Process and alloy for decorative galvanizing of steel

Details Process and alloy for decorative galvanizing of steel Process and alloy for decorative galvanizing of steel

C - Chemistry, Metallurgy

23

C

C23C 2/06 (2006.01) C22C 18/00 (2006.01) C22C 18/04 (2006.01)

Patent

CA 2425680

A process and an alloy for galvanizing non-reactive steel and mixed or moderately reactive steel for providing a decorative spangle to the galvanized coating. The alloy contains 0.1 to less than 0.8 wt% tin, 0.05 to 0.2 wt% bismuth, 0.001 to 0.008 wt% aluminium, and optionally 0 to 0.1 wt% nickel, the balance zinc of commercial purity.

La présente invention concerne un processus et un alliage permettant de galvaniser de l'acier non réactif et de l'acier mélangé ou modérément réactif de façon à obtenir un revêtement galvanisé pailleté décoratif. Cet alliage contient de 0,1 % à moins de 0,8 % en poids d'étain, de 0,05 % à 0,2 % en poids de bismuth, de 0,001 % à 0,008 % en poids d'aluminium, et éventuellement de 0 % à 0,1 % en poids de nickel, et le solde en zinc d'une pureté vendue sur le marché.

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