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Electroplating plant in the face of nickel plating layer appears rough fault, often first from the nickel plating brightener to start troubleshooting, but in the actual production, the cause of roughness is a variety of reasons, such as hangers, sanding copper rods, treatment of the plating solution is not filtered thoroughly, and so on. This issue of the article we will analyze.
In the use of electrolytic degreasing powder, the electrolytic degreasing when the workpiece is placed at the anode is called anodic degreasing. Its advantages and disadvantages are just the opposite of cathodic degreasing.
We use decorative chrome additives to formulate the tank solution after the film, the better chrome plating solution should have 7~8cm bright range of plating, no burnt ash in the high end, and no yellow film or color film in the low area. But in the actual production, there are always some failures, what are the causes of such failures? And how to adjust?
In the previous article, we talked about two reasons why mechanical impurities can cause rough plating when using copper pyrophosphate brighteners, in addition to the other 2 reasons why mechanical impurities can also occur. These are the introduction of anode sludge and external fallout.
Blackening of the plated layer in the barrel tin plating process is a complex problem that involves a number of factors, including the composition of the plating solution, the process parameters and the post-treatment process. This phenomenon is usually attributed to the following 2 aspects:
When using copper pyrophosphate brighteners, various insoluble or undissolved solid particles in the plating solution are called mechanical impurities. When it settles on the surface of the workpiece and is enclosed in the plating layer, the plating layer is obviously rough.
