Sähkögalvanoinnissa

Sähkögalvanoinnissa, commonly known as electroplating, is an electrochemical process used to deposit a thin layer of metal onto another material. 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. When an electric current is applied, metal ions from the anode are attracted to the cathode and deposit onto its surface, forming a coating.

The primary purpose of electroplating is to enhance the properties of the base material. This can include improving corrosion resistance, increasing hardness, enhancing electrical conductivity, or providing a decorative finish. Different metals can be electroplated, such as chromium, nickel, copper, zinc, and gold, each offering unique benefits. For example, zinc plating is often used for its protective qualities against rust, while gold plating is favored for its aesthetic appeal and excellent conductivity.

The electroplating process requires careful control of several parameters, including current density, temperature, and the composition of the electrolyte solution. These factors influence the thickness, adhesion, and quality of the deposited metal layer. Improper control can lead to uneven plating, poor adhesion, or a brittle coating. Despite its technical nature, electroplating is widely used in numerous industries, including automotive, electronics, jewelry, and manufacturing, due to its effectiveness in modifying surface characteristics.