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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13. Отображено 13.
02-05-2023 дата публикации

Material-gas separating valve

Номер: CN116040324A
Принадлежит:

The invention discloses a material-gas separation valve, which relates to the field of pneumatic powder conveying and comprises a valve body, a first channel and a second channel are arranged in the valve body, the first channel is communicated with the second channel, a T-shaped channel structure is formed after the first channel is communicated with the second channel, and a material-gas separation plate is eccentrically arranged in the second channel. The second channel is divided into a discharging channel and an airflow channel by the material-gas partition plate; a rotatable valve element is arranged in the valve body, and when the valve element rotates to the horizontal state, the outer edge of the valve element makes contact with the inner wall of the upper port of the second channel. When the valve element rotates to the vertical state, the outer edge of the upper portion of the valve element makes contact with the inner wall of the first channel, and the outer edge of the lower ...

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28-07-2023 дата публикации

On-line detection device for temperature movement of square plansifter

Номер: CN116499780A
Принадлежит:

The invention provides a square plansifter temperature motion online detection device which comprises a square plansifter, a motion detection module, a temperature detection module, an anti-explosion junction box, an anti-explosion electric control module and a central control room touch screen. The motion detection module and the temperature detection module are connected with the explosion-proof junction box, the explosion-proof junction box is connected with the explosion-proof electric control module, and the explosion-proof electric control module is connected with the central control room touch screen. The square plansifter temperature and motion online detection device is simple in structure, convenient to implement, capable of achieving temperature and motion detection of a plurality of square plansifter bodies, high in detection precision and capable of displaying detection information of the square plansifter bodies, and the use safety of the square plansifter bodies is improved ...

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19-11-2014 дата публикации

Analysis method for measuring large-grained silicon steel texture

Номер: CN104155323A
Принадлежит:

The invention discloses an analysis method for measuring a large-grained silicon steel texture. The analysis method comprises the following steps: I, preparing a to-be-tested electron backscatter diffraction sample from a silicon steel plate; II, cutting a to-be-tested area of the to-be-tested electron backscatter diffraction sample, and distinguishing each crystalline grain in the to-be-tested area according to a crystal boundary; III, calculating the area Am of each crystalline grain and the total area A of the total to-be-tested areas of the sample; IV, carrying out no-texturing treatment, and calculating a ratio A0 of each crystalline grain in the to-be-tested area; V, testing an orientation (hkl) of each crystalline grain in an electron backscatter diffraction way and acquiring an absolute value; VI, dividing Am by A and then by A0 to obtain a relative pole density P(hkl); and VII, marking the relative pole density P(HKL) on a position on a corresponding crystal face in an inverse ...

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07-05-2014 дата публикации

Grinding roller sand blaster, and control system thereof

Номер: CN103770010A
Принадлежит:

The invention discloses a control system thereof of a grinding roller sand blaster. The grinding roller sand blaster comprises a machine box, and a grinding roller and a spray gun both arranged in the machine box; the machine box is provided with a machine box door; the grinding roller sand blaster also comprises a grinding roller drive motor (1), a spray gun drive motor (2) and a spray gun control valve (3); the control system also comprises a controller (4); the controller (4) is used for controlling the grinding roller drive motor (1), the spray gun drive motor (2) and the spray gun control valve (3) respectively. The invention also discloses the grinding roller sand blaster. According to the grinding roller sand blaster and the control system thereof, the controller is used for controlling the grinding roller sand blaster simply and conveniently, using of components is reduced effectively, circuit layout is concise and clear, space occupation is lower, using and maintenance both are ...

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25-04-2023 дата публикации

Quick dismounting and mounting device for grinding unit of flour mill

Номер: CN115999694A
Принадлежит:

The invention discloses a quick disassembly and assembly device for a grinding unit of a flour mill, which relates to the field of food processing equipment and comprises a flour mill body, the grinding unit is arranged on the flour mill body, and the grinding unit is connected with the flour mill body through two grinding unit cross beams arranged side by side at the bottom. A guide rail is arranged below each grinding unit cross beam side by side, and the guide rails are fixed on the pulverizer body; each grinding unit cross beam is provided with two eccentric displacement rolling units at intervals in the length direction of the grinding unit cross beam. By rotating the displacement rolling unit, after the grinding unit is integrally lifted through the counter-acting force of the guide rail by utilizing the eccentric structure, the grinding unit is automatically positioned to keep a lifting gap, equivalently, four liftable wheels are mounted at the bottom of the grinding unit, and the ...

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07-05-2014 дата публикации

Adjusting and locking device of roll clearance of flour mill and grinding rollers of flour mill

Номер: CN103769269A
Принадлежит:

The invention discloses an adjusting and locking device of roll clearance of a flour mill and grinding rollers of the flour mill. The adjusting and locking device comprises a roll clearance adjusting screw rod (3) and an adjusting screw nut (4); the roll clearance adjusting screw rod (3) is connected with a fast roller bearing pedestal (1) and a slow roller bearing pedestal (2); the adjusting screw nut (4) is arranged on the roll clearance adjusting screw rod (3) which is arranged on the outer side of the slow roller bearing pedestal (2). The invention also provides the flour mill. According to the adjusting and locking device, the adjusting screw nut is arranged on the outer side of the slow roller bearing pedestal, so that operation space on the adjusting screw nut is enlarged, danger caused by collision and interference with other parts in operation processes is avoided, the adjusting screw nut can be adjusted using tools, labour is saved, and operation is convenient.

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16-09-2015 дата публикации

Method for measuring small-size wire rod steel cross section inverse pole figure

Номер: CN104914120A
Принадлежит:

The invention discloses a method for measuring a small-size wire rod steel cross section inverse pole figure. The method comprises the following steps: tightly stacking and fixing multiple pieces of small-size wire rod steel into a whole in parallel, and cutting, milling and polishing the steel perpendicular to the axes, thereby obtaining a to-be-measured sample with a relatively large size to be used for measurement; calculating the effective detection area rate K effective on the detection surface; respectively obtaining diffraction patterns of the to-be-measured sample and the standard sample by virtue of X-ray diffraction, and respectively solving the strength I {hkl} sample and I {hkl} standard sample of each crystal face; taking the rate of the I {hkl} sample and I {hkl} standard sample on a certain crystal face (hkl) as a pole density value of the crystal face of the sample, and dividing by the effective detection area rate K effective, thereby obtaining the real pole density value ...

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24-09-2014 дата публикации

Method for measuring inverse pole figure by inclining and rotating test sample

Номер: CN104062311A
Принадлежит:

The invention discloses a method for measuring an inverse pole figure by inclining and rotating a test sample. The method comprises the following steps of determining peak positions of diffraction peaks of the test sample and a standard sample and back bottom positions of the left side and the right side of the peaks; arranging the test sample and a detector at initial positions; obtaining the intensity and the back bottom intensity of all the diffraction peaks of the test sample under different inclination angles during rotation, calculating the net intensity of the diffraction peaks to obtain the net intensity of the diffraction peaks of the standard sample, calculating a ratio of the net intensity of the diffraction peaks of the test sample to the net intensity of the diffraction peaks of the standard sample under the different inclination angles, and calculating an average value of all the ratios to obtain an extreme density value of each diffraction peak; and marking the extreme density ...

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30-07-2014 дата публикации

Texture measuring method of large grain oriented silicon iron

Номер: CN103954638A
Принадлежит:

The invention discloses a texture measuring method of large grain oriented silicon iron. The texture measuring method comprises following steps: 1) after secondary recrystallization annealing, a grain oriented silicon iron sample is collected via cutting, and crystalline grain boundary lines of the grain oriented silicon iron sample are marked and numbered; 2) an imagine analyzer is used for measuring the area of each crystalline grain in an imagine; 3) electron back-scattered diffraction is adopted so as to determine orientation of each crystalline grain in the grain oriented silicon iron sample, and orientation deviation angle of each crystalline grain with ideal Goss grain is obtained via calculation; 4) the area of each crystalline grain is divided by the area of the whole grain oriented silicon iron sample, and an obtained result is taken as the weighted value of the crystalline grain, and is multiplied by the value of the orientation deviation angle of the crystalline grain, an obtained ...

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23-07-2014 дата публикации

X-ray phase analysis method for metal material

Номер: CN103940838A
Принадлежит:

The invention relates to an X-ray phase analysis method for a metal material. The method comprises the following steps: respectively carrying out rotary measurement of diffracted intensity on a sample and a guide sample of the same ingredient, carrying out rotary or non-rotary measurement of the diffracted intensity on an untextured guide sample, so as to obtain an Ii(hkl) value, Ij(hkl) value and an Ir(hkl) value; carrying out texture correction on the diffracted intensity, respectively computing the axial densities Pi(hkl) and Pj(hkl) of the sample and the guide sample {hkl} of the same ingredient; further respectively computing the diffracted intensities Ii(hkl) (c) and Ij(hkl) (c) of crystalline grains of the sample and the guide sample of the same ingredient after texture correction; and inserting the Ii(hkl) (c) and the Ij(hkl) (c) into a formula Xi=Ii(hkl) (c)/Ij(hkl) (c) Xj, so as to compute the phase content of the sample. The fixed measurement mode of the diffracted intensities ...

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24-09-2014 дата публикации

Method for precisely measuring residual austenite content of steel and iron materials

Номер: CN104062310A
Принадлежит:

The invention discloses a method for precisely measuring the residual austenite content of steel and iron materials. The method comprises the following steps of determining peak positions of diffraction peaks of a test sample and a standard sample and back bottom positions of the left side and the right side of the peaks; putting the test sample on a shaft 1theta, arranging a detector on a shaft 2theta, and positioning the shaft 1theta and the shaft 2theta at zero degree; obtaining the intensity and the back bottom intensity of the diffraction peak of the test sample; calculating the net intensity of the diffraction peak of the test sample; calculating the content of residual austenite in the test sample under the same inclination angle; averaging all the calculated contents of the residual austenites under the same inclination angle to obtain an average value serving as a final result of the residual austenite content of the test sample. According to the method, the test sample is inclined ...

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23-07-2014 дата публикации

Magnesium-calcium spinel refractory brick and preparation method thereof

Номер: CN103936435A
Принадлежит:

The invention discloses a magnesium-calcium spinel refractory brick and a preparation method thereof. The magnesium-calcium spinel refractory brick is prepared mainly from 86-95% by weight of magnesium-calcium clinker, 4-9% by weight of magnesia-alumina spinel and 1-5% by weight of paraffin by performing mixing, molding and high-temperature calcining. The specific preparation method of the magnesium-calcium spinel refractory brick comprises the following steps: a) crushing raw materials, mainly independently crushing magnesium-calcium clinker and magnesia-alumina spinel, or on the basis of purchasing powder or granular magnesia-alumina spinel, only independently crushing magnesium-calcium clinker; b) mixing raw materials, mixing magnesium-calcium clinker and magnesia-alumina spinel according to the ratio in a heating state, wherein the heating temperature is 75-85 DEG C, then fully stirring and mixing, then adding paraffin according to the ratio, fully stirring, and cooling to 60-70 DEG ...

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18-04-2023 дата публикации

Cantilever type flour mill tensioning device

Номер: CN115978148A
Принадлежит:

The invention discloses a cantilever type flour mill tensioning device, and belongs to the field of milling equipment, the cantilever type flour mill tensioning device comprises a tensioning seat, the tensioning seat is arranged on a side rack, the cantilever type flour mill tensioning device comprises a swing frame, a supporting shaft is arranged on the tensioning seat, the swing frame is rotatably connected to the supporting shaft through a sliding bearing, a tensioning wheel shaft is arranged on the upper portion of the swing frame, and a bearing is arranged on the outer side of the tensioning wheel shaft; a tensioning wheel is arranged on the outer side of the bearing, a first elastic check ring is arranged at the end, away from the swing frame, of a tensioning wheel shaft, and a pressing mechanism used for adjusting the deflection angle of the swing frame is arranged between the tensioning base and the swing frame. A double-lug structure of the swing frame is changed into a cantilever ...

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