Production of multiple zinc-containing coatings

Chemistry: electrical and wave energy – Processes and products

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428658, 428659, C25D 510

Patent

active

043148930

ABSTRACT:
Markedly superior corrosion protective properties are imparted to metal-bearing surfaces at substantially reduced costs by depositing upon said surfaces one or more superimposed coatings containing zinc alloying elements located intermediate the metal-bearing surfaces and a sacrificial layer of generally pure zinc. In this manner penetration of rust inducing substances into the metal bearing surfaces is effectively precluded under substantially all environmental conditions normally encountered.

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patent: 308447 (1884-11-01), Tucker
patent: 1468905 (1923-09-01), Herman
patent: 1984335 (1934-12-01), Crapo
patent: 3078555 (1963-02-01), McFarland
patent: 3190768 (1965-06-01), Wright
patent: 3383189 (1968-05-01), Sendzimir
patent: 3420754 (1969-01-01), Roehl
patent: 4059711 (1977-11-01), Mino et al.
patent: 4064320 (1977-12-01), Adaniya et al.

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