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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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