In the production process of using acid tinning brightener, sometimes pinholes and streaks appear on the surface of the workpiece coating. What is the reason?
In the production process of using hard chrome additive, to obtain a hard chromium coating with a certain gloss, and the coating needs to have high hardness, good wear resistance and good adhesion, which operating points should be paid attention to?
In the process of using sulfate tin plating brightener, some large areas of workpieces have white spots on the coating around the seam, which seriously affects the appearance and performance of the workpieces.What causes this phenomenon?
In the process of using trivalent chromium black zinc passivation solution , wm is prone to problems such as missing coating, gray and flowery coating, poor adhesion of coating and easy to fall off.So what key points should we pay attention to in the production process?
In the process of using potassium chloride zinc plating brightener, we will encounter such a problem:After the bath is used for a period of time, the dispersion performance of the bath will decline, resulting in a large difference in the thickness of the high and low areas of the workpiece coating. How can we improve the dispersion performance of the bath?
In the process of using potassium chloride zinc plating additive, sometimes the workpiece at both ends of the hanger is prone to scorch. What is the reason?