公开(公告)号：EP2099039A1

公开(公告)日：2009-09-09

申请号：EP09153533.6

申请日：2009-02-24

申请人： Daido Steel Co.,Ltd.

发明人： Hioki, Keiko ,  Yabumi, Takao ,  Hashino, Hayato

IPC分类号： H01F1/057

CPC分类号： H01F1/0571 ,  H01F41/028

摘要： A material for magnetic anisotropic magnet, comprising (1) a Pr-T-B-Ga-based composition containing Pr: 13.0 to 15.0 atomic percent, B: 4.5 to 6.5 atomic percent, Ga: 0.1 to 0.7 atomic percent, and the balance of T and inevitable impurities, wherein T is obtained by substituting Co for Fe or a portion of Fe, (2) the material for magnetic anisotropic magnet is obtained by rapidly-cooling a molten alloy having the composition, pulverizing the ribbon obtained by the rapid-cooling, cold-forming the alloy powder obtained by the pulverizing, hot-forming the cold-formed body, and performing hot plastic working to the hot-formed body, and (3) the degree of magnetic orientation of the material for magnetic anisotropic magnet, which is defined by remanence (Br)/saturation magnetic flux density (Js), is 0.9 or more.

摘要翻译： 一种磁性各向异性磁体用材料，其特征在于，含有（1）Pr-13.0〜15.0原子％的Pr-TB-Ga类组合物，B：4.5〜6.5原子％，Ga：0.1〜0.7原子％，余量为T 和不可避免的杂质，其中T是通过用Co代替Fe或Fe的一部分获得的，（2）通过快速冷却具有该组成的熔融合金来获得用于磁性各向异性磁体的材料，粉碎通过快速冷却 冷成型由冷成型体粉碎，热成形得到的合金粉末，对热成型体进行热塑性加工，（3）磁性各向异性磁体用材料的磁性取向度， 由剩磁（Br）/饱和磁通密度（Js）定义的值为0.9以上。

公开(公告)号：EP2207186A1

公开(公告)日：2010-07-14

申请号：EP10150072.6

申请日：2010-01-05

申请人： Daido Steel Co.,Ltd.

发明人： Hioki, Keiko ,  Yabumi, Takao ,  Hashino, Hayato

IPC分类号： H01F1/057 ,  H01F41/02 ,  B22F9/00

CPC分类号： H01F1/0576 ,  B22F2998/10 ,  C22C1/0441 ,  C22C38/002 ,  C22C38/005 ,  C22C2202/02 ,  H01F41/0266 ,  B22F9/04 ,  B22F3/02 ,  B22F1/0085 ,  B22F3/14

摘要： A material for anisotropic magnet, comprising,
(1) a Pr-T-B-Ga-based composition containing Pr: 12.5 to 15.0 atomic percent, B: 4.5 to 6.5 atomic percent, Ga: 0.1 to 0.7 atomic percent, and the balance of T and inevitable impurities, wherein T is Fe or obtained by substituting Co for a portion of the Fe; and having,
(2) a degree of magnetic alignment of 0.92 or more, wherein the degree of magnetic alignment is defined by remanence (Br)/saturation magnetization (Js); and
(3) a crystal grain diameter of 1 µm or less.

摘要翻译： 1.一种各向异性磁体用材料，其特征在于，含有（1）Pr-12.5〜15.0原子％的Pr-TB-Ga类组合物，B：4.5〜6.5原子％，Ga：0.1〜0.7原子％，余量为T 和不可避免的杂质，其中T是Fe或通过用Co取代一部分Fe而获得; 并且具有（2）0.92以上的磁取向度，其中磁取向度由剩磁（Br）/饱和磁化强度（Js）定义。 和（3）1μm以下的晶粒直径。