发明名称 |
VERBUNDMATERIAL MIT KONTINUIERLICHER AENDERUNG DER ZUSAMMENSETZUNG. |
摘要 |
This case relates to tough, wear resistant graded structure composites, to a process for preparing the same and to tools and products fabricated therefrom. The composites have a surface layer e.g. of WC and a binder, an interface layer, e.g. which is a stepwise transition from the surface layer whereby the binder content thereof gradually increases, a substrate layer which is a combination of e.g. an initial high carbon steel layer and finally a base layer of bainitic steel. The composites are substantially non-porous and can be used to fabricate components such as drill bits, wear plates, pump components machine tools, seals, washers, bearings and the like. |
申请公布号 |
DE3774981(D1) |
申请公布日期 |
1992.01.16 |
申请号 |
DE19873774981 |
申请日期 |
1987.09.04 |
申请人 |
THE BRITISH PETROLEUM CO. P.L.C., LONDON, GB |
发明人 |
BEGG, ALAN ROBERT;BROWN, COLIN WILLIAM;CHARMAN, NEIL EDWARD SETH, SUNBURY-ON-THAMES MIDDLESEX TW16 7LN, GB |
分类号 |
B32B15/04;B22F7/02;B22F7/06;(IPC1-7):B22F7/02;B32B15/02 |
主分类号 |
B32B15/04 |
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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