发明名称 希土類永久磁石の製造方法
摘要 PROBLEM TO BE SOLVED: To provide a rare earth permanent magnet and a method of manufacturing the same, capable of preventing magnetic characteristics from being reduced.SOLUTION: A compound 12 is formed by pulverizing a magnet material into a magnet powder and mixing the pulverized powder and a binder composed of a polymer or a copolymer of a monomer including no oxygen atom. A green sheet 14 is produced by molding the formed compound 12 in a sheet-like shape. Subsequently, magnetic field orientation of the molded green sheet 14 is performed and a calcination processing is performed by holding the green sheet 14 under a non-oxidation atmosphere pressurized to a pressure higher than the atmospheric pressure at 200°C to 900°C for several hours. Next, a permanent magnet 1 is manufactured by sintering the green sheet 14 at a burning temperature.
申请公布号 JP5969783(B2) 申请公布日期 2016.08.17
申请号 JP20120054697 申请日期 2012.03.12
申请人 日東電工株式会社 发明人 久米 克也;奥野 利昭;尾関 出光;大牟礼 智弘;尾崎 孝志;太白 啓介;山本 貴士
分类号 H01F1/08;B22F3/00;B22F3/02;B22F3/10;C22C33/02;H01F1/057;H01F41/02 主分类号 H01F1/08
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