发明名称 |
Method of making a gas-tight joint between a corrugated high quality steel tube and a high quality steel sleeve |
摘要 |
The corrugation is removed from an end portion of a helically corrugated tube, and an internally threaded sleeve is threaded onto the tube. The sleeve has an unthreaded extension which is being drawn by a suitable tool to engage the smooth wall portion of the tube and is subsequently welded thereto.
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申请公布号 |
US4227639(A) |
申请公布日期 |
1980.10.14 |
申请号 |
US19780909369 |
申请日期 |
1978.05.25 |
申请人 |
KABEL- UND METALLWERKE GUTEHOFFNUNGSHUETTE AG |
发明人 |
BLUMENBERG, GUENTHER |
分类号 |
B23K9/23;(IPC1-7):B23K9/02;B23K5/02 |
主分类号 |
B23K9/23 |
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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