Material for use in composite sliding surface bearings and proce

Details Material for use in composite sliding surface bearings and proce Material for use in composite sliding surface bearings and proce

1989-05-02

1991-06-18

Herbert, Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428327, 428328, 428332, 428335, 428421, 428422, 428463, B32B 516, B32B 1508

Patent

active

050248812

ABSTRACT:
A material for composite sliding surface bearings having a plastic sliding layer comprises a metallic backing layer and a sliding layer that is joined to the backing layer and consists of a matrix-forming fluorine-containing polymer, in which a metal powder having a high affinity to fluorine is finely dispersed. In order to reduce the friction torque and the wear rate, the fluorine-containing polymer contains metal fluoride and metal oxyfluoride and consists of monoclinally crystallized PVDF, amorphous PVDF and a novel polymer, which in an X-ray diffractogram prepared by CuK .alpha.-radiation has a sharp intensity peak at a double Bragg angle of 2.theta.=18.07.+-.0.03.degree. and has a melting range of 320.degree. to 350.degree. C. and is free of ortho-rhombically crystallized PVDF.

REFERENCES:
patent: 4309474 (1982-01-01), Hodes et al.
patent: 4394275 (1983-07-01), Bickle et al.

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