In the production process of using electroless nickel plating solution, the addition of solution should be standardized.If the adding method is not accurate, which is likely to lead to instability of the plating solution, what should be paid attention to when adding the solution?
Bigolly Technology has analyzed the characteristics of electroless nickel plating solution Ni-809 based on field experience and the product, and the following four points should be paid attention to when adding the solution:
1. Electroless nickel plating solution cannot be added too quickly.If the hypophosphite is added too quickly, added too quickly or not completely dissolved in the bath, the local hypophosphite concentration in the bath will be too high, which will generate nickel phosphite precipitation, which will accelerate the spontaneous decomposition of the bath.
2. Improper adjustment of bath pH value.If the plating solution is added too quickly or too much with high concentration alkali solution, the local pH value of the plating solution will be too high, which is easy to produce nickel hydroxide precipitation and produce many particles on the surface of the workpiece.
3. The order of liquid medicine supplement is improper.Some customers use liquid medicine with pH regulator. If pH regulator is added when nickel salt is just added when preparing the plating solution, the plating solution will produce nickel hydroxide and precipitate, and nickel particles will precipitate.Although the bath will become clear after the complexing agent is added, a small amount of sediment still exists, which affects the service life of the bath.
4. When the liquid medicine is added, the plating solution shall be fully stirred to completely dissolve all components in the plating solution.If the stirring is not sufficient, nickel compounds that are difficult to find by the naked eye will be produced, thus affecting the service life of the plating solution.
Therefore, we should pay attention to the above four points when using electroless nickel plating solution to maintain good stability of the plating solution, so as to ensure the service life of the plating solution and the coating quality of the workpiece.If you are interested in the electroless nickel plating solution, please contact the Bigolly customer service for free samples and detailed technical information!
If you want to know more about electroless nickel plating, you can click to view "Electroplating encyclopedia".
