherein a non-consumable electrode () provides an arc () under a protective bed of flux powder (), thereby eliminating the need for an inert cover gas supply. The arc melts a feed material in the form of alloy powder () or filler wire () along with a surface of a substrate () to form a layer of cladding material () covered by a layer of slag (). The flux and slag function to shape the deposit, to control cooling, to scavenge contaminants and to shield the deposit from reaction with air, thereby facilitating the deposit of previously unweldable superalloy materials. 1. A method comprising;depositing a layer of powder comprising a powdered flux material onto a surface of a superalloy substrate;forming an arc within the layer of powder between a non-consumable electrode and the substrate;melting at least a portion of the flux material and a superalloy feed material with the arc to form a layer of cladding material covered by a layer of slag on the substrate; andallowing the cladding material to cool and to solidify under the layer of slag.2. The method of claim 1 , further comprising providing the feed material as powdered superalloy feed material within the layer of powder.3. The method of claim 2 , further comprising depositing the layer of powder as a layer of powdered superalloy feed material covered by a layer of the powdered flux material.4. The method of claim 2 , further comprising depositing the layer of powder as a mixed layer of powdered superalloy feed material and the powdered flux material.5. The method of claim 1 , further comprising depositing the layer of powder as a layer of composite particles comprising both superalloy and flux material.6. The method of claim 1 , further comprising providing the feed material in the form of solid or cored filler wire or strip.7. The method of claim 1 , further comprising providing the superalloy feed material to be a material outside a zone of weldability on a graph of ...

Rotary electric machine and stator manufacturing method

In order to provide a rotary electric machine with a reduced size and improved weldability, the stator of a rotary electric machine has a segment coil formed by bending rectangular conductors, and a stator core having slots in which the segment coil is inserted. As for the weld parts formed at the tips of the lead parts of the segment coil which protrude from the end face of the stator core and are twisted together, at least one of the weld beads aligned in the radial direction of the stator is an oblong body that is long in the radial direction of the stator core, and the angle formed by the longitudinal direction of the oblong body and the axial direction of the stator core is less than 90 degrees in a core cross section that includes the central axis of the stator core.

WELDING METHOD, WELDING NOZZLE AND WELDING DEVICE

A welding method in which an inert gas is supplied to the surface of an iron material from inside a cylindrical welding nozzle, and the surface of the iron material to which the inert gas is being supplied by the welding nozzle is heated, wherein oxygen in the atmosphere sucked by a drop in atmospheric pressure caused by the flow of the inert gas is introduced into a molten pool produced in the surface of the iron material. Consequently, it is possible to make the depth of penetration of the molten pool deeper by introducing oxygen into the molten pool and increase welding efficiency without preparing an additional oxygen supply source as in dual shield TIG welding. 1. A welding method , comprising:an inert gas supply step to supply inert gas to a surface of a metallic material from the inside of a cylinder welding nozzle;a heating step to heat the surface of the metallic material where the inert gas has been supplied by the welding nozzle in the inert gas supply step; andan oxygen introduction step to introduce oxygen in atmosphere that has been suctioned due to a reduction of pressure generated in association with a flow of the inert gas in the inert gas supply step to a molten pool generated on the surface the metallic material in the heating step.2. The welding method according to claim 1 , whereinthe welding nozzle comprises:a nozzle inner cylinder where the inert gas is distributed inside, anda nozzle outer cylinder where atmosphere that has been suctioned due to a reduction of pressure generated in association with a flow of the inert gas that is distributed within the nozzle inner cylinder is distributed to a gap with the nozzle inner cylinder while surrounding a side of the nozzle inner cylinder;in the inert gas supply step, the inert gas is supplied to the metallic material from the inside of the nozzle inner cylinder; andin the oxygen introduction step, while the atmosphere that has been suctioned due to a reduction of pressure generated in association ...

TIG Rod Feeder

It is an improved alternative device for welding, comprised of a stainless steel attachment for a cordless motorized driver, with optional extended accessory for greater adjustability. The driver includes a grooved rubber roller, whose rotation feeds a rod in a forward or backward motion, controlled by pressing the corresponding starter buttons for the driver's motor. The attachment is composed of a support ring bracket, connecting a fixed track, and adjustable track. The latter can be adjusted as desired, with the former used as support for stabilizing the rod as it is fed. The driver is designed to comfortably fit an adult hand, and power the feeding process by rotating the driver shaft, on which the rubber roller is fixed. It is an improvement for its ease of use, eliminating the restricted entry in the field, by allowing beginners to safely and efficiently weld.

FLANGE PARTIAL SECTION REPLACEMENT REPAIR

A method of repairing a casing for a gas turbine engine, wherein the casing has a wall extending generally axially, and between at least one radially extending flange, the radially extending flange being formed with a plurality of bolt holes, includes the steps of removing a portion of the flange including at least one bolt hole. The removed portion is associated with a defect and a remaining portion of the flange includes at least one non-removed bolt hole. A replacement portion is obtained to replace the removed portion. The replacement portion is secured in an opening left in the flange by the removed portion. A repaired gas turbine engine casing is also disclosed. 1. A method of repairing a casing for a gas turbine engine , wherein the casing has a wall extending generally axially , and between at least one radially extending flange , the radially extending flange being formed with a plurality of bolt holes , the method including the steps of:removing a portion of said flange including at least one bolt hole, the removed portion associated with a defect and a remaining portion of said flange including at least one non-removed bolt hole;obtaining a replacement portion to replace the removed portion; andsecuring said replacement portion in an opening left in said flange by said removed portion.2. The method as set forth in claim 1 , wherein the removed portion also includes the removal of a portion of said wall.3. The method as set forth in claim 2 , wherein the securement step is provided by welding the replacement portion into circumferential edges of the flange defining the removed portion.4. The method as set forth in claim 3 , wherein the securement step also includes the step of welding the replacement portion into a remaining portion of said wall.5. The method as set forth in claim 1 , wherein the securement step is provided by welding the replacement portion into circumferential edges of the flange defining the removed portion.6. The method as set forth in ...

Welding Type Power Supply For TIG Starts

A method and apparatus for TIG welding and starting a TIG welding process includes limiting the pulse width of a power circuit when a TIG start is being performed, and monitoring for the creation of a welding arc. After the welding arc has been detected the limiting of the pulse width is ended. 19-. (canceled)10. A welding type power supply , comprising a switched power circuit disposed to receive input power and to provide welding type power to a welding output , and a control input , and further comprising a controller , wherein the controller comprises:a control output connected to the control input;feedback input, connected to receive feedback indicative of the presence or absence of an arc;a pwm module connected to the control output;a pulse width limiting module connected to limit the pwm module, and responsive to the feedback input.11. The welding type power supply of claim 10 , further comprising a feedback circuit claim 10 , connected to the welding output and connected to the feedback input.12. The welding type power supply of claim 11 , further comprising a delay module claim 11 , wherein the pulse width limiting module is responsive to the delay module.13. The welding type power supply of claim 11 , wherein the delay module is responsive to the feedback input.14. The welding type power supply of claim 13 , wherein the delay module is a fixed time delay module.15. The welding type power supply of claim 14 , wherein the delay module is a one millisecond delay module.16. The welding type power supply of claim 13 , wherein the pulse width limiting module has a set point of an output voltage of about 10 volts.17. A welding type power supply claim 13 , comprising:a power circuit;means for limiting the pulse width of a power circuit when a TIG scratch start is being performed, connected to the power circuit;means for monitoring for the creation of a welding arc, connected to the means for limiting; andmeans for ending the limiting after the welding arc has been ...

METHOD AND SYSTEM TO USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR WELDING

A hot-wire and arc welding system and method. The system includes an arc welding power supply to supply a welding waveform. The welding waveform includes a plurality of welding pulses, with each welding pulse having a peak welding current level. The system also includes a hot-wire power supply to supply a heating waveform. The heating waveform includes a plurality of heating pulses, with each heating pulse having a peak heating current level. A controller, which is operatively connected to the arc welding power supply and the hot-wire power supply, synchronizes the plurality of welding pulses and the plurality of heating pulses such that at least a portion of the peak welding current level overlaps with at least a portion of the peak heating current level. 1. A hot-wire and arc welding system , the system comprising:an arc welding power supply to supply a welding waveform, the welding waveform including a plurality of welding pulses, each welding pulse having a peak welding current level;a welding torch to receive the welding current and create an arc between an electrode and a workpiece, the arc forming a molten puddle in the workpiece;a hot-wire power supply to supply a heating waveform, the heating waveform including a plurality of heating pulses, each heating pulse having a peak heating current level;a contact tube to receive the heating waveform, which resistance heats a filler wire, the contact tube to direct the filler wire to the molten puddle; anda controller operatively connected to the arc welding power supply and the hot-wire power supply, the controller to synchronize the plurality of welding pulses and the plurality of heating pulses such that at least a portion of the peak welding current level overlaps with at least a portion of the peak heating current level,wherein a welding pulse ramp rate from a background current level of each of the plurality of welding pulses to the respective peak welding current level is less than a heating pulse ramp rate ...

SYSTEM FOR AUTOMATED IN-PROCESS INSPECTION OF WELDS

A system and method detect weld defects in real time. Cameras capture images of a weld pool as well as ripple shape and fillet geometry. A processor receives the images and communicates with a database that stores correlated potential weld defects with images of a mock weld molten pool and images of a mock weld ripple shape and fillet geometry. The processor computes an aggregate probability that a weld position corresponding to the images captured by the cameras contains a defect based on the potential defects correlated in the database. 1. A method of detecting weld defects in real time , the method comprising: (1) using a welding torch, welding a first part to a second part,', '(2) a first camera capturing images of a weld molten pool,', '(3) a second camera capturing images of a weld ripple shape and fillet geometry,', '(4) correlating the images captured in (2) and (3) with a weld position,', '(5) performing weld testing on a weld resulting from the welding in (1) and characterizing any defects in the weld, and', '(6) correlating the characterized defects with deviations in the images captured in (2) and (3); and, '(a) conducting a mock-up welding operation in a learning phase including,'}(b) the first camera capturing images of a production weld molten pool during a production weld operation;(c) the second camera capturing images of a product weld ripple shape and fillet geometry during the production weld operation; and(d) processing the images captured in (b) and (c) and computing an aggregate probability that a weld position corresponding to the images captured in (b) and (c) contains a defect based on the characterized defects correlated in (6).2. A method according to claim 1 , further comprising claim 1 , after step (d) claim 1 , outputting an alert or disabling the production weld operation based on the aggregate probability.3. A method according to claim 1 , wherein step (a)(6) is practiced by parameterizing a shape of the weld molten pool and the weld ...

METHOD OF MAKING A BALL VALVE

A refrigeration valve having a ball valve assembly and a hermetic seal between the body and bonnet is provided. Such a refrigeration valve allows for a generally straight flow path for the associated fluid. 1. A method of making a hermetically sealed refrigeration service ball valve comprising the steps of:providing refrigeration ball valve fitting components including a body, a bonnet, a ball valve member, and a number of ball seals, said fitting body defining a ball valve chamber, said ball valve member corresponding to said fitting body ball valve chamber;positioning a first ball seal in said fitting body ball valve chamber;positioning said ball valve member in said fitting body ball valve chamber;positioning a second ball seal in said fitting body ball valve chamber;coupling said fitting body and said fitting bonnet at a circular interface; andcoupling said fitting body and said fitting bonnet by a metal coupling.2. The method of wherein said step of providing refrigeration ball valve fitting components includes the step of providing a fitting body and a fitting bonnet structured to have a circular interface spaced between about 0.34 and 0.54 from the outer surface of said second ball seal when said second ball seal is disposed in said fitting body ball valve chamber.3. The method of wherein said step of providing refrigeration ball valve fitting components includes the step of providing a fitting body and a fitting bonnet structured to have a circular interface spaced about 0.44 from the outer surface of said second ball seal when said second ball seal is disposed in said fitting body ball valve chamber.4. The method of wherein said step of coupling said fitting body and said fitting bonnet by a metal coupling includes the step of applying heat to said circular interface with a welding dwell time of about eighteen seconds.5. The method of wherein said step of coupling said fitting body and said fitting bonnet by a metal coupling includes the step of utilizing a ...

TIG WELDING DEVICE

Through the present invention, the load of a torch () applied to a welding workpiece (W) in a touch start method is reduced, and stability is significantly enhanced. A welding head () has a rigid straight-advancing movable part (), an elevator drive tower () for moving the straight-advancing movable part () straight forward in the vertical direction, and a torch () mounted on the straight-advancing movable part () so as to be able to move in the vertical direction. One end part of a balance arm () rotatably attached to a multi-purpose support part () of the straight-advancing movable part () is connected to a torch body (), and a balance weight () is attached to the other end part of the balance arm (). 1. A TIG welding device comprising:a cylindrical torch body removably attaching and holding a torch electrode therein;a welding power supply for feeding a current to flow in a closed circuit including the torch electrode and a welding workpiece either for current application between a tip of the torch electrode and the welding workpiece or for generation of arc in a touch start system;a linear movable part movable in a vertical direction;a driving unit for moving the linear movable part in a straight line; anda balance arm attached through a fulcrum to the linear movable part so as to be rotatable in a vertical plane, the balance arm having one end portion which is coupled to the torch body and an opposite end portion to which a balance weight is attached.2. The TIG welding device in accordance with claim 1 , wherein a weight moment on the balance weight side is set to be less than a weight moment on the torch body side with respect to the fulcrum.3. The TIG welding device in accordance with claim 1 , comprising:an external terminal attached to a lateral surface or an upper end of the torch body and electrically connected to the torch electrode through a conducting path in the torch body;a current relay provided at the linear movable part, the current relay including ...

METHOD FOR TUNGSTEN INERT GAS WELDING OR PLASMA WELDING

A method and gas mixture of argon, nitrogen and carbon dioxide for tungsten inert gas welding or plasma welding is described wherein the gas mixture is a protective gas for tungsten inert gas welding or an outer gas for plasma welding. The method is particularly useful for welding stainless steels and/or duplex steels. 1. A method for tungsten inert gas welding or plasma welding , characterized in that a gas mixture comprising argon , nitrogen and COis used as the protective gas during tungsten inert gas welding , or as the outer gas during plasma welding.2. The method according to claim 1 , characterized in that the tungsten inert gas welding or plasma welding is for welding stainless steels or duplex steels.3. The method according to claim 2 , wherein stainless steels and/or duplex steels are subjected to low-ferrite welding.4. The method according to claim 1 , wherein the gas mixture contains between 1% and 5% nitrogen and between 0.3% and 0.7% CO.5. The method according to claim 4 , wherein the gas mixture contains 3% nitrogen.6. The method according to claim 1 , wherein the gas mixture further comprising hydrogen.7. The method according to claim 6 , wherein the gas mixture contains up to 10% hydrogen.8. The method according to wherein the gas mixture contains between 1% and 5% hydrogen.9. The method according to claim 1 , wherein the gas mixture further comprising helium.10. The method according to claim 9 , wherein the gas mixture contains up to 50% helium.11. The method according to claim 10 , wherein the gas mixture contains between 10% and 50% helium.12. The method according to claim 11 , wherein the gas mixture contains 25% helium.13. A gas mixture for use as a protective gas for tungsten inert gas welding or as the outer gas for plasma welding claim 11 , characterized in that the gas mixture is a mixture comprising argon claim 11 , nitrogen and CO.14. The gas mixture according to claim 13 , characterized in that the tungsten inert gas welding or plasma ...

Welding gas compositions and method for use

The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.

TIG WELDING METHOD OF FERRITE STAINLESS STEEL SHEET

A TIG welding method for a ferrite stainless steel sheet is disclosed, wherein a first shield gas is used wherein the gas is a mixture of argon gas and helium gas, 20 to 90% by volume of helium is included in the mixture, and the flow rate Sof the first shield gas is set in a range of 0.175 m/sec≦S≦1.75 m/sec, and a second shield gas is used wherein the gas is argon gas, and the flow rate Sof the second shield gas is set in a range of 0.05 m/sec≦S≦1.51 m/sec. 1. A TIG welding method for a ferrite stainless steel sheet , whereinthe method uses a welding torch, andthe welding torch includes:an electrode which has a tip which generates arc;a first shield nozzle which surrounds the electrode; anda second shield nozzle provided at the outside of the first shield nozzle; whereina first shield gas is supplied from the inside of the first shield nozzle toward the tip of the electrode,a second shield gas is supplied from an area between the first shield nozzle and the second shield nozzle toward the tip of the electrode;{'sub': 1', '1, 'the first shield gas is a mixed gas which is a mixture of argon gas and helium gas, wherein 20 to 90% by volume of helium is included in the mixture, and the flow rate Sof the first shield gas is set to 0.175 m/sec≦S≦1.75 m/sec, and'}{'sub': 2', '2, 'the second shield gas is argon gas, and the flow rate Sof the second shield gas is set to 0.05 m/sec≦S≦1.51 m/sec.'}2. The TIG welding method for a ferrite stainless steel sheet according to claim 1 , wherein the flow rate Sis set to 0.35 m/sec≦S≦1.58 m/sec claim 1 , and the flow rate Sis set to 0.24 m/sec≦S≦1.21 m/sec.3. The TIG welding method for a ferrite stainless steel sheet according to claim 1 , wherein the mixture includes 25 to 75% by volume of helium gas.4. The TIG welding method for a ferrite stainless steel sheet according to claim 1 , wherein the electrode is a tungsten electrode.5. The TIG welding method for a ferrite stainless steel sheet according to claim 1 , wherein the first ...

WELDING METHOD AND ELECTRICAL DEVICE

An object of the present invention is to suppress blow holes in welding using tough pitch copper. 1. A welding method comprising: a first step of heating at least a portion of a first conductor and a second conductor containing copper; and a second step of adding a filler metal containing phosphorus while melting the first conductor and the second conductor so that a phosphorus content rate in a welded portion at which an end portion of the first conductor and an end portion of the second conductor are connected to each other is equal to or more than 0.1%.2. The welding method according to claim 1 , whereinin the second step, the filler metal is added so that the phosphorus content rate in the welded portion is equal to or more than 0.2%.3. The welding method according to claim 1 , whereinin the second step, the filler metal is added so that the phosphorus content rate in the welded portion is 0.5% to 1.5%.4. The welding method according to claim 1 , whereinin the first step, the first conductor and the second conductor are heated by arc discharge generated by a current flowing between the first conductor and the second conductor, and an electrode, andin the second step, when the filler metal is added, a current value of the current is temporally changed to agitate the filler metal in the melted first conductor and the melted second conductor.5. The welding method according to claim 1 , whereinin the first step, the first conductor and the second conductor are heated by arc discharge generated by a current flowing between the first conductor and the second conductor, and an electrode, andin the second step, when the filler metal is added, a current value of the current is made constant to perform formation so that the phosphorus content rates in the melted first conductor and the melted second conductor are different from each other.6. An electrical device comprising:at least one of a first conductor and a second conductor; andan electrical circuit connected to the ...