发明名称 MANUFACTURING METHOD OF ANISOTROPIC INJECTION MOLDING MAGNET AND INJECTION MOLDING MAGNET OBTAINED THEREBY
摘要 <P>PROBLEM TO BE SOLVED: To provide the manufacturing method of an anisotropic injection molding magnet, not only excellent in magnetic characteristics by improving the orientation of a magnet but also capable of reducing varieties in the characteristics, and an injection molding magnet obtained thereby. <P>SOLUTION: In the manufacturing method of the anisotropic injection molding magnet wherein a magnetic compound, containing a magnet powder and a resin binder, is molten and injected into the cavity of an injection molding mold applied with a magnetic field for orientation, the magnetic compound is injected under the condition that the injection rate of the molten magnetic compound per one cavity is not less than 15 cm<SP>3</SP>/s and the rise-up time of the injection rate is not more than 0.01 sec. <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004111640(A) 申请公布日期 2004.04.08
申请号 JP20020271988 申请日期 2002.09.18
申请人 SUMITOMO METAL MINING CO LTD 发明人 KAWAMOTO ATSUSHI
分类号 B29C45/46;B22F3/00;B22F3/02;B29C45/76;B29K103/06;B29L31/00;C22C19/00;C22C38/00;H01F1/053;H01F1/08;H01F1/113;H01F41/02 主分类号 B29C45/46
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