Precoated metal plate for heavy forming use

Details Precoated metal plate for heavy forming use Precoated metal plate for heavy forming use

1988-04-04

1989-11-21

Silverberg, Sam

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428149, 148251, C23C 2224

Patent

active

048822159

ABSTRACT:
A precoated metal plate for heavy forming use comprising a metal plate having on its surface a coating which is prepared by applying an aqueous composition consisting essentially of a binder component (A) and hard inorganic microparticles (B) and which is 0.05 to 5 .mu. thickness, the binder component (A) being an aqueous resin or a combination of aqueous resin and a water-soluble chromium compound containing 30 to 90% by weight of hexavalent chromium, the microparticles having Mohs' hardness of 3 to 9 and an average grain diameter of 0.1 to 20 .mu., and the coating being characterized by having a percentage of horizontal sectional area of the inorganic microparticles protruded beyond the film surface of said binder component at the film surface of 5% or more. The coated metal plate is specifically useful for heavy forming purpose.

REFERENCES:
patent: 3676208 (1972-07-01), Griffen
patent: 4282281 (1981-08-01), Ethan
patent: 4348447 (1982-09-01), Miller
patent: 4606963 (1986-08-01), Farrell

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