Metal gasket and method of producing the same

Details Metal gasket and method of producing the same Metal gasket and method of producing the same

1989-07-28

1992-07-14

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of metal

428462, 428463, 428492, 428519, B32B 1504, B32B 1506

Patent

active

051302039

ABSTRACT:
A method of producing a metal gasket includes steps of alkaline cleaning a metal plate, coating a non-rinse chemical for chromate conversion of surfaces of the metal plate and drying to form chromate films, coating an adhesive on the chromate films and drying or baking the adhesive to form adhesive layers, and coating a rubber compound of a sheet-like or an amorphous mixed compound to a predetermined thickness on the adhesive layers and heating and vulcanizing the rubber compound to form rubber coated metal plate. A metal gasket manufactured in this manner has a high bonding power of the rubber layers to the metal plate to obtain an improved durability for long use.

REFERENCES:
patent: 2957784 (1960-10-01), Schiefelbein
patent: 4088621 (1978-05-01), Miller
patent: 5004650 (1991-04-01), Ashizawa et al.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Ed. vol. 15, pp. 307-308, John Wiley & Sons, New York, 1982.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Ed., vol. 20, pp. 400, 434, John Wiley & Sons, New York, 1982.
Handbook of Adhesives, Third Ed., pp. 206-207, Van Nostrand Reinhold, New York, 1990.

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