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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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Применить Всего найдено 6. Отображено 6.
14-09-2011 дата публикации

Argon-blowing prefabricated member for continuous casting tundish cover

Номер: CN0102179491A
Автор: FAXING LI, YONGXI SUN, CHUANQING MA, WEI ZHANG, ZHENMING SHI, ZHENGRONG OUYANG, GUIYUN ZHENG, ZUOCANG MA, YONGCHANG LIU, GUOQIANG DU, LI FAXING, SUN YONGXI, MA CHUANQING, ZHANG WEI, SHI ZHENMING, OUYANG ZHENGRONG, ZHENG GUIYUN, MA ZUOCANG, LIU YONGCHANG, DU GUOQIANG
Принадлежит:

The invention relates to an argon-blowing prefabricated member for a continuous casting tundish cover and belongs to the technical field of ferrous metallurgical equipment. Argon-blowing prefabricated members with difference sizes can be designed according to the size of a baking hole, a charging hole, a plug hole and the like of the tundish cover. The argon-blowing prefabricated member comprisesa prefabricated member body; the argon-blowing prefabricated member body has a shape of a cone of which the radius of the upper bottom is greater than that of the lower bottom, or the longitudinal section structure of the prefabricated member body is T-shaped. The prefabricated member body is hollow, an aeration pipeline is arranged in the prefabricated member body, and the prefabricated member body is provided with an aeration hole communicated with the aeration pipeline. The argon-blowing prefabricated member solves the problems that the peripheries of the baking hole and the plug hole are deformed ...

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Номер записи: 1
01-06-2011 дата публикации

Continuous casting tundish for improving cleanliness of molten steel

Номер: CN0102078957A
Автор: FAXING LI, JIANHUA PEI, WEI ZHANG, YONGXI SUN, ZUOCANG MA, GUOQIANG DU, SHENGPENG DOU, LIJUN WANG, ZHENMING SHI, LI FAXING, PEI JIANHUA, ZHANG WEI, SUN YONGXI, MA ZUOCANG, DU GUOQIANG, DOU SHENGPENG, WANG LIJUN, SHI ZHENMING
Принадлежит:

The invention discloses a continuous casting tundish for improving cleanliness of molten steel and belongs to the field of ferrous metallurgy technology. The continuous casting tundish comprises a tundish, porous bricks, an overflow groove, a slag blocking wall and a dam. The continuous casting tundish for improving cleanliness of molten steel provided by the invention makes full use of the double effects of argon foam stirring and cleaning, is safe, practical, simple and convenient, can obviously improve the separation effect of impurities and gases in the molten steel and improve the cleanliness of the molten steel and the quality of billet steel and the like.

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Номер записи: 2
02-02-2011 дата публикации

Multi-element alloyed ultrahigh-strength sucker rod steel and manufacturing method thereof

Номер: CN0101962737A
Автор: ZHENGLONG ZHAI, GUANGLIAN WANG, WENYING GE, LIJUN WANG, XIUFENG LI, LIPING ZHANG, DEGANG ZHAO, ZHENMING SHI, YECAI LI, GUANGZHEN LI, NA LIANG, XIANLING QI, ZHAI ZHENGLONG, WANG GUANGLIAN, GE WENYING, WANG LIJUN, LI XIUFENG, ZHANG LIPING, ZHAO DEGANG, SHI ZHENMING, LI YECAI, LI GUANGZHEN, LIANG NA, QI XIANLING
Принадлежит:

The invention relates to a multi-element alloyed ultrahigh-strength sucker rod steel and a manufacturing method thereof. The sucker rod steel comprises the following components in percentage by weight: 0.25 to 0.29 percent of C, 0.17 to 0.37 percent of Si, 0.50 to 0.70 percent of Mn, 0.95 to 1.20 percent of Cr, 0.18 to 0.25 percent of Mo, 0.005 to 0.025 percent of P, 0.001 to 0.025 percent of S, 0.015 to 0.050 percent of Al, 0.015 to 0.050 percent of Ti, less than or equal to 20ppm of [O], less than or equal to 3ppm of [H], and the balance of Fe and inevitable impurities. The steel has excellent comprehensive performance and long fatigue life, and is suitable for oil recovery operation of heavy and overload oil wells.

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Номер записи: 3
16-02-2011 дата публикации

45BM steel for caterpillar track pin roll and manufacturing method thereof

Номер: CN0101624675B
Автор: ZHENGLONG ZHAI, WENYING GE, XIKUN XU, JINGXIA SHEN, YECAI LI, DONG LU, ZUOCANG MA, ZHENMING SHI, BINGTAO MA, ZHAI ZHENGLONG, GE WENYING, XU XIKUN, SHEN JINGXIA, LI YECAI, LU DONG, MA ZUOCANG, SHI ZHENMING, MA BINGTAO
Принадлежит:

The invention discloses a 45BM steel for a caterpillar track pin roll, comprising the components by weight percent: 0.43-0.47% of C, 0.17-0.35% of Si, 0.60-0.80% of Mn, 0.005-0.025% of P, 0.001-0.020% of S, 0.01-0.20% of Cr, 0.01-0.20% of Ni, 0.01-0.20% of Cu, 0.0005-0.0030% of B, 0.020-0.060% of Ti, 0.01-0.06% of Al and the rest of Fe and unavoidable impurities. A manufacturing method of the 45BM steel comprises: electric furnace smelting, steel tapping, LF external refining and vacuum degassing (VD) treatment. The reduced molten steel is added with aluminium for finally deoxidization, titanium for nitrogen fixation and ferroboron for alloying after the VD treatment; casting blank is poured by continuous casting; the superheat temperature is 20-30 DEG C, the continuous casting speed is 0.9-1.20m/min, the uniform heating temperature of billet steel in a heating furnace is 1180-1220 DEG C, the heating time is 2.5-3h, the initial rolling temperature is 1100-1150 DEG C, and the final rolling ...

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Номер записи: 4
13-01-2010 дата публикации

45BM steel for caterpillar track pin roll and manufacturing method thereof

Номер: CN0101624675A
Автор: ZHENGLONG ZHAI, WENYING GE, XIKUN XU, JINGXIA SHEN, YECAI LI, DONG LU, ZUOCANG MA, ZHENMING SHI, BINGTAO MA, ZHAI ZHENGLONG, GE WENYING, XU XIKUN, SHEN JINGXIA, LI YECAI, LU DONG, MA ZUOCANG, SHI ZHENMING, MA BINGTAO
Принадлежит:

The invention discloses a 45BM steel for a caterpillar track pin roll, comprising the components by weight percent: 0.43-0.47% of C, 0.17-0.35% of Si, 0.60-0.80% of Mn, 0.005-0.025% of P, 0.001-0.020% of S, 0.01-0.20% of Cr, 0.01-0.20% of Ni, 0.01-0.20% of Cu, 0.0005-0.0030% of B, 0.020-0.060% of Ti, 0.01-0.06% of Al and the rest of Fe and unavoidable impurities. A manufacturing method of the 45BM steel comprises: electric furnace smelting, steel tapping, LF external refining and vacuum degassing (VD) treatment. The reduced molten steel is added with aluminium for finally deoxidization, titanium for nitrogen fixation and ferroboron for alloying after the VD treatment; casting blank is poured by continuous casting; the superheat temperature is 20-30 DEG C, the continuous casting speed is 0.9-1.20m/min, the uniform heating temperature of billet steel in a heating furnace is 1180-1220 DEG C, the heating time is 2.5-3h, the initial rolling temperature is 1100-1150 DEG C, and the final rolling ...

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Номер записи: 5
09-11-2011 дата публикации

Multifunctional model test system for tunnel and underground engineering

Номер: CN0102235942A
Автор: ZIXIN ZHANG, ZHENMING SHI, XIN HUANG, QINGHUA LEI, ZHANG ZIXIN, SHI ZHENMING, HUANG XIN, LEI QINGHUA
Принадлежит:

The invention relates to a multifunctional model test system for tunnel and underground engineering. The test system comprises a rail, a model box, a servo-controlled test loading device, a rotating seat, rotating shafts and a bracket, wherein the rail is arranged on the upper part of the test system; the model box is arranged on the middle part of the test system and comprises an outer frame, an inner frame and an organic glass plate; the servo-controlled test loading device comprises a horizontal loading jack and a vertical loading jack; the rotating shafts are arranged on the two sides of the middle part of the test system; and the rotating seat is arranged on the back surface of the upper part of the test system and is connected with the bracket through a rotating loading cylinder. The system can perform a model test on a block system, rock tunnel excavation, a tunnel chamber, a tunnel group, a side slope, shield excavation and building traversing, has a facade rotating loading function ...

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Номер записи: 6