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    Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets
    1.
    发明授权
    Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets 失效
    用于压实生产稀土铁烧结永磁体的粉末混合物

    公开(公告)号：US5486224A

    公开(公告)日：1996-01-23

    申请号：US364315

    申请日：1994-12-27

    申请人： Yoshihisa Kishimoto ,  Nobushige Hiraishi ,  Wataru Takahashi ,  Masakazu Ohkita ,  Naoyuki Ishigaki ,  Yutaka Matsuura

    发明人： Yoshihisa Kishimoto ,  Nobushige Hiraishi ,  Wataru Takahashi ,  Masakazu Ohkita ,  Naoyuki Ishigaki ,  Yutaka Matsuura

    IPC分类号： C22C1/04 ,  H01F1/057 ,  B22F1/00

    CPC分类号： H01F1/0577 ,  C22C1/0441 ,  Y10T428/2991

    摘要： To a fine R--Fe--B alloy powder comprised predominantly of 10-30 atomic % of R (wherein R stands for at least one element selected from rare earth elements including yttrium), 2-28 atomic % of B, and 65-82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01%-2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder. The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged. Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.

    摘要翻译： 对于主要由10-30原子％的R（其中R表示选自包括钇的稀土元素中的至少一种元素），B-28的2-28原子％和65-82的细R-Fe-B合金粉末 其中至多50原子％的Fe可被Co替代的Fe的原子％，至少一种硼酸酯化合物如硼酸三丁酯作为润滑剂以0.01重量％-2重量％的比例加入并在 ，在合金粉末的精细研磨期间或之后。 所得粉末混合物通过在磁场中的压缩成型而压实，并将生坯压坯烧结和老化。 压缩成型可以连续进行而不需要模具润滑，并且所得到的磁体相对于剩余磁通密度，最大能量积和固有矫顽力具有改进的磁体性质。

    Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets
    2.
    发明授权
    Powder mixture for use in compaction to produce rare earth iron sintered permanent magnets 失效
    用于压实生产稀土铁烧结永磁体的粉末混合物

    公开(公告)号：US5527504A

    公开(公告)日：1996-06-18

    申请号：US437373

    申请日：1995-05-09

    申请人： Yoshihisa Kishimoto ,  Nobushige Hiraishi ,  Wataru Takahashi ,  Masakazu Ohkita ,  Naoyuki Ishigaki ,  Yutaka Matsuura

    发明人： Yoshihisa Kishimoto ,  Nobushige Hiraishi ,  Wataru Takahashi ,  Masakazu Ohkita ,  Naoyuki Ishigaki ,  Yutaka Matsuura

    IPC分类号： C22C1/04 ,  H01F1/057 ,  B22F3/12

    CPC分类号： H01F1/0577 ,  C22C1/0441 ,  Y10T428/2991

    摘要： To a fine R-Fe-B alloy powder comprised predominantly of 10-30 atomic % of R (wherein R stands for at least one elements selected from rare earth elements including yttrium), 2-28 atomic % of B, and 65-82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01%-2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder. The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged. Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.

    摘要翻译： 对于主要由10-30原子％的R（其中R代表选自包括钇在内的稀土元素中的至少一种元素），2-28原子％的B和65-82的细R-Fe-B合金粉末 其中至多50原子％的Fe可被Co替代的Fe的原子％，至少一种硼酸酯化合物如硼酸三丁酯作为润滑剂以0.01重量％-2重量％的比例加入，并在 ，在合金粉末的精细研磨期间或之后。 所得粉末混合物通过在磁场中的压缩成型而压实，并将生坯压坯烧结和老化。 压缩成型可以连续进行而不需要模具润滑，并且所得到的磁体相对于剩余磁通密度，最大能量积和固有矫顽力具有改进的磁体性质。

    RARE EARTH SINTERED MAGNET AND METHOD FOR PRODUCING SAME
    4.
    发明申请
    RARE EARTH SINTERED MAGNET AND METHOD FOR PRODUCING SAME 有权
    稀土烧结磁体及其制造方法

    公开(公告)号：US20100148897A1

    公开(公告)日：2010-06-17

    申请号：US12095617

    申请日：2006-11-30

    申请人： Noriyuki Nozawa ,  Tomoori Odaka ,  Yutaka Matsuura

    发明人： Noriyuki Nozawa ,  Tomoori Odaka ,  Yutaka Matsuura

    IPC分类号： H01F7/02 ,  B22F1/00 ,  B22F3/12

    CPC分类号： B22D11/0611 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0278 ,  C22C38/005 ,  H01F1/0577 ,  H01F41/0273 ,  H01F41/0293 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10 ,  B22F2202/05

    摘要： A sintered rare-earth magnet includes an Nd2Fe14B type crystalline phase as its main phase and Al as an additive. The magnet includes at least one light rare-earth element LR selected from the group consisting of yttrium and the rare-earth elements other than Dy, Ho and Tb, and at least one heavy rare-earth element HR selected from the group consisting of Dy, Ho and Tb. The mole fractions α1, α2 and β of the light and heavy rare-earth elements LR and HR and Al satisfy the inequalities 25≦α1+α2≦40 mass %, 0 0.20 mass %, and 0.04≦β/α2≦0.12.

    摘要翻译： 烧结稀土类磁体包括Nd2Fe14B型结晶相作为主相，Al为添加剂。 所述磁体包括选自钇和除Dy，Ho和Tb以外的稀土元素的至少一种轻稀土元素LR，以及选自Dy中的至少一种重稀土类元素 ，Ho和Tb。 摩尔分数α1，α2和＆bgr; 轻质和重稀土元素LR和HR和Al满足不等式25＆nlE;α1+α2＆nlE; 40质量％，0 <α2＆nlE; 40质量％，＆gt; 0.20质量％和0.04＆nlE;＆bgr; /α2＆ ; 0.12。

    R-t-b sintered magnet and rare earth alloy
    5.
    发明申请
    R-t-b sintered magnet and rare earth alloy 有权
    R-t-b烧结磁体和稀土合金

    公开(公告)号：US20060201585A1

    公开(公告)日：2006-09-14

    申请号：US10567502

    申请日：2004-08-10

    申请人： Hiroyuki Tomizawa ,  Yutaka Matsuura

    发明人： Hiroyuki Tomizawa ,  Yutaka Matsuura

    IPC分类号： H01F1/057

    CPC分类号： C22C38/06 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  C22C33/0278 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F1/058 ,  B22F3/02 ,  B22F2202/05 ,  B22F9/08 ,  B22F9/023 ,  B22F9/04 ,  B22F3/10 ,  B22F3/24

    摘要： A rare-earth sintered magnet according to the present invention, of which the main phase is an R2T14B type compound phase, includes: 27 mass % through 32 mass % of R, which is at least one rare-earth element that is selected from the group consisting of Nd, Pr, Tb, and Dy and that always includes at least one of Nd and Pr; 60 mass % through 73 mass % of T, which is either Fe alone or a mixture of Fe and Co; 0.85 mass % through 0.98 mass % of Q, which is either B alone or a mixture of B and C and which is converted-into B on a number of atoms basis when its mass percentage is calculated; more than 0 mass % through 0.3 mass % of Zr; at most 2.0 mass % of an additive element M, which is at least one element selected from the group consisting of Al, Cu, Ga, In and Sn; and inevitably contained impurities.

    摘要翻译： 根据本发明的稀土烧结磁体，其主相是R 2 T 14 T型化合物相，包括：27质量％至32质量％ R是选自Nd，Pr，Tb和Dy中的至少一种稀土元素，并且总是包括Nd和Pr中的至少一种; 60质量％至73质量％的T，其为单独的Fe或Fe和Co的混合物; 0.85质量％至0.98质量％的Q，其为单独的B或B和C的混合物，并且当其质量百分比计算时，以多个原子转化为B; 大于0质量％至0.3质量％的Zr; 至多2.0质量％的添加元素M，其为选自Al，Cu，Ga，In和Sn中的至少一种元素; 并且不可避免地含有杂质。

    Process for producing magnets having improved corrosion resistance
    6.
    发明授权
    Process for producing magnets having improved corrosion resistance 失效
    具有改善的耐腐蚀性的制造磁铁的方法

    公开(公告)号：US5316595A

    公开(公告)日：1994-05-31

    申请号：US740442

    申请日：1991-08-05

    申请人： Takaki Hamada ,  Tetsuji Hayakawa ,  Yutaka Matsuura

    发明人： Takaki Hamada ,  Tetsuji Hayakawa ,  Yutaka Matsuura

    IPC分类号： H01F1/057 ,  H01F41/02 ,  G11B5/70

    CPC分类号： H01F41/026 ,  H01F1/0572 ,  H01F1/0577

    摘要： Fe-B-R type permanent magnet is produced by: forming an anticorrosive coating film layer on a Fe-B-R base permanent magnet material body by means of vapor deposition to thereby improve the corrosion resistance thereof.The anticorrosive thin film is formed of metal, oxides, nitrides, carbides, borides, silicides, composite compositions thereof, or a mixture thereof. Additionally blasting, shot peening, heat treatment for forming an interdiffusion layer, and/or resin impregnation may be applied.

    摘要翻译： Fe-B-R型永磁体通过以下方式制造：在Fe-B-R基永磁体材料体上通过气相沉积形成防腐蚀涂层，从而提高其耐腐蚀性。 防锈薄膜由金属，氧化物，氮化物，碳化物，硼化物，硅化物，其复合组合物或其混合物形成。 另外可以应用喷丸，喷丸硬化，形成相互扩散层的热处理和/或树脂浸渍。

    Magnetic materials
    7.
    发明授权
    Magnetic materials 失效
    磁性材料

    公开(公告)号：US5194098A

    公开(公告)日：1993-03-16

    申请号：US876902

    申请日：1992-04-30

    申请人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

    发明人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

    IPC分类号： C22C1/04 ,  H01F1/057

    CPC分类号： H01F1/057 ,  C22C1/0441 ,  H01F1/0577

    摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of an Fe-B-R intermetallic compound which may be a tetragonal system, wherein at least 50 at % of R consists of Nd and/or Pr, and anisotropic sintered permanent magnets consisting essentially of 8-30 at % R, 2028 at %, B and the balance being Fe with impurities. These magnetic materials and permanent magnets may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf), thus providing Fe-B-R-M type materials and magnets.

    摘要翻译： Fe，B和R（稀土元素）的磁性材料，其具有可以是四方晶系的Fe-BR金属间化合物的主相，其中至少50原子％的R由Nd和/或Pr组成，并且各向异性烧结 基本上由8-30at％R，2028at％，B组成的永磁体，余量为Fe和杂质。 这些磁性材料和永磁体可以含有附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf） 型材和磁铁。

    Magnetic materials and permanent magnets
    8.
    发明授权
    Magnetic materials and permanent magnets 失效
    磁性材料和永久磁铁

    公开(公告)号：US4770723A

    公开(公告)日：1988-09-13

    申请号：US13165

    申请日：1987-02-10

    申请人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

    发明人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

    IPC分类号： C22C1/04 ,  H01F1/057 ,  H01F1/04

    CPC分类号： C22C1/0441 ,  H01F1/057 ,  H01F1/0577

    摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of Fe--B--R intermetallic compound(s) of tetragonal system, and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe--B--R--M type materials and magnets.

    摘要翻译： 包含具有四方晶系的Fe-BR金属间化合物的主相的Fe，B和R（稀土元素）的磁性材料和基本上由原子百分比组成的烧结各向异性永久磁体，其含量为8-30％R 至少一种稀土元素包括Y），2-28％B，余量为Fe与杂质。 这些可以含有Fe-B-R-M型材料和磁铁的附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。

    Magnetic precursor materials for making permanent magnets
    10.
    发明授权
    Magnetic precursor materials for making permanent magnets 失效
    用于制造永久磁铁的磁性前体材料

    公开(公告)号：US5466308A

    公开(公告)日：1995-11-14

    申请号：US194647

    申请日：1994-02-10

    申请人： Setsuo Fujimura ,  Yutaka Matsuura ,  Masato Sagawa

    发明人： Setsuo Fujimura ,  Yutaka Matsuura ,  Masato Sagawa

    IPC分类号： C22C1/04 ,  H01F1/057 ,  C22C38/10

    CPC分类号： C22C1/0441 ,  H01F1/057 ,  H01F1/0577

    摘要： Magnetic materials comprising Fe, B, R (rare earth elements) and Co having a major phase of Fe-Co-B-R intermetallic compound(s) of tetragonal systems and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B, no less than 50% Co, and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe-Co-B-R-M type materials and magnets.

    摘要翻译： 包含Fe，B，R（稀土元素）和具有四方晶系的Fe-Co-BR金属间化合物的主相的Co的磁性材料和基本上由原子百分比组成的烧结各向异性永久磁体的磁性材料为8-30％ R（包括Y的稀土元素中的至少一种），2-28％B，不低于50％的Co，余量为含杂质的Fe。 这些可以含有Fe-Co-B-R-M型材料和磁铁的附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。