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Tin-zinc Alloy Plating Knowledge

- Mar 16, 2017 -

In the protective coating of steel, Tin-zinc alloy occupies an important position, Tin-zinc alloy coating is Anodic coatings for steel surface, its chemical stability more than or equivalent to expensive metal cadmium, this coating can also be used for polishing, can remain unchanged for a long time, it is also easy to solder, not long "white hair".

In and aluminum parts contact Shi, easily formed corrosion electric I, it is compared ideal of protection-decorative sex alloy coating, containing zinc quality scores for 20%~30% of Tin zinc alloy coating, resistance corrosion sex highest, coating Crystal detailed, no pore; in sulfur dioxide atmosphere in the, also has good of resistance corrosion sex, coating after chrome acid salt passivation processing, can further improve its resistance corrosion sex, but containing Tin volume high of alloy coating passivation compared difficult.


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