发明名称 |
Pipe welding process using a metallic insert for improved corrosion resistance of the welded zone |
摘要 |
Avoidance of the corrosion initiation sites consisting of Mn particles deposited on the TiG welded inner tube surface is achieved through suppression of emission of manganese fumes by addition of a protective non corrosive metallic layer. The latter melts during the welding and arises in a non-corrosive internal metallic coating of the welded zone.
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申请公布号 |
US5368223(A) |
申请公布日期 |
1994.11.29 |
申请号 |
US19930057579 |
申请日期 |
1993.05.06 |
申请人 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
发明人 |
CHEVREL, HENRI;BOIREAU, ALAIN |
分类号 |
B23K9/02;(IPC1-7):B23K9/02 |
主分类号 |
B23K9/02 |
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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