公开(公告)号：US08303732B2

公开(公告)日：2012-11-06

申请号：US12696074

申请日：2010-01-29

申请人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro

发明人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro

IPC分类号： H01F1/057

CPC分类号： C22C1/0441 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0293

摘要： A rare earth magnet having a composition represented by RTB wherein R denotes a rare earth element, T a transition metal and B boron, the magnet being composed of magnet powder constituted by crystalline particles. The particles of the magnetic powder have a ratio of a short diameter being 10 μm or more to a long diameter is 0.5 or less. An element Rm having a magnetic anisotropy higher than that of the rare earth element is contained in the surface and inside of the magnet constituted by the magnet powder in an approximately constant concentration. An oxy-fluoride and carbon are present at boundaries of the particles of the magnet powder.

摘要翻译： 具有由RTB表示的组成的稀土类磁体，其中R表示稀土元素，T是过渡金属和B硼，所述磁体由由结晶颗粒构成的磁体粉末组成。 磁粉的粒子的短径为10μm以上的长径比为0.5以下。 具有高于稀土元素的磁各向异性的元素Rm被包含在以大致恒定的浓度由磁体粉末构成的磁体的表面和内部。 氧氟化物和碳存在于磁体粉末颗粒的边界处。

公开(公告)号：US20120025651A1

公开(公告)日：2012-02-02

申请号：US13257331

申请日：2010-02-18

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Hiroyuki Suzuki ,  Takao Imagawa

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Hiroyuki Suzuki ,  Takao Imagawa

IPC分类号： H01F1/04 ,  H02K21/02

CPC分类号： H01F1/0577 ,  C22C2202/02 ,  H01F1/0572 ,  H01F41/0266 ,  H01F41/0293

摘要： A sintered magnet according to the present invention is a sintered magnet configured from a magnetic powder grain having Nd2Fe14B as a main component, in which: fluorine, a heavy rare earth element, oxygen, and carbon are segregated in part of grain-boundary regions of said sintered magnetic powder grain; concentration of the carbon is higher than concentration of the fluorine at a grain-boundary triple junction of the grain-boundary region; and concentration of the heavy rare earth element decreases from said grain-boundary triple junction toward an inside of said magnetic powder grain.

摘要翻译： 根据本发明的烧结磁体是由以Nd2Fe14B为主要成分的磁性粉末颗粒构成的烧结磁体，其中，氟，重稀土元素，氧和碳在部分晶界区域分离 所述烧结磁粉颗粒; 碳的浓度高于晶界的晶界三重结的氟浓度; 并且所述重稀土元素的浓度从所述晶界三重结点向所述磁粉颗粒的内部减少。

公开(公告)号：US20110133112A1

公开(公告)日：2011-06-09

申请号：US12956253

申请日：2010-11-30

申请人： Hiroyuki SUZUKI ,  Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa

发明人： Hiroyuki SUZUKI ,  Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa

IPC分类号： H01F1/04

CPC分类号： H01F1/055 ,  C22C38/005 ,  H01F1/0552 ,  H01F1/11 ,  H01F1/112

摘要： A ferromagnetic compound magnet in accordance with the present invention includes a ferromagnetic compound based on a binary alloy containing R—Fe system (R is a 4f transition element or Y) or a ternary allay containing R—Fe-T system (R is a 4f transition element or Y, and T is a 3d transition element except for Fe, or Mo, Nb or W), the ferromagnetic compound being characterized by: atomic percentage of the element R to the element Fe or to the elements Fe and T is 15% or lower; an element F is incorporated into an interstitial position in a crystal lattice of the alloy. The ferromagnetic compound is expressed in a chemical formula of: R2Fe17Fx; R2(Fe,T)17Fx; R3Fe29Fy; R3(Fe,T)29Fy; RFe12Fz; or R(Fe,T)12Fz (0

摘要翻译： 根据本发明的铁磁性复合磁体包括基于含有R-Fe体系的二元合金（R为4f过渡元素或Y）或含有R-Fe-T体系的三元杂质的铁磁性化合物（R为4f 过渡元素或Y，T是除Fe或Mo，Nb或W以外的3d过渡元素），铁磁性化合物的特征在于：元素R与元素Fe或元素Fe和T的原子百分比为15 ％以下; 元素F被结合到合金的晶格中的间隙位置。 铁磁性化合物以化学式表示：R2Fe17Fx; R2（Fe，T）17Fx; R3Fe29Fy; R3（Fe，T）29Fy; RFe12Fz; 或R（Fe，T）12Fz（0

公开(公告)号：US08226779B2

公开(公告)日：2012-07-24

申请号：US12099800

申请日：2008-04-09

申请人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

发明人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

IPC分类号： H01F1/24

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0228 ,  C22C2202/02 ,  H01F41/0246 ,  B22F9/082 ,  B22F1/0085 ,  B22F3/02 ,  B22F3/24

摘要： A manufacturing method of a magnetic core includes a first step of applying a treatment liquid for forming an insulating film to iron powder; a second step of heat-treating the iron powder to which the treatment liquid has been applied, at a temperature higher than 350 degrees; a third step of compacting the heat-treated iron powder to form a magnetic core; and a forth step of heat-treating the magnetic core at a temperature ranging from 600 degrees to 800 degrees.

摘要翻译： 磁芯的制造方法包括：向铁粉施加用于形成绝缘膜的处理液的第1工序; 在高于350度的温度下对已经施加了处理液的铁粉进行热处理的第二步骤; 压制热处理铁粉以形成磁芯的第三步骤; 以及在600〜800度的温度下对磁芯进行热处理的第四工序。

公开(公告)号：US07880357B2

公开(公告)日：2011-02-01

申请号：US12543068

申请日：2009-08-18

申请人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Takashi Yasuhara ,  Yutaka Matsunobu

发明人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Takashi Yasuhara ,  Yutaka Matsunobu

IPC分类号： H02K1/17 ,  H02K1/27 ,  H01F1/00

CPC分类号： H02K1/2766 ,  H01F1/0577 ,  H01F41/0253 ,  H01F41/0293 ,  H02K1/02

摘要： A sintered magnet and a rotating machine equipped therewith are disclosed, which include: crystal grains of a ferromagnetic material consisting mainly of iron, and a fluoride compound or an oxyfluoride compound, containing at least one element selected from the group consisting of an alkali metal element, an alkaline earth metal element, and a rare earth element, the fluoride compound or the oxyfluoride compound being formed inside some of the crystal grains or in a part of a grain boundary part. The oxyfluoride compound or the fluoride compound contains carbon, and a grain boundary width of the ferromagnetic material is smaller than a grain boundary width of the ferromagnetic material in which the fluoride compound or the oxyfluoride compound is formed.

摘要翻译： 公开了一种烧结磁铁及其旋转机械，它包括：主要由铁组成的铁磁性材料的晶粒和含有至少一种选自碱金属元素的元素的氟化物或氟氧化物， ，碱土金属元素和稀土元素，所述氟化物或氟氧化物化合物形成在一些晶粒内部或部分晶界部分中。 氟氧化物或氟化合物含有碳，铁磁材料的晶界宽度小于其中形成氟化物或氟氧化物的铁磁材料的晶界宽度。

公开(公告)号：US20100194509A1

公开(公告)日：2010-08-05

申请号：US12696074

申请日：2010-01-29

申请人： Hiroyuki SUZUKI ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro

发明人： Hiroyuki SUZUKI ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro

IPC分类号： H01F7/02

CPC分类号： C22C1/0441 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0293

摘要： A rare earth magnet having a composition represented by RTB wherein R denotes a rare earth element, T a transition metal and B boron, the magnet being composed of magnet powder constituted by crystalline particles. The particles of the magnetic powder have a ratio of a short diameter being 10 μm or more to a long diameter is 0.5 or less. An element Rm having a magnetic anisotropy higher than that of the rare earth element is contained in the surface and inside of the magnet constituted by the magnet powder in an approximately constant concentration. An oxy-fluoride and carbon are present at boundaries of the particles of the magnet powder.

摘要翻译： 具有由RTB表示的组成的稀土类磁体，其中R表示稀土元素，T是过渡金属和B硼，所述磁体由由结晶颗粒构成的磁体粉末组成。 磁粉的粒子的短径为10μm以上的长径比为0.5以下。 具有高于稀土元素的磁各向异性的元素Rm被包含在以大致恒定的浓度由磁体粉末构成的磁体的表面和内部。 氧氟化物和碳存在于磁体粉末颗粒的边界处。

公开(公告)号：US20080117008A1

公开(公告)日：2008-05-22

申请号：US11943215

申请日：2007-11-20

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa ,  Hiroyuki Suzuki

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa ,  Hiroyuki Suzuki

IPC分类号： H01F7/02 ,  B22F3/12

CPC分类号： H01F1/0576 ,  B22F3/26 ,  B22F2003/248 ,  B22F2009/048 ,  B22F2998/10 ,  C22C2202/02 ,  H01F41/0293 ,  Y10T428/25 ,  Y10T428/2982 ,  Y10T428/2991 ,  B22F9/04 ,  B22F3/02 ,  B22F3/24

摘要： A magnet comprising magnetic powder containing at least one rare earth metal element, and an oxide binder for binding the magnetic powder, wherein an inter-face distance of the binder determined by diffraction analysis is 0.25 to 2.94 nm. The disclosure also discloses a method of manufacturing a magnet comprising; compacting magnetic powder containing at least one rare earth element under pressure in a mold; impregnating the compacted magnetic powder molding with a precursor solution of an oxide material; and heat-treating the compacted magnetic molding impregnated with the precursor thereby to impart an inter-face distance determined by diffraction analysis to the binder in the compacted molding. The distance is 0.25 to 2.94 nm.

摘要翻译： 包含含有至少一种稀土金属元素的磁性粉末和用于粘结磁性粉末的氧化物粘合剂的磁体，其中通过衍射分析确定的粘合剂的面间距离为0.25至2.94nm。 本公开还公开了一种制造磁体的方法，包括： 在模具中压制含有至少一种稀土元素的压粉磁粉; 用氧化物材料的前体溶液浸渍压实的磁性粉末成型体; 并且对浸渍有前体的压制磁性成型体进行热处理，从而通过衍射分析确定在压制成型体中的粘合剂的面间距离。 距离为0.25至2.94nm。

公开(公告)号：US07927501B2

公开(公告)日：2011-04-19

申请号：US11943215

申请日：2007-11-20

申请人： Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa ,  Hiroyuki Suzuki

发明人： Matahiro Komuro ,  Yuichi Satsu ,  Takao Imagawa ,  Hiroyuki Suzuki

IPC分类号： H01F1/08

CPC分类号： H01F1/0576 ,  B22F3/26 ,  B22F2003/248 ,  B22F2009/048 ,  B22F2998/10 ,  C22C2202/02 ,  H01F41/0293 ,  Y10T428/25 ,  Y10T428/2982 ,  Y10T428/2991 ,  B22F9/04 ,  B22F3/02 ,  B22F3/24

摘要： A magnet comprising magnetic powder containing at least one rare earth metal element, and an oxide binder for binding the magnetic powder, wherein an inter-face distance of the binder determined by diffraction analysis is 0.25 to 2.94 nm. The disclosure also discloses a method of manufacturing a magnet comprising; compacting magnetic powder containing at least one rare earth element under pressure in a mold; impregnating the compacted magnetic powder molding with a precursor solution of an oxide material; and heat-treating the compacted magnetic molding impregnated with the precursor thereby to impart an inter-face distance determined by diffraction analysis to the binder in the compacted molding. The distance is 0.25 to 2.94 nm.

摘要翻译： 包含含有至少一种稀土金属元素的磁性粉末和用于粘结磁性粉末的氧化物粘合剂的磁体，其中通过衍射分析确定的粘合剂的面间距离为0.25至2.94nm。 本公开还公开了一种制造磁体的方法，包括： 在模具中压制含有至少一种稀土元素的压粉磁粉; 用氧化物材料的前体溶液浸渍压实的磁性粉末成型体; 并且对浸渍有前体的压制磁性成型体进行热处理，从而通过衍射分析确定在压制成型体中的粘合剂的面间距离。 距离为0.25至2.94nm。

公开(公告)号：US20100079025A1

公开(公告)日：2010-04-01

申请号：US12543068

申请日：2009-08-18

申请人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Takashi Yasuhara ,  Yutaka Matsunobu

发明人： Hiroyuki Suzuki ,  Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Takashi Yasuhara ,  Yutaka Matsunobu

IPC分类号： H02K21/12 ,  H01F7/02

CPC分类号： H02K1/2766 ,  H01F1/0577 ,  H01F41/0253 ,  H01F41/0293 ,  H02K1/02

摘要： A sintered magnet and a rotating machine equipped therewith are disclosed, which include: crystal grains of a ferromagnetic material consisting mainly of iron, and a fluoride compound or an oxyfluoride compound, containing at least one element selected from the group consisting of an alkali metal element, an alkaline earth metal element, and a rare earth element, the fluoride compound or the oxyfluoride compound being formed inside some of the crystal grains or in a part of a grain boundary part. The oxyfluoride compound or the fluoride compound contains carbon, and a grain boundary width of the ferromagnetic material is smaller than a grain boundary width of the ferromagnetic material in which the fluoride compound or the oxyfluoride compound is formed.

摘要翻译： 公开了一种烧结磁铁及其旋转机械，它包括：主要由铁组成的铁磁性材料的晶粒和含有至少一种选自碱金属元素的元素的氟化物或氟氧化物， ，碱土金属元素和稀土元素，所述氟化物或氟氧化物化合物形成在一些晶粒内部或部分晶界部分中。 氟氧化物或氟化合物含有碳，铁磁材料的晶界宽度小于其中形成氟化物或氟氧化物的铁磁材料的晶界宽度。

公开(公告)号：US20080260564A1

公开(公告)日：2008-10-23

申请号：US12099800

申请日：2008-04-09

申请人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

发明人： Takao Imagawa ,  Yuichi Satsu ,  Matahiro Komuro ,  Hiroyuki Suzuki

IPC分类号： B22F1/02 ,  H01F1/04

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0228 ,  C22C2202/02 ,  H01F41/0246 ,  B22F9/082 ,  B22F1/0085 ,  B22F3/02 ,  B22F3/24

摘要： A manufacturing method of a magnetic core includes a first step of applying a treatment liquid for forming an insulating film to iron powder; a second step of heat-treating the iron powder to which the treatment liquid has been applied, at a temperature higher than 350 degrees; a third step of compacting the heat-treated iron powder to form a magnetic core; and a forth step of heat-treating the magnetic core at a temperature ranging from 600 degrees to 800 degrees.

摘要翻译： 磁芯的制造方法包括：向铁粉施加用于形成绝缘膜的处理液的第一工序; 在高于350度的温度下对已经施加了处理液的铁粉进行热处理的第二步骤; 压制热处理铁粉以形成磁芯的第三步骤; 以及在600〜800度的温度下对磁芯进行热处理的第四工序。