Elektrolissipinnointi

Elektrolissipinnointi, also known as electroplating, is an electrochemical process used to deposit a thin layer of metal onto a conductive substrate. This is achieved by immersing the object to be plated, acting as the cathode, and a piece of the plating metal, acting as the anode, into an electrolyte solution containing ions of the plating metal. A direct current is then passed through the solution. The electric current causes the metal ions in the electrolyte to migrate to the cathode (the object) and deposit onto its surface, forming a uniform coating.

The primary purposes of elektrolissipinnointi include enhancing the appearance of an object, improving its corrosion resistance, increasing its hardness, or providing electrical conductivity. Common plating metals include gold, silver, chromium, nickel, copper, and zinc. The specific electrolyte solution and current density are carefully controlled to achieve the desired thickness and quality of the plated layer. The process is widely used in various industries, such as automotive, electronics, jewelry, and aerospace, for decorative and functional applications. Proper preparation of the substrate surface, including cleaning and degreasing, is crucial for optimal adhesion of the electroplated layer.