When it comes to choosing an electroplating option, there are usually two essential characteristics to consider. One is the ability of the electroplating layer to resist corrosion and rusting, and the second is the ability of the plating to stand up to the specific environmental conditions in the given application.
The more demanding the working parameters for the part or component, and the more corrosive or damaging the environment, the more critical it is to choose the right electroplating method. This is often not the cheapest electroplating option, but the offsetting increase in the life cycle of the part often more than makes up the slightly higher costs of production.
Zinc Nickel Electroplating
In many types of applications, zinc electroplating is a reliable, effective, and durable option. However, when higher levels of corrosion resistance are required based on industry standards or for operation-critical types of parts and components, the choice of zinc nickel alloy electroplating is the go-to option.
The addition of 12 10 15% nickel in the electroplated layer adds to the corrosion resistance of the substrate surface. It also boosts the ability to of the part to operate in higher temperatures.
In the automotive industry, zinc nickel alloy electroplating is seen as the ideal option for these reasons, as it offers high temperature performance with high levels of corrosion resistance from water, humidity, and other types of compounds and components.
Additionally, zinc nickel alloy electroplating is more resistant to damage from salt exposure. With salt used on roadways in the winter, this additional protection extends the life of exposed parts and components without the need to increase the thickness of the deposit.
It is possible to add passivate layers to this type of electroplating, but it may not be required based on the specific application and use of the part.