In the production process of using acid zinc plating additives, sometimes small black spots appear on the galvanized layer of the workpiece. What is the reason?
When aluminum workpieces are produced with electroless nickel plating solution, sometimes pinholes appear in the coating of workpieces. What is the reason?
When using acid zinc plating additives for barrel plating production, it has the characteristics of bright coating, high current efficiency, simple bath components, and easy maintenance.But in production, the current density should not be too large, why?
In the production process of using alkaline galvanizing additives, sometimes such a phenomenon occurs: the drum suddenly explodes while rotating. What is the reason?
In the production process of using acid galvanized brightener, the quality of the passive film of galvanized workpiece and the improvement and stability of corrosion resistance are very important.The choice of passivation agent, whether the operating procedure is in place, whether the method is appropriate, etc. will play a decisive role in the quality of the passivation film of the workpiece.
When we use electroless nickel plating solution, some customers require the workpiece to have high hardness and high corrosion resistance. How to do this?