Sliding material and method of manufacturing the same

Details Sliding material and method of manufacturing the same Sliding material and method of manufacturing the same

1991-02-26

1992-02-25

Medley, Margaret

Compositions

Electrolytes for electrical devices

252 12, 252 124, 252 126, C10M14702, C10M14704

Patent

active

050910981

ABSTRACT:
A sliding material comprising a backing metal having a porous metal layer formed on the surface thereof and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein the composition for impregnation coating is a composition composed of (a) 0.5-30 vol. % of at least one material selected from a group of resins composed of PFA, EPE, and FEP, 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm.sup.2 /g in an average particle size, and the balance composed of PTFE, a total of the respective components other than the PTFE is 5.5-50 vol %, a sliding material comprising a backing metal having porous metal layer formed on the surface thereof and a composition for impregnation coating impregnated and coated to the pores and the surface thereof composed of 0.5-30 vol % of at least one material selected from resins composed of PFA, EPE, and FEP, 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm.sup.2 /g in an average particle size, 0.5-30 vol % of at least one material selected from a filler composed of solid lubricant metal oxide, metal fluoride, graphite, a fiber selected from a ceramic of carbon fiber, glass fiber, and SiC, and the balance composed of PTFE, the respective components other than the PTFE being 6-50 vol %, and a method of manufacturing a sliding material comprising the steps of impregnating and covering the above composition for impregnation coating (a) or (b) to the pores and the surface thereof defined in the porous metal layer formed on the surface of a backing metal, and thereafter baking the backing metal with the above composition for impregnation coating (a) or (b) in a neutral atmosphere or in a reducing atmosphere.

REFERENCES:
patent: 2824060 (1958-02-01), White
patent: 4312772 (1982-01-01), Mori
patent: 4394275 (1983-07-01), Bickle et al.
patent: 4439484 (1984-03-01), Mori
patent: 4655944 (1987-04-01), Mori

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