Electrolytic coloring of anodized aluminium by means of optical

Details Electrolytic coloring of anodized aluminium by means of optical Electrolytic coloring of anodized aluminium by means of optical

1979-01-16

1981-02-17

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 58, C25D 1112, C25D 1122

Patent

active

042513308

ABSTRACT:
In a process for the electrocoloring of anodized aluminium in which colors are obtained by interference effects the pores of an anodic oxide film, produced by D.C. anodizing in sulphuric acid, are enlarged by electrolytic treatment in an acid electrolyte having a high dissolving power for aluminium oxide under alternating current conditions.

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patent: 4066516 (1978-01-01), Sato
patent: 4066816 (1978-01-01), Sheasby et al.
W. Hubner and D. Schiltknecht, The Practical Anodising of Aluminum, MacDonald & Evans, London, 1960, pp. 24-25.

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