发明授权
- 专利标题: GLEISTEILE SOWIE VERFAHREN ZUR HERSTELLUNG DIESER
- 专利标题(英): Railway-track elements and method of manufacturing them
- 专利标题(中): 跟踪零件和方法生产这些
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申请号: EP93901743.0申请日: 1993-01-10
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公开(公告)号: EP0620865B1公开(公告)日: 1996-04-24
- 发明人: HELLER, Wilhelm , RATZ, Gerhard
- 申请人: BWG Butzbacher Weichenbau GmbH
- 申请人地址: Wetzlarer Strasse 101 D-35510 Butzbach DE
- 专利权人: BWG Butzbacher Weichenbau GmbH
- 当前专利权人: BWG Butzbacher Weichenbau GmbH
- 当前专利权人地址: Wetzlarer Strasse 101 D-35510 Butzbach DE
- 代理机构: Stoffregen, Hans-Herbert, Dr. Dipl.-Phys.
- 优先权: DE4200545 19920111
- 国际公布: WO9314230 19930722
- 主分类号: C21D9/04
- IPC分类号: C21D9/04 ; C22C38/22 ; C22C38/24
摘要:
In order to be able to use a railway-track element (10) not only for normal track but also for points, the invention proposes the use of a 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 (10) 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 (16).
公开/授权文献
- EP0620865A1 GLEISTEILE SOWIE VERFAHREN ZUR HERSTELLUNG DIESER 公开/授权日:1994-10-26
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