The reason why the plating solution is cloudy and produces a gritty coating when produced with nickel plating additives

The reason why the plating solution is cloudy and produces a gritty coating when produced with nickel plating additives

Tue Sep 06 10:01:47 CST 2022

    When we use nickel plating additives for production, sometimes the plating solution is still turbid after repeated filtration, and a frosted coating will appear on the workpiece. What is the reason?

    Bigolly Technology made an analysis based on the field experience and the characteristics of the nickel plating additive Ni-301. The turbidity of the plating solution after repeated filtration is caused by the presence of colloidal ions in the plating solution. The pH value of the plating solution can be adjusted to about 4.6, using activated carbon It can be solved by processing the plating solution.The reasons for the frosted coating are as follows:

    1. The coating is a frosted coating, and the protrusions can generally be felt by hand, which is caused by the floating of fine particles in the plating solution.These small particles may be excess boric acid, dust floating in the air, or anode sludge.These can be removed by filtration through the bath circulation.

    2. The coating is a frosted coating, and the concave ones cannot be felt by hand, which is what we generally call pits.This may be due to the high content of iron impurities, organic impurities or insufficient wetting agent in the plating solution.At this time, impurity removal treatment can be carried out by adding wetting agent or plating solution.

    In this way, when we use nickel plating additives to produce, if the plating solution is still turbid after repeated filtration, we can solve the cause of the failure through the above two points and reduce the loss caused by the failure.If you are interested in nickel plating additives, please contact Bigolly customer service, you can get free samples and detailed technical information!

    If you want to know more about nickel plating, you can click to view "Electroplating encyclopedia".