Composite bearing material with polymer filled metal matrix inte

Details Composite bearing material with polymer filled metal matrix inte Composite bearing material with polymer filled metal matrix inte

1986-09-29

1988-03-22

Bentley, Stephen C.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428548, 428550, 428551, 428553, 419 2, 419 7, 419 9, 419 10, 419 23, 419 27, 419 29, 252 122, B22F 300, C21D 100, C22C 3200

Patent

active

047328185

ABSTRACT:
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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Preliminary Information about TEFLON--Fabrication of Sheeting and Tape by the HS-10 Process--E. I. du Pont de Nemours & Co. (10 pages) date unknown.
HS-10 Process (25 pages) date unknown.

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