Coating processes – Rumbling or tumbling
Patent
1986-07-17
1988-02-09
Silverberg, Sam
Coating processes
Rumbling or tumbling
B05D 312
Patent
active
047241683
ABSTRACT:
Chipping, flaking, and cracking of mechanical galvanizing coatings applied on metal substrates is prevented by interposing between successive layers of plating metal, which are used in galvanizing the metal substrate, a layer of cushioning metal. Each interposed layer of cushioning metal imparts malleability to the coating such that chipping, cracking, and flaking is prevented or substantially reduced. The plating metal is preferably zinc, while the cushioning metal is preferably tin, lead, or mixtures thereof.
REFERENCES:
patent: 3400012 (1968-09-01), Golben
patent: 3460977 (1969-08-01), Golben
patent: 4389431 (1983-06-01), Erismann
Grunwald John J.
Leever Harold
Whitmore Bryan
MacDermid Incorporated
Silverberg Sam
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