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1.发明授权R-Fe-B type rare earth sintered magnet and process for production of the same 有权R-Fe-B型稀土烧结磁体及其制造方法公开(公告)号：US08945318B2
公开(公告)日：2015-02-03
申请号：US13456250
申请日：2012-04-26
CPC分类号： C22C38/005 , B22F3/24 , B22F2003/248 , B22F2999/00 , C22C33/0278 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F2207/01 , B22F2201/20
摘要： In an R—Fe—B based rare-earth sintered magnet according to the present invention, at a depth of 20 μm under the surface of its magnet body, crystal grains of an R2Fe14B type compound have an (RL1-xRHx)2Fe14B (where 0.2≦x≦0.75) layer with a thickness of 1 nm to 2 μm in their outer periphery. In this case, the light rare-earth element RL is at least one of Nd and Pr, and the heavy rare-earth element RH is at least one element selected from the group consisting of Dy, Ho and Tb.
摘要翻译： 在根据本发明的R-Fe-B系稀土烧结磁体中，在其磁体表面的20μm深处，R2Fe14B型化合物的晶粒具有（RL1-xRHx）2Fe14B（其中 0.2＆nlE; x＆nlE; 0.75）层，其外周的厚度为1nm〜2μm。 在这种情况下，轻稀土元素RL是Nd和Pr中的至少一种，重稀土元素RH是选自Dy，Ho和Tb中的至少一种元素。
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公开(公告)号：US20110205006A1
公开(公告)日：2011-08-25
申请号：US12671915
申请日：2008-09-02
CPC分类号： H01F1/0577 , B22F2999/00 , C22C33/0257 , C22C38/005 , C22C2202/02 , H01F41/0293 , B22F2207/01
摘要： An R—Fe—B based anisotropic sintered magnet according to the present invention has, as a main phase, an R2Fe14B type compound that includes a light rare-earth element RL (which is at least one of Nd and Pr) as a major rare-earth element R, and also has a heavy rare-earth element RH (which is at least one element selected from the group consisting of Dy and Tb). In the crystal lattice of the main phase, the c-axis is oriented in a predetermined direction. The magnet includes a portion in which at least two peaks of diffraction are observed within a 2θ range of 60.5 degrees to 61.5 degrees when an X-ray diffraction measurement is carried out using a CuK α ray on a plane that is located at a depth of 500 μm or less under a pole face of the magnet and that is parallel to the pole face.
摘要翻译： 本发明的R-Fe-B系各向异性烧结磁体作为主相，具有稀土元素RL（Nd和Pr中的至少一种）作为主要稀有元素的R2Fe14B型化合物 - 地基元素R，并且还具有重稀土元素RH（其是选自Dy和Tb中的至少一种元素）。 在主相的晶格中，c轴沿预定方向取向。 磁体包括在2θ范围内观察至少两个衍射峰的部分; 在使用CuKα射线进行X射线衍射测定的情况下，在位于磁铁的极面的500μm以下的平面的平面上并且平行于极的X射线衍射测定的范围为60.5〜61.5度 面对。
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3.发明授权Process for production of R-Fe-B-based rare earth sintered magnet, and steam control member 有权R-Fe-B系稀土烧结磁体的制造方法以及蒸汽控制部件公开(公告)号：US08845821B2
公开(公告)日：2014-09-30
申请号：US13382755
申请日：2010-07-08
申请人： Tomoori Odaka , Hideyuki Morimoto
发明人： Tomoori Odaka , Hideyuki Morimoto
IPC分类号： B05D5/12 , C22C38/00 , H01F1/057 , B22F3/24 , C22C38/06 , C22C38/16 , C22C38/10 , C22C33/02 , H01F41/02
CPC分类号： H01F1/0577 , B22F3/24 , B22F2999/00 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , H01F41/0293 , B22F2201/40
摘要： A sintered R—Fe—B based rare-earth magnet body 1 including, as a main phase, crystal grains of an R2Fe14B type compound that includes a light rare-earth element RL, which is Nd and/or Pr, as a major rare-earth element R is provided. A bulk body 2 including a heavy rare-earth element RH, which is at least one of Dy, Ho and Tb is also provided. The sintered magnet body 1 and the bulk body 2 are arranged in a processing chamber 4 with a vapor control member 3 interposed between the sintered magnet body 1 and the bulk body 2. And the inside of the processing chamber 4 is heated to a temperature of 700° C. to 1000° C., thereby diffusing the heavy rare-earth element RH inside the sintered magnet body 1 while supplying the heavy rare-earth element RH from the bulk body 2 to the surface of the sintered magnet body 1 via the vapor control member 3.
摘要翻译： 作为主相的包含作为Nd和/或Pr的轻稀土元素RL的R2Fe14B型化合物的晶粒作为主相的烧结R-Fe-B系稀土类磁体1，作为主要的稀有金属 提供地面元件R。 还提供了包括Dy，Ho和Tb中的至少一种的重稀土类元素RH的体本体2。 烧结磁体1和体本体2配置在处理室4中，蒸气控制部件3夹在烧结磁体1和体本体2之间。处理室4的内部被加热到 700℃〜1000℃，由此将重稀土类元素RH从体本体2向烧结磁体1的表面经由 蒸汽控制构件3。
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公开(公告)号：US20080286595A1
公开(公告)日：2008-11-20
申请号：US12092286
申请日：2007-03-01
CPC分类号： H01F1/0577 , B22F7/062 , B22F2009/044 , B22F2998/10 , B22F2999/00 , H01F41/0293 , Y10T428/12028 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2201/013 , B22F2202/05
摘要： In a method for producing an R—Fe—B based rare-earth sintered magnet according to the present invention, first, provided is an R—Fe—B based rare-earth sintered magnet body including, as a main phase, crystal grains of an R2Fe14B type compound that includes a light rare-earth element RL, which is at least one of Nd and Pr, as a major rare-earth element R. Thereafter, the sintered magnet body is heated while a heavy rare-earth element RH, which is at least one element selected from the group consisting of Dy, Ho and Tb, is supplied to the surface of the sintered magnet body, thereby diffusing the heavy rare-earth element RH into the rare-earth sintered magnet body.
摘要翻译： 在本发明的R-Fe-B系稀土类烧结磁体的制造方法中，首先，提供作为主相的作为主相的R-Fe-B系稀土类烧结磁体， 包括作为主要稀土元素R 1的至少一种Nd和Pr的轻稀土元素RL的R 2 Fe 14 B型化合物 然后，在烧结磁体的表面供给从Dy，Ho，Tb等中选出的至少一种元素的重稀土类元素RH，对烧结磁体进行加热， 重稀土元素RH进入稀土烧结磁体。
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公开(公告)号：US09551052B2
公开(公告)日：2017-01-24
申请号：US11575928
申请日：2006-07-14
申请人： Hideyuki Morimoto , Tomoori Odaka
发明人： Hideyuki Morimoto , Tomoori Odaka
CPC分类号： C22C38/005 , B22F2998/10 , C22C33/0278 , C22C38/002 , C22C38/06 , C22C38/08 , H01F1/0577 , H01F41/0273 , B22F9/04 , B22F3/10
摘要： A rare-earth sintered magnet includes 12.0 at % to 15.0 at % of rare-earth element(s), which is at least one element selected from the group consisting of Nd, Pr, Gd, Tb, Dy and Ho and at least 50% of which is Nd and/or Pr; 5.5 at % to 8.5 at % of boron (B); a predetermined percentage of additive metal A; and iron (Fe) and inevitably contained impurities as the balance. The predetermined percentage of additive metal A includes at least one of 0.005 at % to 0.30 at % of silver (Ag), 0.005 at % to 0.40 at % of nickel (Ni), and 0.005 at % to 0.20 at % of gold (Au).
摘要翻译： 稀土类烧结磁体包括稀土类元素的12.0％〜15.0at％，这是选自Nd，Pr，Gd，Tb，Dy和Ho中的至少一种元素，并且至少50 其中％为Nd和/或Pr; 5.5％〜8.5％的硼（B）; 预定百分比的添加金属A; 和铁（Fe），不可避免地含有杂质作为天平。 添加金属A的预定百分比包括银（Ag）的0.005原子％至0.30原子％，镍（Ni）0.005原子％至0.40原子％以及金（0.005重量％至0.20原子％）中的至少一种 ）。
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6.发明授权R-Fe-B type rare earth sintered magnet and process for production of the same 有权R-Fe-B型稀土烧结磁体及其制造方法公开(公告)号：US08187392B2
公开(公告)日：2012-05-29
申请号：US12666323
申请日：2008-07-01
IPC分类号： H01F1/057
CPC分类号： C22C38/005 , B22F3/24 , B22F2003/248 , B22F2999/00 , C22C33/0278 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F2207/01 , B22F2201/20
摘要： In an R—Fe—B based rare-earth sintered magnet according to the present invention, at a depth of 20 μm under the surface of its magnet body, crystal grains of an R2Fe14B type compound have an (RL1-xRHx)2Fe14B (where 0.2≦x≦0.75) layer with a thickness of 1 nm to 2 μm in their outer periphery. In this case, the light rare-earth element RL is at least one of Nd and Pr, and the heavy rare-earth element RH is at least one element selected from the group consisting of Dy, Ho and Tb.
摘要翻译： 在根据本发明的R-Fe-B系稀土烧结磁体中，在其磁体表面的20μm深处，R2Fe14B型化合物的晶粒具有（RL1-xRHx）2Fe14B（其中 0.2＆nlE; x＆nlE; 0.75）层，其外周的厚度为1nm〜2μm。 在这种情况下，轻稀土元素RL是Nd和Pr中的至少一种，重稀土元素RH是选自Dy，Ho和Tb中的至少一种元素。
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公开(公告)号：US08177922B2
公开(公告)日：2012-05-15
申请号：US12671915
申请日：2008-09-02
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , B22F2999/00 , C22C33/0257 , C22C38/005 , C22C2202/02 , H01F41/0293 , B22F2207/01
摘要： An R—Fe—B based anisotropic sintered magnet according to the present invention has, as a main phase, an R2Fe14B type compound that includes a light rare-earth element RL (which is at least one of Nd and Pr) as a major rare-earth element R, and also has a heavy rare-earth element RH (which is at least one element selected from the group consisting of Dy and Tb). In the crystal lattice of the main phase, the c-axis is oriented in a predetermined direction. The magnet includes a portion in which at least two peaks of diffraction are observed within a 2θ range of 60.5 degrees to 61.5 degrees when an X-ray diffraction measurement is carried out using a CuK α ray on a plane that is located at a depth of 500 μm or less under a pole face of the magnet and that is parallel to the pole face.
摘要翻译： 本发明的R-Fe-B系各向异性烧结磁体作为主相，具有稀土元素RL（Nd和Pr中的至少一种）作为主要稀有元素的R2Fe14B型化合物 - 地基元素R，并且还具有重稀土元素RH（其是选自Dy和Tb中的至少一种元素）。 在主相的晶格中，c轴沿预定方向取向。 磁体包括在2θ范围内观察到至少两个衍射峰的部分; 在使用CuKα射线进行X射线衍射测定的情况下，在位于磁铁的极面的500μm以下的平面的平面上并且平行于极的X射线衍射测定的范围为60.5〜61.5度 面对。
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8.发明申请R-Fe-B TYPE RARE EARTH SINTERED MAGNET AND PROCESS FOR PRODUCTION OF THE SAME 有权R-Fe-B型稀土烧结磁体及其制造方法公开(公告)号：US20100182113A1
公开(公告)日：2010-07-22
申请号：US12666323
申请日：2008-07-01
CPC分类号： C22C38/005 , B22F3/24 , B22F2003/248 , B22F2999/00 , C22C33/0278 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F2207/01 , B22F2201/20
摘要： In an R—Fe—B based rare-earth sintered magnet according to the present invention, at a depth of 20 μm under the surface of its magnet body, crystal grains of an R2Fe14B type compound have an (RL1-xRHx)2Fe14B (where 0.2≦x≦0.75) layer with a thickness of 1 nm to 2 μm in their outer periphery. In this case, the light rare-earth element RL is at least one of Nd and Pr, and the heavy rare-earth element RH is at least one element selected from the group consisting of Dy, Ho and Tb.
摘要翻译： 在根据本发明的R-Fe-B系稀土烧结磁体中，在其磁体表面的20μm深处，R2Fe14B型化合物的晶粒具有（RL1-xRHx）2Fe14B（其中 0.2＆nlE; x＆nlE; 0.75）层，其外周的厚度为1nm〜2μm。 在这种情况下，轻稀土元素RL是Nd和Pr中的至少一种，重稀土元素RH是选自Dy，Ho和Tb中的至少一种元素。
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9.发明授权公开(公告)号：US08182619B2
公开(公告)日：2012-05-22
申请号：US13176097
申请日：2011-07-05
申请人： Hideyuki Morimoto , Tomoori Odaka , Masao Noumi
发明人： Hideyuki Morimoto , Tomoori Odaka , Masao Noumi
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , B22F2998/10 , B22F2999/00 , C22C1/0475 , H01F41/0293 , H01F41/18 , H01F41/20 , B22F3/10 , B22F2207/01
摘要： First, an R—Fe—B based rare-earth sintered magnet body including, as a main phase, crystal grains of an R2Fe14B type compound that includes a light rare-earth element RL, which is at least one of Nd and Pr, as a major rare-earth element R is provided. Next, an M layer, including a metallic element M that is at least one element selected from the group consisting of Al, Ga, In, Sn, Pb, Bi, Zn and Ag, is deposited on the surface of the sintered magnet body and then an RH layer, including a heavy rare-earth element RH that is at least one element selected from the group consisting of Dy, Ho and Tb, is deposited on the M layer. Thereafter, the sintered magnet body is heated, thereby diffusing the metallic element M and the heavy rare-earth element RH from the surface of the magnet body deeper inside the magnet.
摘要翻译： 首先，将作为主相的R-Fe-B系稀土类烧结磁体作为主要相，包含作为Nd和Pr中的至少一种的稀土元素RL的R2Fe14B型化合物的晶粒，作为 提供了主要的稀土元素R. 接着，在烧结磁体的表面上沉积包含选自Al，Ga，In，Sn，Pb，Bi，Zn和Ag中的至少一种元素的金属元素M的M层， 则在M层上沉积包含作为选自Dy，Ho和Tb中的至少一种元素的重稀土类元素RH的RH层。 此后，烧结磁体被加热，从而使金属元件M和重稀土元素RH从磁体的表面更深地扩散到磁体内部。
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公开(公告)号：US08177921B2
公开(公告)日：2012-05-15
申请号：US12670718
申请日：2008-07-25
IPC分类号： H01F1/057
CPC分类号： C21D6/00 , B22F2003/248 , B22F2998/10 , C22C33/0278 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F41/0293 , B22F9/023 , B22F9/04 , B22F3/02 , B22F3/10 , B22F3/24
摘要： An R—Fe—B based rare-earth sintered magnet according to the present invention includes, as a main phase, crystal grains of an R2Fe14B type compound that includes Nd, which is a light rare-earth element, as a major rare-earth element R. The magnet includes a heavy rare-earth element RH (which is at least one of Dy and Tb) that has been introduced through the surface of the sintered magnet by diffusion. The magnet has a region in which the concentration of the heavy rare-earth element RH in a grain boundary R-rich phase is lower than at the surface of the crystal grains of the R2Fe14B type compound but higher than at the core of the crystal grains of the R2Fe14B type compound.
摘要翻译： 本发明的R-Fe-B系稀土类烧结磁体作为主相，含有作为主稀土元素的作为轻稀土元素的Nd的R2Fe14B型化合物的晶粒 元素R.磁体包括通过扩散通过烧结磁体的表面引入的重稀土元素RH（其是Dy和Tb中的至少一种）。 磁体具有这样的区域，其中富R晶相中的重稀土元素RH的浓度比R2Fe14B型化合物的晶粒表面低，但高于晶粒的核心 的R2Fe14B型化合物。
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