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电力汽车驱动马达用的大型环状Ｎｄ－Ｆｅ－Ｂ磁体采用美国ＧＭ公司快淬法生产的ＭＱ３Ｎｄ－Ｆｅ－Ｂ永磁粉末，将其冷压制品表面涂以润滑剂后在氦气氛中加热到８００℃，经热压加工，再在热压制件表面重新涂以润滑剂，再于氮气氛中加热至８００Ｃ后加以反向挤压加工。这...
The large annular Nd-Fe-B magnet used in electric vehicle drive motor adopts the MQ3Nd-Fe-B permanent magnet powder produced by GM company in the United States. The surface of the cold-pressed product is coated with a lubricant and heated in helium to 800 ℃, the hot pressing processing, and then re-coated parts of the surface of the hot pressing lubricants, and then heated to 800C in a nitrogen atmosphere to reverse extrusion processing. This...