中国空间科学技术

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原子氧及紫外线对O形圈泄漏率影响的研究

邵新杰,张建斌,王广振   

  1. 军械工程学院,北京航空航天大学,清华大学 石家庄050003 ,北京100083 ,北京100084
  • 发布日期:2003-04-25

The Study of the Effect of O-Ring Exposure to Atomic Oxygen and Ultraviolet

Shao Xinjie (Ordnance Engineering College, Shi Jiazhuang 050003) Zhang Jianbin (Beijing University of Aeronautics & Astronautics, Beijing 100083) Wang Guangzhen (Tsinghua University, Beijing 100084)$$$$   

  • Published:2003-04-25
  • Supported by:
    国家“八六三”高技术计划资助项目 ( 863 2 4 4 7)

摘要： 运用地面模拟设备对硅橡胶材料O形圈进行了原子氧暴露、紫外线辐射实验研究 ;利用测压法进行了O形圈在原子氧暴露及紫外线辐射前后的泄漏率比对实验 ,并对实验前后O形圈进行了扫描电镜分析。实验表明 :原子氧和紫外线辐射对O形圈的表面状况及泄漏率均有明显影响

关键词: 紫外线, 原子氧, 硅橡胶, 密封试验

Abstract: Experiments are conducted with the ground analog equipments to investigate the effect of atomic oxygen and ultraviolet on silicone rubber O rings. By measuring the pressure between two O rings, leakage rates before and after exposure to atomic oxygen or ultraviolet are compared . In addition,the surface characteristics of O ring are analyzed by scanning electron microscope . All experiments prove that the surface characteristics and leakage rate of an O ring are affected seriously when it is exposed to atomic oxygen and ultraviolet.