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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 8. Отображено 8.
10-06-2015 дата публикации

Production method for low-carbon low-silicon steel

Номер: CN104694819A
Автор: ZHANG HAIMIN, DING ZHONG, YE YONG, GAO JINGCHAO, CUI MEITANG, LIU JIANWEI, TONG SHENGGANG, SUN ZHENGQU, SHI TAO
Принадлежит:

The invention provides a production method for low-carbon low-silicon steel. The production method comprises the steps of molten iron pretreating, converter steelmaking, CAS refining, RH refining and continuous casting. According to the production method, an LF refining process is cancelled, and the slagging function is allocated to the other processes; it is guaranteed that S in furnace-in molten iron is at a low level, and the Si returning degree in the desulfuration process of subsequent processes is reduced; a double slag stopping process is adopted in the steel tapping process, strong deoxidizing is performed by adding lime and aluminum blocks when steel tapping is performed, manganese metal is added in the half of the steel tapping process and the ladle bottom is opened to be blown into argon in the whole steel tapping process. According to the production method, by improving the technological process of the low-carbon low-silicon steel and paying attention to enhancing the control ...

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Номер записи: 1
01-12-2017 дата публикации

Technological method for eliminating cold rolling coil corrosion defects

Номер: CN0107419074A
Автор: LIU LI, LIANG BAOGUO, XU WEIGUO, CHEN QINGJUN, SUN ZHENGQU, LIU JINGHUA
Принадлежит:

The invention belongs to the technical field of surface defect treatment of cold rolling precision strip steel, and particularly relates to a technological method for eliminating cold rolling coil corrosion defects. The technological method for eliminating the cold rolling coil corrosion defects includes the following steps that (1) a temperature program is set; (2) an atmosphere program is set in a segmented mode according to the changing process of the steel coil temperature; and (3) heat preservation time is set. The technological method has the beneficial effects that (1) the bad influence on usability of annealed steel coils can be avoided; (2) the temperature range within which hydrogen and iron oxide carry out a reduction reaction is accurately found; and (4) the heating program is set based on hydrogen reduced iron oxide, heating is ended immediately when the reduction reaction is ended, full-speed heating is adopted, the technological period is shortened, the defect coil treatment ...

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Номер записи: 2
09-05-2023 дата публикации

Method and system for converter blowing control based on CO content curve

Номер: CN116083677A
Автор: WANG NIANXIN, ZENG HUI, SUN ZHENGQU, XU WEIKANG, CAO XIANFENG, TIAN CHAO, ZHANG GE, LUAN JIYI, CHEN WANFU, DONG HONGZHUANG, YUAN YUHAO
Принадлежит:

The invention discloses a method and system for converter blowing control based on a CO content curve. The method comprises the steps that firstly, a historical heat database is established, and original data corresponding to the current furnace entering condition is collected; according to the original data corresponding to the current charging condition, generating an actual CO content curve of the current heat; adding the current charging condition and the corresponding original data into a historical heat database, and calculating to obtain a CO content fitting curve library and a corresponding confidence interval under various types of charging conditions by adopting a big data regression analysis method; determining a CO content fitting curve of the same type as the current charging condition from the CO content historical data fitting curve library according to the current charging condition, and defining the CO content fitting curve as a target CO content curve of the current heat ...

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Номер записи: 3
20-08-2014 дата публикации

Method for producing cold-rolled strip for fire distinguisher

Номер: CN103990649A
Автор: WEN QINGSHAN, SUN HAO, GAO CHUANHUA, LU QINGXIANG, LIU LI, WU DONGMEI, CHENG LONG, LIU AIMIN, HU GUOXIONG, SUN ZHENGQU, JU CHUANHUA
Принадлежит:

The invention provides a method for producing a cold-rolled strip for a fire distinguisher. A hot rolling acid pickling raw material with the thickness of 2.5-5.0 mm and the width of 800-1550 mm is selected to be cold-rolled to be 0.7-2.0 mm, the total reduction rate is controlled to be 60-80%, a transverse thickness error of the strip keeps between -0.03 mm to +0 mm, and meanwhile a longitudinal thickness error keeps within 20 micrometers; the cold-rolled strip is placed into a bell-type annealing furnace with HPH, and heating, heat preserving, cooling with a hood, air cooling, water cooling, recrystallizing and annealing are carried out; finally, wet skin rolling and splitting shearing are carried out, and the cold-rolled strip for the fire distinguisher is obtained. A thickness error of the produced cold-rolled strip for the fire distinguisher is controlled to range from -0,03 mm to 0 mm, a thickness error in the width direction is within +/-20 micrometers, the hardness of the cold-rolled ...

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Номер записи: 4
12-08-2015 дата публикации

Liquid steel nitrogen increasing device and method for controlling steel tapping procedures

Номер: CN104831017A
Автор: SUN ZHENGQU, LIU LI, MA HONGDE, DING ZHONG, YANG YONG, ZHANG HAIMIN, TONG SHENGGANG, LIU GUO, YE YONG, ZHANG LIBIAO, KONG XIANGHUI
Принадлежит:

The invention discloses a liquid steel nitrogen adding device for controlling steel tapping procedures. The liquid steel nitrogen adding device comprises a cylindrical argon plug, electric stop valves and electric flow regulating valves. The cylindrical argon plug sleeves a steel tapping opening, two argon plug rings are uniformly distributed at the lower end of the cylindrical argon plug, and a plurality of argon holes are formed in the two argon plug rings in a staggered manner; a plurality of argon pipelines which are communicated with the argon holes are uniformly arranged in the cylindrical argon plug in a staggered manner; argon metal hoses are externally connected with the argon pipelines and are connected with argon sources, the electric stop valves and the electric flow regulating valves respectively. A method for controlling the steel tapping procedures includes enabling pipeline argon to flow before the steel tapping procedures are carried out; enabling argon in the inner ring ...

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Номер записи: 5
08-07-2015 дата публикации

Production method of hydrogen induced cracking resistant steel

Номер: CN104762434A
Автор: DIAO CHENGMIN, DING ZHONG, LIU FEI, LI CAIXIA, LIU GUO, SUN ZHENGQU, DU HAISHENG, KONG YA, WANG XIANYU, SUN XIUJU
Принадлежит:

The invention discloses a production method of hydrogen induced cracking resisting steel. The production method comprises the steps of molten iron pretreatment, converter blowing, CAS slag washing, LF furnace refining, RH furnace dehydrogenation and continuous casting. By adopting a refining slag synthetic technology, the initial refining slag alkalinity is controlled to be about 4.0, wherein the weight percentage of FeO and MnO is less than 1%, the weight percentage of Al2O3 is more than or equal to 20%, and the weight percentage of CaO is more than or equal to 45%; a large-flow argon blowing stirring technology is adopted; a temperature control technology is adopted, the temperature of molten steel before LF furnace slag washing is 1550-1570 DEG C, and the temperature of the slag washing process is 1580-1600 DEG C to ensure that the weight percentage of sulfur is effectively controlled within 0.0020%, the average weight percentage of sulfur is 0.0012%, and the lowest weight percentage ...

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Номер записи: 6
25-06-2014 дата публикации

Oxygen gun opening nitrogen sealing device

Номер: CN103882179A
Автор: ZHANG RUNSHENG, SUN ZHENGQU, LIU LI, XUN WENZHU, ZHANG MINGYA, LIU JIANWEI, LI SHOUJIN, WANG LINGLONG, KONG YA
Принадлежит:

The invention relates to equipment belonging to the field of converter steelmaking, and in particular relates to an oxygen gun opening nitrogen sealing device. The nitrogen sealing device comprises a nitrogen sealing plug and a nitrogen sealing base, wherein the nitrogen sealing plug comprises an upper big-port end and a lower small-port end; matched sealing surfaces are formed by the outer surface of the nitrogen sealing plug and the inner surface of the nitrogen sealing base; an oxygen gun opening is formed in the nitrogen sealing base; an oxygen gun is sleeved with the nitrogen sealing plug; a nitrogen sealing round hole I is formed in the lower part of the nitrogen sealing plug; the nitrogen sealing round hole I is communicated with a plurality of nitrogen channels I; a nitrogen sealing round hole II is formed in the upper part of the nitrogen sealing plug; the nitrogen sealing round hole II is communicated with a plurality of nitrogen channels II; a conical cavity is formed in the ...

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Номер записи: 7
23-09-2015 дата публикации

Control tapping process molten steel nitrogen pick -up device

Номер: CN0204661756U
Автор: SUN ZHENGQU, LIU LI, MA HONGDE, DING ZHONG, YANG YONG, ZHANG HAIMIN, TONG SHENGGANG, LIU GUO, YE YONG, ZHANG LIBIAO, KONG XIANGHUI
Принадлежит:

The utility model discloses a control tapping process molten steel nitrogen pick -up device, including cylindrical argon blocking, electronic trip valve and electronic flow control valve, cylindrical argon blocking overlaps on the tapping hole, 2 argon blocking rings in a plurality of staggered arrangement argon gas holes of its lower extreme evenly distributed, even interlocking sets up a plurality ofly and argon gas pipeline argon gas hole UNICOM in the cylindrical argon blocking, the external argon gas metal collapsible tube of argon gas pipeline is connected with the argon gas source, and argon gas metal collapsible tube connects electronic trip valve and electronic flow control valve. Control method opens the pipeline argon gas before the tapping, ring and outer ring argon gas form two layers of cone argon gas layer in successively opening during the tapping, adjust electronic flow control valve control nitrogen gas size, the tapping finishes to close electronic trip valve. The utility ...

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Номер записи: 8