Cementation

Zinc dust cementation is an electroplating process based on the precipitation of zinc from an electrolyte solution to produce a zinc layer on a solid substrate. This process utilizes the redox reaction between zinc ions in the solution and a substrate that acts as a sacrificial metal.

During the cementation process, the substrate emits electrons and oxidizes itself in the process. The electrons are accepted by the zinc ions in the electrolyte solution, leading to their reduction and the precipitation of zinc on the surface of the substrate. The resulting zinc layer improves the surface properties of the substrate by giving it corrosion resistance and other desired characteristics.

The use of zinc dust in cementation offers specific advantages, as zinc has a high affinity for electrons and precipitates efficiently. This makes the process particularly effective for coating workpieces with zinc layers.

Cementation with zinc dust is used in various industrial sectors, particularly in the automotive industry and in the corrosion protection of steel parts. This technique enables the cost-effective production of zinc coatings on large workpieces or in cases where the use of other electroplating processes would be impractical. Overall, cementation with zinc dust in electroplating helps to improve the surface properties of workpieces and give them an additional protective layer against corrosion.