Zinc nickel plating is a way of protecting metal by adding a thin coating made from zinc and nickel. The nickel part is usually around 12-16% and this helps make the coating much stronger than normal zinc.
How does Zinc Nickel Plating Work?
The electroplating process uses electricity and a liquid bath. A metal part is placed into a zinc and nickel solution and when an electric current is put through it, the metals stick to the surface and form a smooth coating.
Why people use it
The main reason for zinc nickel plating is corrosion protection. The coating is an extra layer so it will wear away first instead of the metal underneath. This will help the parts last much longer in difficult working environments. A zinc nickel plating, such as the examples seen here, https://www.poeton.co.uk/surface-treatments/plating/zinc-nickel-plating/, can protect metals much better than just standard zinc finishes.
Safer Than Other Processes
It’s also seen as a better option than cadmium plating, which is a more harmful process. Zinc nickel coatings can give the same protection without the same health risks, which is why many industries are changing to this process.
Where it’s used
You’ll often find this coating used in the vehicle and aircraft industries. It’s applied to parts like bolts, fuel systems and brake components.
Zinc nickel plating is a simple way to protect metal that works well. It lasts longer, performs better than basic coatings and it is safer for the environment, which is why it’s becoming a more common choice.