What role does the masking method used in the plating of stainless steel screen have?

Stainless steel screen manufacturers steel le people stainless steel screen coating used by the masking method has what effect?

Masking method is a method to remove the harmful effect of impurities by adding a masking agent to the plating bath of stainless steel screen.This method does not need to filter the bath, also does not need other processing equipment, is a simple and feasible method.If there is a small amount of steel impurities in ammonia triethyl wine - iron chloride zinc plating solution, will make the stainless steel screen galvanized layer of passivation film luster is not good.At this time, as long as the content of thiourea in the zinc plating solution is appropriately increased, a small amount of copper impurities will be masked, the adverse effect will disappear quickly, a small amount of arsenic and antimony in the sulfate copper plating solution, will make the coating dark, slightly rough surface, as long as the right amount of gelatin and tannic acid added, can mask these harmful effects;

Coke drum phosphorus salt copper plating solution, if there is a small amount of iron impurities affect the coating quality, the masking can add just the right amount of citric acid salt, and if there is a small amount of zinc in the bright nickel plating liquid impurities exist, can make the stainless steel screen a low current density in plating coating dark even black, then add "NT" as long as the nickel plating liquid impurities masking agent, stirring moment, harmful effects disappear immediately, won the full bright stainless steel screen coating.These masking agents do not precipitate with harmful impurities, nor do they require further treatment by other methods such as activated carbon, so this is the easiest way to purify the bath.

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Source: gangleren.com, www.gangleren.com, furniture manufacturer of stainless steel screen