Basic knowledge of electroplating

Release time:

2023-02-06

Plating is an electrolytic process in which the metal sheet that provides the coating metal acts like an anode, the electrolyte is usually an ionic solution plated with the metal, and the plating object acts like a cathode. After the voltage is input between the anode and the cathode, the metal ions in the electrolyte are attracted to the cathode and plated on it after reduction. At the same time the metal of the anode redissolves, providing more metal ions in the electrolyte. In some cases, insoluble anodes are used, and a new group of electrolyte is added to supplement the plating metal ions.

Generally refers to the electrolytic reduction reaction in the object plating a layer of film. Its currently used types are: general electroplating methods (electroplating), composite electroplating (composite plating), alloy electroplating (alloy plating), local electroplating (selected plating), pen electroplating (pen plating) and so on. Because the plating surface has a protective and decorative effect; it is widely used. There are also a small number of electroplates that provide other characteristics, such as high conductivity, high light reflectivity, or reduced toxicity. The most commonly used electroplated metals are nickel, chromium, tin, copper, silver, and gold. Plating technology currently can be plated about 70 kinds of metal, alloy plating about 15 kinds.

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