ndfeb 3

The sintered neodymium iron boron permanent magnet material adopts a powder metallurgy process. The melted alloy is made into powder and pressed into a pressed embryo in a magnetic field. The pressed embryo is sintered in an inert gas or vacuum to achieve densification. Sintered neodymium iron boron permanent magnet materials have excellent magnetic properties and are widely used in fields such as electronics, power machinery, medical equipment, toys, packaging, hardware machinery, aerospace, etc. Common ones include permanent magnet motors, speakers, magnetic separators, computer disk drives, magnetic resonance imaging equipment instruments, etc. The maximum working temperature can reach 250 ℃; The mechanical performance is also quite good, suitable for different processing methods such as grinding, wire cutting, and drilling; Due to poor corrosion resistance, different coating treatments (such as Zn, Ni, Au, Epoxy, etc.) must be applied to the surface according to different requirements.