Chemistry: electrical and wave energy – Processes and products
Patent
1985-01-31
1986-12-30
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
204 42, C25D 1122
Patent
active
046327355
ABSTRACT:
A process for the electrolytic coloring of aluminum or aluminum alloys consisting of subjecting the previously anodized piece to two electrolytic treatments in a coloring solution (solution of soluble metal salts). The first consists of an alternating current treatment with an elevated positive polarization, to cause a modification in the pores of the anodic layer. After this electrolytic treatment and in the same bath, the sample is colored by applying thereto an alternating current. The electrolytic treatment prior to coloring permits colors differing from those produced in conventional coloring to be obtained.
REFERENCES:
patent: 3704209 (1972-11-01), Patrie
patent: 3788956 (1974-01-01), Patrie
patent: 3892636 (1975-07-01), Kaneda et al.
patent: 3915813 (1975-10-01), Abe
patent: 4021315 (1977-05-01), Yanagida et al.
patent: 4251330 (1981-02-01), Sheasby et al.
Gazapo Santa-Olalla Jose L.
Gonzalez Feliu Juan
Empresa Nacional del Aluminio, S.A.
Leader William T.
Niebling John F.
LandOfFree
Process for the electrolytic coloring of aluminum or aluminum al 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 the electrolytic coloring of aluminum or aluminum al, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the electrolytic coloring of aluminum or aluminum al will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1545715