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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 5. Отображено 5.
06-06-2023 дата публикации

Method for reducing calcium aluminate inclusions

Номер: CN116213691A
Автор: LUO YANZHAO, JIA LIUBING, LIU HONGMING, LIU YANQIANG, XIAO MAOYUAN, WEN HAN, WANG SHAOJUN, HE WENYUAN, GUAN SHUNKUAN, YANG XIAOSHAN, ZHOU HAICHEN, JI CHENXI, XIAO HUASHENG, LIU JINGANG, ZHAO CHANGLIANG
Принадлежит:

The embodiment of the invention provides a method for reducing calcium aluminate inclusions. The method comprises the steps that molten steel is cast into a steel ladle through a converter; the steel ladle is used for casting a tundish, steel remaining operation is carried out in the process that the tundish is cast through the steel ladle, and the steel remaining operation is that part of molten steel is left in the steel ladle in the casting process. The steel remaining operation is carried out in the process that the tundish is cast through the steel ladle, part of calcium aluminate inclusions can be prevented from entering the tundish, the proportion of the calcium aluminate inclusions in a casting blank and a plate coil is obviously improved, and therefore the percent of pass of stamped products is increased.

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Номер записи: 1
02-06-2023 дата публикации

Steel with low content of tiny inclusions and preparation method thereof

Номер: CN116200643A
Автор: LUO YANZHAO, JIA LIUBING, XU HAIWEI, WANG SHAOJUN, WEN HAN, WANG LEICHUAN, LIU YANQIANG, LIU JINGANG, JI CHENXI, SHAN WEI, HE WENYUAN, GUAN SHUNKUAN, XIAO HUASHENG, DENG XIAOXUAN, SHAO XIAOJING, LIU BAISONG, ZHAO CHANGLIANG
Принадлежит:

The invention particularly relates to steel with low tiny inclusion content and a preparation method thereof, and belongs to the technical field of steel preparation. The method comprises the steps that molten iron is subjected to converter smelting, and converter molten steel is obtained; the converter molten steel is refined; refined molten steel is obtained; continuously casting the refined molten steel to obtain a steel billet; refining slag is added in the tapping process of converter smelting, the refining slag comprises lime, and the using amount of the lime meets the set amount so that the CaO/Al2O3 ratio of the slag can be increased; adsorption and removal of inclusions are promoted by controlling the adding amount of the lime and increasing the ratio of CaO to Al2O3 in the slag, removal of the tiny inclusions is enhanced, and the problem that the content of the tiny inclusions in current steel is large is solved.

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Номер записи: 2
29-06-2016 дата публикации

Continuous casting is with conveyor of liquid covering slag

Номер: CN0205341853U
Автор: CUI YUANYUAN, YIN NA, ZHANG LIJUN, HU WEIDONG, CAO YONG, PENG KAIYU, LI HAIBO, FU SUGANG, LIU QINGMEI, ZHANG YINGHUA, ZHU SHAOJUN, LI ZHONGHUA, LUO YANZHAO, SHAO LONGSHENG, LIU GUOLIANG, WANG DONGLIANG, LI MINGYUAN, AN LANSONG, PEI XINGWEI, ZHU JIANQIANG, WU YOUYI, LI NING
Принадлежит:

... 本实用新型涉及一种输渣管及连铸用液态保护渣的输送装置，输渣管包括：内管、防护层及加热元件；空心圆筒形的内管材质为石墨；防护层包裹在内管外；加热元件设置在防护层外。该输送装置包括：输渣管、储渣器及节流阀；储渣器为一端开口的空心筒体；储渣器外包裹第二防护层；第二防护层外设置第二加热元件；输渣管的入渣口与储渣器的封闭端连通固定，输渣管的出渣口设置在结晶器的浸入式水口的侧边；节流阀设置在输渣管的入渣口位置，起到截门贮流作用。该输送装置使得液态保护渣能够快速而均匀地铺满结晶器内钢液表面并能填充到凝固坯壳与结晶器壁的空隙内，能有效改善铸坯表面质量。 ...

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Номер записи: 3
09-06-2023 дата публикации

Method for avoiding cracking of high-speed brazed double-layer welded pipe in subsequent use

Номер: CN116237604A
Автор: ZHANG ZHIMIN, LIU GUANGHUI, LIU SHUNMING, LIU ZAIWANG, LUO YANZHAO, YANG LIBIN, LONG JIAMING, XIONG AIMING, TENG HUAXIANG, HAN YUN, XU HAIWEI, YU MENG, CAO RONGHUA, HUI YAJUN, LIANG XUAN
Принадлежит:

The invention provides a method for avoiding subsequent use cracking of a high-speed brazed double-layer welded pipe, which comprises the following steps: by controlling the brazing temperature, the brazing time and the cooling speed in the brazing process of the double-layer welded pipe, the obtained double-layer welded pipe has no Widmannstatten structure, and the metallographic structure meets the following conditions: (1) n is greater than N/0.7 * 20, in the formula, n represents the number of crystal grains penetrating through the whole wall thickness of the double-layer welded pipe, and n represents the number of crystal grains penetrating through the whole wall thickness of the double-layer welded pipe; n represents the wall thickness of the double-layer welded pipe; (2) the diameter of the crystal grains is less than 35 microns; and (3) the total area of the large crystal grains and the small crystal grains is smaller than 20% of the total area of the metallographic structure of ...

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Номер записи: 4
06-06-2023 дата публикации

DI material and smelting method thereof

Номер: CN116219104A
Автор: LUO YANZHAO, JIA LIUBING, LIU YANQIANG, WANG SHAOJUN, WEN HAN, WANG LEICHUAN, XU HAIWEI, LIU JINGANG, JI CHENXI, SHAN WEI, HE WENYUAN, ZHANG CONGCONG, FANG YUAN, LIU BAISONG, ZHAO CHANGLIANG
Принадлежит:

The invention particularly relates to a DI material and a smelting method thereof, and belongs to the technical field of steel smelting. The method comprises the steps that molten iron is subjected to converter smelting, and converter molten steel is obtained; the converter molten steel is refined; refined molten steel is obtained; continuously casting the refined molten steel to obtain a steel billet; in the converter smelting process, the converter bottom blowing flow is controlled to meet the set flow; in the refining process, the pure circulation time is controlled to meet the set time, the adding amount of the refining outbound slag balls is controlled to meet the set amount, and oxygen blowing and temperature rising are not carried out in the whole refining process; in the continuous casting process, the pulling speed is controlled to meet the set pulling speed, so that slag entrapment caused by molten steel fluctuation is prevented; the steady state is kept by controlling the bottom ...

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Номер записи: 5