B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/85
B32B 15/08 (2006.01) B29C 43/18 (2006.01) B29C 43/20 (2006.01) B29C 70/68 (2006.01) B29C 70/78 (2006.01) F16C 27/06 (2006.01) F16C 33/20 (2006.01)
Patent
CA 1162467
Abstract of the Disclosure A composite (10) which presents a layer (20) of ultra high molecular weight polyethylene as the wear resistant surface. The polyethylene layer (20) is secured to a metallic backing plate (12) by virtue of an elasto- meric layer (13) that is interposed between the metallic backing plate (12) and the polyethylene layer (20) and is bonded to each without the polyethylene and the metallic backing plate being otherwise bonded to each other. This configuration provides a means by which to mount a wear resistant polyethylene layer from a metallic backing plate and at the same time accommodate the difference between the disparate coefficients of expansion of polyethylene and metal. The composite (10) can be readily formed by placing a layer of uncured elastomer (13) on the prepared surface (11) of a metallic backing plate (12), spreading an ultra high molecular weight polyethylene powder (15) over the uncured elastomer and heating the thus assembled components, preferably under pressure, to cure the elastomer and melt the polyethylene powder. When cooled, and the melted powder (15) coalesces into polyethylene layer (20), the resulting wear resistant composite (10) can be formed by conventional cold working processes into desired config- urations.
370473
Goodrich (b.,f.) Company (the)
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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