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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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Применить Всего найдено 3. Отображено 3.
13-04-2021 дата публикации

Mask with three-layer anisotropic structure

Номер: CN212949587U
Автор: FANG KUANJUN, LIU YUJIE, WU LILI, SHEN CHUNMIAO, LIN KAI, NIU HAITAO, ZHANG LEIJIAN, HE PEIZHI, LIU YUEXING, WANG YUPING, 房宽峻, 刘玉洁, 伍丽丽, 申春苗, 林凯, 牛海涛, 张雷健, 贺佩芝, 刘曰兴, 王玉平
Принадлежит: SHANDONG HUANGHE DELTA INST OF TEXTILE SCIENCE & TECH CO LTD, SHANDONG HUANGHE DELTA INSTITUTE OF TEXTILE SICNECE AND TECHNOLOGY CO., LTD., 山东黄河三角洲纺织科技研究院有限公司

The invention provides a mask with a three-layer anisotropic structure, the mask comprises a mask main body and ear hanging parts connected with the mask main body, and the mask main body sequentially comprises a hydrophobic inner layer, a nanofiber membrane filtering layer and a hydrophilic outer layer which are compounded; and the diameter of the nanofiber in the nanofiber membrane filtering layer is less than 200nm. Due to the fact that the hydrophilicity and hydrophobicity of the inner layer and the outer layer of the mask are different, moisture generated when people wear the mask can be guided into the outer layer from the inner layer, the comfort of the mask is improved, and no stuffiness feeling exists; moreover, the protective filtering layer of the mask is a nano-film made of nano-fibers, the diameter of the nano-fibers is smaller than 200 nm, the porosity is high, the protective property can be improved, and the comfort is not affected. The mask has a certain protective property ...

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Номер записи: 1
29-08-2023 дата публикации

Ultrahigh-pressure sealing valve

Номер: CN116658629A
Автор: ZHANG LEIJIAN, HUANG HAI, LIU ZHAOPING, XU RONGFENG
Принадлежит:

The invention discloses an ultrahigh-pressure sealing valve. The ultrahigh-pressure sealing valve comprises a valve body, a first adapter, a second adapter and a plunger, a first cavity capable of being closed is formed in the valve body, the plunger is arranged in the first cavity and can move under driving of external force, and the first adapter and the second adapter are fixedly arranged on the valve body. The first adapter and the second adapter are respectively communicated with the first cavity, and a channel between the first adapter and the second adapter can be connected and communicated through the plunger or closed by being cut off by the plunger. The two hollow adapters are adopted, when the plunger is in a designated state, the first adapter and the second adapter are communicated through the gap between the plunger and the first cavity to form the flow guide channel, the sealing performance of the flow guide channel is better, and the problem that the flow guide channel is ...

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Номер записи: 2
04-04-2023 дата публикации

Device and method for testing bending-resistant fastness of nano carbon heating sheet

Номер: CN115901503A
Автор: LIU CHENGLU, FANG KUANJUN, REN XIANGTAO, YAO XINHE, LI TAO, YANG YI, ZHANG LEIJIAN, RUAN XINLE, ZHANG SHASHA
Принадлежит:

The invention belongs to a testing device, and particularly relates to a device and a method for testing the bending fastness of a nano carbon heating sheet. The testing device comprises a vertical operation device, a horizontal operation device and a mounting seat. The horizontal operation device and the vertical operation device are mounted on the mounting seat and are arranged at an angle of 90 degrees; the horizontal operation device comprises a horizontal operation driving device, a horizontal mounting bottom plate, a horizontal clamping plate, a horizontal operation guide rail and a horizontal clamping bolt; the vertical operation device comprises a vertical operation driving device, a vertical mounting bottom plate, a vertical clamping plate, a vertical operation guide rail and a vertical clamping bolt; the device is used for testing the bending-resistant fastness of the nano carbon heating sheet, characterizes the bending-resistant fastness according to the change of front and back ...

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Номер записи: 3