NdFeB magnets can be divided into bonded NdFeB magnets and sintered NdFeB magnets. Bonding is actually injection molding, and sintering is vacuum molding through high temperature heating! NdFeB magnet is the most powerful permanent magnet so far. Various shapes can be processed according to specific requirements: round, square, drilling, magnetic tile, magnetic rod, convex, trapezoid, etc.; although these advantages exist, the surface is easy to rust, so some protective surface treatment is usually required: nickel plating, zinc plating, gold plating, epoxy resin plating, etc. Ordinary Nd-Fe-B magnets are suitable for the environment temperature below 80 degrees, but there are several kinds of magnets that can withstand 200 degrees. Mainly used in electronics, electrical appliances, packaging, motor, toys, leather goods, automotive machinery, etc.

The advantages of NdFeB magnets are high cost performance and good mechanical properties; the disadvantages are low Curie temperature point, poor temperature characteristics, and easy to be powdered and corroded. Only by adjusting its chemical composition and adopting surface treatment methods can it be improved to meet the requirements of practical application. NdFeB is the third generation of rare earth permanent magnet material, which has the characteristics of small volume, light weight and strong magnetism. It is the best magnet with the best performance price ratio at present, and is known as magneto in the field of magnetism. The advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology. In the state of bare magnetic, the magnetic force can reach about 3500 Gauss.