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    METHOD OF MANUFACTURING ALLOY FOR R-T-B-BASED RARE EARTH SINTERED MAGNET AND METHOD OF MANUFACTURING R-T-B-BASED RARE EARTH SINTERED MAGNET
    1.
    发明申请
    METHOD OF MANUFACTURING ALLOY FOR R-T-B-BASED RARE EARTH SINTERED MAGNET AND METHOD OF MANUFACTURING R-T-B-BASED RARE EARTH SINTERED MAGNET 审中-公开
    制造R-T-B系稀土烧结磁体的合金方法及制造R-T-B系稀土烧结磁铁的方法

    公开(公告)号：US20160012946A1

    公开(公告)日：2016-01-14

    申请号：US14789495

    申请日：2015-07-01

    Applicant: SHOWA DENKO K.K.

    Inventor： Masaki HORIKITA ,  Takashi YAMAZAKI ,  Kenichiro NAKAJIMA

    IPC: H01F1/057 ,  B22F9/08 ,  H01F41/02 ,  B22F9/02

    CPC classification number: H01F1/0573 ,  B22F9/023 ,  B22F9/08 ,  C22C33/0278 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0266

    Abstract: Provided is a method of manufacturing an alloy for an R-T-B-based rare earth sintered magnet, with which an R-T-B-based magnet having high coercive force can be obtained even when the B concentration is low and the Dy concentration is zero or extremely low.This method includes: a casting step of manufacturing a cast alloy by casting a molten alloy, a hydrogenating step of absorbing hydrogen in the cast alloy; and a dehydrogenating step of removing hydrogen from the cast alloy absorbing hydrogen in an inert gas atmosphere at a temperature lower than 550° C., wherein the molten alloy consists of B, a rare earth element R, a transition metal T essentially containing Fe, a metal element M, and unavoidable impurities, in which the R content is 13 at % to 15.5 at %, the B content is 5.0 at % to 6.0 at %, the M content is 0.1 at % to 2.4 at %, the T content is a balance, a ratio of a Dy content to the total content of the rare earth element is 0 at % to 65 at %, and the molten alloy satisfies the below formula (1). 0.32≦B/TRE≦0.40  (1).

    Abstract translation: 提供一种制造用于R-T-B系稀土烧结磁体的合金的方法，即使当B浓度低，Dy浓度为零或极低时，也可以获得具有高矫顽力的R-T-B系磁体。 该方法包括：通过铸造熔融合金制造铸造合金的铸造步骤，在铸造合金中吸氢的氢化步骤; 以及在低于550℃的温度下在惰性气体气氛中从铸造合金中除去氢的脱氢步骤，其中熔融合金由B组成，稀土元素R，基本上含有Fe的过渡金属T， 金属元素M和不可避免的杂质，其中R含量为13原子％至15.5原子％，B含量为5.0原子％至6.0原子％，M含量为0.1原子％至2.4原子％，T含量 是余量，Dy含量与稀土元素的总含量的比例为0at％〜65at％，熔融合金满足下式（1）。 0.32＆nlE; B / TRE＆nlE; 0.40（1）。

    PROCESS FOR PRODUCING CATALYST CARRIER, PROCESS FOR PRODUCING COMPOSITE CATALYST, COMPOSITE CATALYST, AND FUEL CELL USING SAME
    2.
    发明申请
    PROCESS FOR PRODUCING CATALYST CARRIER, PROCESS FOR PRODUCING COMPOSITE CATALYST, COMPOSITE CATALYST, AND FUEL CELL USING SAME 有权
    生产催化剂载体的方法，生产复合催化剂的方法，复合催化剂和使用该催化剂的燃料电池

    公开(公告)号：US20130302715A1

    公开(公告)日：2013-11-14

    申请号：US13946531

    申请日：2013-07-19

    Applicant: SHOWA DENKO K.K.

    Inventor： Masaki HORIKITA ,  Kunchan LEE ,  Ryuji MONDEN ,  Chunfu YU ,  Yasuaki WAKIZAKA ,  Takashi SATO ,  Yoshinori ABE

    IPC: H01M4/90

    CPC classification number: H01M4/8817 ,  H01M4/8803 ,  H01M4/8882 ,  H01M4/8885 ,  H01M4/9008 ,  H01M4/9041 ,  H01M4/9075 ,  H01M4/921 ,  H01M4/925 ,  H01M8/1011 ,  Y02E60/50 ,  Y02E60/523 ,  Y02P70/56

    Abstract: A catalyst carrier production process includes a step (a) of mixing a transition metal compound (1), a nitrogen-containing organic compound (2), and a solvent to provide a catalyst carrier precursor solution; a step (b) of removing the solvent from the catalyst carrier precursor solution; and a step (c) of thermally treating a solid residue obtained in the step (b) at a temperature of 500 to 1100° C. to provide a catalyst carrier; wherein the transition metal compound (1) is partly or wholly a compound including a transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element; and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) includes an oxygen atom.

    Abstract translation: 催化剂载体的制造方法包括将过渡金属化合物（1），含氮有机化合物（2）和溶剂混合的步骤（a），以提供催化剂载体前体溶液; 从催化剂载体前体溶液中除去溶剂的步骤（b）; 以及在500〜1100℃的温度下热处理步骤（b）中得到的固体残渣以提供催化剂载体的步骤（c） 其中过渡金属化合物（1）部分或全部是包含选自元素周期表第4族和第5族元素的过渡金属元素（M1）作为过渡金属元素的化合物; 并且过渡金属化合物（1）和含氮有机化合物（2）中的至少一种包含氧原子。

    R-T-B-BASED RARE EARTH SINTERED MAGNET AND METHOD OF MANUFACTURING SAME
    3.
    发明申请
    R-T-B-BASED RARE EARTH SINTERED MAGNET AND METHOD OF MANUFACTURING SAME 审中-公开
    基于R-T-B的大地烧结磁体及其制造方法

    公开(公告)号：US20160284452A1

    公开(公告)日：2016-09-29

    申请号：US15075757

    申请日：2016-03-21

    Applicant: SHOWA DENKO K.K.

    Inventor： Masaki HORIKITA ,  Kenichiro NAKAJIMA ,  Akifumi MURAOKA

    IPC: H01F1/053 ,  C22C38/00 ,  B22F3/24 ,  B22F3/10 ,  H01F41/02 ,  C21D9/00

    CPC classification number: C22C38/005 ,  B22F3/24 ,  B22F2998/10 ,  C21D9/00 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0266 ,  B22F3/10 ,  B22F2003/248

    Abstract: An R-T-B-based rare earth sintered magnet comprising: a rare earth element R, B, a metallic element M which includes one or more metals selected from Al, Ga and Cu, a transition metal T which includes Fe as a main component and inevitable impurities, wherein the sintered magnet includes: 13 to 15.5 atom % of R, 5.0 to 6.0 atom % of B, 0.1 to 2.4 atom % of M, and T and the inevitable impurities as a balance, and wherein the sintered magnet includes more than 0 atom % and 0.01 atom % or less of Tb as the rare earth element R.

    Abstract translation: 一种RTB系稀土烧结磁体，其特征在于，含有：稀土类元素R，B，含有选自Al，Ga，Cu中的一种以上的金属的金属元素M，以Fe为主成分的过渡金属T和不可避免的杂质 其特征在于，所述烧结磁体包括：13〜15.5原子％的R，5.0〜6.0原子％的B，0.1〜2.4原子％的M，以及T和余量的不可避免的杂质，其中，所述烧结磁体包含大于0 原子％和0.01原子％以下的Tb作为稀土元素R.

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