公开(公告)号：US20160314882A1

公开(公告)日：2016-10-27

申请号：US15153199

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Jinbae KIM ,  Yangwoo BYUN

IPC: H01F1/057 ,  H01F1/059 ,  H01F41/02 ,  H01F1/053

Abstract: The present invention relates to an anisotropic complex sintered magnet including MnBi with magnetic characteristics enhanced and an atmospheric sintering method for preparing the same. The anisotropic complex sintered magnet including MnBi according to the present invention may implement excellent magnetic characteristics, and thus may replace rare earth bond magnets in the related art, and a continuous process is enabled because the magnet is prepared by an atmospheric sintering method, and a sintering method used in the permanent magnet process in the related art is used as it is, so that the anisotropic complex sintered magnet is economical.

Abstract translation: 本发明涉及包含具有磁特性的MnBi的各向异性复合烧结磁体及其制备方法。 包括根据本发明的MnBi的各向异性复合烧结磁体可以实现优异的磁特性，并且因此可以替代现有技术中的稀土键磁体，并且由于磁体是通过大气烧结法制备的，所以可以进行连续的工艺， 直接使用现有技术的永久磁铁工艺中使用的烧结方法，因此各向异性复合烧结磁体是经济的。

公开(公告)号：US20160168660A1

公开(公告)日：2016-06-16

申请号：US14837800

申请日：2015-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinbae KIM ,  Yangwoo BYUN ,  Sanggeun CHO

IPC: C22C12/00 ,  H01F1/059 ,  B22F1/00 ,  B22F3/16 ,  B22D11/00 ,  B22F3/105 ,  B22F3/15 ,  B22F3/14 ,  B22F9/04 ,  C22F1/16 ,  H01F1/055 ,  B22F3/087

CPC classification number: C22C12/00 ,  B22D11/001 ,  B22F1/0003 ,  B22F1/0059 ,  B22F3/087 ,  B22F3/105 ,  B22F3/14 ,  B22F3/15 ,  B22F3/16 ,  B22F9/04 ,  B22F2003/1051 ,  B22F2003/1054 ,  B22F2009/043 ,  B22F2301/00 ,  B22F2301/30 ,  B22F2301/355 ,  B22F2301/45 ,  B22F2303/01 ,  B22F2304/10 ,  C22F1/16 ,  H01F1/0557 ,  H01F1/0577 ,  H01F1/059 ,  H01F41/0266 ,  H01F41/0273

Abstract: The present invention relates to a method of preparing an anisotropic complex sintered magnet having MnBi, that includes: (a) preparing a non-magnetic phase MnBi-based ribbon by a rapidly solidification process (RSP); (b) heat treating the non-magnetic phase MnBi-based ribbon to convert the non-magnetic phase MnBi-based ribbon into a magnetic phase MnBi-based ribbon; (c) grinding the magnetic phase MnBi-based ribbon to form a MnBi hard magnetic phase powder; (d) mixing the MnBi hard magnetic phase powder with a rare-earth hard magnetic phase powder; (e) magnetic field molding the mixture obtained in step (d) by applying an external magnetic field to form a molded article; and (f) sintering the molded article.

Abstract translation: 本发明涉及一种制备具有MnBi的各向异性复合烧结磁体的方法，其包括：（a）通过快速凝固过程（RSP）制备非磁性MnBi系带; （b）热处理非磁性相MnBi基带以将非磁性相MnBi基带转变为基于MnBi的磁性带; （c）研磨磁性MnBi基带以形成MnBi硬磁相粉末; （d）将MnBi硬磁性相粉末与稀土类硬磁性粉末混合; （e）通过施加外部磁场对步骤（d）中获得的混合物进行磁场成型以形成模制品; 和（f）烧结模制品。

公开(公告)号：US20160035487A1

公开(公告)日：2016-02-04

申请号：US14741105

申请日：2015-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Jinbae KIM ,  Yangwoo BYUN

IPC: H01F41/02 ,  C22C12/00 ,  C22C1/04 ,  H01F1/08 ,  B22F3/12 ,  B22F9/04 ,  H01F1/047 ,  C22F1/16 ,  C22C1/02

CPC classification number: H01F41/0266 ,  B22F3/12 ,  B22F9/04 ,  B22F2009/043 ,  C22C1/02 ,  C22C1/04 ,  C22C12/00 ,  C22F1/16 ,  H01F1/047 ,  H01F1/086

Abstract: 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.

Abstract translation: 制备本发明的MnBi系磁性物质的方法包括：（a）通过同时熔融锰基材料和铋基材料来制备混合熔体; （b）通过冷却混合熔体形成非磁性MnBi系带; 和（c）通过进行热处理将非磁性MnBi基带转变成磁性MnBi基带。 制备MnBi系烧结磁体的方法包括：（a）通过粉碎MnBi系磁性物质制备磁性粉末; （b）在施加磁场的状态下成型磁粉; 和（c）烧结成型的磁性粉末。