Neodymium iron boron magnetic powder preparation method

The invention discloses a neodymium iron boron magnetic powder preparation method. The method comprises the steps that required high melt quality target materials are selected, and neodymium iron boron magnetic powder and the high melt quality target materials are separately placed in a physical vap...

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Bibliographische Detailangaben
Hauptverfasser: LI HUI, LIU XIAOYU, LU FEI, LIU SHUFENG, CHEN BEIXIN, SUN LIANGCHENG, ZHENG TIANCANG, BAI YANG, ZHANG GANG, LI JINGYA, WANG FENG, XING ZHENGMAO
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a neodymium iron boron magnetic powder preparation method. The method comprises the steps that required high melt quality target materials are selected, and neodymium iron boron magnetic powder and the high melt quality target materials are separately placed in a physical vapor deposition device; the physical vapor deposition device is started, and physical vapor deposition is used for depositing high melt quality particles on the scattered neodymium iron boron magnetic powder; the physical vapor deposition is stopped, and after the temperature of the neodymium iron boron magnetic powder is reduced to indoor temperature, the magnetic powder is taken out. According to the neodymium iron boron magnetic powder preparation method, sintering is conducted on the prepared neodymium iron boron magnetic powder to prepare neodymium iron boron magnets, the coercive force is high, and the remanence and magnetic energy product are excellent. 本发明公开了种钕铁硼磁粉的制备方法,包括:选择所需高熔质靶材,将钕铁硼磁粉和高熔质靶材分别置于物理气相沉积装置内;