航天器环境工程2018，Vol.35Issue(1)：76-81,6.DOI:10.3969/j.issn.1673-1379.2018.01.014
卫星真空烘烤试验方案及验证
The satellite vacuum bakeout test scheme with validation
朱剑涛 1刘晨 1刘天雄1
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 折叠
摘要
Abstract
For avoiding failure, some methods should be adopted before the thermal vacuum test to reduce the outgassing of nonmetallic materials and the related molecular contaminations. This paper analyses the volatilization and condensation characteristics of nonmetallic materials, and the engineering practice of vacuum backout for satellite, then proposes a vacuum bakeout scheme for the satellite, including the profile, the temperature, the time and the pressure of the test. The testing result of a satellite indicates that the scheme is feasible in that it can improve the pressure within the satellite and reduce the possible molecular contamination. After the vacuum bakeout, the failure of the equipment due to low-pressure discharging or molecular contamination can be basically avoided.关键词
放气/分子污染/低气压放电/真空烘烤/热真空试验Key words
out-gassing/molecular contamination/low-pressure discharging/vacuum bakeout/thermal vacuum test分类
军事科技引用本文复制引用
朱剑涛,刘晨,刘天雄..卫星真空烘烤试验方案及验证[J].航天器环境工程,2018,35(1):76-81,6.
