| 发明名称 |
Method of making or transition section of a rail and rail made by this method. |
| 摘要 |
<p>The two ends of the rail have different cross-sections (22a) (22b), while a progressive transition zone, of a certain length (Lb), is provided between these two ends. The deformation is achieved by hot forging between two movable dies. <IMAGE></p> |
| 申请公布号 |
EP0573702(A1) |
申请公布日期 |
1993.12.15 |
| 申请号 |
EP19920201678 |
申请日期 |
1992.06.10 |
| 申请人 |
KIHN S.A.R.L. |
发明人 |
RISCH, CHARLES;BRAQUET, JEAN-POL |
| 分类号 |
B21K7/02;(IPC1-7):B21K7/02 |
主分类号 |
B21K7/02 |
| 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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