Preparation and renovation of a fusion roller for a xerographic

Details Preparation and renovation of a fusion roller for a xerographic Preparation and renovation of a fusion roller for a xerographic

1986-02-11

1987-10-20

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

524433, 524544, 29132, 291484D, 118 60, 355 3FU, B23P 1700, C08K 322

Patent

active

047004509

ABSTRACT:
The invention relates to a method of preparation of an outer cover of a fusion roller for a xerographic machine, this cover being constituted by a homogeneous layer covering a hollow metal core receiving heating means.
According to the invention, this method comprises the steps of (a) cold kneading a mixture having, for 100 parts of fluorine-containing rubber, 55 to 60 parts of carbon black, 2 to 6 parts of magnesium oxide, 4 to 8 parts of calcium hydroxyde and 0 to 2 parts of polyethylene wax; (b) forming the covering material by extrusion or calendering of this mixture; (c) application of this material in a homogeneous layer to the surface of the metallic core of the roller; (d) vulvanization at elevated temperature and under pressure of the material thus applied to the core; (e) dressing of the cover to a constant thickness.

REFERENCES:
patent: 3877125 (1975-04-01), Finzer
patent: 3929095 (1975-12-01), Thetto
patent: 3934547 (1976-01-01), Jelfo et al.
patent: 3999038 (1976-12-01), Sikes, Jr. et al.
patent: 4083092 (1978-04-01), Imperial et al.
patent: 4149797 (1979-04-01), Imperial
patent: 4375505 (1983-03-01), Newkirk
patent: 4446270 (1984-05-01), Guenthner et al.
patent: 4503171 (1985-03-01), Stewart

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