工艺技术对钕铁硼磁体性能影响的研究  

Effect of technique on magnetic performance of NdFeB magnet

作　　者：伍尚南 肖方明[2] 黄莉丽[2] 

机构地区：[1]肇庆三环京粤磁材有限公司,广东肇庆526020 [2]广州有色金属研究院稀有金属研究所,广东广州510650

出　　处：《材料研究与应用》2007年第3期199-202,共4页Materials Research and Application

摘　　要：对采用添加元素、氢破和烧结工艺制备烧结钕铁硼永磁体进行了研究,结果表明,添加Dy和Cu可以提高磁体的矫顽力,氢破工艺可以提高磁体剩磁以及改善剩磁曲线的方形度,合适的烧结温度可以提高磁体的密度和剩磁.将这三项优化组合可以提高磁体的最大磁能积.In this paper, the NdFeB permanent magnet prepared by added elememts, hydrogen demolish and sintering process is investigated. The results show that by addition of Dy and Cu element can improve the coercivity, HD technology can increased remanence and improve the square degree of remanence curve, appropriate sintering processing can enhanced the density and remanence of magnet. Combination with these technologies can obtain the best magnetic properties.

关 键 词：钕铁硼磁体 烧结工艺 氢破 添加元素 

分 类 号：TM273[一般工业技术—材料科学与工程]