Wear resistant composites

Details Wear resistant composites Wear resistant composites

1983-12-22

1986-06-24

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428 99, 428492, 428450, 428462, 428516, 428519, 264126, B32B 702

Patent

active

045967342

ABSTRACT:
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 elastomeric 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 can be formed by conventional cold working processes into desired configurations.

REFERENCES:
patent: 3690925 (1972-09-01), Morris
patent: 3979549 (1976-09-01), Wilkinson
patent: 4007298 (1977-02-01), Feehan
patent: 4307133 (1981-12-01), Haselier

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