Sintered NdFeB Magnet Coming out in early 1980s,NdFeB permanent magnetic material is now widely applied in information industry, defense industry, wind power, home appliance, instruments and apparatus, medical equipment, and magnetic instruments etc. Its main constituent is Nd2Fe14B, which has high magnetic performance. Its maximum energy density (BH)max is over 10 times as high as that of ferrite magnet; maximum working temperature up to 250 centigrade. Also, it has good mechanical behavior, which is for various processing, such as abrasive cutting, linear cutting and boring so on. While , because of bad anticorrosion, the surface of magnet need to be handled with various coating, such as Zn Ni Au Epoxy
