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In the coating selection of neodymium magnets, most customers choose nickel and zinc. Today, I will talk about the nickel coating of neodymium magnets separately, and introduce its advantages and disadvantages.
Advantages of nickel coating;
The advantages of nickel-plated magnets (currently using nickel-copper-nickel) are that the coating is relatively wear-resistant, bright in appearance, good in gloss, excellent in electrical conductivity, and resistant to salt spray 48H. After plating a layer of nickel, according to the requirements of the coating, it can also be Gold plating, silver, tin, chrome substitute, imitation gold, black nickel.
Disadvantages of nickel coating on magnets;
Single-layer nickel and some glues will lose the coating when they are used for bonding. At present, when NdFeB magnetic materials are nickel-plated, they basically use a multi-layer plating method, that is, Ni-Cu-Ni, which reduces the porosity of the coating. It can also make the corrosion resistance of the coating stronger. The price of nickel plating is higher than that of zinc plating, and the process is slightly more complicated.
The above is the introduction of the advantages and disadvantages of the neodymium magnet nickel coating. You can choose the appropriate coating according to your own application. If you do not understand, please contact our company to serve you!
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Nickel-coated neodymium magnet sample case;
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