cinkbevonat

Cinkbevonat, also known as zinc coating or galvanizing, is a protective layer of zinc applied to iron or steel objects to prevent corrosion. This process is commonly used for a wide range of applications, from everyday items like screws and nails to larger structures such as bridges and guardrails. The primary mechanism by which cinkbevonat protects the underlying metal is through a sacrificial anode effect. Zinc is more electrochemically active than iron, meaning it corrodes preferentially. Even if the zinc coating is scratched or damaged, exposing the steel, the zinc will continue to protect the steel by corroding instead of the iron. This electrochemical protection is a key advantage over other types of coatings.

There are several methods for applying cinkbevonat. Hot-dip galvanizing is one of the most widespread, involving immersing the steel object into a bath of molten zinc. This results in a thick, durable coating that provides excellent long-term protection. Electrogalvanizing, or electroplating, uses an electrolytic process to deposit a thinner layer of zinc onto the steel surface. This method is often used for smaller items where a smoother finish is desired. Sherardizing is another method that involves heating iron or steel parts in a rotating drum containing zinc powder, creating a diffusion coating. The choice of method depends on the size of the object, the desired thickness of the coating, and the intended application. Cinkbevonat significantly extends the lifespan of steel products exposed to environmental elements.