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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 5. Отображено 5.
04-04-2023 дата публикации

Method for evaluating wet adhesive force of metal organic coating

Номер: CN115901615A
Автор: YANG ZHIPING, WEI DALI, CHEN GUANG, ZHANG RONGJIN, ZHANG YUHAO, ZHAO KAILI, NIE XIAOLIN
Принадлежит:

The invention discloses a method for evaluating the wet adhesive force of a metal organic coating, which comprises the following steps: coating an organic coating on a metal substrate, scribing 3 * 3 square grids with the side length of a on a sample to be tested by using a cutter, and enabling the scribing depth to penetrate through a paint film to reach the surface of the metal substrate; completely immersing the sample into the NaCl aqueous solution; adhering a transparent pressure-sensitive adhesive tape to the gridding position of the sample, enabling the adhesive tape to be tightly adhered to the coating, then stably tearing the adhesive tape away from the coating within 0.5-1s, and sequentially repeating the operation along the four-side direction of the square gridding; carrying out microscopic shooting on the square grid in the dead center of the square grid by using camera shooting equipment with an amplification function; the method comprises the following steps: firstly, carrying ...

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Номер записи: 1
28-04-2023 дата публикации

Anti-corrosion and anti-rust agent for neutral emulsified cutting fluid

Номер: CN116024024A
Автор: LIAO YUNHUA, HUANG GUODU, ZHAO KAILI, NIE XIAOLIN
Принадлежит:

The invention discloses an anti-corrosion and anti-rust agent for neutral emulsified cutting fluid, which is obtained by mixing Guerbet acid and dicyclohexylamine according to the mass ratio of (1-1.5): 1 and reacting at high temperature, wherein the reaction temperature ranges from 60 DEG C to 80 DEG C, and the reaction time ranges from 30 min to 40 min. The anti-corrosion and anti-rust agent disclosed by the invention is added into the neutral emulsified cutting fluid, so that the anti-rust and anti-corrosion performance of the emulsified cutting fluid under the condition that the pH value is neutral is effectively realized, and the industrial application of the neutral emulsified cutting fluid is ensured.

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Номер записи: 2
07-04-2023 дата публикации

Cleaning antirust agent suitable for multi-material automobile parts and preparation method of cleaning antirust agent

Номер: CN115928084A
Автор: HUANG GUODU, ZHANG JINYU, ZHAO KAILI, NIE XIAOLIN, LI XIUYUN
Принадлежит:

The invention discloses a cleaning antirust agent suitable for multi-material automobile parts. The cleaning antirust agent comprises the following components in percentage by weight: 7%-8.5% of alkali salt, 2.5%-3% of a chelating agent, 8%-12% of a nonionic surfactant, 0.2%-0.5% of a cationic surfactant, 2%-2.5% of an antirust agent, 0.5%-1% of a corrosion inhibitor and the balance of water. The cleaning antirust agent effectively solves the problem that collinear cleaning of ferrous metal, die-casting aluminum alloy and magnesium alloy cannot give consideration to cleaning, rust prevention and nonferrous metal corrosion inhibition at the same time. The cleaning antirust agent can guarantee the cleanliness and corrosion inhibition effect when multiple materials are cleaned on the basis of stable stock solution.

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Номер записи: 3
14-04-2023 дата публикации

Preparation method of modified nano zirconium sol

Номер: CN115961276A
Автор: ZHANG RONGJIN, WEI DALI, CHEN GUANG, YANG ZHIPING, ZHANG YUHAO, ZHAO KAILI, NIE XIAOLIN
Принадлежит:

The invention discloses a preparation method of modified nano zirconium sol, which specifically comprises the following steps: adding 4-8g of concentrated nitric acid and 0.3-0.6 g of zirconium nitrate pentahydrate solid into 100mL of deionized water, stirring and dissolving, then adding 0.1-0.2 g of amino silane and 0.05-0.1 g of epoxy silane at normal temperature, fully stirring, and fully coordinating silicon hydroxyl with zirconium ions; and finally, slowly dropwise adding a pH regulator into the reaction solution, regulating the pH of the reaction system to 5-6, and reacting to obtain the modified nano zirconium sol. Zirconium sol without heavy metal ions is used as a metal reaction activity regulator, so that the environmental protection pressure is reduced, the drawing binding force of a coating paint film and a metal base material is improved, and the salt mist corrosion resistance of a subsequent coating paint film is improved.

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Номер записи: 4
30-06-2023 дата публикации

Preparation method of dialkyl polysulfide

Номер: CN116354858A
Автор: LI XIAOSHUAN, ZHAO KAILI, ZUO YONGPING, ZHENG WEI, ZHU ZHENZHEN, WANG GANG, KUAI WENLONG, NIE XIAOLIN
Принадлежит:

The invention discloses a preparation method of dialkyl polysulfide, which specifically comprises the following steps: adding an alpha-olefin compound, elemental sulfur and a solid catalyst into a No.1 reaction kettle, raising the temperature to 110-130 DEG C in an inert gas atmosphere, and reacting for 8-12 hours; adding an alpha-olefin compound, elemental sulfur and a solid catalyst into the second reaction kettle, transferring the mixed material in the first reaction kettle into the second reaction kettle in an inert gas atmosphere and under a closed condition, raising the temperature to 110-130 DEG C, and reacting for 6-10 hours to obtain the dialkyl polysulfide. According to the method, only olefin and elemental sulfur are used as raw materials, a light-color product can be obtained on the premise that hydrogen sulfide, mercaptan and halogen-containing substances are not used, and the color of the prepared dialkyl polysulfide is basically consistent with that of a product prepared ...

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Номер записи: 5