In the process of using nickel plating additive, the workpiece coating is prone to the phenomenon of concave points, which has a great impact on the appearance of the workpiece.What causes this phenomenon?
According to the field experience and the characteristics of the nickel plating additive Ni-301 of the product, Bigolly Technology has made an analysis and found that the nickel plating layer is prone to appear pits because the reduction potential of hydrogen ions is very close to nickel, so hydrogen is easy to attach to the nickel layer and form pits.
At this time, it is necessary to add an appropriate amount of wetting agent to the nickel plating solution.Wetting agent can reduce the surface tension of the plating solution. If hydrogen is not firmly attached to the workpiece surface, it is easy to be driven away by stirring.It should be noted that the content of wetting agent in the plating solution should not be too low, so as to solve the problem of coating pits, there will also be fogged coatings in the high current area.Taking this nickel plating wetting agent Ni-382 as an example, the content should be controlled at 1~3ml/L. When the content is 2ml/L, the effect of reducing the interfacial tension is better.
Therefore, we need to control the content of wetting agent in the process of using nickel plating additives, so as to avoid the pitting of workpiece coating and reduce the occurrence of failures.If you are interested in nickel plating additives, please contact the Bigolly customer service for free samples and detailed technical information!
If you want to know more about nickel plating,you can click to view "Electroplating encyclopedia".
