发明名称 |
Method for the removal of rib plugs using a spiral TIG welding technique to relax the rib plug |
摘要 |
A method of removing rib plugs from steam generator tubes in energy producing units such as nuclear reactors includes the removal of the expander element or mandrel from the expanded part of the rib plug, TIG welding a bead on the available internal surface of the plug in a spiral manner from the bottom to the top thereof to relax the rib plug from its forced contact with the tube and removal of the rib plug as a unit from the tube after it has cooled down from the welding process.
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申请公布号 |
US6421916(B1) |
申请公布日期 |
2002.07.23 |
申请号 |
US20000724035 |
申请日期 |
2000.11.28 |
申请人 |
FRAMATOME ANP, INC. |
发明人 |
KLAHN KURT DAVID;KLAHN MARK ALAN |
分类号 |
B23P19/02;F28F11/02;(IPC1-7):B23P15/26 |
主分类号 |
B23P19/02 |
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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