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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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Применить Всего найдено 4. Отображено 4.
22-08-2012 дата публикации

Wear-resistance layers on surfaces of inner ring and outer ring of bypass variable mechanism of gas turbine and preparation method thereof

Номер: CN0101705842B
Автор: MINGYI HE, DINGJUN LI, ZHENGCHAO LI, WEI WANG, XUDONG XIANG, DAOJUN ZHANG, WEIGANG ZHANG, HE MINGYI, LI DINGJUN, LI ZHENGCHAO, WANG WEI, XIANG XUDONG, ZHANG DAOJUN, ZHANG WEIGANG
Принадлежит:

The invention discloses wear-resistance layers on the surfaces of an inner ring and an outer ring of a bypass variable mechanism of a gas turbine and a preparation method thereof. The wear-resistance layers are positioned on the inner bottom surface of the outer ring and the outer top surface and the lateral surfaces of the inner ring; and the wear-resistance layers are molybdenum coatings and are made by an air plasma spraying method. The molybdenum coatings have high hardness, low friction coefficient and uniformly distributed ports and can store oil, improve the corrosion resistance and wear resistance of the inner ring and the outer ring of the bypass mechanism, prolong the service life of workpieces and reduce cost. The preparation method of the invention adopts the air plasma spraying process, solves the problems of difficult molybdenum melting, easy coating oxidization and low spraying efficiency and successfully applies aluminum densified coatings to the bypass mechanism of the ...

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Номер записи: 1
19-05-2010 дата публикации

Surface wear-resistant layer of high-pressure nozzle cascade of turbine and preparation method thereof

Номер: CN0101709657A
Автор: MINGYI HE, DINGJUN LI, ZHENGCHAO LI, WEI WANG, XUDONG XIANG, DAOJUN ZHANG, WEIGANG ZHANG, HE MINGYI, LI DINGJUN, LI ZHENGCHAO, WANG WEI, XIANG XUDONG, ZHANG DAOJUN, ZHANG WEIGANG
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The invention provides a surface wear-resistant layer of a high-pressure nozzle cascade of a turbine and a preparation method thereof. The surface wear-resistant layer is a Cr3C2-NiCr coating; and after the cascade is welded to form a nozzle chamber, the surface wear-resistant layer is prepared by adopting a hypersonic flame spraying method, wherein the thickness of the Cr3C2-NiCr coating is between 0.15 and 0.20 millimeter. The surface wear-resistant Cr3C2-NiCr coating enhances the performance of wear resistance and high-temperature resistance of workpieces, has small thermal stress, makes the workpieces insusceptible to cracking during use and effectively improves the service life of the workpieces. The preparation process of the Cr3C2-NiCr coating overcomes the drawback of easy cracking of the surface coating prepared by the conventional process that the cascade is formed by welding through carburization and chromizing, avoids tempering, has simple and easy-to-operate technical process ...

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Номер записи: 2
16-06-2010 дата публикации

Surface wear-resisting layer of gas turbine compressor blade and blade root and manufacturing method thereof

Номер: CN0101737352A
Автор: MINGYI HE, DINGJUN LI, ZHENGCHAO LI, WEI WANG, XUDONG XIANG, DAOJUN ZHANG, WEIGANG ZHANG, HE MINGYI, LI DINGJUN, LI ZHENGCHAO, WANG WEI, XIANG XUDONG, ZHANG DAOJUN, ZHANG WEIGANG
Принадлежит:

The invention provides a surface wear-resisting layer of gas turbine compressor blade and blade root and a manufacturing method thereof. The surface wear-resisting layer is positioned on the contact surface of blade bottom and an impeller, and is a coating which is made of copper-nickel indium alloy powder; the copper-nickel indium alloy powder comprises the following components: 50-60 wt% of copper powder, 30-40 wt% of nickel powder, 3-10 wt% of indium powder; and a supersonic speed flame spraying method is used to spray the copper-nickel indium alloy powder on the surface of the blade root. The thickness of the coating is 0.07-0.09 mm. The surface wear-resisting layer of the invention is a fretting wear-resisting layer, which enhances blade fretting fatigue resistance, and prolongs the service life of products. the supersonic speed flame spraying (AC-HVAF) process method is adopted to prepare the copper-nickel-indium coating with lower porosity and high bonding strength; the method simplifies ...

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Номер записи: 3
12-05-2010 дата публикации

Wear-resistance layers on surfaces of inner ring and outer ring of bypass variable mechanism of gas turbine and preparation method thereof

Номер: CN0101705842A
Автор: MINGYI HE, DINGJUN LI, ZHENGCHAO LI, WEI WANG, XUDONG XIANG, DAOJUN ZHANG, WEIGANG ZHANG, HE MINGYI, LI DINGJUN, LI ZHENGCHAO, WANG WEI, XIANG XUDONG, ZHANG DAOJUN, ZHANG WEIGANG
Принадлежит:

The invention discloses wear-resistance layers on the surfaces of an inner ring and an outer ring of a bypass variable mechanism of a gas turbine and a preparation method thereof. The wear-resistance layers are positioned on the inner bottom surface of the outer ring and the outer top surface and the lateral surfaces of the inner ring; and the wear-resistance layers are molybdenum coatings and are made by an air plasma spraying method. The molybdenum coatings have high hardness, low friction coefficient and uniformly distributed ports and can store oil, improve the corrosion resistance and wear resistance of the inner ring and the outer ring of the bypass mechanism, prolong the service life of workpieces and reduce cost. The preparation method of the invention adopts the air plasma spraying process, solves the problems of difficult molybdenum melting, easy coating oxidization and low spraying efficiency and successfully applies aluminum densified coatings to the bypass mechanism of the ...

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Номер записи: 4