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    PRODUCTION METHOD FOR ANISOTROPIC BONDED MAGNET AND PRODUCTION APPARATUS FOR SAME
    3.
    发明授权
    PRODUCTION METHOD FOR ANISOTROPIC BONDED MAGNET AND PRODUCTION APPARATUS FOR SAME 有权
    用于生产各向异性粘结磁体的制造装置

    公开(公告)号：EP2557577B1

    公开(公告)日：2016-08-24

    申请号：EP11765923.5

    申请日：2011-04-05

    申请人： Aichi Steel Corporation

    发明人： HONKURA Yoshinobu ,  MITARAI Hironari ,  MATSUOKA Hiroshi ,  KATO Masayuki ,  OKUMURA Ikuzou

    IPC分类号： H01F41/02 ,  H01F1/08 ,  H02K15/03

    CPC分类号： H01F41/0266 ,  B22F3/004 ,  B22F3/03 ,  B22F3/04 ,  B22F3/24 ,  B22F2003/248 ,  B22F2202/05 ,  B22F2998/10 ,  B29C43/003 ,  H01F1/01 ,  H01F1/0578 ,  H01F1/083 ,  H01F1/28 ,  H01F41/0273 ,  H01F41/028 ,  H02K15/03

    摘要： A production method for an anisotropic bonded magnet is provided which can improve the productivity for annular anisotropic bonded magnets and reduce the cost thereof. The production method for an anisotropic bonded magnet according to the present invention comprises: an alignment step that applies, from aligning magnetic pole bodies (13, 14) which include an even number of permanent magnets arranged uniformly around the outer periphery of an annular cavity (c) filled with magnetic raw material, aligning magnetic fields to cause rare-earth anisotropic magnet powder to be semi-radially aligned; a molding step that compressively molds the semi-radially aligned magnet raw material to obtain an annular compact; and a discharging step that discharges the compact from the annular cavity, and is characterized by further comprising a demagnetizing step that causes the aligning magnetic pole bodies to relatively move only in circumferential direction with respect to the compact after the molding step thereby to apply demagnetization magnetic fields to the compact, wherein the demagnetization magnetic fields are applied from the aligning magnetic pole bodies with opposite poles to those during the alignment step, and the demagnetization magnetic fields are in directions for cancelling the magnetization of the compact caused by the aligning magnetic fields. This allows considerable number of anisotropic bonded magnets to be produced in a short time.

    CASE-BODY BONDED MAGNET, AND METHOD FOR PRODUCING SAME
    6.
    发明公开
    CASE-BODY BONDED MAGNET, AND METHOD FOR PRODUCING SAME 有权
    方法用于生产集成的外壳约束MAGNET

    公开(公告)号：EP2562775A1

    公开(公告)日：2013-02-27

    申请号：EP11765926.8

    申请日：2011-04-05

    申请人： Aichi Steel Corporation

    发明人： HONKURA Yoshinobu ,  MITARAI Hironari ,  MATSUOKA Hiroshi ,  KATO Masayuki ,  OKUMURA Ikuzou

    IPC分类号： H01F41/02 ,  H01F1/08 ,  H01F7/02 ,  H02K15/03

    CPC分类号： H01F41/0266 ,  B22F3/004 ,  B22F3/03 ,  B22F3/04 ,  B22F3/24 ,  B22F2003/248 ,  B22F2202/05 ,  B22F2998/10 ,  B29C43/003 ,  H01F1/01 ,  H01F1/0578 ,  H01F1/083 ,  H01F1/28 ,  H01F41/0273 ,  H01F41/028 ,  H02K15/03

    摘要： A production method is provided which can efficiently produce a case-integrated bonded magnet wherein a tubular bonded magnet and a tubular case are strongly pressure-bonded. The production method for a case-integrated bonded magnet according to the present invention comprises: a filling step that fills a tubular cavity with a magnet raw material, the magnet raw material including one or more types of rare-earth magnet powder and a thermosetting resin to be a binder; a heating/molding step that heats the magnet raw material to cause the thermosetting resin to be in softened state or molten state while compressively molding the magnet raw material to obtain a tubular compact; a discharging/press-fitting step that discharges the tubular compact from the tubular cavity while press-fitting the tubular compact into a metal tubular case having an inner peripheral surface coaxial with the tubular cavity; and a heat-curing step that heats the tubular compact with the tubular case to cure the thermosetting resin. The tubular compact press-fitted into the tubular case is thermally cured thereby causing the tubular compact to transform to a tubular bonded magnet, which expands due to heat more than expected. As a result, a case-integrated bonded magnet is obtained in which the tubular case and the tubular bonded magnet are strongly pressure-bonded.

    摘要翻译： 本发明提供一种制造方法，能有效产生的情况下一体粘结磁体worin管状粘结磁体和管状壳体强烈压接。 为雅鼎在本发明的情况下一体粘结磁体的制造方法，包括：填充步骤没填充的管状腔体与磁铁原料时，磁铁原料包含稀土类磁铁粉末的一种或多种类型和热固性树脂 为粘合剂; 加热/成型步骤做加热磁铁原料以引起状态或熔融状态下被软化的热固化性树脂而成型压缩磁铁原料从而得到管状紧凑; 放电/压入工序做了排出从所述管状腔管状紧凑而压入紧凑管状成具有上内周面同轴与管状腔体的筒状金属壳体; 和热固化步骤做加热管状紧凑与管状壳体，以固化热固性树脂。 管状紧凑压入筒状壳体被热固化从而使管状紧凑变换到管状粘结磁体，其扩展了由于热超过预期。 其结果是，一个壳体一体粘结磁体获得其中所述管状壳和管状粘结磁铁有很强的压接。

    SURFACE TREATED RARE EARTH MAGNETIC POWDER, BONDED MAGNET RESIN COMPOSITION THAT INCLUDES THE RARE EARTH MAGNETIC POWDER, AND BONDED MAGNET
    8.
    发明公开
    SURFACE TREATED RARE EARTH MAGNETIC POWDER, BONDED MAGNET RESIN COMPOSITION THAT INCLUDES THE RARE EARTH MAGNETIC POWDER, AND BONDED MAGNET 有权
    与这种粉末，绑磁体表面处理的稀土，粘结磁体树脂组合物

    公开(公告)号：EP2394761A1

    公开(公告)日：2011-12-14

    申请号：EP10738560.1

    申请日：2010-02-03

    申请人： Toda Kogyo Corporation

    发明人： SHIGEOKA, Kuniyoshi ,  KATAYAMA, Nobuhiro

    IPC分类号： B22F1/02 ,  B22F1/00 ,  B22F3/00 ,  H01F1/053 ,  H01F1/08

    CPC分类号： B22F1/02 ,  B22F3/14 ,  C22C33/0278 ,  C22C2202/02 ,  H01F1/0572 ,  H01F1/0578 ,  H01F1/059

    摘要： The present invention relates to surface-treated rare earth-based magnetic particles comprising rare-earth-based magnetic particles, a first coating layer comprising a phosphoric acid compound which is formed on a surface of the respective magnetic particles and a second coating layer in the form of a composite coating film comprising a silicon compound and a phosphoric acid compound which is formed on a surface of the first coating layer, wherein an amount of Fe eluted from the rare earth-based magnetic particles is not more than 10 mg/L; a resin composition for bonded magnets comprising the above surface-treated rare earth-based magnetic particles and a resin; and a bonded magnet comprising the above surface-treated rare earth-based magnetic particles.

    摘要翻译： 本发明涉及表面处理过的稀土基磁性颗粒包括基于稀土磁性粒子，它是在respectivement磁性粒子的表面和在所述的第二涂层上形成的第一包衣层包含磷酸化合物的所有 复合涂层的形式的膜，其包含在所述第一涂层的表面上形成的有机硅化合物和磷酸化合物的所有，worin从稀土基磁性粒子中溶出的Fe的量为不大于10毫克/升; 对于包括上述表面处理过的稀土基磁性颗粒和树脂的粘结磁铁用树脂组合物; 和粘结磁体，包括上述表面处理过的稀土基磁性粒子。