发明名称 |
Low resistivity materials with improved wear performance for electrical current transfer and methods for preparing same |
摘要 |
A copper graphite composite material suitable for use in applications such as brushes, switches and contact materials for rail systems and other industrial devices. The composite comprises a copper network matrix having a plurality of pores containing graphite. The composite may have an IACS value of at least 40% which may even be higher than 70% and a density value of at least 6.0 g/cm<3>. The method for preparation of the composite comprises mixing graphite and copper powder under non-oxidising conditions, compacting the mixture and sintering under non-oxidising conditions.
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申请公布号 |
US6679933(B1) |
申请公布日期 |
2004.01.20 |
申请号 |
US20010857889 |
申请日期 |
2001.09.07 |
申请人 |
VICTORIAN RAIL TRACK;HE DA HAI;MANORY RAFAEL R. |
发明人 |
HE DA HAI;MANORY RAFAEL R.;GRADY NORMAN J.;SINKIS HARRY;PACHECO CLIM |
分类号 |
B22F1/00;B22F3/12;B22F5/00;B60L1/00;B60L5/08;B60L5/24;C22C1/05;C22C1/08;C22C1/10;C22C9/00;C22C32/00;F16C33/16;H01R41/00;H01R43/12;(IPC1-7):C22C9/00 |
主分类号 |
B22F1/00 |
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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