发明公开
EP2415885A1 METHOD OF COOLING WELDED RAIL SECTION, DEVICE FOR COOLING WELDED RAIL SECTION, AND WELDED RAIL JOINT
审中-公开
冷却方法焊接栏杆部分设备用于冷却焊接轨道部和无缝线路PUSH
- 专利标题： METHOD OF COOLING WELDED RAIL SECTION, DEVICE FOR COOLING WELDED RAIL SECTION, AND WELDED RAIL JOINT
- 专利标题（中）： 冷却方法焊接栏杆部分设备用于冷却焊接轨道部和无缝线路PUSH
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申请号： EP10761386.1申请日： 2010-03-30
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公开(公告)号： EP2415885A1公开(公告)日： 2012-02-08
- 发明人: KARIMINE, Kenichi , UEDA, Masaharu , IWANO, Katsuya , SUGIYAMA, Seiji
- 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： JP2009081587 20090330; JP2009175646 20090728
- 国际公布： WO2010116680 20101014
- 主分类号： C21D9/04
- IPC分类号： C21D9/04 ; B23K31/00 ; C21D9/50 ; E01B11/46 ; B23K101/26
摘要：
The invention provides a method of cooling a rail weld zone. The method includes a first rail web portion cooling process of cooling a rail web portion cooling region of the rail weld zone in a part of a temperature range until the completion of transformation from austenite to pearlite, a second rail web portion cooling process of cooling the rail web portion cooling region after the entire rail web portion of the rail weld zone is transformed to pearlite, a foot portion cooling process of cooling a foot portion of the rail weld zone, and a head portion cooling process of cooling a head portion of the rail weld zone. When cooling time of the first and second rail web portion cooling processes is t minute, a k value satisfies an expression represented as -0.1t+0.63≤k≤-0.1t+2.33.
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