Method for improving the corrosion resistance and...

Details Method for improving the corrosion resistance and... Method for improving the corrosion resistance and...

C - Chemistry, Metallurgy

25

D

C25D 11/24 (2006.01) C09D 183/16 (2006.01)

Patent

CA 2627399

Disclosed is a method for producing corrosion-resistant, painted oxide layers on aluminum or aluminum alloys. According to said method, a polysilazane solution is applied to a dry oxide layer that is painted with a water-soluble, anionic color, and the coating is then hardened at a temperature ranging from 40 to 150oC.

L'invention concerne un procédé pour produire des couches d'oxyde colorées résistantes à la corrosion sur l'aluminium ou sur des alliages d'aluminium, lequel procédé consiste à appliquer une solution de polysilazane sur une couche d'oxyde sèche colorée au moyen d'un colorant anionique soluble dans l'eau puis à faire durcir le revêtement à une température comprise entre 40 et 150 °C.

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