公开(公告)号：US09177705B2

公开(公告)日：2015-11-03

申请号：US14119354

申请日：2012-05-25

申请人： Tetsuya Hidaka ,  Kazuo Sato ,  Kazuya Sakamoto ,  Shinya Fujito ,  Motoaki Hosako ,  Motohisa Murata ,  Koji Mitake

发明人： Tetsuya Hidaka ,  Kazuo Sato ,  Kazuya Sakamoto ,  Shinya Fujito ,  Motoaki Hosako ,  Motohisa Murata ,  Koji Mitake

IPC分类号： H01F1/08 ,  H01F41/02 ,  C22C33/02 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  H01F1/057

CPC分类号： H01F1/086 ,  B22F2998/10 ,  C22C33/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0266 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10

摘要： A sintered rare earth magnet rotating machine and method improve temperature properties and strength having an excellent corrosion resistance. The sintered rare earth magnet includes at least a main phase composed of R2T14B (R represents at least one rare earth element of Nd, Pr or both and T represents at least one transition metal element including Fe or Fe and Co) compound and a grain boundary phase containing a higher proportion of R than the main phase, wherein the main phase includes a heavy rare earth element (one of Dy, Tb or both), at least part of main phase grains of the main phase included in the sintered rare earth magnet includes at least the following regions, low, high and intermediate concentration regions. These regions exist in order of low, high, and intermediate concentration regions, from low concentration region towards the grain boundary phase in the main phase grains.

摘要翻译： 一种烧结稀土磁体旋转机及改善耐腐蚀性的温度特性和强度的方法。 烧结稀土类磁体至少包括由R2T14B构成的主相（R表示至少一种Nd，Pr或二者的稀土元素，T表示至少一种包含Fe或Fe和Co）化合物的过渡金属元素和晶界 相中含有比主相高的R比例，其中主相包括重稀土元素（Dy，Tb或其中之一），主相的至少部分主相晶粒包括在烧结稀土磁体中 至少包括以下区域，低，高和中等浓度区域。 这些区域按照主相晶粒中低浓度区域和晶界相的低，高和中等浓度区域的顺序存在。

公开(公告)号：US20140184370A1

公开(公告)日：2014-07-03

申请号：US14119354

申请日：2012-05-25

申请人： Tetsuya Hidaka ,  Kazuo Sato ,  Kazuya Sakamoto ,  Shinya Fujito ,  Motoaki Hosako ,  Motohisa Murata ,  Koji Mitake

发明人： Tetsuya Hidaka ,  Kazuo Sato ,  Kazuya Sakamoto ,  Shinya Fujito ,  Motoaki Hosako ,  Motohisa Murata ,  Koji Mitake

IPC分类号： H01F1/08 ,  H01F41/02

CPC分类号： H01F1/086 ,  B22F2998/10 ,  C22C33/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0266 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10

摘要： A sintered rare earth magnet rotating machine and method improve temperature properties and strength having an excellent corrosion resistance. The sintered rare earth magnet includes at least a main phase composed of R2T14B (R represents at least one rare earth element of Nd, Pr or both and T represents at least one transition metal element including Fe or Fe and Co) compound and a grain boundary phase containing a higher proportion of R than the main phase, wherein the main phase includes a heavy rare earth element (one of Dy, Tb or both), at least part of main phase grains of the main phase included in the sintered rare earth magnet includes at least the following regions, low, high and intermediate concentration regions. These regions exist in order of low, high, and intermediate concentration regions, from low concentration region towards the grain boundary phase in the main phase grains.

摘要翻译： 一种烧结稀土磁体旋转机及改善耐腐蚀性的温度特性和强度的方法。 烧结稀土类磁体至少包括由R2T14B构成的主相（R表示至少一种Nd，Pr或二者的稀土元素，T表示至少一种包含Fe或Fe和Co）化合物的过渡金属元素和晶界 相中含有比主相高的R比例，其中主相包括重稀土元素（Dy，Tb或其中之一），主相的至少部分主相晶粒包括在烧结稀土磁体中 至少包括以下区域，低，高和中等浓度区域。 这些区域按照主相晶粒中低浓度区域和晶界相的低，高和中等浓度区域的顺序存在。