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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.
27-07-2011 дата публикации

Aqueous magnetic slurry and preparation method thereof

Номер: CN0102134440A
Автор: YAJUN LIU, YANFENG LIU, JIAQIU LIU, LIU YAJUN, LIU YANFENG, LIU JIAQIU
Принадлежит:

The invention discloses aqueous magnetic slurry and a preparation method thereof. The magnetic slurry comprises the following component in part by weight: 50 to 80 parts of magnetic powder, 1 to 10 parts of carbon black, 1 to 10 parts of wetting and dispersing agent, 10 to 60 parts of binder, 0 to 10 parts of curing agent and 50 to 200 parts of water. The binder is a mixture of a water soluble binder and an emulsion binder, wherein the weight ratio of the water soluble binder to the emulsion binder is 1:5.5 to 1:20. The slurry has high flowability, improves the water resistance of the coating, reduces air bubbles and improves the spreading appearance of the coating. In the invention, due to the adoption of the two-step preparation method, the requirement of a formula system on the mechanical stability of the emulsion binder is lowered, the selection range of the binder is enlarged, the sanding amount of the slurry is reduced, the production efficiency of the slurry is improved, the air ...

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Номер записи: 1
11-08-2023 дата публикации

Composite material plane disc flange structure suitable for large sun orientation device of space station

Номер: CN116573162A
Автор: LIU ZIXIAN, LIU JIAQIU, MA ZHIFEI, FU ZHIBIN, DU HAN, XU WENBIN, TANG LIANG, LI HONG, QIAN ZHIYUAN, WANG ZHIYI
Принадлежит:

The invention relates to a large-size and high-rigidity integrated composite material plane disc flange structure suitable for a main structure of a large sun orientation device of a space station, and belongs to the field of sun orientation device design and manufacturing. Comprising a cabin interface flange body, various embedded parts, a TBA swing mechanism assembly installation precision adjusting gasket, a driving locking mechanism assembly supporting piece, a switching locking mechanism assembly installation precision adjusting gasket, other precision adjusting gaskets and an L-shaped circumferential reference piece. The structure can meet the requirement for 15-year long service life of a plane disc flange structure in a space station sun orientation device under the condition of high and low temperature alternation.

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Номер записи: 2
07-07-2023 дата публикации

Molding process and molding device for composite material cabin body of wet-process wound turned flange

Номер: CN116394540A
Автор: YU BO, ZHU NAN, CHI BO, ZHANG BOWEN, WANG WEI, LIU JIAQIU
Принадлежит:

The invention provides a forming process and a forming device for a composite cabin with a flange wound through a wet method, and belongs to the technical field of forming of composite cabins. The problems that only cabin bodies without flanges can be produced due to the characteristics of a wet winding process, but more and more products need to be connected or bear force through flange faces at present are solved. The forming process is easy to operate, the winding machine winding forming process is adopted, the process is stable, the defect that the flange cannot be integrally formed through wet winding of the composite material cabin section is overcome, and the application range of the composite material cabin section subjected to wet winding is widened.

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Номер записи: 3
18-07-2023 дата публикации

Testing device and testing method for measuring compression performance of variable-width sample

Номер: CN116448563A
Автор: CHEN YINGHAN, LIU JIAQIU, YANG JILONG, YU BAIFENG, WANG ZIQIAO, YI CUIYUN, WANG BAORUI, ZHOU LEI, CHEN YUNING, YU BO
Принадлежит:

The invention provides a testing device and a testing method for measuring the compression performance of a variable-width sample, and belongs to the technical field of composite material component testing. The problem that samples with different widths cannot be clamped and detected in the prior art is solved. The testing device comprises two sleeves, a bottom support and four clamps, the two sleeves are connected with each other, the bottom of one sleeve is connected with the bottom support, the clamps are arranged in the sleeves, the upper sleeve is sleeved with a limiting sleeve, the number of the clamps is four, grooves are formed in the clamps, aluminum sheets are arranged in the grooves, and the testing device is arranged on a mechanical testing machine. The device is mainly used for testing composite material components.

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Номер записи: 4
03-08-2005 дата публикации

Adhesive type magnetic strip

Номер: CN0001648943A
Автор: LIU JIAQIU, LI XIGANG, JIAQIU LIU, XIGANG LI
Принадлежит:

The present invention relates to magnetic strip and especially a kind of adhesive magnetic strip. The adhesive magnetic strip consists of protecting layer, magnetic layer, base belt and adhering layer. The adhering layer has the composition of polyurethane 5-15 wt%, polyethylene 10-50 wt%, stuffing 5-20 wt%, assistant 0.3-1.0 wt%, coupling agent 4-8 wt% and solvent 40-90 wt%, and the addition of the coupling agent raises the sticking strength of the magnetic strip effectively and improves the machining performance.

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Номер записи: 5
27-06-2023 дата публикации

Composite material cone forming device adopting double-vacuum-bag vacuumizing and forming method of composite material cone forming device

Номер: CN116330703A
Автор: YU BO, CHI BO, JING LEI, LIU JIAQIU, WANG WEI, CHEN YUNING, GAO CHUNPENG
Принадлежит:

The invention provides a double-vacuum-bag vacuumizing composite material cone forming device and a forming method thereof, and belongs to the technical field of composite material cone forming processes. The problems that an autoclave forming technology is high in cost, the technology is complex, and the manufacturing cost of a composite material cone is high are solved. Flexible pressurization is adopted, the fluidity of resin in reinforced fibers can be better improved, double-layer flexible pressurization can repeatedly pressurize the same position, bubbles in the resin are removed out of a product while the fluidity of the resin is improved, the bubbles of the product are reduced, and the internal quality of the product is improved. The method is easy to operate, cost is saved, the internal quality of the product is high, the product quality can reach the product quality of an autoclave, and the problems that an existing autoclave technology is high in cost and a non-autoclave technology ...

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Номер записи: 6
07-10-1998 дата публикации

Three times stroke rod oil-well pump

Номер: CN0002293661Y
Автор: LIU JIAQIU, JIAQIU LIU
Принадлежит: LIU JIAQIU

The utility model relates to an underground rod tubing oil well pump with three-time stroke for oil production. The utility model is characterized in that on the basis of an existing rod oil well pump, a pump barrel is lengthened, and three plunger draw rods are additionally arranged in an original hydraulic cylinder. When the utility model works, each plunger in the oil well pump can be contracted in the hydraulic cylinder simultaneously; when a pumping rod of a pumping unit on the ground is operated, the pumping rod can drive the plungers to move vertically, so that a piston can be extended out of or retracted into a stroke increasing liquid lever step by step, and the piston can play a role in increasing the stroke of a pump body; accordingly, the purpose of oil pumping with long stroke and large displacement under the condition of unchanging the stroke frequency of the pumping unit on the ground can be realized. The pump has the advantages of simple structure and low cost, so that the ...

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Номер записи: 7
01-08-2023 дата публикации

Layered thin-wall special-shaped stringer forming method and mold

Номер: CN116512635A
Автор: ZHOU XIUYAN, WANG ZIQIAO, KUANG NAIHANG, LIU JIAQIU, LUAN SHILIN, FAN BEIYUAN, XU CHONGYU, ZHOU LEI
Принадлежит:

The invention relates to the technical field of thin-wall truss forming, in particular to a forming method and a forming die for a laminated thin-wall special-shaped stringer. The forming method for the laminated thin-wall special-shaped stringer comprises the following steps that S1, it is checked that no protrusion or burr exists on the surfaces of an upper mold and a lower mold, normal-temperature curing glue is adopted for assembling and cementing, and the edges of the upper mold and the lower mold are aligned and assembled into a core mold without staggered joints; s2, the surfaces of the stretchable rubber sheets are coated with a release agent for at least three times, the stretchable rubber sheets are aired, normal-temperature curing glue is adopted, the stretchable rubber sheets are sequentially attached to the laying face of the assembled core mold in a natural state, all the stretchable rubber sheets are in smooth butt joint, air between the stretchable rubber sheets and the ...

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Номер записи: 8
18-04-2023 дата публикации

Cabin flange planeness trimming device and using method

Номер: CN115971581A
Автор: HAN SONG, YU BO, CHEN YUNING, LIU JIA, ZHANG BOWEN, LIU JIAQIU, WANG WEI
Принадлежит:

The invention discloses a cabin flange planeness trimming device and a using method, relates to the field of composite material machining, and solves the problems that manual bench worker trimming precision is low, stability is poor, numerical control machining trimming precision is high, the speed is high, enough using space is needed, and machining efficiency is high. And the planeness of the flange surface cannot be trimmed by entering the cabin section. The device comprises a main shaft, a datum beam and a scraper, wherein the datum beam and the scraper are mounted on the main shaft; the upper surface and the lower surface of the datum line beam are parallel to the surface of the scraper; the upper surface or the lower surface of the datum line beam abuts against the flange face at the end of the cabin section, the face of the scraper abuts against the flange face to be trimmed in the cabin section, and planeness trimming of the flange face in the cabin section is achieved with the ...

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Номер записи: 9