摘要
密封性是检漏收集室的核心技术指标,其密封性设计的难点在于大门的密封性设计。介绍一种新型的收集室大门密封型式,该密封型式具有实现简单、可靠性高等优点;通过对氦质谱非真空累积检漏法测试结果的误差分析,确定收集室的密封性指标;通过现场的实验测试,验证新研制收集室的密封性指标满足设计要求;通过设计长时间的可靠性试验验证充气密封圈达到设计的使用寿命。
Sealing performance is the core demand of the leak detection accumulation chamber for spacecr＇afts.Ils design difficuhy lies in the sealing design of the big door.A new type door sealing design of the accumulation chamber which owns simple manufacture and high reliability was introduced.The leakage rate of the accumulation chamber was determined by the error analysis about the testing result of nou-vacuum accumulation leak detection method.According to a series of tes- ting,the leakage rate of a built accumulation chamber met the demand.The inflatable seal was proved to have the designed use life through a long time reliability test.
出处
《润滑与密封》
CAS
CSCD
北大核心
2018年第1期125-129,共5页
Lubrication Engineering
基金
国家重大专项工程
国防科工局技术基础(JSJC2015203B019)
关键词
检漏
收集室
密封性
充气密封
leak detection
accumulation chamber
sealing performance
inilatable seal
