Method of simultaneously plating dissimilar metals

Details Method of simultaneously plating dissimilar metals Method of simultaneously plating dissimilar metals

1975-10-21

1977-03-22

Ansher, Harold

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

291966, 29197, 156664, 156665, 156666, 204 32R, 204 33, 204 34, 427438, 428416, C25D 544, C25D 536, C23C 300, B32B 1520

Patent

active

040134920

ABSTRACT:
A method of simultaneously preparing and plating two parts attached together in an assembly, which parts are of different materials, such as steel and aluminum, and are incompatible with one another in the plating preparation process. The method includes the steps, in the following order, of (a) degreasing such an assembly with trichloroethylene vapors for a period of 3 to 5 minutes, (b) clean with a heated alkaline cleaner for a period of 15 seconds, then rinse with water, (c) clean with muriatic acid for a period of 5 seconds, then rinse with water, (d) repeat steps (b) and (c) once again, (e) dip assembly in zincate solution for a period of 2 minutes, then rinse with water, and (f) plate the exposed surfaces of the assembly. The method also includes the steps of first cleaning the parts separately, attaching the parts together, and machining the assembly before initiating the above steps. An article constructed in accordance with the above is also disclosed.

REFERENCES:
patent: 2615768 (1952-10-01), Schluchter
patent: 2662831 (1953-11-01), Culverhouse
patent: 2897588 (1959-04-01), Chapman
patent: 3083444 (1963-04-01), Mitchell et al.
patent: 3401026 (1968-09-01), Walker et al.
patent: 3416975 (1968-12-01), Webb
patent: 3497951 (1970-03-01), Reighter
patent: 3666529 (1972-05-01), Wright et al.
patent: 3898095 (1975-08-01), Berdan et al.
patent: 3969199 (1976-07-01), Berdan et al.
patent: 3982055 (1976-09-01), Howard

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