Sealing structure of aluminium alloy and stainless steel flange
Title：
Sealing structure of aluminium alloy and stainless steel flange
Application Number：
 200410009945
Application Date：
 2004/12/03
Announcement Date：
 2005/05/25
Pub. Date：
 2006/08/30
Publication Number：
 1619202
Announcement Number：
 1272566
Grant Date：
 2006-8-30
Granted Pub. Date：
 2006-8-30
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 F16L 23/20
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Sheng Xuanyu, He Shuyan, Wu Xinxin
Key Words：
 Sealing structure, aluminium alloy, stainless steel flange
Abstract：
 The present invention relates to a seal structure for aluminum alloy and stainless steel flanges. Said structure includes aluminum alloy flange, stainless steel flange and two metal sealing rings. On the contact surface of said stainless fteel flange the internal and external two-channel sealing grooves are cut, said two metal sealing rings are respectively mounted in said sealing grooves, so that two flanges can utilize the pre-clamping force provided by connecting bolts and nuts to make two metal sealing rings be clamped on said seal surface.
Claim：
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PCT：
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2008-4-17
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