发明名称 |
PROCEDE POUR LE DETENSIONNEMENT MECANIQUE D'UN TUBE DUDGEONNE SUR UN SUPPORT |
摘要 |
A tube which has been expanded in a support such as the tube-sheet of a heat exchanger is subjected to diametral deformation of controlled intensity and direction in the transition zone between the expanded portion of the tube and the portion which has a nominal diameter by means of an axially displaceable and radially expandable tool having a bullet-nosed shape or by means of a tube-expander of the type comprising a mandrel fitted with rollers or by means of a fluid under pressure. |
申请公布号 |
BE866448(A1) |
申请公布日期 |
1978.08.14 |
申请号 |
BE19780187166 |
申请日期 |
1978.04.27 |
申请人 |
ELECTRICITE DE FRANCE SERVICE NATIONAL |
发明人 |
G. LE HUEDE;G. ZACHARIE |
分类号 |
B21D39/06;F28F9/16;(IPC1-7):23P/ |
主分类号 |
B21D39/06 |
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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