发明名称 |
Apparatus for hydraulically expanding a tube |
摘要 |
A mandrel that forms an annular space when inserted within a tube and has O rings adjacent each end and a leading end having a tapered portion and a spring cooperatively associated with the O ring to facilitate sliding the mandrel into the tube and forming a fluid-tight seal adjacent the leading end of the mandrel so that pressurized fluid can be introduced into the annular space to expand the tube into engagement with a tube sheet.
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申请公布号 |
US4125937(A) |
申请公布日期 |
1978.11.21 |
申请号 |
US19770810817 |
申请日期 |
1977.06.28 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
BROWN, PHILIP S.;HARMAN, DOUGLAS G. |
分类号 |
B21D39/08;B21D39/06;B21D39/20;(IPC1-7):B23P15/26 |
主分类号 |
B21D39/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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