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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.
10-12-2014 дата публикации

Surface recombination processing method for magnesium alloy microwave assembly cover plate

Номер: CN104195569A
Автор: LIU DONGGUANG, CHEN QIHAI, HU JIANGHUA, ZHANG YE, ZHOU MINGZHI
Принадлежит:

The invention relates to a surface recombination processing method for a magnesium alloy microwave assembly cover plate. The method comprises the following specific operation steps: sequentially carrying out stain and oil removal, alkaline oil removal, acid pickling and etching, activation treatment, micro-arc oxidation treatment, filling for hole sealing, and magnetron-sputtering vacuum plating on the magnesium alloy cover plate. The method has the characteristics that 8-15 layers of chromium-titanium membrane layers are prepared by magnetron reactive sputtering firstly, and then a conductive silver membrane layer is prepared by magnetron reactive sputtering; the chromium-titanium membrane layers and the conductive silver membrane layer form a composite metal membrane layer, and the thickness of the composite metal membrane layer is 3-5 mu m; and after the micro-arc oxidation treatment is performed, a micro-arc oxidation ceramic membrane layer generated on the surface has the characteristics ...

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Номер записи: 1
27-03-2018 дата публикации

Steam injection boiler warning diagnostic equipment

Номер: CN0207148623U
Автор: JIA BO, GUO JINGHUA, WANG JINLIANG, LI GUANGCHUN, LIU QING, SONG JINGYOU, CHEN QIHAI, MA QUNQUN
Принадлежит: CHINA PETROLEUM & CHEM CORP, SINOPEC CO LTD SHENGLI OILFIELD BRANCH HEKOU OIL PROD PLANT, CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC CO., LTD., SHENGLI OILFIELD BRANCH, HEKOU OIL PRODUCTION PLANT

The utility model provides a steam injection boiler warning diagnostic equipment, including the PLC module, signal processing module, metal film resistor and aviation socket, this PLC module output boiler operation's various states, and the pressure during boiler operation, these continuous variablees of differential pressure and temperature, the pressure of this signal processing module during with the boiler operation of this PLC module output, are are these continuous variablees of differential pressure and temperature kept apart and converted 4 into 20MA electric current signal output, the current signal of the simulation temperature after this metal film resistor handles according to this signal processing module, produce the analog signal of corresponding temperature value, this PLCmodule, this signal processing module and this metal film resistor pass through the various states of this aviation socket with the boiler operation of simulation, and the pressure during boiler operation ...

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Номер записи: 2
25-07-2023 дата публикации

Feature mapping-based process model reverse generation method and system

Номер: CN116484525A
Автор: ZHOU HONGQIAO, WANG MEI, ZHANG XIANGXIANG, XU CHEN, HU ZIXIANG, CHEN QIHAI, YANG YI
Принадлежит:

The invention discloses a process model reverse generation method and system based on feature mapping. The method comprises the following steps: S1, constructing a feature mapping library; s2, extracting topological features of the surface of the part; s3, converting the design features into processing features based on the feature mapping library; s4, a three-dimensional process model is generated, the method based on the geometric features can be applied to various types of parts, and more types of geometric features can be recognized; geometric features of the part can be calculated more accurately, and the problem of error accumulation possibly occurring in a rule-based method is avoided; the geometrical characteristics of the part can be automatically identified, and manual rule setting is not needed, so that the identification efficiency is improved; and a new geometric feature recognition method can be easily added, so that the function and the application range of the algorithm ...

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Номер записи: 3
25-07-2023 дата публикации

Welding method for high-dispersion and high-precision soldering lug

Номер: CN116475609A
Автор: HOU JIANGTAO, WANG GUOCHAO, ZHAO PEITANG, ZUO FANGZHEN, LIU YONGTAO, ZHANG CHAO, CHEN QIHAI, ZHU LINA, ZHOU JI
Принадлежит:

The invention provides a welding method for a high-dispersion and high-precision soldering lug, and relates to the field of vacuum brazing. Comprising the following steps that (1) a to-be-welded part is pretreated; (2) solder is deposited on the surface of the pretreated part to be welded, and a soldering lug is formed; (3) assembling the to-be-welded part after deposition of the soldering lug; and (4) the assembled part to be welded is welded. The method is high in welding efficiency, and welded products are good in quality consistency and stability.

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Номер записи: 4