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    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET
    4.
    发明申请
    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET 审中-公开
    稀土永磁体及制造稀土永磁体的方法

    公开(公告)号：US20130141197A1

    公开(公告)日：2013-06-06

    申请号：US13817104

    申请日：2012-03-15

    申请人： Takashi Ozaki ,  Katsuya Kume ,  Toshiaki Okuno ,  Izumi Ozeki ,  Tomohiro Omure ,  Keisuke Taihaku

    发明人： Takashi Ozaki ,  Katsuya Kume ,  Toshiaki Okuno ,  Izumi Ozeki ,  Tomohiro Omure ,  Keisuke Taihaku

    IPC分类号： H01F41/02 ,  H01F7/02

    CPC分类号： H01F41/0266 ,  B22F3/22 ,  B22F2001/0066 ,  B22F2998/10 ,  C22C38/002 ,  C22C38/005 ,  C22C2202/02 ,  H01F1/0577 ,  H01F7/02 ,  B22F3/10

    摘要： There are provided a rare-earth permanent magnet and a manufacturing method of the rare-earth permanent magnet capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder, and the magnet powder is mixed with a binder made of a hydrocarbon to prepare slurry 12, and one or more kinds of organic solvents selected from a group of organic compounds consisting of hydrocarbons. Next, the slurry 12 is formed into a sheet-like shape to obtain a green sheet 13. After that, the green sheet 13 is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to cause depolymerization reaction or the like to the binder, which turns into monomer and is removed. The green sheet 13 with the binder removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet 1 is obtained.

    摘要翻译： 提供了一种能够防止磁体特性劣化的稀土永磁体和稀土永磁体的制造方法。 在该方法中，将磁体材料研磨成磁体粉末，并将磁体粉末与由烃组成的粘合剂混合以制备浆料12，以及选自由烃组成的一组有机化合物的一种或多种有机溶剂。 接下来，将浆料12形成为片状，得到生片13.然后，在非氧化性气氛中，将生片13在粘合剂分解温度下保持规定时间，使其解聚 反应等与粘合剂反应，其变成单体并被除去。 将去除了粘合剂的生片13通过升高温度烧结至烧结温度。 由此得到永磁体1。

    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET
    6.
    发明申请
    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET 审中-公开
    稀土永磁体及制造稀土永磁体的方法

    公开(公告)号：US20130141195A1

    公开(公告)日：2013-06-06

    申请号：US13816327

    申请日：2012-03-15

    申请人： Keisuke Taihaku ,  Katsuya Kume ,  Izumi Ozeki ,  Toshiaki Okuno ,  Tomohiro Omure ,  Takashi Ozaki

    发明人： Keisuke Taihaku ,  Katsuya Kume ,  Izumi Ozeki ,  Toshiaki Okuno ,  Tomohiro Omure ,  Takashi Ozaki

    IPC分类号： H01F7/02

    CPC分类号： H01F7/02 ,  B22F1/02 ,  B22F3/02 ,  B22F3/1021 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0577 ,  H01F7/0215 ,  H01F41/0266

    摘要： There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder. Next, a mixture is prepared by mixing the magnet powder and a binder made of a fatty acid methyl ester and/or one of or a blend of polymers and copolymers each composed of monomers satisfying a given condition. Next, the mixture is formed into a sheet-like shape to obtain a green sheet. After that, the green sheet is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to remove the binder by causing depolymerization reaction or the like to the binder, which turns into monomer. The green sheet from which the binder has been removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet 1 is obtained.

    摘要翻译： 提供了能够防止磁体特性劣化的稀土永磁体及其制造方法。 在该方法中，将磁体材料研磨成磁铁粉末。 接下来，通过混合磁铁粉末和由脂肪酸甲酯制成的粘合剂和/或各自由满足给定条件的单体组成的聚合物和共聚物之一或共混物之一来制备混合物。 接着，将该混合物形成为片状，得到生片。 之后，将生片在非氧化性气氛中在粘合剂分解温度下保持规定的时间，以便通过使粘合剂进行解聚反应等而变成单体来除去粘合剂。 通过将温度升高至烧结温度来烧结已经除去粘合剂的生片。 由此得到永磁体1。

    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET
    7.
    发明申请
    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET 审中-公开
    稀土永磁体及制造稀土永磁体的方法

    公开(公告)号：US20130135070A1

    公开(公告)日：2013-05-30

    申请号：US13816104

    申请日：2012-03-15

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Toshiaki Okuno ,  Takashi Ozaki ,  Tomohiro Omure ,  Keisuke Taihaku

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Toshiaki Okuno ,  Takashi Ozaki ,  Tomohiro Omure ,  Keisuke Taihaku

    IPC分类号： H01F41/16 ,  H01F1/00

    CPC分类号： H01F41/16 ,  B22F3/22 ,  B22F9/04 ,  B22F2998/10 ,  C22C19/07 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  H01F1/00 ,  H01F1/0577 ,  H01F41/0273 ,  B22F3/105

    摘要： There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of boosting productivity by improving thickness accuracy of a green sheet. In the method, magnet material is milled into magnet powder, and the magnet powder and a binder are mixed to obtain a mixture including 1 to 40 wt % of the binder therein. Next, by high precision coating of a substrate with the mixture, a green sheet is obtained at thickness precision within a margin of error of plus or minus 5% with reference to a designed value. Thereafter, the green sheet is held for predetermined time at binder decomposition temperature in non-oxidizing atmosphere, whereby depolymerization reaction or the like changes the binder into monomer and thus removes the binder. The green sheet with the binder removed therefrom undergoes pressure sintering such as SPS method so as to obtain a permanent magnet 1.

    摘要翻译： 提供了一种能够通过提高生片的厚度精度来提高生产率的稀土永磁体及其制造方法。 在该方法中，将磁体材料研磨成磁体粉末，并将磁体粉末和粘合剂混合，得到其中含有1〜40重量％粘合剂的混合物。 接下来，通过用混合物高精度地涂布基板，以相对于设计值在±5％的误差范围内的厚度精度获得生片。 此后，在非氧化性气氛中，生片在粘合剂分解温度下保持规定时间，由此解聚反应等将粘合剂变为单体，从而除去粘合剂。 从其去除粘合剂的生片进行诸如SPS法的加压烧结，以获得永磁体1。

    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET
    8.
    发明申请
    RARE-EARTH PERMANENT MAGNET AND METHOD FOR MANUFACTURING RARE-EARTH PERMANENT MAGNET 审中-公开
    稀土永磁体及制造稀土永磁体的方法

    公开(公告)号：US20130141194A1

    公开(公告)日：2013-06-06

    申请号：US13816297

    申请日：2012-03-15

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Toshiaki Okuno ,  Tomohiro Omure ,  Takashi Ozaki ,  Keisuke Taihaku

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Toshiaki Okuno ,  Tomohiro Omure ,  Takashi Ozaki ,  Keisuke Taihaku

    IPC分类号： H01F41/02 ,  H01F7/02

    CPC分类号： H01F41/0266 ,  B22F1/02 ,  B22F3/02 ,  B22F3/1021 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0577 ,  H01F7/02

    摘要： There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of simplifying manufacturing process and improving productivity through advanced ability to produce net shapes. In the method, magnet material is milled into magnet powder, and the magnet powder and a binder are mixed to prepare a mixture. Next, the prepared mixture is formed into a green sheet. Thereafter, the green sheet is held for predetermined time at binder decomposition temperature in non-oxidizing atmosphere, whereby depolymerization reaction or the like changes the binder into monomer and thus removes the binder. The green sheet with the binder removed therefrom undergoes pressure sintering such as SPS method so as to obtain a rare-earth permanent magnet 1.

    摘要翻译： 提供了一种稀土永磁体及其制造方法，其能够通过提高生产网状的能力简化制造工艺并提高生产率。 在该方法中，将磁体材料研磨成磁体粉末，并将磁体粉末和粘合剂混合以制备混合物。 接下来，将制备的混合物形成为生片。 此后，在非氧化性气氛中，生片在粘合剂分解温度下保持规定时间，由此解聚反应等将粘合剂变为单体，从而除去粘合剂。 从其去除粘合剂的生片进行诸如SPS法的加压烧结，以获得稀土永磁体1。

    PERMANENT MAGNET AND MANUFACTURING METHOD THEREOF
    9.
    发明申请
    PERMANENT MAGNET AND MANUFACTURING METHOD THEREOF 有权
    永磁体及其制造方法

    公开(公告)号：US20120182108A1

    公开(公告)日：2012-07-19

    申请号：US13499568

    申请日：2011-03-28

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Keisuke Hirano ,  Tomohiro Omure ,  Keisuke Taihaku ,  Takashi Ozaki

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Keisuke Hirano ,  Tomohiro Omure ,  Keisuke Taihaku ,  Takashi Ozaki

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

    CPC分类号： H01F41/0266 ,  B22F2998/10 ,  C22C33/0278 ,  C22C2202/02 ,  H01F1/0572 ,  H01F1/0577 ,  H01F1/086 ,  B22F9/04 ,  B22F1/02 ,  B22F9/22 ,  B22F2003/248 ,  B22F3/02 ,  B22F3/10

    摘要： There are provided a permanent magnet and a manufacturing method thereof capable of densely sintering the entirety of the magnet without making a gap between a main phase and a grain boundary phase in the sintered magnet. To fine powder of milled neodymium magnet is added an organometallic compound solution containing an organometallic compound expressed with a structural formula of M-(OR)x (M represents V, Mo, Zr, Ta, Ti, W or Nb, R represents a substituent group consisting of a straight-chain or branched-chain hydrocarbon, x represents an arbitrary integer) so as to uniformly adhere the organometallic compound to particle surfaces of the neodymium magnet powder. Thereafter, desiccated magnet powder is held for several hours in hydrogen atmosphere at 200 through 900 degrees Celsius. Thereafter, the powdery calcined body calcined through the calcination process in hydrogen is held for several hours in vacuum atmosphere at 200 through 600 degrees Celsius for a dehydrogenation process.

    摘要翻译： 提供了一种永磁体及其制造方法，其能够在烧结磁体中在主相和晶界相之间形成间隙而密集地烧结整个磁体。 向研磨的钕磁体的细粉末中加入含有结构式为M-（OR）x（M表示V，Mo，Zr，Ta，Ti，W或Nb的有机金属化合物）的有机金属化合物溶液，R表示取代基 由直链或支链烃构成的基团，x表示任意的整数），以使有机金属化合物均匀地附着于钕磁体粉末的粒子表面。 此后，将干燥的磁铁粉末在200-900摄氏度的氢气氛中保持数小时。 此后，通过煅烧工序在氢气中煅烧的粉状煅烧体在真空度为200〜600摄氏度的条件下在脱氢工序中保持数小时。