发明名称 |
MNBI-BASED MAGNETIC SUBSTANCE, PREPARATION METHOD THEREOF, MNBI-BASED SINTERED MAGNET AND PREPARATION METHOD THEREOF |
摘要 |
The method of preparing an MnBi-based magnetic substance according to the present invention includes: (a) preparing a mixed melt by simultaneously melting a manganese-based material and a bismuth-based material; (b) forming a non-magnetic MnBi-based ribbon by cooling the mixed melt; and (c) converting the non-magnetic MnBi-based ribbon into a magnetic MnBi-based ribbon by performing a heat treatment. The method for preparing an MnBi-based sintered magnet includes: (a) preparing a magnetic powder by pulverizing the MnBi-based magnetic substance; (b) molding the magnetic powder in a state where a magnetic field is applied; and (c) sintering the molded magnetic powder. |
申请公布号 |
US2016035487(A1) |
申请公布日期 |
2016.02.04 |
申请号 |
US201514741105 |
申请日期 |
2015.06.16 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
KIM Jinbae;BYUN Yangwoo |
分类号 |
H01F41/02;C22C12/00;C22C1/04;H01F1/08;B22F3/12;B22F9/04;H01F1/047;C22F1/16;C22C1/02 |
主分类号 |
H01F41/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method of preparing an MnBi-based magnetic substance, the method comprising:
(a) simultaneously melting a manganese-based material and a bismuth-based material to prepare a mixed melt; (b) cooling the mixed melt to form a non-magnetic MnBi-based ribbon; and (c) performing a heat treatment to convert the non-magnetic MnBi-based ribbon into a magnetic MnBi-based ribbon. |
地址 |
Seoul KR |