As a very important modern processing technology, electroplating technology is not only the means of metal surface protection and decorative processing, but also the advantages that can be given to metal or non metal other functions.
According to incomplete statistics, more than 60 kinds of industrial coatings have been obtained, of which there are more than 20 single metal coatings, almost all of the common metals or rare precious metals. There are more than 40 kinds of alloy coatings, but the alloys in the study reach more than 240. Moreover, according to the actual production situation, different plating treatments have been developed.
The following several common electroplating processing methods are introduced.
Electroplating is the process of plating a thin layer of other metal or alloy on the surface of some metals by electrolysis. It is the use of electrolysis to make metal or other materials on the surface attached to a layer of metal film to protect, decorate and even give special functions.
Plating is divided into hanging plating, barrel plating, continuous plating and brush plating, etc., mainly related to the size and volume of the parts to be plated.
Suitable objects for hanging plating, barrel plating, continuous plating and brush plating
(1) hanging plating is workpiece clamping on the rack, suitable for large parts, each batch of products that can be plated, and the plating thickness is more than 10 m. Such as the bumper of a car, the handlebar of a bicycle, etc. The hanging plating production line can be divided into manual line and automatic line.
(2) continuous plating, in a simple way is an uninterrupted electroplating of an object, through different electroplating grooves to complete a complete set of electroplating processes, suitable for batch production of wire and strip.
(3) brush plating is an electrode or brush that is connected to the anode with a same anode and can provide the electrolyte needed for electroplating. The method of selecting electroplating on the workpiece as the cathode is applied to the local plating or repair.
(4) roll plating is usually suitable for small parts. Rolling plating is called cylinder electroplating in strict sense. He is a kind of electroplating process that puts a certain number of small parts in a special roller, and in a rolling state, a kind of metal or alloy coating is deposited on the surface of the part, so as to achieve the surface protection and various functional purposes. According to the different use of rollers, the common barrel plating methods in electroplating production are divided into three categories: horizontal barrel plating, inclined roll plating and vibrating barrel plating.
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