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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 9. Отображено 9.
23-06-2023 дата публикации

Aluminum-titanium-boron grain refiner and preparation method thereof

Номер: CN116287835A
Автор: CHEN YUE, FENG SHAOTANG, LI HENG, TANG HAOYUAN, TAN GUOYIN, SUN YANHUA, YUE YOUCHENG, CHEN JINGGE, ZHANG WEI, LI YUZHANG, ZHANG YONGPING, LI YUGENG, LEI HUAZHI, FENG WEIGUANG, CHEN XIN, YAO LIJIA, ZHAO QINGXU
Принадлежит:

The invention relates to an aluminum-titanium-boron grain refiner and a preparation method thereof. The aluminum-titanium-boron grain refiner is prepared by taking titanium powder, potassium fluoborate, potassium fluotitanate, potassium fluoroaluminate and pure aluminum as raw materials, the aluminum-titanium-boron grain refiner has two phases of TiAl3 and TiB2, TiB2 particles are spherical particles and are uniformly distributed, and the size of the TiB2 particles is 0.5-1.5 microns; tiAl3 is a block with a small acute angle and is uniformly distributed in a dispersed shape, and the size of the TiAl3 is smaller than 50 microns. The production process is simple, the raw materials are wide in source, the prepared aluminum-titanium-boron refining refiner alloy has two phases of TiAl3 and TiB2, the TiAl3 phase is in the shape of a block with a small acute angle, is uniformly distributed in a dispersed shape and is free of aggregation and clustering phenomena, and the size is mostly smaller ...

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Номер записи: 1
30-05-2023 дата публикации

Superfine metal powder centrifugal atomization device

Номер: CN116174734A
Автор: ZHAO QINGXU, ZHOU XIAN, YAO LIJIA, SUN YANHUA, LI HENG, LI YUGENG, BAO CHONGJUN, ZHANG YONGPING, ZHANG WEI, CHEN JINGGE, LI YUZHANG, FENG WEIGUANG, LEI HUAZHI, YAN SEN, DIAO WEIZHI
Принадлежит:

The invention discloses a superfine metal powder centrifugal atomization device which is characterized in that a liquid storage tank is communicated with a smelting furnace through a liquid discharge valve, the smelting furnace and/or the liquid storage tank are/is communicated with a hot air system through an air supply pipe, a liquid outlet pipe of the liquid storage tank penetrates through the top surface of a spray tower, a nozzle is fixed at the lower end of the liquid outlet pipe, and a plurality of inclined downward nozzles are uniformly distributed on the nozzle; a ring is coaxially fixed to the top face of the atomizing disc, a plurality of vertical grooves are evenly distributed in the inner side wall of the ring, the upper portions of the grooves penetrate through the top face of the ring, and the lower portions of the grooves extend to the top face of the atomizing disc. The atomizing disc and a motor shaft of the motor are coaxially fixed, and the motor is fixed to the inner ...

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Номер записи: 2
23-06-2023 дата публикации

Composite refining alterant for casting aluminum-silicon alloy and application of composite refining alterant

Номер: CN116287836A
Автор: SUN YANHUA, FENG WEIGUANG, YUE YOUCHENG, XU FUSHUN, LI YUZHANG, LI YUGENG, BAO CHONGJUN, ZHANG YIJIE, CHEN JINGGE, LEI HUAZHI, ZHANG HUI, DIAO WEIZHI, CHEN YUE, ZHANG WEI, YAN SEN
Принадлежит:

The invention discloses a composite refining alterant for casting an aluminum-silicon alloy, which is characterized in that Al-10Sr, Al-10Y intermediate alloy and a titanium agent are used as the composite refining alterant, the adding proportion of Sr is 0.01-0.05% of the total mass of the aluminum alloy, the adding proportion of Y is 0.1-0.5% of the total mass of the aluminum alloy, and the adding proportion of Ti is 0.01-0.15% of the total mass of the aluminum alloy. The composite refining modifier treats an alloy melt, the modification effect is maintained for a long time, meanwhile, the air suction reaction caused by traditional Al-Sr modification is avoided, a heterogeneous nucleation core is more efficiently formed in the melt, alpha-Al grains are finer, eutectic Si is in a fiber shape or a coralline shape, and therefore the alloy performance is improved. And the microstructure of the cast aluminum-silicon alloy is obviously improved, and the mechanical property of the product is ...

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Номер записи: 3
04-08-2023 дата публикации

System and method for preparing metal germanium

Номер: CN116536532A
Автор: CUI DINGFANG, LEI HUAZHI, ZI GUANGPING, HE XINGJUN, MIAO YANMEI, CHEN JUNXIAO, JI HONGJIA
Принадлежит:

According to the system and method for preparing the metal germanium, hydrogen is adopted for directly reducing germanium tetrachloride to prepare the metal germanium, a corresponding tail gas comprehensive recovery and treatment system is matched, raw material recycling is achieved, the reaction is closed, new impurity elements are not introduced, and the product quality can be guaranteed. Meanwhile, internal circulation of elements is achieved, especially after the chlorine element and germanium tetrachloride are reduced, the chlorine element forms hydrogen chloride, the hydrogen chloride gas forms hydrochloric acid after being recycled, the hydrochloric acid is subjected to chlorination distillation, germanium tetrachloride is obtained, the problem of waste acid treatment in actual production is solved, and good economic and environment-friendly benefits are achieved. The method has the advantages of being short in technological process, high in raw material utilization rate, almost ...

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Номер записи: 4
09-06-2023 дата публикации

Preparation method of Pb-Ag-Ca-Sr-Ce anode plate for zinc hydrometallurgy electrodeposition

Номер: CN116240410A
Автор: LI YUGENG, YANG XIAOXIAO, SUN YANHUA, LI YUZHANG, LEI HUAZHI, YUE YOUCHENG, FENG WEIGUANG, ZHANG YONGPING, LIANG ZHI, BAO CHONGJUN, DIAO WEIZHI, CHEN XIN, BAO ZHIQUN, TAN GUOYIN, ZHAO QINGXU, YAN SEN
Принадлежит:

The invention discloses a preparation method of a Pb-Ag-Ca-Sr-Ce anode plate for zinc hydrometallurgy electrodeposition. The Pb-Ag-Ca-Sr-Ce anode plate is prepared from the following raw materials in percentage by mass: 1.5-2.5% of Ca, 0.5-1.5% of Sr, 25-35% of Ag, 0.5-1.5% of Ce and the balance of Pb through the steps of intermediate alloy preparation, casting and aftertreatment. The lead-silver anode is applied to the zinc hydrometallurgy electrodeposition process, and compared with a traditional lead-silver anode, the effects of reducing the cell voltage, improving the plate surface strength, prolonging the service life and reducing the lead content of a cathode zinc sheet are achieved.

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Номер записи: 5
23-05-2023 дата публикации

Preparation method of lead-silver mixed rare earth multicomponent alloy anode plate for zinc hydrometallurgy electrodeposition

Номер: CN116144976A
Автор: LI YUGENG, YANG XIAOXIAO, SUN YANHUA, LI YUZHANG, LEI HUAZHI, YUE YOUCHENG, FENG WEIGUANG, ZHANG YONGPING, LIANG ZHI, BAO CHONGJUN, DIAO WEIZHI, CHEN XIN, BAO ZHIQUN, TAN GUOYIN, ZHAO QINGXU, YAN SEN
Принадлежит:

The invention discloses a preparation method of a lead-silver mischmetal multi-component alloy anode plate for zinc hydrometallurgy electrodeposition, the lead-silver mischmetal multi-component alloy anode plate is prepared from the following raw materials in percentage by mass: 5-8% of mischmetal, 0.25-0.35% of Ag and the balance of Pb through the steps of intermediate alloy preparation, casting and post-treatment, the lead-silver mischmetal multi-component alloy anode plate is applied to the zinc hydrometallurgy electrodeposition process, and compared with a traditional lead-silver anode, the lead-silver mischmetal multi-component alloy anode plate has the advantages that the production cost is reduced, and the production efficiency is improved. And the effects of reducing the cell voltage, improving the plate surface strength, prolonging the service life and reducing the lead content of the cathode zinc sheet are achieved.

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Номер записи: 6
09-06-2023 дата публикации

Method for improving modification effect of A356 alloy

Номер: CN116240418A
Автор: FENG WEIGUANG, YUE YOUCHENG, SUN YANHUA, XU FUSHUN, QUE YUNPENG, BAO CHONGJUN, LI YUZHANG, LI YUGENG, ZHANG YIJIE, ZHOU XIAN, ZHANG HUI, DIAO WEIZHI, LEI HUAZHI, ZHAO QINGXU, CHEN XIN, YAN SEN
Принадлежит:

The invention discloses a method for improving the modification effect of an A356 alloy, which comprises the following steps: smelting and refining the A356 alloy to obtain an A356 alloy melt; al-10Sr and Al-10Y intermediate alloys are used as composite refining modifiers, the use amount of Sr accounts for 0.02-0.06% of the total mass of the aluminum alloy, and the use amount of Y accounts for 0.1-0.5% of the total mass of the aluminum alloy; and after refining and slagging-off, casting into a mold to obtain a cast aluminum-silicon alloy product. According to the method, the alloy melt is treated by adding the composite refining modifier, the modification effect is maintained for a long time, meanwhile, the air suction reaction caused by traditional Al-Sr modification is avoided, a heterogeneous nucleation core is more efficiently formed in the melt, grains are finer, eutectic Si is in a particle shape or a long-strip shape or a local net shape, and the eutectic Si is more uniform. And ...

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Номер записи: 7
09-06-2023 дата публикации

Method for improving performance of cast aluminum-silicon alloy

Номер: CN116240417A
Автор: FENG WEIGUANG, XU FUSHUN, SUN YANHUA, QUE YUNPENG, YUE YOUCHENG, BAO CHONGJUN, LI YUZHANG, LI YUGENG, ZHANG YIJIE, ZHOU XIAN, ZHANG HUI, DIAO WEIZHI, CHEN XIN, LEI HUAZHI, ZHAO QINGXU, YAN SEN
Принадлежит:

The invention discloses a method for improving the performance of a cast aluminum-silicon alloy, which comprises the following steps of: smelting and refining the aluminum-silicon alloy to obtain an aluminum-silicon alloy melt; al-10Sr and Al-10Y intermediate alloys are used as composite refining modifiers, the use amount of Sr accounts for 0.02-0.06% of the total mass of the aluminum alloy, and the use amount of Y accounts for 0.1-0.5% of the total mass of the aluminum alloy; and after refining and slagging-off, casting into a mold to obtain a cast aluminum-silicon alloy product. According to the method, rapid smelting of the aluminum-silicon alloy is achieved through process optimization, the composite refining modificator is added to treat the alloy melt, the air suction reaction caused by traditional Al-Sr modification is avoided while the modification effect is maintained for a long time, a heterogeneous nucleation core is formed in the melt more efficiently, and the aluminum-silicon ...

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Номер записи: 8
23-06-2023 дата публикации

High-efficiency and low-consumption reaction device for removing heavy metals from contaminated acid in non-ferrous metal metallurgy

Номер: CN116282264A
Автор: FENG WEIGUANG, XU FUSHUN, BAO CHONGJUN, YUE YOUCHENG, SUN YANHUA, CHEN XIN, ZHANG YONGPING, LI YUZHANG, LI YUGENG, LEI HUAZHI, YANG XIAOXIAO
Принадлежит:

The invention discloses an efficient and low-consumption reaction device for removing heavy metals from contaminated acid in non-ferrous metal metallurgy. A feeder is communicated with a feeding hole of a mixing reactor through a pipeline; the feeder is of an annular structure, the front end of the feeder is communicated with the waste acid supply device, the rear end of the feeder is communicated with a feeding port of the mixing reactor, and at least two vulcanizing agent leading-in holes are evenly distributed in the circumferential direction of the feeder and communicated with the vulcanizing agent supply device; the mixing reactor is of a tubular structure, and a plurality of baffles are arranged in the mixing reactor at intervals and evenly distributed in the circumferential direction of the inner wall of the mixing reactor. The vulcanizing agent leading-in hole is formed in the feeder, so that a vulcanizing agent can be uniformly added into waste acid; a plurality of baffles are ...

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Номер записи: 9