NdFeB magnet plating solution is important to solve the magnet distinctive office environment. For example: motor magnet, electromagnetic iron remover core office environment are more humid, thus must be surface plating solution. At present, the important plating specialties of NdFeB magnets are: hot dip galvanizing, zinc plating, nickel plating, black nickel plating, nickel-copper-nickel plating, gold plating, gold plating, epoxy resin glue plating.
The plating solution on the surface of NdFeB magnet, according to the applicability of the machine and equipment characteristics and storage often on the different plating production and manufacturing, the more common plating production process is hot dip galvanizing and nickel plating. The surface color of each plating layer of NdFeB magnet is different. The advantages and disadvantages of various plating layers of NdFeB magnets.
The following are the common plating solutions for NdFeB magnets：
NdFeB magnet hot dip galvanized: NdFeB magnet surface looks silvery white, can do 12-48 hours anti-corrosion, can be used in some strong glue bonding, if the plating is good, it can be stored for two to five years.
NdFeB magnet black zinc plating: NdFeB magnet surface treatment is black gray according to customer's requirement, the key to plating process is to add a layer of black gray protective film on the cornerstone of hot dip galvanizing according to chemical treatment, this film can also give full play to the maintenance of machinery and equipment, enhance the corrosion resistance and oxidation time. However, the surface can be easily scratched and the safety protection is missing.
NdFeB magnet nickel plating: NdFeB magnet will look like stainless steel plate brightness, the surface can not be oxidized in the air, and the appearance is good, the gloss is very good. The disadvantage is that it can't be used with some strong glue, that will make the plating fall down and speed up the oxidation, nowadays, the current market mostly see nickel-copper-nickel, this kind of plating way to do 120-200 hours anti-corrosion.
NdFeB magnet gold plating: mostly used for magnetic decorations, magnetic jewelry is mostly orange, silver and white. The surface of gold plated magnets looks like gold, which is very beautiful and used in jewelry industry.
Epoxy resin plating: NdFeB magnet is plated with nickel and then add a layer of resin paint on the outside, its bigger characteristic is that it can improve the salt spray test time.
Post time: Mar-17-2022