Zinc nickel plating is an advanced coating technology that provides superior corrosion resistance compared to conventional zinc plating. This high-performance alloy is widely used across multiple industries, offering enhanced durability and protection in harsh environments.
The Benefits of Zinc Nickel Plating
Zinc nickel plating is composed of approximately 10-15% nickel, with the remainder being zinc. This combination significantly slows down the corrosion process, making it a preferred choice for components exposed to moisture, chemicals and extreme temperatures. Compared to standard zinc coatings, zinc nickel plating can offer up to ten times more protection, making it a valuable solution for industries requiring long-term durability. This example shows further information on the process www.swmf.co.uk/surface-coatings/zinc-nickel-alloy-plating/.
One of the key advantages of this plating is its versatility. It is commonly used in automotive, aerospace, heavy machinery and electrical applications. For example, it is frequently applied to fasteners, hydraulic components and transmission parts to extend their lifespan and performance. Additionally, as an environmentally friendly alternative, zinc nickel plating has replaced cadmium plating in many industries due to regulatory restrictions on hazardous materials.
The Plating Process and Considerations
The zinc nickel plating process involves electrodeposition, where an electrical current is used to apply the alloy coating onto a metal surface. Following this, a protective chromate conversion coating is added to enhance resistance against white rust and oxidation. There are two main types of conversion coatings: hexavalent and trivalent. While hexavalent coatings offer superior corrosion protection, their use has declined due to environmental regulations. Trivalent coatings, which comply with the Restriction of Hazardous Substances directive, have become the industry standard for many applications.
Industries that rely on zinc nickel plating must also consider factors such as coating thickness, adhesion properties and exposure conditions. According to the Nickel Institute, this alloy coating is particularly beneficial for components exposed to extreme environments, such as those found in the automotive sector.
Zinc nickel plating continues to be a preferred solution for industries requiring corrosion-resistant coatings. Its durability, versatility and environmental benefits make it an ideal choice for protecting metal components in demanding conditions, ensuring long-term performance.
