发明公开
EP2400040A1 PEARLITIC RAIL WITH EXCELLENT WEAR RESISTANCE AND TOUGHNESS
有权
美国麻省理工学院医学教授VESCHLEISSBESTÄNDIGKEITUND FESTIGKEIT
- 专利标题： PEARLITIC RAIL WITH EXCELLENT WEAR RESISTANCE AND TOUGHNESS
- 专利标题（中）： 美国麻省理工学院医学教授VESCHLEISSBESTÄNDIGKEITUND FESTIGKEIT
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申请号： EP10743487.0申请日： 2010-01-21
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公开(公告)号： EP2400040A1公开(公告)日： 2011-12-28
- 发明人: UEDA, Masaharu , MOROHOSHI, Takashi , SEKI, Kazunori
- 申请人： Nippon Steel Corporation
- 申请人地址： 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 专利权人： Nippon Steel Corporation
- 当前专利权人： Nippon Steel Corporation
- 当前专利权人地址： 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 代理机构： Vossius & Partner
- 优先权： JP2009035472 20090218
- 国际公布： WO2010095354 20100826
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/04 ; C22C38/58 ; C21D9/04
摘要：
This pearlitic rail consists of a steel including: in terms of percent by mass, C: 0.65% to 1.20%; Si: 0.05% to 2.00%; Mn: 0.05% to 2.00%; and REM: 0.0005% to 0.0500%, with the balance being Fe and inevitable impurities, wherein, in a head portion of the rail, a head surface portion which ranges from surfaces of head corner portions and a head top portion to a depth of 10 mm has a pearlite structure, and the hardness Hv of the head surface portion is in a range of 320 to 500.
公开/授权文献
- EP2400040B1 PEARLITIC RAIL WITH EXCELLENT WEAR RESISTANCE AND TOUGHNESS 公开/授权日：2015-11-25
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