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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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Применить Всего найдено 6. Отображено 6.
04-08-2010 дата публикации

Steel with underrelaxation and hydrogen corrosion resistance for high-speed railway prestressed pull rod and production method thereof

Номер: CN0101792884A
Автор: DING NING, HUANG XIYANG, KONG XIANGTAO, LAN DAIWANG, LI SANKAI, LI YONGDONG, SUN JIA, SUN QISONG, WANG LI, WANG LIFENG, WANG QUANLI, YE SHAOFENG, YU HUANGHAI, ZHANG BAOQUAN, ZHAO FULIN, ZHENG QUAN, ZHOU DE, NING DING, XIYANG HUANG, XIANGTAO KONG, DAIWANG LAN, SANKAI LI, YONGDONG LI, JIA SUN, QISONG SUN, LI WANG, LIFENG WANG, QUANLI WANG, SHAOFENG YE, HUANGHAI YU, BAOQUAN ZHANG, FULIN ZHAO, QUAN ZHENG, DE ZHOU
Принадлежит:

The invention discloses steel with underrelaxation and hydrogen corrosion resistance for a high-speed railway prestressed pull rod and a production method thereof, which belong to the technical field of steel for railways. By adopting Si as a main enhancing element and micro alloying Cr, Ti and B, the material has excellent comprehensive performances during heat treatment. The production flow comprises working procedures of smelting, refining, continuous casting and rolling, wherein the smelting working procedure is carried out on an electric furnace or a converter; and the material is subjected to LF refining and continuously cast into casting blanks. After treated by a heat treatment process, the raw material has the mechanical property of 1,420-1,480MPa, the elongation percentage of more than or equal to 9.0 percent, the hydrogen stress corrosion fracture resistant time for more than 70 hours, fatigue fracture life for more than 3 millions of times, relaxation less than 3.5 percent for ...

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Номер записи: 1
25-03-2009 дата публикации

Method for shortening high carbon steel aging time through online thermal insulation

Номер: CN0101392313A
Автор: WANG QUANLI, ZHOU DE, LI YONGDONG, LIN JIANMING, LAN DAIWANG, YE SHAOFENG, KONG XIANGTAO, CHEN MINGYUE, YAN XINSHE, LI SANKAI, ZHENG QUAN, QUANLI WANG, DE ZHOU, YONGDONG LI, JIANMING LIN, DAIWANG LAN, SHAOFENG YE, XIANGTAO KONG, MINGYUE CHEN, XINSHE YAN, SANKAI LI, QUAN ZHENG
Принадлежит:

The invention relates to a method for shortening the aging time of high carbon steel through on-line heat preservation, which pertains to the technical field of high carbon steel. The roller speed of a wire rod on an air cooling line is calculated by sections, spinning to the end of phase transition is the first section and the end of phase transition to the position of next reel collecting is the second section. At the first section, the roller speed is designed from fast to slow and the roller speed is reduced to the slowest without hitting a slow chain from the first dropping section after the phase transition. At the first section, a fan and a heat preservation cover are all started; at the second section, the fan is shut down and the heat preservation cover is closed to carry out heat preservation; PF lines are closed into a heat preservation channel by steel plates or other thermal baffles and the wire rod is bundled and packaged by a bander after heat preservation in the heat preservation ...

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Номер записи: 2
25-01-2012 дата публикации

Steel with underrelaxation and hydrogen corrosion resistance for high-speed railway prestressed pull rod and production method thereof

Номер: CN0101792884B
Автор: DING NING, HUANG XIYANG, KONG XIANGTAO, LAN DAIWANG, LI SANKAI, LI YONGDONG, SUN JIA, SUN QISONG, WANG LI, WANG LIFENG, WANG QUANLI, YE SHAOFENG, YU HUANGHAI, ZHANG BAOQUAN, ZHAO FULIN, ZHENG QUAN, ZHOU DE, NING DING, XIYANG HUANG, XIANGTAO KONG, DAIWANG LAN, SANKAI LI, YONGDONG LI, JIA SUN, QISONG SUN, LI WANG, LIFENG WANG, QUANLI WANG, SHAOFENG YE, HUANGHAI YU, BAOQUAN ZHANG, FULIN ZHAO, QUAN ZHENG, DE ZHOU
Принадлежит:

The invention discloses steel with underrelaxation and hydrogen corrosion resistance for a high-speed railway prestressed pull rod and a production method thereof, which belong to the technical field of steel for railways. By adopting Si as a main enhancing element and micro alloying Cr, Ti and B, the material has excellent comprehensive performances during heat treatment. The production flow comprises working procedures of smelting, refining, continuous casting and rolling, wherein the smelting working procedure is carried out on an electric furnace or a converter; and the material is subjected to LF refining and continuously cast into casting blanks. After treated by a heat treatment process, the raw material has the mechanical property of 1,420-1,480Mpa, the elongation percentage of more than or equal to 9.0 percent, the hydrogen stress corrosion fracture resistant time for more than 70 hours, fatigue fracture life for more than 3 millions of times, relaxation less than 3.5 percent for ...

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Номер записи: 3
22-09-2010 дата публикации

Method for solving differences between the center of larger-size 82B wire rod and the edging tissue thereof

Номер: CN0101597676B
Автор: ZHOU DE, WANG QUANLI, LI YONGDONG, CHEN MINGYUE, SUN JIA, LAN DAIWANG, KONG XIANGTAO, YE SHAOFENG, HUANG XIYANG, LI SANKAI, ZHAO FULIN, ZHENG QUAN, SUN QISONG, DING NING, DE ZHOU, QUANLI WANG, YONGDONG LI, MINGYUE CHEN, JIA SUN, DAIWANG LAN, XIANGTAO KONG, SHAOFENG YE, XIYANG HUANG, SANKAI LI, FULIN ZHAO, QUAN ZHENG, QISONG SUN, NING DING
Принадлежит:

The invention provides a method for solving differences between the center of a larger-size 82B wire rod and the edging tissue thereof, belonging to the technical field of high carbon steel. In the method, the characteristic that chrome can reduce the beginning and the ending phase transformation temperatures of the 82B steel is adopted, 0.04%-0.06% of Cr is added on the basis of 82B steel components, the opening of fans is adjusted at 85% by the wire rod from the 4-6m position before phase transformation to the starting point of the phase transformation, all fans are opened from the phase transformation position to the wire rod 490-510 DEG C position, and then all fans are closed until the gathering coil packaging is carried out. The invention has the advantage that the sorbitic rate of 82B wire rod is lower in the specification of phi 15-16mm is solved by Stelmor cooling process.

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Номер записи: 4
09-12-2009 дата публикации

Method for solving differences between the center of larger-size 82B wire rod and the edging tissue thereof

Номер: CN0101597676A
Автор: ZHOU DE, WANG QUANLI, LI YONGDONG, CHEN MINGYUE, SUN JIA, LAN DAIWANG, KONG XIANGTAO, YE SHAOFENG, HUANG XIYANG, LI SANKAI, ZHAO FULIN, ZHENG QUAN, SUN QISONG, DING NING, DE ZHOU, QUANLI WANG, YONGDONG LI, MINGYUE CHEN, JIA SUN, DAIWANG LAN, XIANGTAO KONG, SHAOFENG YE, XIYANG HUANG, SANKAI LI, FULIN ZHAO, QUAN ZHENG, QISONG SUN, NING DING
Принадлежит:

The invention provides a method for solving differences between the center of a larger-size 82B wire rod and the edging tissue thereof, belonging to the technical field of high carbon steel. In the method, the characteristic that chrome can reduce the beginning and the ending phase transformation temperatures of the 82B steel is adopted, 0.04%-0.06% of Cr is added on the basis of 82B steel components, the opening of fans is adjusted at 85% by the wire rod from the 4-6m position before phase transformation to the starting point of the phase transformation, all fans are opened from the phase transformation position to the wire rod 490-510 DEG C position, and then all fans are closed until the gathering coil packaging is carried out. The invention has the advantage that the sorbitic rate of 82B wire rod is lower in the specification of phi 15-16mm is solved by Stelmor cooling process.

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Номер записи: 5
09-12-2009 дата публикации

Micro alloying SWRH87B hot rolled wire rod and manufacturing method thereof

Номер: CN0101597713A
Автор: DE ZHOU, QUANLI WANG, YONGDONG LI, MINGYUE CHEN, XIANGTAO KONG, JIA SUN, DAIWANG LAN, HUANGHAI YU, LI WANG, BAOQUAN ZHANG, XIYANG HUANG, SHAOFENG YE, QISONG SUN, NING DING, SANKAI LI, FULIN ZHAO, QUAN ZHENG, ZHOU DE, WANG QUANLI, LI YONGDONG, CHEN MINGYUE, KONG XIANGTAO, SUN JIA, LAN DAIWANG, YU HUANGHAI, WANG LI, ZHANG BAOQUAN, HUANG XIYANG, YE SHAOFENG, SUN QISONG, DING NING, LI SANKAI, ZHAO FULIN, ZHENG QUAN
Принадлежит:

The invention provides a micro alloying SWRH87B hot rolled wire rod and a manufacturing method thereof, belonging to the technical field of hot rolled wire rod. In the invention, Cr and V micro alloying are adopted; double slag process high drawing carbon operation is used in a converter; end-point carbon is controlled at 0.40-0.60%, the steel tapping temperature is 1580-1620 DEG C, and the slag-blocked tapping is used; low nitrogen carburant is used for recarburization; Si-Ca-Ba is used for deoxidation; 600-800kg synthetic slag is added into each converter; oxygen activity is controlled below 10ppm by entering into an LF refining station, and the refined finishing slag sum of FeO and MnO is no more than 3%; inclusion modification treatment is carried out on the Ca-Si line; a billet in the size of 160mm*160mm is used, a casting mould is used for coordinating with final electromagnetic stirring (F-EMS); continuous casting machine whole protection, constant drawing speed casting and proper ...

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Номер записи: 6