Method for forming an anticorrosive coating on a metal substrate

Details Method for forming an anticorrosive coating on a metal substrate Method for forming an anticorrosive coating on a metal substrate

1981-02-12

1982-09-14

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 35, 427 531, 4273768, 427423, B05D 108

Patent

active

043495818

ABSTRACT:
A method for forming an anticorrosive coating on the surface of a metal substrate, which comprises, in one embodiment, (1) coating the surface of the metal substrate with an anticorrosive metal capable of forming an alloy with the substrate metal using a spraying procedure, and (2) then heating the coated surface in a vacuum or in an atmosphere substantially inert to the metal coating and metal substrate by irradiating electron beams or a plasma arc thereonto to form an alloy layer in the interface between the metal substrate and the metal coating and, in a second embodiment, subsequent to step (1) and prior to step (2) above coating a solution of a thermally decomposable platinum-group metal compound on the surface of the resulting coating, and heat-treating the coated product at about 50.degree. to about 300.degree. C.

REFERENCES:
patent: 3265526 (1966-08-01), Beer
patent: 3663414 (1972-05-01), Martinsons et al.
patent: 4039698 (1977-08-01), Fraser et al.
patent: 4145481 (1979-03-01), Gupta et al.
patent: 4157923 (1979-06-01), Yen et al.
patent: 4157943 (1979-06-01), Scarpellino et al.

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