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

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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 22. Отображено 22.
23-05-2012 дата публикации

Q345q-series super-thick bridge steel plate and production method thereof

Номер: CN0101880824B
Автор: SHUCHENG ZHU, SHAOPU XU, GUANJUN CUI, DI ZHAO, ZHAOHAI GAO, DONG YANG, HONGYANG LI, SA YU, BAIMING PANG, SHAOHUI ZHANG, YONGQI YUAN, WENHUI LEI, ZHENGLEI TANG, WENZHEN HUANG, ZHIQIANG LI, ZHAO XU, KALI PENG, FAN XU, ZHU SHUCHENG, XU SHAOPU, CUI GUANJUN, ZHAO DI, GAO ZHAOHAI, YANG DONG, LI HONGYANG, YU SA, PANG BAIMING, ZHANG SHAOHUI, YUAN YONGQI, LEI WENHUI, TANG ZHENGLEI, HUANG WENZHEN, LI ZHIQIANG, XU ZHAO, PENG KALI, XU FAN
Принадлежит:

The invention discloses a Q345q-series super-thick guaranteed performance and flaw detection bridge steel plate comprising the following chemical components in percentage by mass: 0.08-0.16 percent of C, 0.20-0.50 percent of Si, 1.15-1.60 percent of Mn, not more than 0.020 percent of P, not more than 0.010 percent of S, not more than 0.12 percent of microalloyed element (V+Nb+Ti+Ni), 0.010-0.050 percent of AlS and the balance of Fe and residual elements; and carbon equivalent is not more than 0.43. The invention also discloses a production method of the steel plate, comprising the steps of rolling, cooling, straightening, cooling in pile and thermal treatment. In the rolling, the cooling and the straightening, the 130 mm super-thick Q345qD(E) steel plate is successfully developed in the production line of a converter, die casting, mill rolling and normalization thermal treatment through carrying out reasonable composition design, die casting, TMCP (Thermal Mechanical Control Process) rolling ...

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Номер записи: 1
23-07-2020 дата публикации

Verfahren zum Entschlacken während der Herstellung eines Stahls mit ultraniedrigem Phosphorgehalt und Verfahren zur Herstellung eines Stahls mit ultraniedrigem Phosphorgehalt

Номер: DE112019000054T5
Автор: ZHU SHUCHENG, ZHAO HU, XU SHAOPU, LI ZHONGBO, LI HONGYANG, YANG YANG, TANG ZHENGLEI, ZHANG TAO, LIU QINGBO, ZHANG ZHANJIE, YUAN JIHENG, YU SA, KANG WENJU, CHEN XI, ZHANG SHUAI, LI BO, DU ZHIQUAN, ZHAO DI, LI LIANG, JIANG PENG, XUE YANSHENG, FU KEYI, WANG YINGJIE, YUAN YONGQI, DONG ZHENZHEN, PANG BAIMING, ZHENG HAIMING, CHEN LIANG, QUAN WEIBO, ZHU XIANXING, YUAN GAOJIAN, YANG CHUN, WANG YONG, BAI YIBO, LI GAZI, LV YULIANG, WANG XIBIN, REN YI, Zhu, Shucheng, Zhao, Hu, Xu, Shaopu, Li, Zhongbo, Li, Hongyang, Yang, Yang, Tang, Zhenglei, Zhang, Tao, Liu, Qingbo, Zhang, Zhanjie, Yuan, Jiheng, Yu, Sa, Kang, Wenju, Chen, Xi, Zhang, Shuai, Li, Bo, Du, Zhiquan, Zhao, Di, Li, Liang, Jiang, Peng, Xue, Yansheng, Fu, Keyi, Wang, Yingjie, Yuan, Yongqi, Dong, Zhenzhen, Pang, Baiming, Zheng, Haiming, Chen, Liang, Quan, Weibo, Zhu, Xianxing, Yuan, Gaojian, Yang, Chun, Wang, Yong, Bai, Yibo, Li, Gazi, LV, Yuliang, Wang, Xibin, Ren, Yi
Принадлежит: NANYANG HANYE SPECIAL STEEL CO, NANYANG HANYE SPECIAL STEEL CO., LTD

Bereitgestellt ist ein Verfahren zum Entschlacken während der Herstellung eines Stahls mit ultraniedrigem Phosphorgehalt, das das technische Gebiet vom Eisen- und Stahlschmelzen betrifft, wobei eine Stahlschmelze zunächst mit Kalk gemischt wird, um eine basische Schlacke zu bilden; Sauerstoff dann zum Durchblasfrischen eingesetzt wird, um die Oxidierbarkeit der basischen Schlacke zu verbessern; und ein kohlenstoffhaltiges Reduktionsmittel schließlich zugegeben wird, wobei Phosphate beim Freigeben einer großen Menge von Kohlenmonoxidgas auf Grund der Oxidation von Kohlenstoff eingefangen werden, so dass die basische Schlacke fast schäumt und durch die Öffnung der Stahlschmelze austritt, wodurch es keine Bedingung für die Rephosphorisierung von Phosphor zurück in die Stahlschmelze mehr gibt. Bei diesem Verfahren zum Entschlacken werden einfache und erleichterte Bedienung ermöglicht, vergleichsweise niedrige Anforderungen werden an die Einrichtungen gestellt, und eine bessere Entphosphorungswirkung ...

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Номер записи: 2
07-04-2023 дата публикации

Steel 07MnMoVR for oil storage tank and production method of steel 07MnMoVR

Номер: CN115927953A
Автор: LI ZHONGBO, YANG YANG, ZHU SHUCHENG, XU SHAOPU, LIU QINGBO, KANG WENJU, TANG ZHENGLEI, ZHENG HAIMING, XUE YANSHENG, QUAN WEIBO, YUAN YONGQI, BAI YIBO, YANG CHUN, WANG YONG, ZHU XIANXING, YUAN GAOJIAN, REN YI
Принадлежит:

The invention belongs to the field of medium plate production, and particularly relates to steel 07MnMoVR for an oil storage tank and a production method of the steel 07MnMoVR, the thickness of the steel plate is smaller than or equal to 60 mm, and the steel plate comprises the following chemical components in percentage by mass (wt% in unit): 0.07-0.09% of C, 0.15-0.25% of Si, 1.40-1.50% of Mn, smaller than or equal to 0.015% of P, smaller than or equal to 0.005% of S, 0.015-0.040% of Als, 0.025-0.035% of Nb, 0.2-0.3% of Cr, 0.12-0.22% of Mo, 0.03-0.04% of V and the balance of Fe and residual elements. Critical normalizing and intermittent cooling are adopted to replace a conventional quenching and tempering process, the whole technological process is shortened, the production cost is reduced, the same effect after heat treatment is achieved, it can be guaranteed that the yield strength of the steel plate is larger than or equal to 490 MPa, the tensile strength is 610-730 MPa, the ductility ...

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Номер записи: 3
02-04-2014 дата публикации

Weather-proof structural steel S355K2W thick plate and production method

Номер: CN103695787A
Автор: ZHU SHUCHENG, YUAN YONGQI, XU SHAOPU, LI ZHONGBO, CUI GUANJUN, TANG ZHENGLEI, KANG WENJU
Принадлежит:

The invention discloses a 60-120mm improved weather-proof structural steel S355K2W thick plate and a production method thereof. The weather-proof structural steel S355K2W thick plate comprises the following chemical components by mass percent: 0.08-0.15% of C, 0.20-0.45% of Si, 1.20-1.45% of Mn, less than or equal to 0.018% of P, less than or equal to 0.007% of S, 0.015-0.050% of Als, less than or equal to 0.15% of Nb+V+Ti, 0.45-0.70% of Cr, 0.30-0.50% of Cu, and the balance of Fe and residual elements. A technological process of the weather-proof structural steel S355K2W thick plate comprises the steps of high-quality molten iron and KR molten iron pretreatment, a 100/120t top-bottom combined blowing converter, LF (ladle furnace) refining, vacuum degassing treatment, casting blank pile cooling for 24-60h, a pusher type heating furnace, a 3800m rolling mill, ACC (accelerated) laminar cooling, an 11-roll thermal straightener, pile cooling, finishing, external inspection, fault detection ...

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Номер записи: 4
18-05-2011 дата публикации

Method for manufacturing extremely thick flaw detection steel plate with low alloy content and high strength

Номер: CN0102061368A
Автор: TAO ZHANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, DONG YANG, ZHENGLEI TANG, HONGYANG LI, WENJU KANG, ZHAO XU, LIN PANG, YIBO BAI, ZHANG TAO, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, YANG DONG, TANG ZHENGLEI, LI HONGYANG, KANG WENJU, XU ZHAO, PANG LIN, BAI YIBO
Принадлежит:

The invention disclose a method for manufacturing a extremely thick flaw detection steel plate with low alloy content and high strength, comprising the following steps of: a, heating for the first time; b, rolling for the first time; c, cooling in piles for the first time; d, heating for the second time; e, rolling for the second time, f, cooling in piles; g, finishing; h, thermally treating; and i, testing and putting in storage. In the extremely thick flaw detection steel plate with low alloy content and high strength, which is manufactured through the method disclosed by the invention, the yield strength is controlled in 285-330MPa, and the average yield strength reaches 310MPa, which exceeds 55MPa compared with the standard yield strength; the tensile strength is controlled in 495-550MPa, and the average tensile strength reaches 507MPa, which is 57MPa greater than the standard tensile strength; the elongation is controlled in 25%-29%, and the average elongation reaches 26%, which is ...

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Номер записи: 5
01-06-2011 дата публикации

High-tensile quenched and tempered steel plate for large-thickness structures and production method thereof

Номер: CN0102080185A
Автор: ZHENGLEI TANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, DONG YANG, YAN B, HONGYANG LI, TAO ZHANG, ZHAO XU, LIN PANG, XIANXING ZHU, TANG ZHENGLEI, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, YANG DONG, LI HONGYANG, ZHANG TAO, XU ZHAO, PANG LIN, ZHU XIANXING
Принадлежит:

The invention discloses a high-tensile quenched and tempered steel plate for large-thickness structures and a production method thereof, wherein the high-tensile quenched and tempered steel plate comprises the following chemical compositions in percentage by weight: less than or equal to 0.19% of C, less than or equal to 0.50% of Si, 1.00-1.60% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, less than or equal to 0.20% of microalloying elements (Nb+V+Ti+Ni), less than or equal to 0.050% of Als, and the balance of Fe and residual elements. By reasonably taking a chemical composition design on composite multicomponent microalloying elements and adopting an LF+VD (ladle refining + vacuum degassing)process, the purity of the steel plate is ensured, and the sum of levels of various inclusions is not more than 3.0; and by utilizing a thermo mechanical control process and adopting normalizing treatment, the grain fineness number of the steel plate reaches level 9.0 ...

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Номер записи: 6
08-04-2015 дата публикации

Continuously cast 140-mm thick plate Q345E and production method thereof

Номер: CN104498826A
Автор: ZHU SHUCHENG, ZHANG QIANG, XU SHAOPU, KANG WENJU, TANG ZHENGLEI
Принадлежит:

The invention discloses a continuously cast 140-mm thick plate Q345E and a production method thereof. The continuously cast 140-mm thick plate Q345E comprises the following chemical components in percentage by weight: 0.10%-0.15% of C, 0.15%-0.35% of Si, 1.2%-1.45% of Mn, less than or equal to 0.010 of P, less than or equal to 0.003 of S, 0.020%-0.050% of Als, 0.020%-0.040% of Nb, 0.010%-0.020% of Ti and the balance of Fe and residual elements. According to the production method, by virtue of processes of KR hot metal pretreatment, converter smelting, argon blowing treatment, LF refining and VD refining, harmful elements, such as P and S which are adverse to the toughness of materials, of types of steel are strictly controlled, so that the purity of molten steel can be guaranteed, and the internal quality of the steel is improved; by utilizing relatively low heating temperature, the excessive growth of austenite crystals in the heating process can be avoided; in a stack cooling process ...

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Номер записи: 7
07-04-2023 дата публикации

Nuclear power steel plate for fixing and shielding reactor top and production process of nuclear power steel plate

Номер: CN115927963A
Автор: ZHU SHUCHENG, LI LIANG, LI ZHONGBO, YANG HU, WANG LIUYI, KANG WENJU, ZHANG TAO, DING JIAN, TANG ZHENGLEI, YANG CHUN, BAI YIBO, ZHU XIANXING, REN YI
Принадлежит:

The invention discloses nuclear power steel for fixing and shielding a reactor top, the thickness of the nuclear power steel is 100-130 mm, and the nuclear power steel comprises the following chemical components in percentage by mass: 0.14-0.16% of C, 0.15-0.20% of Si, 1.40-1.50% of Mn, less than or equal to 0.012% of P, less than or equal to 0.003% of S, 0.010-0.020% of Nb, 0.23-0.26% of Cr, 0.024-0.028% of V, 0.22-0.25% of Ni, 0.03-0.04% of Al, less than or equal to 0.005% of Ti, less than or equal to 0.0005% of B and the balance of Fe and residual elements. The production process comprises the production processes of converter smelting, LF refining, VD vacuum degassing, water-cooling die casting, steel ingot heating, rolling, stack cooling, heat treatment and the like, the obtained steel plate has a uniform and fine bainite + ferrite + pearlite structure and is excellent in comprehensive performance, after 595-620 DEG C * 17 h postweld heat treatment, the high-temperature tensile strength ...

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Номер записи: 8
18-05-2011 дата публикации

Heating-processing technology for improving mechanical property of high-intensity extra-thick plate

Номер: CN0102061373A
Автор: ZHENGLEI TANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, DONG YANG, XIANXING ZHU, HONGYANG LI, TAO ZHANG, ZHAO XU, LIN PANG, XIAOJUAN BIE, TANG ZHENGLEI, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, YANG DONG, ZHU XIANXING, LI HONGYANG, ZHANG TAO, XU ZHAO, PANG LIN, BIE XIAOJUAN
Принадлежит:

The invention provides a heating-processing technology for improving the mechanical property of a high-intensity extra-thick plate, and the heating-processing technology can be used for improving the mechanical property of a normalizing high-intensity extra-thick plate and improving the normalizing qualification rate of the extra-thick plate. A water-cooling working procedure is added in the normalizing process of the extra-thick plate and is used for replacing air cooling for normalizing; the normalizing cooling speed is quickened, the phase-transition temperature of a steel plate is lowered, and the growth of microalloy element carbonitride can be inhibited, so that a small quantity of ferrite and a large quantity of thinner perlite structure can be obtained, and intensity, plasticity, low temperature brittleness and the like can be improved so as to guarantee the intensity of the steel plate and improve the qualification rate of the steel plate.

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Номер записи: 9
10-11-2010 дата публикации

Q345q-series super-thick bridge steel plate and production method thereof

Номер: CN0101880824A
Автор: SHUCHENG ZHU, SHAOPU XU, GUANJUN CUI, DI ZHAO, ZHAOHAI GAO, DONG YANG, HONGYANG LI, SA YU, BAIMING PANG, SHAOHUI ZHANG, YONGQI YUAN, WENHUI LEI, ZHENGLEI TANG, WENZHEN HUANG, ZHIQIANG LI, ZHAO XU, KALI PENG, FAN XU, ZHU SHUCHENG, XU SHAOPU, CUI GUANJUN, ZHAO DI, GAO ZHAOHAI, YANG DONG, LI HONGYANG, YU SA, PANG BAIMING, ZHANG SHAOHUI, YUAN YONGQI, LEI WENHUI, TANG ZHENGLEI, HUANG WENZHEN, LI ZHIQIANG, XU ZHAO, PENG KALI, XU FAN
Принадлежит:

The invention discloses a Q345q-series super-thick guaranteed performance and flaw detection bridge steel plate comprising the following chemical components in percentage by mass: 0.08-0.16 percent of C, 0.20-0.50 percent of Si, 1.15-1.60 percent of Mn, not more than 0.020 percent of P, not more than 0.010 percent of S, not more than 0.12 percent of microalloyed element (V+Nb+Ti+Ni), 0.010-0.050 percent of AlS and the balance of Fe and residual elements; and carbon equivalent is not more than 0.43. The invention also discloses a production method of the steel plate, comprising the steps of rolling, cooling, straightening, cooling in pile and thermal treatment. In the rolling, the cooling and the straightening, the 130 mm super-thick Q345qD(E) steel plate is successfully developed in the production line of a converter, die casting, mill rolling and normalization thermal treatment through carrying out reasonable composition design, die casting, TMCP (Thermal Mechanical Control Process) rolling ...

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Номер записи: 10
22-04-2015 дата публикации

Portable automatic flaw detection device and automatic flow detection method

Номер: CN104535651A
Автор: ZHU SHUCHENG, CHEN XI, XU SHAOPU, LI HONGYANG, KANG WENJU, TANG ZHENGLEI
Принадлежит:

The invention discloses a portable automatic flaw detection device and an automatic flow detection method. The flaw detection device comprises an ultrasonic flaw detector and a mobile trolley, wherein the ultrasonic flaw detector comprises an ultrasonic probe and a display screen; the mobile trolley is provided with a trolley body, a controller and two side part shrinkage connecting rods; the output end of the controller is connected with a driving circuit of a motor, an output shaft of the motor is connected with a front shrinkage connecting rod provided with the ultrasonic probe, and wheels are arranged on the side part shrinkage connecting rod; the controller controls the front shrinkage connecting rod to rotate back and forth and control the operation of the mobile trolley, and finally, a detection result is displayed on the display screen. The portable automatic flaw detection device disclosed by the invention is simple in structure, the method is high in degree of automation, and ...

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Номер записи: 11
18-05-2011 дата публикации

Super-thick Q390GJC-Z35 steel plate for high-rise buildings and production method thereof

Номер: CN0102061424A
Автор: DONG YANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, ZHENGLEI TANG, HONGYANG LI, TAO ZHANG, WENJU KANG, ZHAO XU, LIN PANG, XIANXING ZHU, YANG DONG, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, TANG ZHENGLEI, LI HONGYANG, ZHANG TAO, KANG WENJU, XU ZHAO, PANG LIN, ZHU XIANXING
Принадлежит:

The invention discloses a super-thick Q390GJC-Z35 steel plate for high-rise buildings and a production method thereof. The super-thick Q390GJC-Z35 steel plate comprises the following chemical compositions in percentage by mass: less than or equal to 0.19 percent of C, less than or equal to 0.50 percent of Si, 1.00 to 1.60 percent of Mn, less than or equal to 0.015 percent of P, less than or equal to 0.003 percent of S, less than or equal to 0.20 percent of microalloyed elements (Nb+V+Ti+Ni), less than or equal to 0.050 percent of Als and the balance of Fe and residual elements. By reasonably designing the chemical compositions of multiple composite microalloy elements, the cleanliness of steel is ensured by a low frequency (LF)+vacuum degassing (VD) process, the level of the sum of various inclusions does not exceed 3.0, the grain size of the steel reaches 9.0-10.0 level through control rolling and control cooling and normalizing treatment, and the super-thick steel plate for the high-rise ...

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Номер записи: 12
18-05-2011 дата публикации

400-420mm large-thickness low-alloy high-strength constructional steel and production method thereof

Номер: CN0102061426A
Автор: DONG YANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, WENJU KANG, ZHENGLEI TANG, HONGYANG LI, TAO ZHANG, ZHAO XU, LIN PANG, XIANXING ZHU, YANG DONG, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, KANG WENJU, TANG ZHENGLEI, LI HONGYANG, ZHANG TAO, XU ZHAO, PANG LIN, ZHU XIANXING
Принадлежит:

The invention discloses 400-420mm large-thickness low-alloy high-strength constructional steel and a production method thereof. The 400-420mm large-thickness low-alloy high-strength constructional steel comprises the following chemical components in percentage by weight: not more than 0.18% of C, 0.20-0.40% of Si, 1.30-1.55% of Mn, not more than 0.015% of P, not more than 0.003% of S, 0.010-0.035% of Als and the balance of Fe and unavoidable impurities. In the invention, refined grain elements of Nb, V, Ti and the like are not added so that the cost of metallurgy and the content of molten steel inclusions are reduced; the processes of normalizing and wind-cooling refined grains are utilized so as to ensure the quality of the products to match the standard and the use requirements. The production processes are simple, and the constructional steel can be produced in batch. In addition, the applied strengthening mechanisms comprise a structure strengthening mechanism, a fine grains strengthening ...

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Номер записи: 13
16-04-2014 дата публикации

130mm low-alloy low-temperature-toughness thick plate and production method thereof

Номер: CN103725959A
Автор: ZHU SHUCHENG, XU SHAOPU, ZHANG QIANG, TANG ZHENGLEI, LI ZHONGBO, KANG WENJU
Принадлежит:

The invention provides a 130mm low-alloy low-temperature-toughness thick plate and a production method thereof. The 130mm low-alloy low-temperature-toughness thick plate comprises the following chemical components in percentage by mass: 0.08-0.11% of C, 0.25-0.50% of Si, 1.10-1.50% of Mn, at most 0.015% of P, at most 0.005% of S, 0.015-0.035% of Als, 0.020-0.040% of Nb, 0.030-0.050% of V, 0.015-0.025% of Ti, and the balance of Fe and residual elements. The carbon equivalent of the chemical component is at most 0.40. The production method comprises the following steps: KR molten iron pretreatment, refining, heating, controlled rolling and controlled cooling, cooling in pile and heat treatment. Under the actions of grain refinement, precipitation strengthening and the like on the Nb, V and Ti microalloys, the Nb, V and Ti alloys are added on the premise of ensuring the C, Si, Mn, P and S components, and the content of P, S and other harmful elements capable of influencing the toughness of ...

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Номер записи: 14
07-04-2023 дата публикации

Production method of small-compression-ratio low-alloy flaw-detection-guaranteed steel plate

Номер: CN115927957A
Автор: XU SHAOPU, YANG DONG, LI ZHONGBO, ZHU SHUCHENG, KANG WENJU, LIU QINGBO, WANG LIUYI, YANG YANG, TANG ZHENGLEI, BAI YIBO, LI GAZI, ZHU XIANXING, REN YI
Принадлежит:

The invention belongs to the field of medium-thickness plate production, and particularly relates to a production method of a small-compression-ratio low-alloy flaw-detection-guaranteed steel plate. According to the production method, through the innovation of clean steel smelting, continuous casting, heating and rolling processes, normalizing is not needed, a 300 mm continuous casting blank is adopted for producing a low-alloy steel plate which is 110-150 mm thick, guarantees first-level flaw detection and lamellar tearing resistance and meets the Z35 requirement, a production line without die casting, composite blank and 350-450 mm thick continuous casting blank production capacity can also be used for producing a thick steel plate which guarantees performance and flaw detection, and the production efficiency is improved. The production guarantee capacity of the thick steel plate is improved, the whole scheme is simple in process, easy to operate, low in production cost and suitable for ...

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Номер записи: 15
07-04-2023 дата публикации

Production method of high-strength building steel Q420GJDZ35

Номер: CN115927958A
Автор: XU SHAOPU, YU SA, ZHU SHUCHENG, LI ZHONGBO, YANG HU, WANG LIUYI, KANG WENJU, LIU QINGBO, YANG YANG, DING JIAN, TANG ZHENGLEI, YANG CHUN, LI GAZI, ZHU XIANXING, REN YI
Принадлежит:

The invention belongs to the field of wide and thick plate production, and particularly relates to a production method of high-strength building steel Q420GJDZ35, the thickness of a steel plate is 60-80 mm, and the steel plate is prepared from the following chemical components in percentage by weight: 0.08-0.12% of C, 0.05-0.1% of Si, 1.50-2.00% of Mn, less than or equal to 0.010% of P, less than or equal to 0.003% of S, 0.015-0.050% of Als, 0.040-0.080% of Nb, 0.050-0.070% of V, 0.2-0.4% of Cr, 0.30-1.00% of Ni and the balance of Fe and residual elements, and Ceq = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15 is less than or equal to 0.47%. The controlled rolling and RPC technology is adopted to replace conventional quenching and tempering, the technological process is shortened, the production cost is reduced, the obtained steel plate is compact in structure and slight in segregation, the content of components and impurities meets the technical requirements of Z35-level tear-resistant steel ...

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Номер записи: 16
02-05-2023 дата публикации

Low-cost Q550D steel produced through TMCP technology and production method of low-cost Q550D steel

Номер: CN116043104A
Автор: LI ZHONGBO, ZHENG HAIMING, HU HONGWEI, ZHU SHUCHENG, XU SHAOPU, LIU QINGBO, KANG WENJU, TANG ZHENGLEI, YANG YANG, XUE YANSHENG, YUAN YONGQI, QUAN WEIBO, WANG YONG, YANG CHUN, ZHU XIANXING, YUAN GAOJIAN, REN YI
Принадлежит:

The invention belongs to the technical field of wide and thick plate metallurgy, and particularly relates to low-cost Q550D steel produced through a TMCP technology and a production method of the low-cost Q550D steel. The components of the steel plate adopt medium carbon design, on the premise that the strength is guaranteed, the addition amount of alloy is reduced, the heat treatment process is omitted through precise control over the rolling reduction, the temperature and the cooling speed in the rolling and cooling process, and the obtained Q550D steel has 50-60% of bainite, 20-30% of acicular ferrite and 10-20% of pearlite structures, and has the advantages of being high in strength, high in toughness, high in strength and the like. The alloy has the advantages of reasonable combination of chemical components and matrix structures, higher strength, excellent low-temperature impact toughness and low alloy cost, omits the heat treatment link in the production process, further reduces ...

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Номер записи: 17
01-06-2011 дата публикации

High-strength steel plate Q460GJE-Z35 for extra-thick high-rise building structure and production method thereof

Номер: CN0102080182A
Автор: SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, ZHENGLEI TANG, HONGYANG LI, WENJU KANG, DONG YANG, ZHAO XU, LIN PANG, TAO ZHANG, YIBO BAI, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, TANG ZHENGLEI, LI HONGYANG, KANG WENJU, YANG DONG, XU ZHAO, PANG LIN, ZHANG TAO, BAI YIBO
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The invention discloses a high-strength steel plate Q460GJE-Z35 for an extra-thick high-rise building structure and a production method thereof. The production method comprises the following steps of KR (Knotted Reactor) desulfurization, transferring to a converter, LF (Ladle Furnace) refining, VD (Vacuum Degassing) vacuum treatment, casting, mold cooling for 8 hours after reaching the steel ingot stripping time, cleaning (completion of cleaning within 8 hours), charging and rolling at the rolling temperature, heating, descaling, rolling through a 3,800mm rolling mill, straightening, cooling in heap, external examination, flaw detection, heat treatment, finishing and warehousing. With a rational component design, molded casting, heating and heat treatment, the yield strength of the obtained product is 440-480MPa; the tensile strength of the obtained product is 540-630MPa; the elongation rate of the obtained product is 24-27%; the impact energy of the obtained product at the temperature ...

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Номер записи: 18
01-06-2011 дата публикации

Q345GJ series structural steel plates for ultra-thick building and production method thereof

Номер: CN0102080183A
Автор: TAO ZHANG, SHUCHENG ZHU, SHAOPU XU, LIXIN ZHANG, GUANJUN CUI, DONG YANG, ZHENGLEI TANG, HONGYANG LI, WENJU KANG, ZHAO XU, LIN PANG, YIBO BAI, ZHANG TAO, ZHU SHUCHENG, XU SHAOPU, ZHANG LIXIN, CUI GUANJUN, YANG DONG, TANG ZHENGLEI, LI HONGYANG, KANG WENJU, XU ZHAO, PANG LIN, BAI YIBO
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The invention discloses a Q345GJ series structural steel plates for an ultra-thick building and a production method thereof. In the Q345GJ series steel plate, the yield strength is controlled at 335-420MPa, the tensile strength is controlled at 505-585MPa, the elongation ratio is controlled at 25-29%, the V-shaped shock power at 0 DEG C is controlled at 156-190J, the yield ratio is 0.62-0.81 and is 0.69 in average, the single lamellar tearing resisting capacity is 32-48% and is 40.2% in average, and the performance indexes completely satisfy the Q345GJCZ35 development requirement. In addition, the steel plate tissues subjected to controlled rolling are ferrite and pearlite and has the grain size up to 8-9 level. After normalizing treatment, the ferrite and pearlite tissues in the steel plate are more uniform, and the grains are refined to reach 10.5 level.

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Номер записи: 19
08-04-2015 дата публикации

Novel alloy structure steel and preparation method thereof

Номер: CN104498830A
Автор: ZHU SHUCHENG, XU SHAOPU, YANG DONG, LI ZHONGBO, KANG WENJU, TANG ZHENGLEI
Принадлежит:

The invention discloses novel alloy structure steel and a preparation method thereof. The novel alloy structure steel comprises the following chemical components in percentage by mass: 0.42%-0.48% of C, 0.20%-0.35% of Si, 0.90%-1.20% of Mn, no more than 0.018% of P, no more than 0.005% of S, 0.90%-1.20% of Cr, 0.25%-0.35% of Mo, 0.20%-0.40% of Als, 0.0008%-0.0015% of B and the balance of Fe and residual elements. The preparation method comprises the following steps: converter smelting, LF refining, vacuum refining, die casting pouring, steel ingot heating, rolling, retarded cooling, and thermal treatment. Through reasonable design on chemical components, the cleanness of the steel is ensured by LF and VD processes; the yield strength is controlled at 985-1250MPa through the processes of heating, rolling, thermal treatment and the like; the tensile strength is controlled at 1280-1450MPa; the elongation at break is controlled at 13-17%; the CV-type impact energy at 20 DEG C is controlled ...

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Номер записи: 20
04-04-2023 дата публикации

Production method of novel high-strength HY690MD steel plate

Номер: CN115896618A
Автор: LI ZHONGBO, YUAN YONGQI, XU SHAOPU, HU HONGWEI, LIU QINGBO, TANG ZHENGLEI, KANG WENJU, YANG YANG, ZHANG TAO, GAO ZHAOHAI, DING JIAN, WANG YONG, BAI YIBO, YUAN GAOJIAN, ZHU XIANXING
Принадлежит:

The invention discloses a production method of a novel high-strength HY690MD steel plate, the thickness of the steel plate is 16-40 mm, and the steel plate comprises the following chemical components in percentage by mass (wt%): 0.06-0.16% of C, 0.15-0.40% of Si, 1.20-1.80% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.40-1.0% of Cr, 0.10-0.30% of Mo, 0.020-0.050% of Ti, less than or equal to 0.0020% of B, less than or equal to 0.050% of Als and the balance of Fe and residual elements. The production method of the steel plate comprises the steps of molten iron pretreatment, converter smelting, LF refining, vacuum refining, continuous casting, heating, rolling, ACC laminar cooling, steel plate slow cooling, finishing inspection and the like. Wherein three stages of uniform-temperature rolling are adopted in the rolling technological process, specifically, the first stage is austenite recrystallization area rolling, and the pass rolling reduction is not lower ...

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Номер записи: 21
15-07-2021 дата публикации

Slag Discharging Method in Process of Producing Ultra-Low Phosphorus Steel and Method for Producing Ultra-Low Phosphorus Steel

Номер: US20210214813A1
Автор: Bai Yibo, Chen Liang, Chen Xi, Dong Zhenzhen, Du Zhiquan, Fu Keyi, Jiang Peng, Kang Wenju, Li Bo, Li Gazi, LI Hongyang, Li Liang, LI Zhongbo, Liu Qingbo, Lv Yuliang, Pang Baiming, Quan Weibo, Ren Yi, Tang Zhenglei, Wang Xibin, Wang Yingjie, Wang Yong, Xu Shaopu, Xue Yansheng, YANG CHUN, Yang Yang, Yu Sa, Yuan Gaojian, Yuan Jiheng, Yuan Yongqi, Zhang Shuai, Zhang Tao, Zhang Zhanjie, ZHAO Di, Zhao Hu, Zheng Haiming, Zhu Shucheng, Zhu Xianxing
Принадлежит: NANYANG HANYE SPECIAL STEEL CO., LTD

Disclosed is a slag discharging method in a process of producing ultra-low phosphorus steel, which relates to the technical field of iron and steel smelting, and in which molten steel is mixed with lime first to produce basic slag; then converting is performed with oxygen to increase the oxidizability of the basic slag; and a carbon-containing reducing agent is finally added, so that in the process that the carbon is oxidized to release a large amount of carbon monoxide gas, phosphates are captured, and the basic slag is rapidly foamed and overflows from the opening of the steel ladle, so that conditions are no longer available for rephosphorization. The slag discharging method is simple and convenient to operate, does not have high requirements on the equipment, has relatively good dephosphorization effect, and can be used to prepare an ultra-low phosphorus steel containing less than 0.003% phosphorus. Also disclosed is a method for producing ultra-low phosphorus steel, which comprises the above-described slag discharging method in a process of producing ultra-low phosphorus steel, and refining and ingotting after slag discharge. The production method has good dephosphorization effect, has a low production cost, and can high-efficiently produce an ultra-low phosphorus steel containing less than 0.003% phosphorus. 1. A slag discharging method in a process of producing ultra-low phosphorus steel , comprising:adding lime along with molten steel, while pouring the molten steel into a steel ladle, so as to slag in advance and form basic slag;blowing oxygen to a top of the steel ladle and blowing argon to a bottom of the steel ladle for converting;tilting the steel ladle so that a surface of the molten steel is close to an opening of the steel ladle; andadding a carbon-containing reducing agent so that the basic slag is foamed and overflows from the opening of the steel ladle.2. The slag discharging method according to claim 1 , wherein based on a mass of the molten ...

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Номер записи: 22