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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 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 7. Отображено 7.
04-07-2023 дата публикации

Transformer coil winding equipment

Номер: CN116387013A
Автор: YU XIAOKANG, YU PENG
Принадлежит:

The invention relates to the technical field of transformer production, in particular to transformer coil winding equipment which comprises a base, a winding mechanism and a pay-off mechanism. The winding mechanism is mounted at one end of the base so as to wind a copper wire on the outer side of the magnetic core; the pay-off mechanism is installed at the other end of the base so as to pay off a copper wire to the winding mechanism. The magnetic core can translate for the same distance in the axial direction after rotating for a circle, so that the distances between copper wires of all circles are the same, and the quality of the whole coil is greatly improved.

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Номер записи: 1
01-08-2023 дата публикации

Heat dissipation auxiliary mechanism of transformer and use method

Номер: CN116525249A
Автор: YU XIAOKANG, YU PENG
Принадлежит:

The invention discloses a heat dissipation auxiliary mechanism of a transformer and a using method, and relates to the technical field of transformer heat dissipation. Four transmission gears can be driven to rotate through rotation of a driving fluted disc, the transmission gears drive half gears to rotate through bevel gears, and the half gears are firstly engaged with a group of second teeth in the rotating process; when the half gear is separated from one group of teeth II and is meshed with teeth II on the other side, the sliding plate moves in the opposite direction, so that the sliding plate continuously reciprocates, and as the teeth I are meshed with the driving gear, the driving gear can drive the heat conduction column and the cooling fins to continuously swing; the cooling fins on the periphery of the transformer body are in a movable state and can blow airflow, the fluidity of air around the cooling fins is improved, heat can be rapidly dissipated through cooperation with the ...

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Номер записи: 2
01-07-2015 дата публикации

Preparation method of sulfate brace type benzoxazine resin

Номер: CN104744695A
Автор: YU XIAOKANG, ZHU ZHAOJIANG, ZHU GANG
Принадлежит:

The invention relates to a preparation method of sulfate brace type benzoxazine resin. The preparation method comprises the following steps: synthesizing sulfate brace type benzoxazine resin by taking phenol compounds, aldehyde and amine as reactants by adopting a solution method or a melting method under the action of a catalyst, uniformly mixing primary amine and aldehyde in an organic solvent, reacting for 10-60 minutes at 40-60 DEG C, then adding the phenol compounds and the catalyst into a mixture, heating to 60-120 DEG C, reacting for 1-8 hours, washing by water after reaction, and removing the solvent and residual water in a system to obtain a product. The sulfate brace type benzoxazine resin disclosed by the invention has relatively more aromatic rings in a molecular structure, and is high in sulfate group stability to ensure that the resin can obtain relatively good heat resistance and modulus after being cured; in cured molecules, the distance between molecular chains is relatively ...

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Номер записи: 3
18-08-2023 дата публикации

Device and method for preparing high-transmittance and high-boiling silicone oil

Номер: CN116603471A
Автор: CAO SONG, LUO YEDONG, GUO YUAN, SHU LONGSHENG, YU XIAOKANG
Принадлежит:

The invention discloses a device and a method for preparing high-light-transmittance and high-boiling silicone oil, relates to the technical field of organic silicon, and mainly aims to reduce the acid value of the high-boiling silicone oil and improve the light transmittance of the high-boiling silicone oil. According to the main technical scheme, the device for preparing the high-transmittance and high-boiling silicone oil comprises a reaction kettle, a water washing tank, an alkali washing tank, a fine washing tank, a water-oil layering device, an intermediate tank, a bag filter, an ultrasonic degassing tank and a finished product tank which are connected in sequence, wherein the reaction kettle is respectively connected to an organic silicon high-boiling residue pipeline, a methyl chlorosilane pipeline and a production water pipeline, the production water pipeline is also connected to the water washing tank and the fine washing tank, and the upper end of the reaction kettle is connected ...

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Номер записи: 4
01-08-2023 дата публикации

Online detection control system and method for 107 silicone rubber production

Номер: CN116510624A
Автор: CAO SONG, LUO YEDONG, GUO YUAN, ZENG XINGWANG, ZHANG LONGSHAN, YU XIAOKANG, ZENG MENGLIANG
Принадлежит:

The invention relates to the technical field of chemical equipment, in particular to an on-line detection control system for 107 silicone rubber production, which is characterized in that a polymerization kettle is provided with a material input pipe; a nitrogen inlet I is formed in the bottom of the polymerization kettle; a discharge hole of the phosphoric acid metering container is connected with the polymerization kettle; a sizing material outlet is formed in the bottom of the polymerization kettle; an inlet of the circulating pipeline is communicated with the sizing material outlet; an outlet of the circulating pipeline is communicated with the lower part of the polymerization kettle; the circulating pump is arranged on the circulating pipeline; the titration tank is communicated with the circulating pipeline through a communication pipeline; the bottom of the titration tank is connected with an optical detection device through a detection pipeline; a waste liquid outlet is formed in ...

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Номер записи: 5
27-03-2018 дата публикации

Film is crowded with polymer altogether to medical instrument shaping packing

Номер: CN0207140485U
Автор: YU XIAOKANG, ZHENG FEI
Принадлежит: HANGZHOU ZHONGCHENG PLASTIC PACKING CO LTD, HANGZHOU ZHONGCHENG PLASTIC PACKING CO., LTD.

The utility model discloses a film is crowded with polymer altogether to medical instrument shaping packing, including top layer, main layer, the heat -seal layer that sets gradually, the top layer ishigh temperature resistant polypropylene resin, main layer is random binary propylene copolymer modified resin layer, the heat -seal layer is polypropylene, polyethylene blend layer. The utility model has the advantages of simple structure and reasonable design, through the three -layer altogether an agent curtain coating production technology make, can be with medical ground paper or paster heat-seal behind plastics sucking moulding, its heat -seal temperature control is at specific scope and easily tear to can satisfy multiple aseptic condition, be used for multiple medical instrument's aseptic package, the film of this thickness setting can effectively improve its bulk strength and shaping effect, can not produce the fold.

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Номер записи: 6
05-08-2015 дата публикации

Dialkyl phosphinic acid compound or salt thereof and preparation method thereof

Номер: CN104817589A
Автор: YU XIAOKANG, ZHU ZHAOJIANG
Принадлежит:

The invention discloses a preparation method of a dialkyl phosphinic acid compound or salt thereof. The method includes the following steps that a compound in a formula A and a compound in a formula B are reacted for 10-30h under conditions of existing of catalyst PdLn, alkali and inert solvent, nitrogen protection and 80-180 DEG C heating temperature and then PNMR detecting reaction is performed; then an organic layer is obtained through filtering, adding of defined amount of water, acidification and organic solvent extraction; then the obtained organic layer is subjected to steps of drying, filtering and pressure reducing to remove the solvent. The preparation method is simple, convenient and novel, a halogenate material directly serves as a raw material, meanwhile, side reaction and by-product are reduced, the product purity is high, the operability is high, and the method is worth popularizing.

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Номер записи: 7