Basic knowledge of electroplating

Electroplating is an electrolytic process. The metal sheet that provides the coating metal acts like an anode. The electrolyte is usually an ionic solution coated with metal. The object to be plated acts like a cathode. After a voltage is input between the anode and the cathode, it attracts the metal in the electrolyte. The ions swim to the cathode and are plated on it after reduction. At the same time, the anode metal is re-dissolved, providing more metal ions in the electrolyte. In some cases, insoluble anodes are used, and a new group of electrolyte needs to be added during electroplating to supplement the plated metal ions. (Guide: How to detect the hardness of heat treated workpieces)

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

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