Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1989-05-09
1990-12-04
Niebling, John F.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
204 381, 204 387, 204 40, 204 41, 427406, 428658, 428667, 428674, 428675, 428679, 428935, C25D 510, B32B 1518
Patent
active
049753371
ABSTRACT:
A corrosion resistant coating and process comprises the following layers applied in sequence over a ferrous metal substrate: a micro-throwing nickel-zinc alloy plating; an optional galvanically protective zinc metal plating; a zinc-nickel alloy plating containing 5 to 30 weight percent nickel; and an organic coating such as paint. In place of the organic coating there may be utilized sequential layers of copper, nickel and chromium or chromium-substitute plating. The coating is preferably used with steel drill screw fasteners.
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Gradowski Steven
Hyner Jacob
Leader William T.
Niebling John F.
Whyco Chromium Company Inc.
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