Zinkování

Zinkování is a common industrial process used to protect steel and iron from corrosion. It involves coating the metal surface with a layer of zinc. The most prevalent method is hot-dip galvanizing, where the steel or iron is immersed in a bath of molten zinc. This process creates a strong metallurgical bond between the zinc and the base metal, offering excellent protection. Another method is electrogalvanizing, which uses an electrochemical process to deposit a thinner layer of zinc.

The primary benefit of zinkování is its sacrificial protection. Zinc is more reactive than iron or steel, meaning it will corrode preferentially, sacrificing itself to protect the underlying metal. This is particularly effective in preventing rust. Even if the zinc coating is scratched or damaged, it will continue to protect the exposed steel through this galvanic action.

Zinkování is widely used in various applications, including construction (structural steel, rebar), automotive parts, fencing, roofing, and household appliances. The thickness and quality of the zinc coating determine the lifespan and effectiveness of the protection. The process itself is relatively straightforward, making it a cost-effective solution for extending the life of metal products. Regular inspection and maintenance can further enhance the longevity provided by zinkování.