发明名称 |
Device for longitudinal seam welding of metal tubes |
摘要 |
<p>The apparatus comprises a unit for forming a slit pipe out of a metal strip, and a unit for welding the longitudinal pipe slit. The welding unit is a laser welding unit with a welding head which is inclined at an angle to the vertical. Behind the laser welding head (1) there is a trap (3) for reflected laser beams (1b). The beam trap comprises a metal housing with water cooled walls whose inner surfaces are blackened. The beam trap is positioned relative to the laser welding head (1) in such a way that the reflected beams (1b) enter into the interior of its housing.</p> |
申请公布号 |
EP0897773(B1) |
申请公布日期 |
2003.01.08 |
申请号 |
EP19980401756 |
申请日期 |
1998.07.10 |
申请人 |
NEXANS |
发明人 |
STASCHEWSKI, HARRY;WANDELT, SIEGFRIED |
分类号 |
B23K26/03;B23K26/70;(IPC1-7):B23K26/00 |
主分类号 |
B23K26/03 |
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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