| 发明名称 |
METHOD OF ARC WELDING ROOT PASS |
| 摘要 |
A method for root pass welding steel plate and pipe is provided that uses pulse arc welding having a current pulse waveform exhibiting a low constant background current and fixed frequency. The welding process may be performed without a backer or backing material.
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| 申请公布号 |
US2011108527(A1) |
申请公布日期 |
2011.05.12 |
| 申请号 |
US20090616181 |
申请日期 |
2009.11.11 |
| 申请人 |
LINCOLN GLOBAL, INC. |
发明人 |
PETERS STEVEN R.;DRAGOLICH, JR. FRANK M.;BARTON DAVID |
| 分类号 |
B23K9/09;B23K9/16;B23K9/18 |
主分类号 |
B23K9/09 |
| 代理机构 |
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