Nickel-plated neodymium iron boron magnet is a surface-modified high-performance sintered NdFeB permanent magnet, which takes high-strength NdFeB magnetic blank as the base material, and adopts electroplating process to form a uniform and dense nickel protective layer on the surface. NdFeB magnet itself has high magnetic energy product and strong magnetic force, but the base material is easy to oxidize and corrode in the air, while the nickel-plating process perfectly solves the defects of poor corrosion resistance and easy rusting of bare NdFeB magnets. The conventional nickel-plating process is divided into single nickel plating, nickel-copper-nickel triple plating, etc. The triple plating structure of bottom nickel, middle copper and surface nickel makes the coating more compact, with stronger adhesion and better protective effect, which is the most mainstream surface treatment process for NdFeB magnets in industrial applications.

In terms of performance characteristics, nickel-plated neodymium iron boron magnets retain all the excellent magnetic properties of original NdFeB magnets. The magnetic grade covers N35-N55, M, H, SH and other high and low temperature resistant grades, with magnetic energy product up to 55 MGOe, super strong magnetic adsorption force, stable magnetic field and long-term non-attenuation magnetism. The nickel plating layer has uniform thickness, smooth and bright surface, no pores, no peeling and no blistering, which effectively isolates the contact between the magnet base material and air, moisture and corrosive media, greatly improving the anti-oxidation, anti-rust and anti-corrosion ability of the magnet. Compared with zinc-plated NdFeB magnets, nickel-plated magnets have higher surface hardness, better wear resistance and scratch resistance, and are not easy to produce surface scratches and wear during assembly and use, maintaining a long-term smooth and beautiful appearance.

The dimensional accuracy and assembly performance of nickel-plated neodymium iron boron magnets are excellent. The electroplating coating has thin and uniform thickness, which will not affect the overall dimensional tolerance of the magnet. After precision grinding and electroplating, the product size error is controlled within the industrial high-precision range, which meets the strict assembly requirements of precision electronic equipment and industrial machinery. The surface of the nickel-plated layer has good flatness and smoothness, with small friction coefficient, which is convenient for sliding assembly and mechanical matching of components. In addition, the nickel-plated surface has good solderability and adhesiveness, which can be directly welded and glued with other components, facilitating the secondary processing and assembly of products. The product has stable environmental adaptability, can work stably in conventional indoor and outdoor environments, and has a service life more than 3 times that of bare NdFeB magnets and 1.5 times that of zinc-plated NdFeB magnets.

Nickel-plated neodymium iron boron magnets have extremely wide application range and are the most widely used high-strength magnet products in the industry. In the consumer electronics industry, they are used for magnetic components of mobile phones, tablets, earphones, smart watches and wearable devices, with beautiful appearance and stable performance, meeting the high appearance and high reliability requirements of electronic products. In the motor and automation industry, they serve as core magnetic parts of brushless motors, stepping motors, servo motors and automated sensor equipment, ensuring long-term stable operation of motors and sensors. In the mechanical hardware field, they are applied to magnetic fixing parts, magnetic tool holders, magnetic positioning components and mechanical adsorption devices, with wear resistance and corrosion resistance suitable for long-term industrial use. In the packaging and gift industry, they are used for high-grade gift box magnetic closures, cosmetic box magnetic accessories and handicraft magnetic parts, with bright surface and high grade. In addition, they are also widely used in automobile electronic systems, medical equipment, security monitoring equipment and daily hardware products. With the advantages of high magnetism, beautiful appearance, strong durability and high cost performance, nickel-plated NdFeB magnets have become the universal preferred magnetic material for most industrial and civilian high-strength magnetic application scenarios.