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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
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代理人
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