发明名称 METHOD FOR MANUFACTURING DIVIDED MAGNET
摘要 PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered magnet, with which a material yield of a magnet is improved when configured by dividing the magnet.SOLUTION: A method for manufacturing a sintered magnet M used as a magnetic pole for a rotor core 100 includes: forming a green compact in which magnetic powder is compressedly formed by performing press molding of magnetic powder constituting a R-Fe-B-based sintered magnet that is composed mainly of Nd and contains a rare earth element R; molding a plurality of magnet pieces M1 to M4 constituting the sintered magnet by sintering the green compact under a situation of being heated to a sintering temperature; and correcting sizes of the magnetic pieces by disposing the magnetic pieces in a molding die 214 that molds them as a group under a situation of being heated to a temperature not exceeding the sintering temperature, and then performing pressure molding in a state in which the magnetic pieces are contacted with one another.
申请公布号 JP2015207673(A) 申请公布日期 2015.11.19
申请号 JP20140087734 申请日期 2014.04.21
申请人 NISSAN MOTOR CO LTD 发明人 MATSUNAE HIROKI;FUJIKAWA SHINICHIRO;IKEDA AKIHIKO;SAKO MICHIO
分类号 H01F41/02;B22F3/00;B22F3/24;C22C33/02;H01F1/057;H01F1/08 主分类号 H01F41/02
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