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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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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 11. Отображено 11.
02-06-2023 дата публикации

Disc disk blade and preparation method thereof

Номер: CN116195384A
Автор: LIANG JIANGTAO, LIU KUN, DENG SUHUAI, PANG LUFENG, XIAO BAOLIANG, XU YONGXIAN, MIAO CHENGLIANG, TIAN ZHIHONG, HUANG AIJIAN, LI LEI, HUI YAJUN, LI XIAOLIN, LV BO, ZOU YING, XU CHENGLIANG, CAO RONGHUA, GUO HUIMIN, YU MENG, XU HAIWEI
Принадлежит:

The invention particularly relates to a disc harrow piece and a preparation method thereof, and belongs to the technical field of high-strength steel for agricultural machinery, the microstructure of the edge part of the disc harrow piece takes martensite as a matrix, and the microstructure of the core part of the disc harrow piece takes ferrite and pearlite as matrixes; due to the structure distribution, on one hand, the high abrasion resistance of the edge of the disc harrow blade during working is guaranteed, on the other hand, the high toughness of the core of the disc harrow blade is guaranteed, and the brittle failure or cracking phenomenon in the service process is avoided.

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Номер записи: 1
24-06-2015 дата публикации

Hot rolling technique of X80 pipeline steel coil plate

Номер: CN104726665A
Автор: NIU TAO, WU XINLANG, LI MING, LI FEI, WU JUNKUAN, CHEN BIN, JIANG XIAO, LIU KUN, MIAO CHENGLIANG, WANG XUEQIANG, JIANG YONGWEN, YU CHEN, XU WEI, ZHANG CAIXIA, AN CHENGGANG
Принадлежит:

The invention discloses a hot rolling technique of an X80 pipeline steel coil plate, which solves the problem of poor DWTT performance stability of the X80 pipeline steel coil plate with the thickness of at least 20mm produced in the prior art. The hot rolling technique comprises the steps of slab heating, rough rolling, finish rolling, post-rolling cooling and coiling. In the rough rolling, 5-8-pass rough rolling is performed, the rolling temperature of the next-to-last pass is lower than or equal to 980 DEG C, the rolling reduction of the next-to-last pass is greater than or equal to 20%, the rolling temperature of the last pass is lower than or equal to 950 DEG C, and the rolling reduction of the last pass is greater than or equal to 23%; in the finish rolling step, the finish rolling inlet temperature is lower than or equal to 920 DEG C, the finish rolling accumulative rolling reduction is greater than or equal to 62%, and the finish rolling finishing temperature is Ar3+0-30 DEG C ( ...

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Номер записи: 2
29-08-2023 дата публикации

Pickling annealing plate and preparation method thereof

Номер: CN116656924A
Автор: LI SHENGCUN, LIANG JIANGTAO, WANG HAOYU, MIAO CHENGLIANG, ZHANG YING, ZHOU SHAOXUAN, TIAN GUICHANG, JIANG XIAOGANG, PAN YUNLONG, WANG MEILIN, YAN HONGJIE
Принадлежит:

The invention relates to the technical field of pickling plate rear cover annealing production, in particular to a pickling annealing plate and a preparation method thereof. The method comprises the following steps: heating a plate blank to enable the plate blank to have a target temperature; the heated plate blank is rolled, technological parameters of rolling are controlled, and a hot rolled plate is obtained; under the condition of a first set temperature, the hot-rolled plate is coiled, and hot-rolled strip steel is obtained; the hot-rolled strip steel is subjected to acid pickling; wherein the acid pickling comprises withdrawal and straightening, and the elongation rate of the withdrawal and straightening is controlled; and under the condition of a second set temperature, cover annealing is conducted on the hot-rolled strip steel subjected to acid pickling, and the acid pickling annealing plate is obtained. The technical problem that existing automobile steel is high in manufacturing ...

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Номер записи: 3
08-08-2023 дата публикации

Preparation method of hot-rolled strip steel

Номер: CN116550755A
Автор: LI XIAOLIN, LIANG JIANGTAO, LV BO, XIAO BAOLIANG, ZHANG DAWEI, ZHU GUOSEN, XU HAIWEI, YANG CHUNZHENG, YU MENG, LI JIXIN, XU YONGXIAN, WEN JIE, LIN HAIHAI, GUO WEI, TIAN ZHIHONG, DONG ZHANKUI, MIAO CHENGLIANG, ZHANG JIE, JI CHENXI, ZHANG MINGSHENG, ZHANG MENG
Принадлежит:

The invention relates to the technical field of steel, in particular to a preparation method of hot-rolled strip steel. The thickness of the strip steel ranges from 0.8 mm to 4.0 mm. The method comprises the steps that under the condition that the pulling speed of a casting machine is set, continuous casting is conducted through headless mode molten steel, and a casting blank is obtained; wherein the thickness of the casting blank is controlled to be a set thickness; under the conditions of a set rolling inlet temperature and a set rolling finishing temperature, the casting blank is subjected to finish rolling, and a hot-rolled plate is obtained; cooling the hot-rolled plate by stages to enable the hot-rolled plate to have a set temperature, and then coiling to obtain hot-rolled strip steel; wherein in the cooling process, heat preservation treatment is carried out on the hot rolled plate. The technical problem that flat coils of thin-specification hot-rolled strip steel are produced in ...

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Номер записи: 4
02-06-2023 дата публикации

High-strength and high-fatigue-performance steel plate and preparation method thereof

Номер: CN116200666A
Автор: LIANG JIANGTAO, LI YUE, LIU KUN, ZHU GUOSEN, TIAN ZHIHONG, DENG SUHUAI, LIU SHUNMING, XIAO BAOLIANG, MIAO CHENGLIANG, LI XIAOLIN, HUI YAJUN, HEO BI-BEOM, CAO RONGHUA, YU MENG, XU HAIWEI
Принадлежит:

The invention particularly relates to a high-strength and high-fatigue-performance steel plate and a preparation method thereof, and belongs to the technical field of steel preparation, relatively simple component design is adopted, C, Si, Mn, Cr, Nb, Ti and other conventional alloy elements are adopted, Cr, Mo and other elements are added, the hardenability of the material is guaranteed, more hard phases are obtained, and the strength is guaranteed; the low-carbon component design is adopted, and elements such as Nb and V are added, so that refined grains of the material are obtained, and the yield strength and fatigue strength of the material are guaranteed; by adding Cu, Ni and other elements, the corrosion resistance of the steel plate is guaranteed, the yield strength of the finished steel plate is 900-950 MPa, the tensile strength is 950-1050 MPa, the percentage elongation after fracture is 3-6%, the yield ratio is larger than or equal to 0.9, the fatigue strength is larger than or ...

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Номер записи: 5
28-07-2023 дата публикации

700MPa-grade hot-rolled high-strength high-weathering-resistant steel as well as preparation method and application thereof

Номер: CN116497280A
Автор: LIU KUN, ZHANG XU, JIANG SHAN, YUAN YUAN, NIU TAO, PANG LUFENG, BAI FENGXIA, HUANG TIANHUA, LIANG JIANGTAO, HAN YUN, TIAN ZHIHONG, XU YONGXIAN, LI FEI, XU HAIWEI, WANG LUN, HUI YAJUN, WANG XUEQIANG, YU MENG, MIAO CHENGLIANG, ZHU GUOSEN, AN RUIDONG, LI RUI, LI YUE, GUO HUIMIN, LI YONGLIN
Принадлежит:

The invention relates to the field of weathering resistant steel materials, in particular to 700MPa-grade hot-rolled high-strength high-weathering resistant steel as well as a preparation method and application thereof. The hot-rolled steel with high strength and high weathering resistance comprises the following chemical components in percentage by mass: 0.043 percent to 0.048 percent of C, 0.51 percent to 0.59 percent of Si, 0.61 percent to 0.68 percent of Mn, 0.041 percent to 0.049 percent of P, 0.0031 percent to 0.0038 percent of S, 0.071 percent to 0.079 percent of Al, 0.092 percent to 0.099 percent of Ti, 0.251 percent to 0.259 percent of Cu, 1.81 percent to 1.98 percent of Cr, 0.0031 percent to 0.0034 percent of N and the balance of Fe and inevitable impurities. The microalloying design with low C content, low Mn content and high Ti content is adopted, the overall strength of the high-weathering-resistant steel is improved, the deformation resistance in the rolling process is reduced ...

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Номер записи: 6
19-02-2014 дата публикации

Hot-continuous-rolled steel belt for oil casing of grade N80 and production method thereof

Номер: CN103589963A
Автор: WANG CHAO, SUN DAQING, MIAO CHENGLIANG, CUI YANG, WANG ZHIPENG, ZHANG HONGYAN, CHENG ZHENG, XU FANG, YANG DAIJUN
Принадлежит:

The invention provides a hot-continuous-rolled steel belt for an oil casing of grade N80. The hot-continuous-rolled steel belt contains the following chemical components in percentage by weight: 0.25-0.35 weight percent of C, 0.10-0.30 weight percent of Si, 1.2-1.8 weight percent of Mn, 0-0.020 weight percent of P, 0-0.0050 weight percent of S, 0.018-0.050 weight percent of Nb, 0.30-0.50 weight percent of Cr, 0.010-0.020 weight percent of Ti, 0-0.005 weight percent of V and 0-0.005 weight percent of Mo, and the balance of Fe and inevitable impurities. The hot-continuous-rolled steel belt for the oil casing of grade N80 adopts a two-segment cooling and hot-rolling process and is directly obtained through hot continuous rolling. The matrix structure of the hot-continuous-rolled steel belt is a ferrite + bainite dual phase structure, the grain size is at least 12 grade, the yield strength is 552MPa<= Rt0.5<=758MPa, the tensile strength Rm is at least 689MPa, the elongation A50mm is at least ...

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Номер записи: 7
01-08-2023 дата публикации

550MPa-grade hot-rolled high-strength high-weathering-resistant steel as well as preparation method and application thereof

Номер: CN116516253A
Автор: LIU KUN, ZHANG XU, JIANG SHAN, WANG SONGTAO, PANG LUFENG, HUANG TIANHUA, TIAN ZHIHONG, XU YONGXIAN, YU CHEN, HARAZONO, DENG SUHUAI, HAN YUN, XU HAIWEI, YU MENG, MIAO CHENGLIANG, AI JIAOJIAN, WANG XUEQIANG, ZHU GUOSEN, CHEN BIN, AN RUIDONG, CHENG YANG, LI RUI, WANG LUN
Принадлежит:

The invention relates to the field of weathering resistant steel materials, in particular to 550MPa-grade hot-rolled high-strength high-weathering resistant steel as well as a preparation method and application thereof. The hot-rolled steel with high strength and high weathering resistance comprises the following chemical components in percentage by mass: 0.043% to 0.048% of C, 0.51% to 0.59% of Si, 0.61% to 0.68% of Mn, 0.101% to 0.109% of P, 0.0031% to 0.0038% of S, 0.071% to 0.079% of Al, 0.062% to 0.067% of Ti, 0.251% to 0.259% of Cu, 1.31% to 1.42% of Cr, 0.0031% to 0.0034% of N and the balance of Fe and inevitable impurities. The microalloying design with low C content, low Mn content and high Ti content is adopted, the overall strength of the high-weathering-resistant steel is improved, the deformation resistance in the rolling process is reduced, the rolling stability is good, composite weathering resistance design is carried out aiming at Si, P, Cu and Cr elements, the contribution ...

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Номер записи: 8
14-07-2023 дата публикации

Steel and preparation method thereof

Номер: CN116426729A
Автор: LIANG JIANGTAO, LIU KUN, DENG SUHUAI, LI YUE, XIAO BAOLIANG, MIAO CHENGLIANG, LIU SHUNMING, WANG YONGQIANG, MA ZHUANG, QIAO JIANJUN, YU LU, LI YANYAN, JING CAILIANG, JIN XIN, ZHANG TAO, JIANG XIAOGANG, WANG XIAOBIN, GUO YONG, CHENG DASHENG, YU MENG, XU HAIWEI, TIAN ZHIHONG, ZHU GUOSEN
Принадлежит:

The invention relates to steel and a preparation method thereof, and belongs to the technical field of steel preparation. Rolling and coiling the casting blank to obtain a plate coil; the plate coil is subjected to acid pickling, and an acid-pickled plate is obtained; performing first annealing on the pickled plate according to a first annealing parameter to obtain a first annealed plate; performing cold rolling on the first annealed plate according to a set reduction rate to obtain a cold-rolled plate; controlling the cold-rolled sheet to perform second annealing according to a second annealing parameter to obtain steel; the process of annealing-rolling-annealing is adopted, under the condition of the set reduction rate, mechanical energy storage and a carbon diffusion channel can be provided, the spheroidization rate of steel is increased, and then low hardness and high elongation of the steel are achieved.

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Номер записи: 9
14-07-2023 дата публикации

Enameled steel plate and preparation method thereof

Номер: CN116426839A
Автор: LIU ZAIWANG, CAO RONGHUA, WANG QUANLI, YANG LIBIN, LIANG LICHUAN, LIU SHUNMING, HAN YUN, TENG HUAXIANG, LIU LIBIN, XIONG AIMING, LIANG XUAN, ZHANG ZHIMIN, QIAO JIANJUN, MIAO CHENGLIANG, GUO MIN
Принадлежит:

The invention provides an enamelled steel plate and a preparation method thereof, and belongs to the technical field of enamelled steel plate production, and the enamelled steel plate comprises the following chemical components in percentage by mass: 0.03-0.15% of Alt, 0.004-0.015% of B, 0.01-0.03% of N, 0.01-0.03% of P, 0.01-0.03% of S and the balance of Fe. N is mainly combined with B to form BN particles, and the BN particles are good in stability, not easy to dissolve at high temperature and capable of stably improving fish scaling resistance; alt reacts with residual N to generate AlN, so that the effects of refining crystal grains and hindering the growth of the crystal grains during enameling can be achieved, and the strength of the steel plate at high temperature can be improved instead of being reduced under the cooperation of specific process control conditions. Therefore, the enamelled steel plate has good fish scaling resistance, and the problem that the strength of an existing ...

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Номер записи: 10
01-08-2023 дата публикации

Hot-rolled high-strength high-weathering-resistant steel and preparation method and application thereof

Номер: CN116516254A
Автор: LIU KUN, ZHANG XU, JIANG SHAN, TIAN ZHIHONG, CHEN BIN, PANG LUFENG, HUANG TIANHUA, HUI YAJUN, HARAZONO, XU YONGXIAN, WANG XUEQIANG, HAN YUN, NIU TAO, XU HAIWEI, YU MENG, MIAO CHENGLIANG, WANG LUN, LI FEI, AN RUIDONG, LI RUI, LI YUE, BAI FENGXIA, ZHU GUOSEN, LI YONGLIN
Принадлежит:

The invention relates to the field of weathering resistant steel materials, in particular to hot-rolled high-strength high-weathering resistant steel and a preparation method and application thereof. The hot-rolled steel with high strength and high weathering resistance comprises the following chemical components in percentage by mass: 0.043% to 0.048% of C, 0.51% to 0.59% of Si, 0.61% to 0.68% of Mn, 0.101% to 0.109% of P, 0.0031% to 0.0038% of S, 0.071% to 0.079% of Al, 0.062% to 0.067% of Ti, 0.251% to 0.259% of Cu, 0.84% to 0.89% of Cr, 0.0031% to 0.0034% of N and the balance of Fe and inevitable impurities. The microalloying design with low C content, low Mn content and high Ti content is adopted, the overall strength of the high-weathering-resistant steel is improved, the deformation resistance in the rolling process is reduced, the rolling stability is good, composite weathering resistance design is carried out aiming at Si, P, Cu and Cr elements, the contribution of Si, P and other ...

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Номер записи: 11