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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 2. Отображено 2.
25-07-2023 дата публикации

Low-concentration CO sleeve type reactor

Номер: CN116474548A
Автор: LIU YUYING, SHEN PENGYU, MENG LINGKAI, ZHAO LEIJIANG, YAN ZHIDONG, ZHOU XING
Принадлежит:

The invention relates to a low-concentration CO sleeve type reactor which comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, a gas inlet is formed in the top of the outer cylinder, a gas outlet is formed in the bottom of the outer cylinder, the inner cylinder is used for filling a catalyst and carrying out reaction, the upper end of the inner cylinder is connected with the gas inlet, and the lower end of the inner cylinder is connected with the gas outlet. A supporting plate for supporting the inner cylinder in the outer cylinder is arranged on the periphery of the middle upper part of the inner cylinder, a plurality of catalyst filling layers which are arranged at intervals from top to bottom are arranged in the inner cylinder, and a gas distributor which is connected with the gas inlet and covers the upper end of the inner cylinder from top to bottom is arranged at the top in the outer cylinder; a gas collector which is connected with the gas outlet and ...

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Номер записи: 1
17-08-2011 дата публикации

Intermediate-temperate rapidly-cured surface mount adhesive for lead-free welding

Номер: CN0102153979A
Автор: YONGPING LEI, HAITING LAN, ZHIDONG YAN, XIAOJUN YANG, LANLI YI, YAOWU SHI, FU GUO, LEI YONGPING, LAN HAITING, YAN ZHIDONG, YANG XIAOJUN, YI LANLI, SHI YAOWU, GUO FU
Принадлежит:

The invention discloses an intermediate-temperate rapidly-cured surface mount adhesive for lead-free welding, belonging to the field of electronic industry. The adhesive comprises the following components in percentage by mass: 50.0-60.0% of low-viscosity epoxy resin, 14.0-22.0% of complex latent curing agent, 6.0-15.0% of active diluent, 0.0-6.0% of plasticizer, 5.0-10.5% of thixotropic agent, 7.5-13.5% of inorganic filling material and 0.5-1.0% of pigment. The adhesive can be used for the lead-free welding and can be rapidly cured at the intermediate temperate of 110 DEG C within 140-155 seconds; and after being cured, the adhesive has high stretching and shearing strength, is repairable, has favorable forming property, is less possible to spread and cave in, and can be applied to the technical field of lead-free electronic packaging.

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Номер записи: 2