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Leak rate testing of the international space station hatch in a thermal vacuum environment

机译:热真空环境下国际空间站舱口的泄漏率测试

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The International Space Station (ISS) Hatch successfully passed extensive leak rate qualification testing in a thermal vacuum environment. Testing was performed at Marshall Space Flight Center in the 10 foot diameter by 12 foot tall "Sunspot" vacuum chamber. As the Hatch was thermally cycled through its analytically predicted temperature extremes, leak rate tests were performed on all of the Hatch seals using helium mass spectrometer leak detectors. The test setup was designed to provide for maximum test sensitivity and simultaneous leak testing of multiple seals in order to reduce test flow times. The test was part of the Qualification program for the Hatch used on the ISS Nodes, Laboratory, Habitation, and International flight elements.
机译:国际空间站(ISS)舱口在热真空环境中成功通过了广泛的泄漏率合格测试。测试是在马歇尔太空飞行中心的10英尺直径和12英尺高的“ Sunspot”真空室中进行的。由于舱口盖在其预测的极端温度下进行了热循环,因此使用氦质谱仪检漏仪对所有舱口盖密封件进行了泄漏率测试。测试设置旨在提供最大的测试灵敏度并同时对多个密封件进行泄漏测试,以减少测试流程时间。该测试是ISS节点,实验室,居住和国际飞行元素上使用的舱口盖合格计划的一部分。

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