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    Method of manufacturing an isotropic permanently magnetic material, isotropic permanently magnetic material and synthetic resin-bound isotropic permanent magnet
    2.
    发明公开
    Method of manufacturing an isotropic permanently magnetic material, isotropic permanently magnetic material and synthetic resin-bound isotropic permanent magnet 失效
    制造的各向同性永磁材料的方法; 各向同性永磁材料和塑料粘合的各向同性永磁体。

    公开(公告)号：EP0466246A1

    公开(公告)日：1992-01-15

    申请号：EP91201692.0

    申请日：1991-07-02

    申请人： Philips Electronics N.V.

    发明人： De Mooij, Dirk Bastiaan ,  Keetels, Henricus Arnoldus Antonius ,  Eisses, John ,  Buschow, Kurt Heinz Jürgen

    IPC分类号： H01F1/053

    CPC分类号： H01F1/058

    摘要： A description is given of the manufacture of an isotropic, permanently magnetic material which comprises Nd and/or Pr, Fe and C. Said material comprises 10-20 at.% of Nd and/or Pr, 70-85 at.% of Fe, 4-11 at.% of C and 0.1-2 at.% of B. By virtue of a thermal treatment at a temperature between 900 and 1050°C, the material has an unexpectedly high coercive force of at least 150 kA/m. The coercive force is increased to minimally 500 kA/m by a grinding treatment in which a powder is formed having an average particle size of 2 to 40 µm. Said powder is very suitable for use in a synthetic resin-bound isotropic permanent magnet.

    摘要翻译： 下面，说明制造各向同性的，永磁材料，它包括Nd和/或Pr，Fe和C.所述材料原子％点ND和/或Pr，70〜85包含10-20原子％的Fe的 ，4-11在。％的C和0.1〜2原子％的B.凭借在900和1050℃之间的温度下的热处理的，该材料具有至少150千安/米出乎意料高的矫顽力 ， 矫顽力增加了研磨处理在具有上2至40微米的平均颗粒尺寸被形成的粉末，以最低限度地500千安/米。 所述粉末是非常适合于在合成树脂粘合的各向同性永磁体的用途。

    Method of manufacturing a permanent magnet on the basis of NdFeB
    3.
    发明公开
    Method of manufacturing a permanent magnet on the basis of NdFeB 失效
    Verfahren zum Herstellen eines Dauermagneten auf Basis von NdFeB。

    公开(公告)号：EP0583041A1

    公开(公告)日：1994-02-16

    申请号：EP93202359.1

    申请日：1993-08-11

    申请人： Philips Electronics N.V.

    发明人： Buschow, Kurt Heinz Jürgen ,  Feijen, Franciscus Hubertus ,  De Mooij, Dirk Bastiaan ,  Noordermeer, Arjan

    IPC分类号： H01F1/053

    CPC分类号： B22F1/0003 ,  H01F1/0577

    摘要： A description is given of a method of manufacturing a permanent magnet on the basis of NdFeB. In this method a powder of NdFeB and a powder of a Ga alloy, consisting mainly of Ga and one or more than one rare earth metals (RE), is mixed to form a mixture which is subsequently aligned, compressed and sintered. Such alloys can be ground into homogeneous, fine-grain powders in a simple manner. The composition of the alloy preferably corresponds to the formula REGa x , where x = 1 or x = 2. Alloys which are very suitable contain Dy and/or Tb as the rare earth metal.

    摘要翻译： 以NdFeB为基础制造永久磁铁的方法进行说明。 在该方法中，将主要由Ga和一种或多于一种稀土金属（RE）组成的NdFeB粉末和Ga合金粉末混合，形成随后对准，压缩和烧结的混合物。 这种合金可以以简单的方式研磨成均匀的细粒粉末。 合金的组成优选对应于式RA x x，其中x = 1或x = 2。非常合适的合金含有Dy和/或Tb作为稀土金属。

    Hard magnetic material of a rare earth metal, iron and carbon
    4.
    发明公开
    Hard magnetic material of a rare earth metal, iron and carbon 失效
    Hartmagnetmaterial aus einem Seltenerdmetall，Eisen und Kohlenstoff。

    公开(公告)号：EP0320064A1

    公开(公告)日：1989-06-14

    申请号：EP88202784.0

    申请日：1988-12-05

    申请人： Philips Electronics N.V.

    发明人： De Mooij, Dirk Bastiaan ,  Buschow, Kurt Heinz Jürgen

    IPC分类号： H01F1/04

    CPC分类号： H01F1/058

    摘要： A hard magnetic material having the substantially stoichiometric composition Nd₂Fe₁₄C. It can be obtained by casting and subsequently recrystallization annealing at a temperature between 840 and 890° C. A part of Fe may be substituted by Co. In this case the magnetic material is obtained by casting and subsequently recrystallization annealing at a temperature of approximately 850° C.

    摘要翻译： 具有基本上化学计量组成Nd 2 Fe 14 C的硬磁性材料。 可以通过在840〜890℃的温度下进行铸造和随后的再结晶退火得到.Fe的一部分可以被Co取代。在这种情况下，磁性材料通过铸造获得，随后在约850℃的温度下重结晶退火 DEG C.

    Hard magnetic material
    6.
    发明公开
    Hard magnetic material 失效
    Hartmagnetwerkstoff。

    公开(公告)号：EP0334445A1

    公开(公告)日：1989-09-27

    申请号：EP89200693.3

    申请日：1989-03-20

    申请人： Philips Electronics N.V.

    发明人： De Mooij, Dirk Bastiaan ,  Buschow, Kurt Heinz Jürgen

    IPC分类号： H01F1/04

    CPC分类号： H01F1/058

    摘要： A hard magnetic material having the composition RE₂Fe 14-x Mn x C, wherein RE is at least one element selected from the group formed by Nd, Pr, Ce and La, and wherein 0.2 ≦ x ≦ 2.

    摘要翻译： 具有RE2Fe14-xMnxC组成的硬磁性材料，其中RE为选自Nd，Pr，Ce和La中的至少一种元素，其中0.2≤x≤2。

    Starting material for permanent magnets
    7.
    发明公开
    Starting material for permanent magnets 失效
    澳大利亚材料公司Dauermagneten。

    公开(公告)号：EP0304113A1

    公开(公告)日：1989-02-22

    申请号：EP88201675.1

    申请日：1988-08-03

    申请人： Philips Electronics N.V.

    发明人： De Mooij, Dirk Bastiaan ,  Van Mens, Reinoud ,  Buschow, Kurt Heinz Jürgen

    IPC分类号： H01F1/04

    CPC分类号： H01F1/058

    摘要： Hard-magnetic materials having a high crystal anisotropy on a carbide basis of the general formula (RE 1-x Nd x ) Fe₁₄C, wherein
    RE is a rare earth metal having an atomic number exceeding 61 and 0.50 ≦ x ≦ 0.80 have a comparatively high Curie-­temperature.

    摘要翻译： 具有通式（RE1-xNdx）Fe14C的碳化物具有高晶体各向异性的硬磁性材料，其中RE是原子序数超过61且0.50≤x≤0.80的稀土金属具有相对的 居里温度高。