Electrolytic polishing

Electrolytic polishing is a process in surface technology that is used to polish metallic surfaces and give them a shiny, appealing look. This process is based on electrochemical principles and is often used when processing metal workpieces, especially precious metals such as gold or silver.

In electrolytic polishing, the workpieces to be treated are immersed in an electrolyte solution as anodes. The cathode is often made of the same metal as the workpiece or a similar material. When an electrical voltage is applied, an electrochemical reaction takes place in which metal ions are transferred from the surface of the workpiece into the electrolyte solution. These ions are reduced back to metallic material at the cathode and are deposited on the surface of the workpiece.

During this process, irregularities, scratches and oxide layers are removed from the surface, resulting in a smooth, shiny surface. Electrolytic polishing allows precise control over the degree of surface treatment and is used in jewelry manufacturing, watchmaking and the production of optical and electronic components. It not only helps to improve the aesthetic properties, but can also improve the corrosion resistance and electrical conductivity of the processed metal.