摘要
动密封是机器(设备)中相对运动件之间的密封。目前,动密封结构的密封方式主要有金属密封和非金属密封两种。而在非金属密封中,则多以橡胶密封圈密封方式为主。介绍了一种航天用高真空动密封结构,以矩形橡胶密封圈为主要密封材料的结构及其密封性能测试装置,对老化前、后,不同状态下的密封性能进行测试,对测试数据进行比较、分析,得出密封性能的变化情况及结论。
The dynamic seal is the seal between the relative moving parts in the machine(equipment ). At present, the sealing methods of the dynamic seal structure are mainly metal seal and non-matallic seal. In non-matallic seals, rubber seals are mostly used. In this article, a high vacuum dynamic seal structure for aerospace is introduced. The structure of rubber as the main sealing material and its sealing performance testing device are used to test the sealing performance under different conditions before and after aging. The test data are compared and analyzed, and the changes and conclusions of sealing performance are obtained.
作者
孙冬花
孙雯君
丁栋
汪宁
张瑞年
赵澜
SUN Donghua;SUNWenjun;Ding Dong;WANG Ning;ZHANG Ruinian;ZHAO Lan(Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics,Lanzhou 730000,China)
出处
《真空与低温》
2019年第2期111-115,共5页
Vacuum and Cryogenics
关键词
动密封
矩形橡胶圈
老化
密封性能
dynamic seal
rubber ring
aging
sealing performance