Multilayer plated aluminum sheets

Details Multilayer plated aluminum sheets Multilayer plated aluminum sheets

1992-12-17

1994-10-18

Zimmerman, John

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428658, 428935, B32B 1520

Patent

active

053567234

ABSTRACT:
A multilayer plated aluminum sheet suitable for use in automobile body panels comprises a base aluminum sheet made of aluminum or an aluminum alloy and has a first layer of zinc or a zinc alloy formed by displacement plating on the surface of the aluminum sheet and one or more layers of electroplated coating formed on the first layer by electroplating in an acidic bath. Preferably, the upper electroplated coating comprises at least one layer of zinc or a zinc alloy and the uppermost layer of the coating is formed from a metallic material having a melting point above 500.degree. C.

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patent: 3969199 (1976-07-01), Berdan et al.
patent: 4273837 (1981-06-01), Coll-Palagos
patent: 4920639 (1990-07-01), Ohshima et al.
Walter Meyer, "Electroplating on Aluminum", The Monthly Review, Mar. 1946, pp. 269-270, 273-274, 277.
T. E. Such et al, "An Improvement in the Zincate Method for Plating on Aluminum", Plating, vol. 52, No. 10, Oct. 1965, pp. 1027-1034.
George A. DiBari, "Plating on Aluminum: Pretreatments and Corrosion Performance", Plating and Surface Finishing, vol. 64, No. 5, May 1977, pp. 68-74.
Cveta Milovanovic et al, "Direct Nickel Plating on Aluminum and its Alloys", Chemical Abstracts, vol. 72, No. 10, Mar. 9, 1970, p. 530.

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