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公开(公告)号：US08821649B2
公开(公告)日：2014-09-02
申请号：US13029348
申请日：2011-02-17
申请人： Takayuki Kanda , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
发明人： Takayuki Kanda , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
CPC分类号： H01F1/058 , H01F1/0009 , H01F1/0555 , H01F1/0575 , H01F1/0596 , H01F41/0293
摘要： Characteristics of a magnetic material are improved without using a heavy rare earth element as a scarce resource. By incorporating fluorine into a magnetic powder and controlling the crystal orientation in crystal grains, a magnetic material securing magnetic characteristics such as coercive force and residual flux density can be fabricated. As a result, the resource problem with heavy rare earth elements can be solved, and the magnetic material can be applied to magnetic circuits that require a high energy product, including various rotating machines and voice coil motors of hard discs.
摘要翻译： 不使用重稀土元素作为稀有资源，磁性材料的特性得到改善。 通过将氟加入到磁性粉末中并控制晶粒中的晶体取向，可以制造确保矫顽磁力和残余磁通密度等磁特性的磁性材料。 结果，可以解决重稀土元素的资源问题，并且可以将磁性材料应用于需要高能量产物的磁路，包括各种旋转机器和硬盘的音圈电机。
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公开(公告)号：US20110240909A1
公开(公告)日：2011-10-06
申请号：US13029348
申请日：2011-02-17
申请人： Takayuki KANDA , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
发明人： Takayuki KANDA , Matahiro Komuro , Hiroyuki Suzuki , Yuichi Satsu
CPC分类号： H01F1/058 , H01F1/0009 , H01F1/0555 , H01F1/0575 , H01F1/0596 , H01F41/0293
摘要： Characteristics of a magnetic material are improved without using a heavy rare earth element as a scarce resource. By incorporating fluorine into a magnetic powder and controlling the crystal orientation in crystal grains, a magnetic material securing magnetic characteristics such as coercive force and residual flux density can be fabricated. As a result, the resource problem with heavy rare earth elements can be solved, and the magnetic material can be applied to magnetic circuits that require a high energy product, including various rotating machines and voice coil motors of hard discs.
摘要翻译： 不使用重稀土元素作为稀有资源，磁性材料的特性得到改善。 通过将氟加入到磁性粉末中并控制晶粒中的晶体取向，可以制造确保矫顽磁力和残余磁通密度等磁特性的磁性材料。 结果，可以解决重稀土元素的资源问题，并且可以将磁性材料应用于需要高能量产物的磁路，包括各种旋转机器和硬盘的音圈电机。
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3.发明授权Compacted magnetic core, production method of the same, and motor for electric vehicle 有权紧凑型磁芯，其制作方法和电动汽车电机公开(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。
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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
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。
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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。
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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
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。
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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。
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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
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。
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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。
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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
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。
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