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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 4. Отображено 4.
20-08-2008 дата публикации

Aluminum alloy leadless welding wire containing soldering fluid and method for manufacturing soldering fluid

Номер: CN0101244493A
Автор: YU YAOQIANG, ZHANG JIANHUI, WEI TIELIANG, YAOQIANG YU, JIANHUI ZHANG, TIELIANG WEI
Принадлежит:

The invention relates to a preparation method of an aluminum alloy lead-free soldering wire with a flux and the flux, which is characterized in that the lead-free solders comprise tin, silver, copper, aluminum and zinc alloy; the lead-free flux comprises the following substances according to the weight proportion: 10 to 20% organic carboxylic acid and derivative active agent, 10 to 15% high boiling point solvent, 0.1 to 2% fluorocarbon surface-active material, 0.1 to 0.4% corrosion inhibitor, 40 to 50 % water soluble resin, and the remaining amount of solvent isopropanol, ethanol and deionized water. The invention is applicable to the lead-free aluminum alloy soldering, which is prepared according to the properties of lead-free solders and the soldering process. The preparation method has the advantages of scientific design, reasonable formula, strong technologic properties, low welding residue, clean plated surface, no rosin-based resin, good tin permeability, good wettability, avoidance ...

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Номер записи: 1
11-08-2010 дата публикации

Aluminum alloy leadless welding wire containing soldering fluid and method for manufacturing soldering fluid

Номер: CN0101244493B
Автор: YU YAOQIANG, ZHANG JIANHUI, WEI TIELIANG, YAOQIANG YU, JIANHUI ZHANG, TIELIANG WEI
Принадлежит:

The invention relates to a preparation method of an aluminum alloy lead-free soldering wire with a flux and the flux, which is characterized in that the lead-free solders comprise tin, silver, copper, aluminum and zinc alloy; the lead-free flux comprises the following substances according to the weight proportion: 10 to 20% organic carboxylic acid and derivative active agent, 10 to 15% high boiling point solvent, 0.1 to 2% fluorocarbon surface-active material, 0.1 to 0.4% corrosion inhibitor, 40 to 50 % water soluble resin, and the remaining amount of solvent isopropanol, ethanol and deionized water. The invention is applicable to the lead-free aluminum alloy soldering, which is prepared according to the properties of lead-free solders and the soldering process. The preparation method hasthe advantages of scientific design, reasonable formula, strong technologic properties, low welding residue, clean plated surface, no rosin-based resin, good tin permeability, good wettability, avoidance ...

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Номер записи: 2
23-07-2014 дата публикации

Multilayer composite insulation carpet for hot-line work and preparation method for multilayer composite insulation carpet

Номер: CN103935087A
Автор: CHEN TIE, ZHANG ZIHONG, ZHOU ZICHAO, WEI TIELIANG
Принадлежит:

The invention relates to a multilayer composite insulation carpet for hot-line work and a preparation method for the multilayer composite insulation carpet. The preparation method comprises the following steps: adding preparations, such as an aging agent and a fire retardant, are added into natural rubber or ethylene-propylene-diene terpolymer to obtain a mixture according to requirements of operation fields with different voltage levels; carrying out banburying, rubber filtering and mixing on the mixture to prepare rubber sheets which are 0.3-1.5mm thick; stacking 3-8 rubber sheets and putting into a mold; and vulcanizing the rubber sheets through a flat plate vulcanization machine, and laminating the peripheries of the rubber sheets to form an integrated reinforcement edge, wherein the composite thickness of the insulation carpet is 2.0-4.5mm; the reinforcement edge is 6mm wide; the reinforcement edge and the integrated insulation carpet are planes. Compared with the prior art, the multilayer ...

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Номер записи: 3
30-05-2023 дата публикации

Preparation method of chlorine-free bromine-free lead-free tin wire with anti-oxidation coating for automatic welding

Номер: CN116174998A
Автор: ZHANG JIANHUI, WEI TIELIANG, YU YAOQIANG, ZHOU YIPING, QU DONGMEI, YU XINMING, ZHANG YADI
Принадлежит:

The invention provides a preparation method of a chlorine-free bromine-free lead-free tin wire with an anti-oxidation coating for automatic welding. The preparation method is characterized in that an inner core soldering flux of the tin wire comprises hyper-abietic acid hydrogenated rosin, synthetic resin, a fluorocarbon surfactant, long-chain organic acid and a long-chain organic acid metal salt activating agent; the complex anti-oxidation coating is added outside the tin wire, the wetting speed of the complex anti-oxidation coating on the surface of a welded object is equivalent to that of a commercially available RMA type chlorine-containing bromine-containing tin wire, but because the tin wire does not contain chlorine and bromine, the tin wire is particularly suitable for automatic welding of electronic products with higher requirements in military industry, medicine and the like, does not need to be cleaned, saves the production cost and improves the production efficiency. The environmental ...

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Номер записи: 4