Coloring process for anodized aluminum products

Details Coloring process for anodized aluminum products Coloring process for anodized aluminum products

C - Chemistry, Metallurgy

25

D

204/24.6

C25D 11/14 (2006.01) C25D 11/22 (2006.01)

Patent

CA 1227157

ABSTRACT The invention relates to an electrolytic method of coloring anodized aluminum work pieces in an acidic aqueous electrolyte containing nickel sulfamate in amounts from 50 to 150 grams per liter (expressed as nickel) at temperatures above 35°C. The coloring voltage ranges from 5 to 40 volts (AC).

449466

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