| 发明名称 |
Method of manufacturing rails |
| 摘要 |
At the outlet of a hot rolling mill the temperature of a hot rolled rail is reduced to a value not lower than that at which the pearlitic transformation begins in the rail head. The continuously moving rail is then rapidly cooled to below 650 DEG C. so that at least 80% of the austenite-pearlite transformation has occurred at the end of rapid cooling. The rail is then cooled to ambient temperature.
|
| 申请公布号 |
US4486243(A) |
申请公布日期 |
1984.12.04 |
| 申请号 |
US19830540523 |
申请日期 |
1983.10.11 |
| 申请人 |
CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE;METALLURGIQUE & MINIERE DE RODANGE-ATHUS, SA. |
发明人 |
LAMBERT, NICOLE;SIMON, PIERRE;CONTI, RENE |
| 分类号 |
B21B45/02;B21B1/085;C21D1/667;C21D9/04;(IPC1-7):C21D9/04;C21D9/06 |
主分类号 |
B21B45/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
