| 发明名称 |
Railway-track elements and method of manufacturing them |
| 摘要 |
A railway-track element is disclosed not only for normal track but also for rail points. The track element is formed of vacuum-treated steel containing at least 0.53 to 0.62% C, 0.65 to 1.1% Mn, 0.8 to 1.3% Cr, 0.05 to 0.11% Mo, 0.05 to 0.11% V and </=0.02% P, the balance being iron plus the usual production-related impurities. The track element is in the form of a rail made of rolled pearlitic steel. If the track element is to be used for points, the starting material is a length of rolled rail with a martensitic structure produced by heat treatment at least in the rail head area.
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| 申请公布号 |
US5482576(A) |
申请公布日期 |
1996.01.09 |
| 申请号 |
US19940256148 |
申请日期 |
1994.07.08 |
| 申请人 |
BWG BUTZBACHER WEICHENBAU, GMBH |
发明人 |
HELLER, WILHELM;RATZ, GERHARD |
| 分类号 |
C21D9/04;C22C38/22;C22C38/24;(IPC1-7):C22C38/24 |
主分类号 |
C21D9/04 |
| 代理机构 |
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