In the production process of using nickel plating additives, sometimes the workpiece coating appears rough and burrs.Even if the plating solution is treated with impurities, this will happen again soon, which is very troublesome.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 anode plate is easy to be passivated in the nickel plating solution, so it is necessary to add an anode activator in the plating solution to ensure the normal dissolution of the anode.
The common anode activator is nickel chloride.In the process of nickel plating, chloride ions are adsorbed by the characteristics of the nickel anode to drive away oxygen hydroxyl ions and other heterogeneous particles that can passivate the surface of the nickel anode, thus ensuring the normal dissolution of the nickel anode.At the same time, nickel chloride can also improve the conductivity and cathode dispersion of the bath.
It should be noted that when the chloride content in the plating solution is too high, the anode will dissolve rapidly, which sometimes causes nickel metal particles to be separated from the anode and enter the plating solution, deposited on the tank bottom, or adsorbed on the cathode surface.When the particles and nickel are deposited together in the coating, the coating will accumulate and appear rough and burrs.If the chloride content in the plating solution is too small, the anode plate is prone to passivation, resulting in poor quality of the nickel coating.
Therefore, in the process of using nickel plating additives, we should pay attention to analyzing and adjusting the concentration of each component of the plating solution within the process range, circulating and filtering the plating solution, and using the anode bag reasonably, so that the anode will not bring particles into the plating solution during normal dissolution, so as to avoid 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 "Common problem".