Zinkbeläggning

Zinkbeläggning refers to the application of a zinc coating to a metal surface, typically steel, to provide corrosion protection. This process is also known as galvanizing. The most common method is hot-dip galvanizing, where the steel is immersed in a bath of molten zinc. The molten zinc forms a metallurgical bond with the steel, creating a barrier that prevents rust. Even if the coating is scratched, the zinc will continue to protect the steel through a sacrificial galvanic action, corroding preferentially to the steel.

Electroplating is another method used for zinc coating, where zinc is deposited onto the steel using an electric current. This method is often used for smaller parts or when a more aesthetically pleasing finish is desired. Zinc coatings can also be applied through processes like sherardizing (heat treatment in zinc powder) or zinc spraying.

The primary benefit of zinkbeläggning is its excellent corrosion resistance, significantly extending the lifespan of steel structures and components. It is widely used in construction, automotive manufacturing, and for everyday items like fasteners and wire. The thickness and uniformity of the zinc layer influence its protective properties and durability. Regular inspection and maintenance can further enhance the longevity of zinkbelagda products.