foerfarande and asked foer fixation of aluminium and alloys daerav after a anodiseringsbehandling

摘要

The anodized aluminum or alloy thereof is sealed in a bath at 15-30 DEG C containing an aqueous solution of nickel salts at a concentration of 0.1 to 50 g/liter and a non-ionic surfactant which lowers the surface tension of the cited bath to 30 to 35 dynes/cm range at a concentration of 25 to 200 ppm range. The non-ionic surfactant may be a fluorocarbon ester, a fluorinated ether or a polysiloxane.