发明名称 |
Gray iron composition and brake components formed thereof |
摘要 |
Improved gray iron compositions comprise at least about 90 weight % iron, at least about 3.40 weight % carbon, from about 1 to 2.5 weight % silicon, from about 0.4 to 1.0 weight % manganese, and from about 0.02 to 0.07 weight % tin. Preferably, the gray iron compositions of the invention also include from about 0.2 to about 0.5 weight % chromium, and may further preferably include from about 0.25 to 0.75% molybdenum and/or from about 0.3 to 1.0% copper, and may optionally also include small amounts (less than about 1%) of such elements as titanium or vanadium, as examples. The gray iron compositions which may advantageously be used in the manufacture of vehicle brake components, especially the braking surfaces of vehicle brake drums or brake rotors.
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申请公布号 |
US5948353(A) |
申请公布日期 |
1999.09.07 |
申请号 |
US19970992781 |
申请日期 |
1997.12.17 |
申请人 |
HAYES LEMMERZ INTERNATIONAL, INC. |
发明人 |
LAWRENCE, GARTH;PETERSEN, CRIS;VAN KOOTEN, PAUL;WOLFE, WILLIAM |
分类号 |
C22C37/06;(IPC1-7):C22C37/00 |
主分类号 |
C22C37/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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