印度运载火箭及其氢氧发动机发展现状

Development Status of Indian Launch Vehicles and Cryogenic Engines

简要介绍了印度运载火箭以及低温氢氧发动机的发展历程,分析了印度研制的两款低温氢氧发动机CE-7.5和CE-20的性能、结构及制造特点,重点介绍了印度氢氧发动机国产化历程中几项制造技术,包括推力室电铸镍技术、燃烧室内衬铜合金材料的国产化以及对推力室内外壳连接技术真空钎焊的改进。

The development process of launch vehicle and cryogenic engine in India are briefly introduced in this paper.The performance,structure and manufacturing characteristics of two cryogenic engines which developed in India:CE-7.5 and CE-20,are analyzed.Some manufacturing technology during the localization process of cryogenic engine in Indian are focused on,including electroforming nickel technology,the localization of copper alloy material using in combustion chamber liner and the improvement of vacuum brazing technology in the thrust chamber.