| 发明名称 |
GEBRAUCH VON HELIUM/STICKSTOFF-GASGEMISCHEN BEIM SCHWEISSEN VON STAHLROHREN |
| 摘要 |
Two longitudinal edges of a sheet of austenitic, ferritic or martensitic stainless steel are welded together by employing at least one laser beam having a power of 12 kW. A gas mixture containing 30-80 vol.% of nitrogen and remainder of helium (up to 100%), is used to carry out full-penetration or almost full-penetration welding. An Independent claim is included for manufacture of welded pipe. |
| 申请公布号 |
AT418414(T) |
申请公布日期 |
2009.01.15 |
| 申请号 |
AT20030291361T |
申请日期 |
2003.06.06 |
| 申请人 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
发明人 |
BRIAND, FRANCIS;CHOUF, KARIM;LEFEBVRE, PHILIPPE;VERNA, ERIC |
| 分类号 |
B23K26/12;B23K26/26;B23K26/30;B23K26/32;B23K35/38 |
主分类号 |
B23K26/12 |
| 代理机构 |
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代理人 |
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