Mechanical plating with oxidation-prone metals

Details Mechanical plating with oxidation-prone metals Mechanical plating with oxidation-prone metals

1987-09-23

1989-01-24

Terapane, John F.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428559, 427242, 106 112, B22F 302, B32B 1516, C23C 2000

Patent

active

048001325

ABSTRACT:
In a mechanical plating process, oxidation-prone metals, such as aluminum, titanium, magnesium, and mixtures thereof, can be applied to metal substrates without the corrosion problems encountered in the prior art. To avoid such problems, the substrate is plated with the oxidation-prone metal and relatively minor amounts of an immersion metal and, optionally, a protective metal. The immersion metal which can be salts or oxides of metals selected from the group consisting of tin, copper, nickel, cadmium, zinc, lead, and mixtures thereof coats the oxidation-prone metal in forming a mechanical plating coating and prevents formation of an oxide layer on the oxidation-prone metal. The protective metal which may be selected from the group consisting of zinc, cadmium, and mixtures thereof prevents oxidation of the plated metal substrate when exposed to the environment. An etching agent is used either prior to and/or during mechanical plating.

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