| 原子氧对O型圈泄漏率的影响 |
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| 引用本文： | 邵新杰,张建斌,张瑗. 原子氧对O型圈泄漏率的影响[J]. 北京航空航天大学学报, 2003, 29(3): 225-228 |
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| 作者姓名： | 邵新杰 张建斌 张瑗 |
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| 作者单位： | 北京航空航天大学 机械工程及自动化学院 |
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| 基金项目： | 国家高技术研究发展计划(863计划);863-2-4-4-7; |
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| 摘 要： | 使用原子氧效应地面模拟设备对硅橡胶材料O型圈进行了原子氧暴露实验;用测压法进行了O型圈在原子氧暴露前后的泄漏率比对实验,并对实验前后O型圈表面形貌特征作了扫描电镜分析.实验表明:原子氧对O型圈表面有很大的剥蚀效应;O型圈经过原子氧暴露后,质量减少、泄漏率明显增大;暴露时间越长,表面形貌受到的损坏越严重、质量减少量越多,泄漏率也就越大.
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| 关 键 词： | 硅橡胶 氧原子 泄漏 O型圈 |
| 文章编号： | 1001-5965(2003)03-0225-04 |
| 收稿时间： | 2001-09-28 |
| 修稿时间： | 2001-09-28 |
Effect of Atomic Oxygen on Leakage Rate of O-Ring |
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| Shao Xinjie,Zhang Jianbin,Zhang Yuan. Effect of Atomic Oxygen on Leakage Rate of O-Ring[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(3): 225-228 |
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| Authors: | Shao Xinjie Zhang Jianbin Zhang Yuan |
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| Affiliation: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics |
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| Abstract: | Experiments were conducted with an IFM ground equipment to investigate the effect of atomic oxygen on silicone rubber O rings. By measuring the pressure between two O rings, leakage rates between the two O rings before and after exposure to atomic oxygen were compared. In addition, the surface characteristics of O ring were analyzed by scanning electron microscope. All experiments prove that atomic oxygen erodes the surface of O ring seriously, resulting in a weight loss and a weakened sealing capacity of the O ring. The results show that the surface damage, the weight loss and the leakage rate of an O ring all increase in proportion to its of the time exposed to atomic oxygen. |
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| Keywords: | silicone rubber oxygen atoms leakage O ring |
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