After using acid copper plating brightener, the workpiece can obtain a coating with mirror brightness, strong ductility and flatness.Sometimes, the color of the coating will quickly become dark or brown after the workpiece is coated with acid copper. What is the reason?
According to the field experience and the characteristics of the product acid copper plating brightener Cu-510, Bigolly Technology has made analysis, mainly including the following three points:
1. The temperature of the plating solution is too high, and the plating solution is partially dried on the workpiece after it is out of the bath. Especially for the workpiece on the hanger, the coating often turns brown.During the production process, the temperature of the plating solution shall be strictly controlled below 40 ℃, and the workpiece shall be cleaned quickly after being out of the bath.
2. The workpiece shall be shut down, powered off or in poor contact during electroplating, which may cause the coating to darken.During production, the maintenance of conductive rod and other contacts shall be strengthened to ensure good conductivity during electroplating.
3. The workpiece is not cleaned timely or is not cleaned thoroughly after the acid copper plating.The workpiece shall be cleaned in time after leaving the plating tank to prevent the workpiece from being parked in the tank or exposed to the air for a long time.In addition, regular replacement of cleaning water shall be strengthened to ensure that the workpiece surface is cleaned.
Therefore, when we use acid copper plating brightener, when the surface of the workpiece becomes dark or brown after it leaves the groove, we should check the above three points in time to solve the problem as soon as possible and reduce the loss caused by the failure.If you are interested in acid copper plating brightener, please contact the Bigolly customer service to obtain free samples and detailed technical information!
If you want to know more about copper plating,you can click to view "Common problem".