Surface coating of spring thimble

　　Spring thimble, namely pogo pin, refers to a high-precision RF connector. Its function is to connect current or data signals. Here we will explain the surface coating technology of the spring thimble.

　　What is electroplating process?

　　Electroplating process refers to the whole process of inlaying a layer of other metal materials or aluminum alloy on the surface of some metals by using the electrolysis principle. It is a processing technology that uses the effect of electrolysis to make the surface layer of metal materials or other raw materials adhere to a layer of ceramic film, so as to prevent metal materials from air oxidation (such as rusting), and improve the wear resistance, conductivity, reflectance and resistance Corrosion (copper sulfate, etc.) and improve the beautiful and elegant function.

　　The common surface coating types of spring thimble are: electroplating, nickel plating, gold plating, stainless steel, hot dip galvanizing, barrel plating, etc.; different electroplating materials can consider different application requirements, just as the surface plating is usually used to solve the problem of higher current requirements. As we all know, the conductivity of gold at room temperature can be the best metal material, followed by gold plating; in addition, some commodities will always have contact with the skin (such as intelligent sports bracelet, wireless Bluetooth headset), but also must prevent sweat erosion, not very sensitive to the skin and other special requirements, which requires higher requirements for electroplating process layer. In this way, the production cost of pogo pin RF connector will be higher.

　　Some commodities will choose to use basic electroplating materials such as nickel plating, gold plating, stainless steel, hot galvanizing, etc. the volume of the products is usually large, the current requirement is not particularly high, and the cost is relatively low, so this kind of raw materials are usually selected.

　　Finally, for plating, the raw material for the production and processing of pogo pin is usually red copper, which is mainly due to its good conductivity and suitable production and processing strength. And there are some unique products using stainless steel plate among the key production and processing raw materials.

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