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各向异性稀土永磁材料及其磁粉和磁体的制造方法

2020-04-14 来源:保捱科技网
维普资讯 http://www.cqvip.com

工业进展),2000,17(12):43~45 [41 Hhang Yongguang(黄永光).美国材料与试验协会的钛标 准[J1.Rare Metals Letters(稀有金属快报),2007,26(10): [3]Huang Yongguang(黄永光).我国钛及钛合金标准现状思考 『J】.w orJd Standardization&QuMi ̄Management(世界标准 46~47 化与质量管理),2004(6):32~34 Development and Standardizati0n of Titanium and Titanium Alloy Designations in China Huang Yongguang (BaoTi Ggroup Co.,Ltd.,Ba@721014,China) Abstract:The paper reviewed the development and standardization process of Chinese titanium and titanium alloy designations, expatiated main changes of titanium designation and composition national standard in 2 1 century including development of designation and composition close to international standard,and compared with the designation of international titanium and titanium ahoy,it is suggested that the Chinese titanium designations shuld be improved in the futher. Keywords:titanium and titanium alloy;designation;composition;standardization Biography:Huang Yongguang,Senior Engineer,Technology Department,BaoTi Group Co.,Ltd.,Baoji 721014,P.R.China, Tel:0086-917—3382289,E-mail:hyg57@163.com 专利名称:各向异性稀土永磁材料及其磁粉和磁体的制造 方法 专利申请号:200610113209.4 申请日:2006—09—19 公开号:CN19371 10 公开日:2007—03—28 专利申请人:北京大学 本发明提供了一种具有各向异性的稀土永磁材料,具 有Th2Zn 型晶体结构,以原子百分比所表示的成分为 (sm )xFe 。。一 J2,式中:R是Pr或Pr与其它稀土元 素的组合,0.01≤ ≤0.30;M选自Si,Ti,V,Cr,Mn, co,Nj,cu,Zn,Nb,Mo,A1,Zr;f是单独N或N与 C的组合;7≤x≤12,0.01≤y≤8.0,6≤z≤14.4。利用特 定的技术制成平均粒度为1-3¨m且呈片状的单晶颗粒磁 粉,该磁粉不仅具有在外磁场作用下取向的磁晶各向异 性,而且具有压延各向异性和应力各向异性。根据这3种 各向异性提供了制备高性能各向异性压延柔性橡胶磁体的 方法 

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