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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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Форма поиска

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 3. Отображено 3.
27-07-2011 дата публикации

Aqueous magnetic slurry and preparation method thereof

Номер: CN0102134440A
Автор: YAJUN LIU, YANFENG LIU, JIAQIU LIU, LIU YAJUN, LIU YANFENG, LIU JIAQIU
Принадлежит:

The invention discloses aqueous magnetic slurry and a preparation method thereof. The magnetic slurry comprises the following component in part by weight: 50 to 80 parts of magnetic powder, 1 to 10 parts of carbon black, 1 to 10 parts of wetting and dispersing agent, 10 to 60 parts of binder, 0 to 10 parts of curing agent and 50 to 200 parts of water. The binder is a mixture of a water soluble binder and an emulsion binder, wherein the weight ratio of the water soluble binder to the emulsion binder is 1:5.5 to 1:20. The slurry has high flowability, improves the water resistance of the coating, reduces air bubbles and improves the spreading appearance of the coating. In the invention, due to the adoption of the two-step preparation method, the requirement of a formula system on the mechanical stability of the emulsion binder is lowered, the selection range of the binder is enlarged, the sanding amount of the slurry is reduced, the production efficiency of the slurry is improved, the air ...

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Номер записи: 1
03-08-2005 дата публикации

Adhesive type magnetic strip

Номер: CN0001648943A
Автор: LIU JIAQIU, LI XIGANG, JIAQIU LIU, XIGANG LI
Принадлежит:

The present invention relates to magnetic strip and especially a kind of adhesive magnetic strip. The adhesive magnetic strip consists of protecting layer, magnetic layer, base belt and adhering layer. The adhering layer has the composition of polyurethane 5-15 wt%, polyethylene 10-50 wt%, stuffing 5-20 wt%, assistant 0.3-1.0 wt%, coupling agent 4-8 wt% and solvent 40-90 wt%, and the addition of the coupling agent raises the sticking strength of the magnetic strip effectively and improves the machining performance.

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Номер записи: 2
07-10-1998 дата публикации

Three times stroke rod oil-well pump

Номер: CN0002293661Y
Автор: LIU JIAQIU, JIAQIU LIU
Принадлежит: LIU JIAQIU

The utility model relates to an underground rod tubing oil well pump with three-time stroke for oil production. The utility model is characterized in that on the basis of an existing rod oil well pump, a pump barrel is lengthened, and three plunger draw rods are additionally arranged in an original hydraulic cylinder. When the utility model works, each plunger in the oil well pump can be contracted in the hydraulic cylinder simultaneously; when a pumping rod of a pumping unit on the ground is operated, the pumping rod can drive the plungers to move vertically, so that a piston can be extended out of or retracted into a stroke increasing liquid lever step by step, and the piston can play a role in increasing the stroke of a pump body; accordingly, the purpose of oil pumping with long stroke and large displacement under the condition of unchanging the stroke frequency of the pumping unit on the ground can be realized. The pump has the advantages of simple structure and low cost, so that the ...

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Номер записи: 3