| 发明名称 |
COATED WELDING ELECTRODE OF BASIC TYPE SUITABLE FOR VERTICAL DOWN WELDING OF PIPES |
| 摘要 |
Basic coated welding electrodes for downhand welding of fixed pipes, the non-metallic portion of the coating containing calcium carbonate and calcium fluoride in a weight ratio between 10 and 20, also comprising at least 35% by weight of iron powder. |
| 申请公布号 |
DE3062980(D1) |
申请公布日期 |
1983.06.09 |
| 申请号 |
DE19803062980 |
申请日期 |
1980.10.28 |
| 申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
MENTINK, HENRICUS;VAN ROOIJEN, HENDRIKUS |
| 分类号 |
B23K35/365;(IPC1-7):23K35/365 |
主分类号 |
B23K35/365 |
| 代理机构 |
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代理人 |
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