In the process of using alkaline zinc plating additives, sometimes the coating of the workpiece is prone to blistering and poor adhesion, which seriously affects the quality of the coating. What causes this?
Most of the rusty or thick surface parts are removed by mechanical methods such as sandblasting and shot blasting, but after mechanical rust removal, ensure that the surface of the workpiece is clean and free of scale.
Purpose of electroplating: In addition to requiring aesthetics, electroplating has different purposes according to various electroplating requirements.
In the production process when we use black zinc passivation agent, sometimes the film layer of the workpiece is foggy after passivation, which is...