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《GRYOGENICS》 1999-01
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HELIUM LEAK TESTING FOR STEADY SEAL UNDER THE CONDITION OF LOW-TEMPERATURE HIGH-PRESSURE

Lin Peng Mao Yuzhu Zhang Qinggeng Yu Lihong(Cryogenic Laboratory, Chinese Academy of Sciences, Bijing 100080)Zhong Jiaqiang Li Chulin Bac Jinhua(Xi'an Institute, China Academy of Launch Vehicle Technology, Beijing 100076)  
This paper presents the construction of an apparatus to test the heliumleak of a steady seal device, with a sensitivity of 0. 5 X 10 10 pa .m3/s using a mass spectrometer. The temperature of steady seal device was controlled to 20 K and the pressure inside thedevice was applied up to 24 MPa. The testing results are also presented in this paper.
【CateGory Index】: V433.9
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【Co-references】
Chinese Journal Full-text Database 3 Hits
1 Wu Cheng-weiDepartment of Mechanical Engineering, Dalian University cf Techr.clcgy;ADVANCES IN STUDIES ON CONTACTS OF ROUGH SURFACES[J];Advances In Mechanics;1991-01
2 YANG Nan, CHEN Da rong, KONG Xian mei (State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China);Elastic-Plastic Finite Element Analysis of Multi-Asperity Contacts[J];TRIBOLOGY;2000-03
3 Feng Xiu Gu Boqin(College of Mechanical Engineering and Power,Nanjing University of Technology,Nanjing Jiangsu 210009,China);The Research Status and Development Tendency of Surface Topography[J];Lubrication Engineering;2006-02
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