In the process of using electroless nickel plating solution, sometimes the coating surface of the workpiece will peel, which will seriously affect the appearance and performance of the workpiece. What causes this phenomenon?
According to the field experience and the characteristics of the product electroless nickel plating solution Ni-809, Bigolly Technology has made an analysis, mainly including the following three points:
1. The workpiece base material is hard material.For example, the stainless steel and FPC part of the reinforcing base material are too hard, and the adhesion of the coating is poor, which is easy to peel, so pre nickel plating is required.
2. The workpiece is not completely degreased or pickled.In this way, when the workpiece is plated with chemical nickel, the adhesion of the coating is not enough, and the phenomenon of peeling will occur.Therefore, the degreasing and pickling of the pretreatment shall be thorough to ensure that the surface of the workpiece is clean before electroless nickel plating.
3. Hydrogen embrittlement.The workpiece absorbs hydrogen in the process of depositing chemical nickel layer, which makes the coating brittle.Therefore, too high nickel ion concentration, too high temperature, too high pH value or too large loading capacity should be avoided in the production process.
Therefore, we should pay attention to the above three points in the process of using electroless nickel plating solution to avoid peeling of workpiece coating and reduce the occurrence of faults.If you are interested in the electroless nickel plating solution, please contact the Bigolly customer service for free samples and detailed technical information!
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