Process for coloring aluminum anodic oxide film

Details Process for coloring aluminum anodic oxide film Process for coloring aluminum anodic oxide film

1972-05-15

1976-06-08

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

204 58, C25D 1114, C25D 1122, C25D 1104

Patent

active

039620492

ABSTRACT:
An aluminum or aluminum alloy member is immersed in an acidic bath and is subjected to passage of an electrical current to form an anodic oxide film. The applied voltage is lowered either stepwise, linearly, or suddenly to a value in the range between about two-thirds and one one-hundredth, and the voltage is maintained at the lower value for a predetermined period of time, optionally with periodic interruption. The member with the thus formed anodic oxide film is then subjected to an electrolytic coloring treatment.

REFERENCES:
patent: 3382160 (1968-05-01), Asada
patent: 3635802 (1972-01-01), Manning et al.
patent: 3664932 (1972-05-01), Patrie
patent: 3666638 (1972-05-01), Harris et al.
patent: 3674659 (1972-07-01), Livermore et al.

Affiliated with

Also associated with

Rating

Process for coloring aluminum anodic oxide film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for coloring aluminum anodic oxide film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for coloring aluminum anodic oxide film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1096625