During the process of using trivalent chromium black passivation agent for galvanizing, we sometimes find flow marks on the surface of the produced workpiece. What is the reason for this?
During the process of using bright nickel plating additives, we sometimes find that the leveling effect of the plating solution is relatively poor. What is the reason for this?
During the process of using sulfuric acid type matte tin additives, we sometimes find streaks on the coating of workpieces. What is the reason for this?
In the process of using alkaline zinc nickel alloy brightener, sometimes the pre-treatment of the workpiece is clearly very clean, but after plating the zinc nickel alloy, the coating appears pinhole phenomenon. What is the reason for this?
A friend consulted and said that during the process of using bright nickel plating additives, there is a particle sensation on the surface of the workpiece coating. What is the reason for this?
In the process of using Pyrophosphoric acid copper brightener, sometimes the coating appearance of the workpiece produced is white red and shiny around the concave hole. What is the reason?
