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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 4. Отображено 4.
28-07-2010 дата публикации

Method for preparing proton exchange membrane with polyvinylidene fluoride grafted and grafting copolymerized with 2-acrylamido-2-methylpropanesulfonic acid

Номер: CN0101787141A
Автор: SHENGLI AN, GUIBAO GUO, ERDING HAN, SHASHA KOU, JUNBIN WANG, AN SHENGLI, GUO GUIBAO, HAN ERDING, KOU SHASHA, WANG JUNBIN
Принадлежит:

The invention relates to a method for preparing proton exchange membrane with polyvinylidene fluoride grafted and grafting copolymerized with 2-acrylamido-2-methylpropanesulfonic acid, which belongs to the field of battery electrolyte material. The method comprises: dissolving a silicon compound in water-containing N-methyl pyrrolidone solution; adding polyvinylidene fluoride PVDF and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) to the solution; adding initiator; heating and stirring; casting the solution onto a clean glass plate; drying the obtained product; and removing membrane to obtain graft copolymer membrane with modified PVDF and 2-acrylamido-2-methylpropanesulfonic acid. The proton exchange membrane prepared by the method not only has good proton-conducting pieces, but also is convenient for mass production.

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Номер записи: 1
19-02-2014 дата публикации

Method for preparing transmission electron microscope sample

Номер: CN103592171A
Автор: GAO ZHIGUO, GAO FENG, SONG RANCHEN, LIU LI, SHI WENYI, KOU SHASHA, BAI YAQIONG
Принадлежит:

The invention relates to a method for preparing a transmission electron microscope sample, which comprises the following steps: pasting a slice sample through linear cutting or machinery sawing on a sample bench, grinding the sample after glue is solidified, polishing the sample surface of the pasted sample bench in hand by sand paper with 200 meshes, successively replacing the sand paper with finer particle size, slightly polishing the sample surface by the sand paper with 800 meshes or finer mesh after the edge part of the sample surface wrinkles until the sample surface is bright, and splitting the sample along the direction of the sample surface by a blade until the sample falls from the sample bench. The sample thickness can be carefully measured by a spiral micrometer, if the sample thickness is in a range of 40-60 mum, electrolytic double spray or ion thinning can be carried out. The transmission electron microscope sample treated by the method has the advantages that the number ...

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Номер записи: 2
28-05-2014 дата публикации

High-strength and high-toughness CO2 corrosion resistant bushing and making method thereof

Номер: CN103820714A
Автор: LIU JIN, SHI XIAOXIA, MA AIQING, WANG JINLONG, ZHANG XINGGANG, KOU SHASHA
Принадлежит:

The invention discloses a high-strength and high-toughness CO2 corrosion resistant bushing. The bushing comprises, by mass, 0.159-0.166% of C, 0.241-0.248% of Si, 0.427-0.574% of Mn, 2.92-3.1% of Cr, 0.373-0.417% of Mo, 0.015% or less of P, 0.011% or less of S, 0.05-0.052% of V, 0.013-0.18% of Ti, 0.018-0.022% of Al, and the balance Fe, and the sum of the mass fractions of the above components is 100%. The invention also discloses a making method of the high-strength and high-toughness CO2 corrosion resistant bushing. The method comprises the steps of steelmaking production, steel rolling and rolled steel heat treatment. The reasonability of the chemical components of the material of the bushing and the adoption of a crystal grain refinement and fine grain strengthening technology make the high-strength and high-toughness CO2 corrosion resistant bushing have a high CO2 corrosion resistance.

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Номер записи: 3
26-02-2014 дата публикации

High-toughness high-strength steel plate and manufacturing method thereof

Номер: CN103602894A
Автор: REN LIFANG, YUAN XIAOMING, JIANG BINGKUN, ZHENG YONGCHUN, KOU SHASHA, WANG JUNGANG, LU XIAOYU
Принадлежит:

The invention discloses a high-toughness high-strength steel plate and a manufacturing method thereof. The high-toughness high-strength steel plate comprises the following chemical components in percentage by mass: 0.05-0.09% of C, 0.10-0.30% of Si, 1.70-2.00% of Mn, 0.04-0.07% of Nb, 0.06-0.12% of Ti, 0.001-0.003% of rare earth RE, 0.030-0.040% of acid-soluble aluminum sol, less than or equal to 0.015% of P, less than or equal to 0.005% of S and the balance of Fe. The invention also discloses a manufacturing method of the high-toughness high-strength steel plate. The manufacturing method comprises the steps: heating a continuous-casting billet, rolling, cooling and reeling. The high-toughness high-strength steel plate disclosed by the invention has good hot cutting property, cold bending property and weldability and is suitable for load-bearing structural beam parts of large-sized engineering machinery such as containers, cranes, excavators and dumpers.

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Номер записи: 4