Galvaanisoinnin

Galvaanisoinnin, also known as electroplating or electrodeposition, is an electrochemical process used to coat a metal object with a thin layer of another metal. This is achieved by immersing the object to be plated (the cathode) and a piece of the plating metal (the anode) in an electrolytic solution containing ions of the plating metal. When an electric current is passed through the solution, metal ions from the anode are dissolved and deposited onto the cathode, forming a uniform and adherent coating.

The primary purpose of galvaanisoinnin is to improve the properties of the base object. This can include enhancing its corrosion resistance, increasing its hardness, improving its electrical conductivity, or providing a decorative finish. For example, steel objects are often galvanized (coated with zinc) to prevent rust. Gold or silver plating is commonly used for decorative purposes on jewelry and tableware. Copper plating is frequently used as an underlayer for other plating processes or to improve electrical conductivity.

The effectiveness and quality of the galvaanisoinnin process depend on several factors, including the type of plating metal and electrolyte used, the current density, the temperature of the solution, and the cleanliness of the object being plated. Proper preparation of the surface, including degreasing and pickling, is crucial to ensure good adhesion of the plated layer. The thickness of the deposited metal can be controlled by adjusting the time the object remains in the electrolytic bath and the current applied.