发明公开
EP2892058A1 FERRITE CALCINED BODY, METHOD FOR PRODUCING FERRITE SINTERED MAGNET, AND FERRITE SINTERED MAGNET
审中-公开
KALZINIERTERFERRITKÖRPER，VERFAHREN ZUR HERSTELLUNG EINES FERRIT-SINTERMAGNETS UND FERRIT-SINTERMAGNET
- 专利标题： FERRITE CALCINED BODY, METHOD FOR PRODUCING FERRITE SINTERED MAGNET, AND FERRITE SINTERED MAGNET
- 专利标题（中）： KALZINIERTERFERRITKÖRPER，VERFAHREN ZUR HERSTELLUNG EINES FERRIT-SINTERMAGNETS UND FERRIT-SINTERMAGNET
-
申请号： EP13834048.4申请日： 2013-08-08
-
公开(公告)号： EP2892058A1公开(公告)日： 2015-07-08
- 发明人: ODA, Etsushi , IWASAKI, Hiroshi
- 申请人： Hitachi Metals, Ltd.
- 申请人地址： 2-1 Shibaura 1-chome Minato-ku Tokyo 105-8614 JP
- 专利权人： Hitachi Metals, Ltd.
- 当前专利权人： Hitachi Metals, Ltd.
- 当前专利权人地址： 2-1 Shibaura 1-chome Minato-ku Tokyo 105-8614 JP
- 代理机构： Diehl & Partner GbR
- 优先权： JP2012191216 20120831
- 国际公布： WO2014034401 20140306
- 主分类号： H01F1/11
- IPC分类号： H01F1/11 ; C04B35/26 ; C04B35/32 ; C04B35/40 ; H01F41/02
摘要：
A method comprising the steps of mixing raw material powders to a composition comprising metal elements of Ca, La, Sr, Ba, Fe and Co, whose atomic ratios are represented by the general formula of Ca 1-x-y La x (Sr y' Ba 1-y' ) y Fe 2n-z Co z , wherein 1-x-y, x and y are values in a region defined by a coordinate a: (0.470, 0.297, 0.233), a coordinate b: (0.300, 0.392, 0.308), a coordinate c: (0.300, 0.300, 0.400), a coordinate d: (0.400, 0.200, 0.400) and a coordinate e: (0.470, 0.200, 0.330) in a ternary diagram of x, y, and 1-x-y; y' and z, and n representing a molar ratio meet 0.5 ≤ y' ≤ 1, 0.2 ≤ z 2 being added to the raw material powder mixture, the calcined body or the calcined powder; and 0-2% by mass (as CaO) of CaCO 3 being added to the calcined body or the calcined powder.
公开/授权文献
信息查询
