| 发明名称 |
Aluminothermic welding - of railway rails |
| 摘要 |
<p>Aluminothermic welding of treated rails is effected without pre-heating in a region with its width reduced to the minimum compatible with obtaining a weld by cooling regions close to the weld zone. Reduces tendency to softening in the weld region.</p> |
| 申请公布号 |
FR2123862(A5) |
申请公布日期 |
1972.09.15 |
| 申请号 |
FR19710003611 |
申请日期 |
1971.02.03 |
| 申请人 |
BOUTET CAMILLE |
发明人 |
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| 分类号 |
B23K23/00;E01B11/52;(IPC1-7):23K23/00;01B11/00 |
主分类号 |
B23K23/00 |
| 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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