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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 10. Отображено 10.
01-08-2023 дата публикации

Method for controlling forms of non-quenched and tempered steel smelting inclusions

Номер: CN116516104A
Автор: SUN ZONGHUI, XIE HUI, WANG YI, CHU SHIHAO, SUN GENLING, LIU CHENGBAO, XU RONGCHANG, YAN YINGJIAO, SHAO ZHENGWEI, HAN JIE
Принадлежит:

The invention relates to the technical field of steel and iron smelting, in particular to a non-quenched and tempered steel smelting inclusion form control method which comprises the steps of burdening, electric furnace smelting, deoxidation alloying, refining, continuous casting, pit entering slow cooling, rolling and controlled cooling. Wherein refining comprises LF furnace refining and VD refining furnace vacuum degassing treatment, after vacuum breaking of a VD refining furnace, rare earth calcium alloy cored wires are fed into molten steel, and the feeding amount is 1-5 meters per ton of steel. The rare earth calcium alloy is adopted to perform denaturation treatment on the inclusions in the steel, the cleanliness of the molten steel is improved, refining and dispersion distribution of the inclusions are promoted, sulfide is formed or serves as a nucleation core of the sulfide, then the attribute and the final form of the sulfide are changed, and the content of the sulfide in the molten ...

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Номер записи: 1
13-06-2023 дата публикации

Converter oxygen lance muzzle smoke dust treatment device and method

Номер: CN116254383A
Автор: WANG NIANXIN, CHU SHIHAO, CAO XIANFENG, ZENG HUI, WANG XING, SUN ZONGHUI, TIAN CHAO, ZHOU MING, LI HAIFENG, XU JINBAO, ZHANG LIANG
Принадлежит:

The invention belongs to the field of converter blowing oxygen lance muzzle dust suppression treatment, and particularly relates to a converter oxygen lance muzzle smoke dust treatment device and method.The converter oxygen lance muzzle smoke dust treatment device comprises an oxygen lance hole platform, an oxygen lance muzzle base is arranged on the oxygen lance hole platform, a nitrogen sealing plug is installed above the oxygen lance muzzle base, and the nitrogen sealing plug penetrates through an oxygen lance. The upper end face of the nitrogen sealing plug is fixedly connected with a gas collecting hood, a plurality of suction holes are formed in the outer side of the gas collecting hood, each suction hole is connected with a metal hose, all the metal hoses are gathered and connected to a gas collecting header pipe, the gas collecting header pipe is connected to the bottom of a treatment water tank, the upper portion of the treatment water tank is connected with a smoke outlet pipe ...

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Номер записи: 2
04-08-2023 дата публикации

Medium-high-temperature heavy-duty bearing steel and production process thereof

Номер: CN116536569A
Автор: SUN ZONGHUI, XU RONGCHANG, YAN YINGJIAO, XIE HUI, WANG YI, CHU SHIHAO, SUN GENLING, LIU CHENGBAO, SHAO ZHENGWEI, HAN JIE
Принадлежит:

The invention relates to the technical field of ferrous metallurgy, in particular to medium-high temperature heavy-duty bearing steel and a production process thereof. The production process comprises the following steps of burdening, primary smelting furnace smelting, LF furnace refining and VD/RH vacuum degassing treatment, continuous casting and controlled rolling and controlled cooling. According to the medium-high temperature heavy-duty bearing steel, reasonable component design is adopted, refining and dispersive distribution of inclusions are promoted while the cleanliness of molten steel is improved, a controlled rolling and controlled cooling process is adopted, the uniformity and structure refining of carbides are guaranteed, and the medium-high temperature heavy-duty bearing steel is suitable for the working conditions that the working temperature ranges from 150 DEG C to 250 DEG C, and the allowable contact stress is 4 GPa or above.

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Номер записи: 3
23-09-2015 дата публикации

Method for welding large-thickness slabs having high alloy content

Номер: CN104923935A
Автор: LI MIN, LIU XIAODONG, XU HONGQING, LI WANGSHENG, WANG HUANYANG, ZHU YANSHAN, XIAO FENGQIANG, WANG NANHUI, CHU SHIHAO
Принадлежит:

The invention belongs to the field of ferrous metallurgy, and specifically discloses a method for welding large-thickness slabs having high alloy content. The method comprises following steps: a. taking at least two continuous casting slabs having high alloy content as raw materials, removing oxide layers on surfaces to be jointed of the continuous casting slabs in a mechanical milling manner, and machining edges of the continuous casting slab joint surfaces to form L-shaped steps; b. surfacing stainless steel transition layers on the L-shaped steps in a stainless steel strip surfacing manner, and machining the continuous casting slabs in the mechanical milling manner to form cuboids having the same size; c. aligning and stacking the continuous casting slabs, and performing fixed-position welding on the continuous casting slabs in an arc welding manner; and d. placing the continuous casting slabs in a vacuum chamber, and welding gaps between the continuous casting slabs by the use of electron ...

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Номер записи: 4
04-08-2023 дата публикации

Reforming furnace, low-carbon blast furnace ironmaking system and method thereof

Номер: CN116536463A
Автор: WANG KUN, WANG ZHONGXUE, GENG FEI, GAO HU, CHU SHIHAO, TIAN CHAO, LIU ZHIWEI
Принадлежит:

The invention belongs to the technical field of blast furnace ironmaking, and particularly relates to a reforming furnace and a low-carbon blast furnace ironmaking system and method. The reforming furnace adopts an electric heating internal heat supply mode, a plurality of groups of electric heating bodies are arranged in the reforming furnace, and the catalyst for the reforming reaction of the blast furnace gas and the coke oven gas is filled among the plurality of groups of electric heating bodies in the reforming furnace. The CO2 in the blast furnace gas and CH4 in the coke oven gas consumed in the reforming process are converted into CO and H2 to be recycled, and the temperature of the output reforming mixed gas is in the range of 850-1000 DEG C, so that the coke consumption in the blast furnace system is greatly reduced, and the chemical energy of the coke and the injection reducing gas is utilized to the maximum extent.

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Номер записи: 5
13-07-2011 дата публикации

Method for improving strength and toughness of high-strength steel for coal machine by utilizing ultra-fast cooling and steel plate self-tempering technologies

Номер: CN0102121060A
Автор: WEIHUA SUN, HAO SUN, SHUE HU, JIMING ZHANG, DENGYI HOU, FENGQIANG XIAO, YONG FENG, SHANYU JIANG, HUILING JIA, QIBIAO HAN, SHIHAO CHU, SUN WEIHUA, SUN HAO, HU SHUE, ZHANG JIMING, HOU DENGYI, XIAO FENGQIANG, FENG YONG, JIANG SHANYU, JIA HUILING, HAN QIBIAO, CHU SHIHAO
Принадлежит:

The invention discloses a method for improving the strength and toughness of the high-strength steel for a coal machine by utilizing the ultra-fast cooling and steel plate self-tempering technologies. The method is characterized by comprising the following steps: heating a plate blank, performing rough rolling, performing finish rolling, performing ultra-fast cooling and performing steel plate self-tempering. Particularly, the soaking temperature and soaking time of the plate blank, the rough rolling initial rolling temperature, the rough rolling single-pass reduction ratio, the finish rolling initial rolling temperature, the finish rolling single-pass reduction ratio, the ultra-fast cooling initial cooling temperature, the ultra-fast cooling final cooling temperature, the ultra-fast cooling speed, the self-tempering stacking temperature, the self-tempering time and other parameters are controlled. Therefore, the produced high-strength steel for the coal machine has excellent combination ...

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Номер записи: 6
23-06-2023 дата публикации

Converter oxygen lance hole sealing device and method

Номер: CN116287537A
Автор: WANG NIANXIN, CHU SHIHAO, CHEN WEI, CAO XIANFENG, ZENG HUI, LI HAIFENG, TIAN CHAO, SUN ZONGHUI, ZHOU MING, XU JINBAO, ZHANG LIANG
Принадлежит:

The invention relates to the technical field of converter equipment, in particular to a converter oxygen lance hole sealing device and method.The converter oxygen lance hole sealing device comprises a flue gas storage tank, the lower portion of the flue gas storage tank is connected with a flue gas inlet pipe, the bottom of the flue gas storage tank is connected with a flue gas outlet pipe, the flue gas outlet pipe is connected with a pipeline for sealing gas, and a compression pump is arranged on the flue gas inlet pipe; and a pressure regulating valve is arranged on the flue gas outlet pipe. Smoke in the smoke inlet pipe is pressurized and conveyed into the smoke storage tank by the compression pump, the smoke in the smoke storage tank can enter the pipeline for sealing the gas through the smoke outlet pipe, and the smoke in the converter is used for replacing carbon dioxide, nitrogen or steam to seal the oxygen lance hole of the converter, so that the cost is greatly saved.

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Номер записи: 7
18-04-2023 дата публикации

System and method for injecting biomass fuel into coke oven

Номер: CN115975652A
Автор: WANG KUN, WANG ZHONGXUE, GENG FEI, CHU SHIHAO, TIAN CHAO, LIU ZHIWEI
Принадлежит:

The invention relates to the technical field of coke oven combustion, in particular to a system and method for injecting biomass fuel into a coke oven. The system comprises a biomass fuel crushing and screening device, a biomass fuel powder bin, a blowing and conveying device, a biomass fuel distributor, a coke oven flue, a high-temperature induced draft fan, a dust remover, a high-pressure blowing tank, a compressed air tank, a nitrogen tank and a coke oven, according to the method, biomass fuel is injected to the top of the combustion chamber, so that the consumption of coal gas can be effectively reduced, meanwhile, the range of a high-temperature area in the combustion chamber can be expanded, the temperature difference in the height direction of a furnace wall is reduced, and the heating uniformity of a coke bed layer in the coking process is improved; the use of coke oven gas or blast furnace gas in the combustion process of the coke oven can be effectively reduced, and the total ...

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Номер записи: 8
15-08-2023 дата публикации

Vibration reduction screen mesh vibrating screen

Номер: CN116586290A
Автор: CHEN WANFU, LIU FENGSHENG, LV HAIBIN, ZENG HUI, GAO ZHEN, CHU SHIHAO, SUH HONG-WON, WANG NIANXIN, ZHANG GE, ZHANG JINGXUAN
Принадлежит:

The invention belongs to the technical field of vibrating screens, and relates to a vibration-damping screen vibrating screen which comprises a base and a screen obliquely arranged above the base, a vibration motor is arranged on the screen, a vibration-damping transition piece is arranged between the screen and the base, and the vibration-damping transition piece is connected with the screen and the base through at least three vibration-damping springs. The at least three damping springs are distributed in a non-collinear mode. Vibration reduction transition pieces which are respectively connected with the screen and the base through vibration reduction springs are arranged between the screen and the base, so that the self weight is reduced, and the purpose of reducing the driving load of the vibration motor on the screen independently is achieved; the vibration reduction transition piece forms buffering between the screen and the base, impact force transmitted downwards when the screen ...

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Номер записи: 9
17-09-2014 дата публикации

Heavy-gauge critical hydrogen 12Cr2MolR steel plate and manufacturing method

Номер: CN104046900A
Автор: XIAO FENGQIANG, SUN WEIHUA, ZHAO QIAN, WANG JINHUA, SUN FENGXIAO, CUI JIAN, WANG SHAOLU, QIAO SONG, LIU XIAODONG, JIANG SHANYU, LI MIN, TANG GUOHONG, CHU SHIHAO, HU SHUE, ZHANG HONGLIN
Принадлежит:

The invention belongs to the field of metallic materials and specifically relates to a heavy-gauge critical hydrogen 12Cr2MolR steel plate and its manufacturing method. the steel plate provided by the invention is composed of the following components, by weight, 0.08-0.15% of C, Si being less than or equal to 0.10%, 0.30-0.60% of Mn, P being less than or equal to 0.010%, S being less than or equal to 0.010%, 2.0-2.50% of Cr, 0.90-1.10% of Mo, Sb being less than or equal to 0.003%, Sn being less than or equal to 0.010%, As being less than or equal to 0.010%, O being less than or equal to 0.002%, N being less than or equal to 0.004%, H being less than or equal to 0.0003%, and the balance Fe and unavoidable impurities. The invention has the following beneficial effects: limitation of carbon equivalent of steel by a continuous-casting vacuum-welding composite ply-rolling super-thick steel plate technology are broken through; bottle-necks of poor welding property and rigorous welding conditions ...

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Номер записи: 10