发明名称 Railway car wheel
摘要 A railway car wheel comprises a rim having a flange and a tread portion. The tread portion contains 0.35-0.55% C and has a Vickers hardness of at least 360 and comprises a bainite structure, a tempered martensite structure, or a mixture of both.
申请公布号 US7566372(B2) 申请公布日期 2009.07.28
申请号 US20050128323 申请日期 2005.05.13
申请人 SUMITOMO METAL INDUSTRIES, LTD. 发明人 KATO TAKANORI;UMINO MASAHIDE;YAMAMOTO TOMOAKI
分类号 C22C38/22;B60B17/00 主分类号 C22C38/22
代理机构 代理人
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