Coating processes – Immersion or partial immersion – Molten metal or fused salt bath
Patent
1995-05-08
1996-12-03
Niebling, John
Coating processes
Immersion or partial immersion
Molten metal or fused salt bath
427433, B05D 118
Patent
active
055806139
ABSTRACT:
A Zn--Ni alloy having a high Ni content is used for supplying Ni.sup.2+ and Zn.sup.2+ ions into an acidic plating bath and for supplying Ni and Zn into a hot dip galvanizing bath. This alloy is characterized by being produced by using a flux consisting of a fused-salt former, which forms a salt having a melting temperature of 700.degree. C. or less, and Na.sub.2 B.sub.4 O.sub.7 and occasionaly additionally Na.sub.2 CO.sub.3. By using the inventive alloy, the bath can be quickly prepared, and Zn and Ni can be supplied to the bath without leaving the undissolved residue.
REFERENCES:
patent: 4569731 (1986-02-01), Matsuda et al.
patent: 4873153 (1989-10-01), Miller
patent: 4915906 (1990-04-01), Champagne et al.
patent: 4923573 (1990-05-01), Florian
Frederick A. Lowenheim, "Electroplating," McGraw-Hill Book, 1979, pp. 152-154.
Nishimura Eiji
Tasaki Hiroshi
Mayekar Kishor
Niebling John
Nippon Mining & Metals Co., Ltd.
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