Metal gasket having first and second diversely vulcanized coatin

Details Metal gasket having first and second diversely vulcanized coatin Metal gasket having first and second diversely vulcanized coatin

1992-12-23

1994-10-11

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277235B, 277DIG6, F16J 1510

Patent

active

053540743

ABSTRACT:
A metal gasket having a base plate and coating layers deposited thereon. A first coating layer (10) having a first vulcanizing agent is deposited on a metallic base plate (1). A second coating layer (20) is deposited on the first coating layer (10) and has a second vulcanizing agent. The first coating layer (10) and the second coating layer (20) are vulcanized with different vulcanized rates from each other. For instance, a cold type vulcanizing coating layer, which is vulcanized at an ordinary temperature, and a hot type vulcanizing coating layer, which is vulcanized at a higher temperature than the ordinary temperature, are formed, and heated at a predetermined temperature to vulcanize only the former, so that two layers having different vulcanized rates from each other are formed to provide a vulcanized layer and an unvulcanized layer on the base plate.

REFERENCES:
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patent: 4196162 (1980-04-01), Stichter
patent: 4394205 (1983-07-01), Blenner
patent: 4681800 (1987-07-01), Zerfass et al.
patent: 4720316 (1988-01-01), Ruoff
patent: 5110630 (1992-05-01), Abe et al.
patent: 5122214 (1992-06-01), Zurfluh et al.
Patent Abstracts of Japan, vol. 14, No. 536, JP-A-22 27 217, Sep. 10, 1990.
Patent Abstracts of Japan, vol. 16, No. 302, JP-A-40 83 975, Mar. 17, 1992.

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