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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.
13-06-2023 дата публикации

Method and device for calculating lagging flood peak time of sand peak in front of reservoir dam

Номер: CN116257725A
Автор: ZHANG BANGWEN, DENG ANJUN, WANG DANGWEI, ZHAO QINGXU, DONG ZHANDI, YANG JING, LE MAOHUA, CUI TONGHUAN, XIE YIQIN, XIE JING
Принадлежит:

The invention discloses a method and a device for calculating the lagging flood peak time of a sand peak in front of a reservoir dam, and the method comprises the steps: carrying out the calculation of the lagging flood peak time of the sand peak in front of the reservoir dam according to the hydrological elements of the reservoir tail based on the flood and sand peak propagation law of the reservoir from upstream to downstream; calculating the time when the reservoir tail sand peak lags behind the flood peak, the time when the reservoir entering flood peak spreads to the front of the dam and the time when the reservoir entering sand peak spreads to the front of the dam; and then calculating the time that the reservoir sand peak lags behind the flood peak according to the time that the reservoir tail sand peak lags behind the flood peak, the time that the reservoir entering flood peak spreads to the front of the dam and the time that the reservoir entering sand peak spreads to the front ...

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Номер записи: 1
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: 2
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: 3
28-04-2023 дата публикации

Accurate orientation structure of oil sprayer

Номер: CN116025494A
Автор: XIE LIANG, LI XIANGRONG, CHANG JIANG, ZHAO YI, SUN JIANCHAO, ZHAO QINGXU
Принадлежит:

The invention discloses an accurate orientation structure of an oil injector. According to the accurate orientation structure of the oil injector, a high-pressure oil duct is arranged in an oil injector body, and positioning protrusions are arranged on the peripheral face; the nozzle is fixedly installed at one end of the oil sprayer body through a tightening cap, and a plurality of oil spraying holes are distributed in the peripheral face of the end, extending out of the oil sprayer body, of the nozzle in the circumferential direction. An oil sprayer mounting hole is formed in the cylinder cover, and a positioning groove extending in the axial direction of the oil sprayer mounting hole is formed in the oil sprayer mounting hole; the locking piece is arranged on the peripheral side of the oil sprayer body in a sleeving mode and provided with external threads. The positioning protrusion is contained in the positioning groove in a shape matched mode, the external thread of the locking piece ...

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Номер записи: 4
13-06-2023 дата публикации

Gel material prepared from arsenic-containing solid waste as well as preparation method and application of gel material

Номер: CN116253539A
Автор: ZHOU XIAN, BAO CHONGJUN, SUN YANHUA, ZHAO QINGXU, YAO LIJIA, LI HENG, YUE YOUCHENG, CHEN JINGGE, LI YUZHANG, FENG WEIGUANG, LIANG ZHI, CUI JIAN, YAN SEN, DIAO WEIZHI
Принадлежит:

The invention discloses a gel material prepared from arsenic-containing solid waste as well as a preparation method and application of the gel material. The gel material prepared from the arsenic-containing solid waste is prepared by taking the arsenic-containing solid waste and waste residues as raw materials through the steps of ultrasonic oil bath, iron-containing phase lifting and sintering. The problems that the arsenic adsorption effect in sewage is poor, arsenic is difficult to remove, the treatment difficulty is large, the cost is high, a large amount of arsenic-containing solid waste in the environment cannot be treated, the environment is polluted due to stockpiling and the like are solved, meanwhile, the arsenic-containing solid waste is utilized to form a binding material to serve as a base body, the solid waste is utilized, and waste is treated with waste.

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Номер записи: 5
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: 6
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: 7
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: 8
23-06-2023 дата публикации

Zinc-aluminum alloy powder mechanochemical deposition method

Номер: CN116288296A
Автор: WANG SHENGMIN, ZHAO KAI, ZHAO XIAOJUN, ZHAO QINGXU
Принадлежит:

The invention discloses a mechanochemical deposition method for zinc-aluminum alloy powder, and belongs to the field of surface protection of steel parts. The main technological process comprises the steps of pretreatment of a workpiece to be plated, activation of zinc-aluminum alloy powder, preparation of a base layer, heat treatment, cyclic thickening of a zinc-aluminum alloy plating layer, strengthening, aftertreatment and the like. The method is different from a traditional mechanical plating process, alloy powder is activated firstly, an inert oxide layer on the surface of zinc-aluminum alloy powder is destroyed, the zinc-aluminum alloy powder is promoted to be adsorbed and deposited on the surface of a steel workpiece, heat treatment is conducted after a base layer is prepared, the bonding strength between a plating layer and a base material is enhanced, and after circulation thickening is completed, the surface of the steel workpiece is thickened. And finally, a uniform and compact ...

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Номер записи: 9
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: 10