首页> 外国专利> procedure for the manufacture of a isotropen dauermagnetischen material; isotroper dauermagnetischer material and kunststoffgebundener isotroper permanent magnet.

procedure for the manufacture of a isotropen dauermagnetischen material; isotroper dauermagnetischer material and kunststoffgebundener isotroper permanent magnet.

机译：各向同性永磁材料的制造程序;各向同性永磁材料和塑料粘结的各向同性永磁体。

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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 DEG 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 mu m. Said powder is very suitable for use in a synthetic resin-bound isotropic permanent magnet.

机译：对包括Nd和/或Pr，Fe和C的各向同性永磁材料的制造进行描述。所述材料包括10-20原子％的Nd和/或Pr，70-85原子％的Fe。，C的含量为4-11 at。％，B的含量为0.1-2 at。％。通过在900至1050°C的温度下进行热处理，该材料具有出乎意料的高矫顽力，至少为150 kA / m 。通过磨削处理将矫顽力提高到最小500 kA / m，其中形成的粉末平均粒径为2至40μm。所述粉末非常适合用于合成树脂结合的各向同性永磁体。

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公开/公告号DE69104284D1

专利类型
公开/公告日1994-11-03

原文格式PDF
申请/专利权人 N.V. PHILIPS GLOEILAMPENFABRIEKEN EINDHOVEN NL;
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申请/专利号DE19916004284T
发明设计人 DE MOOIJ DIRK BASTIAAN NL-5656 AA EINDHOVEN NL;KEETELS HENRICUS ARNOLDUS ANTONIUS NL-5656 AA EINDHOVEN NL;EISSES JOHN NL-5656 AA EINDHOVEN NL;BUSCHOW KURT HEINZ JUERGEN NL-5656 AA EINDHOVEN NL;
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申请日1991-07-02
分类号H01F1/053;
国家 DE
入库时间 2022-08-22 04:34:42

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