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Composite bearing material with polymer filled metal matrix interlayer of distinct metal particle sizes and method of making same
Composite bearing material with polymer filled metal matrix interlayer of distinct metal particle sizes and method of making same
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机译:具有不同金属粒径的聚合物填充的金属基体中间层的复合轴承材料及其制造方法
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摘要
The present invention relates to a composite bearing material comprising three layers: (1) a metal backing, (2) a porous metal interlayer bonded to the metal backing which includes bronze or other copper alloy particles from two distinct particle size ranges and (3) a PTFE based composition intermixed with and overlying the porous metal interlayer. In accordance with the method of the present invention, the porous metal interlayer substantially comprises a relatively non- homogeneous mixture of particles from the two distinct particle size ranges, wherein a substantial portion of the relatively fine powder is segregated adjacent the metal backing. The present invention includes a significant thickness of the PTFE based composition applied to and remaining above the surface of the porous metal backing.
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