Electroless nickel plating is a cost effective and high quality solution to protecting metals from corrosion and increasing their life span. Nickel coatings have a variety of fantastic properties from wear resistance to hardness, making it a popular choice of metal plating for the defence, automotive, aerospace and healthcare industries.
However, electroless nickel plating is quite a complicated process that involves precision and careful execution. As experts in the process, we’ve put together a few top tips that will ensure that the best results are achieved during the process of nickel plating.
Continuous Monitoring of the Plating Solution
For the electroless nickel plating process to be effective, the chemicals in the plating bath need to be of a precise balance. This requires continuous monitoring of the plating solution to ensure that the chemicals a replenished sufficiently.
Filtration of the Plating Bath
In order to remove insoluble materials that can cause substrate roughness, the plating bath needs to be filtered continuously.
Correct Preparation of Parts
Components should be chemically pre-treated and rinsed thoroughly before the plating process to ensure that any surface contaminants are removed. There are other mechanical finishing techniques that can also be used to prepare the surface of the part for electroless nickel plating and improve the condition of the service, for example shot blasting.
Plating Bath Temperature Control
The temperature of the nickel plating bath needs to be monitored closely throughout the plating process. If the temperature is too low, it will have the effect of lengthening the plating process and in extreme cases may prevent the metal coating from depositing properly. If the temperature is too high on the other hand, the speed of the deposition will be speeded up beyond a level that is optimum for quality, and may result in the substrate blistering.
Bath Water Purity
Any impurities in the water used for the EN bath can result in unacceptable plating results. The water should be free of metal ions, particulates or other foreign matter.
UK Electroless Nickel Plating Service
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