【摘要】 介绍了用于航天低温加注系统真空绝热管路的抽空技术,其中包括抽空设备的配置、准备工作及抽空过程,并对所得结果进行了研究。得出了适用于本系统真空绝热管路的真空寿命及在真空寿命内常温下允许的压强回升值等工程参数。更多还原

【Abstract】 The deflation technology for vacum tube of cryogentic loading system in spaceflight is introduced. The equipment distribution, preparation and the process of deflation are included in the introduction . The result is discussed. The engerneering parameters of this system are obtained.更多还原