In the production process of using zinc nickel alloy color passivator, sometimes the passivation film of the workpiece will have uneven colors of black, yellow and blue. What causes this?
In the process of using alkaline zinc nickel alloy additives, the current efficiency of the bath itself is relatively low, only about 70%, and sometimes the current efficiency of the bath is lower. Is this caused by the low concentration of sodium hydroxide in the bath?
We can obtain uniform light blue to bluish blue passivation film with strong corrosion resistance when using zinc nickel alloy trivalent chromium blue passivator.What points should we pay attention to in the use process?
In the process of using organic acid fog tin additive, what matters should we pay attention to during production in order to ensure the smooth and uniform coating of the produced workpiece and superior solderability?
When we use acid copper brightener for production, a small amount of chloride ion is required in the plating solution to obtain a full bright copper plating layer.Chlorine ion plays a role in expanding the bright range, and can catalyze and help brightener plating a uniform, bright, smooth and compact copper coating.So, how should we analyze the concentration of chloride ions in the plating solution during production?
In the production process of using decorative chromium plating additives, hexavalent chromium is the main plating solution, which is very harmful to human health, and the waste water and waste gas discharged will also have a great impact.So what can we do to reduce the pollution of hexavalent chromium?
