Nickel plating is used to improve corrosion resistance, wear protection, and component lifespan. However, obtaining a high-quality coating depends on more than applying the nickel layer. Careful preparation, equipment, and process control can make a significant difference to the final result.
Use Continuous Filtration
Constant filtration is crucial to remove all the insoluble material in order to avoid surface roughness or coating defects. The filtration in the coating application process is one of the major criteria to achieve good coating properties and ensure long-term reliability.
Select the Correct Tank
For electroless nickel plating, a tank is required to hold the plating bath. Stainless Steel and polypropylene are two of the more common materials used as they have good chemical resistance. Of these two materials, polypropylene is preferred as it does not allow unwanted deposits to form on the surface of the tank.
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Prepare Components Properly
Successful plating begins with preparation of the parts being coated. Components should be chemically cleaned to remove oils, dirt, and surface contaminants. In some cases, mechanical finishing processes such as abrasive blasting may be required to improve the surface condition before plating begins.
Maintain Water Purity
The quality of the water that is added to the plating bath can affect the final coating. Contaminated water can introduce metal ions, particulates and other contaminants into the bath. Using high quality clean water, that has been purified, if necessary, is crucial to achieving consistent and even coatings on all components processed.
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