In the production process of using sulfate tin plating additives, the concentration of Sn2+ in the plating solution is often out of control.With the prolongation of production time, the concentration of Sn2+ will rise rapidly. When the concentration of Sn2+ exceeds 35g/L, the plating solution begins to deteriorate and the deep plating ability is poor.What is the main reason for the out-of-control Sn2+ concentration?
In the production process of using acid matte tin additives, sometimes the coverage of the tin plating layer is poor, which affects the quality of the plating layer. What is the reason?
In the production process of using acid tin plating brightener, sometimes pinholes appear on the surface of the tin plating layer of the workpiece. What is the reason?
In the production process of using sulfate electroplating tin additives, sometimes there will be white fog on the tin plating layer. What is the reason?
In the production process of using sulfate tin plating additives, sometimes the corners of the workpiece appear scorched. What is the reason?
In the production process of using acid tin plating brightener, since the workpiece is easy to bring Fe2+ into the plating solution during the pickling process, the Fe2+ solution produced by the corrosion of the steel equipment is easily brought into the plating solution.So what effect does Fe2+ have on the performance of the tin plating layer?
