-
公开(公告)号：US11682506B2
公开(公告)日：2023-06-20
申请号：US16951729
申请日：2020-11-18
发明人： Do Hoon Kim , Hyung Ju Lee , Jae Hyuk Jang , Young Beom Kim , Dong Hwan Kim , Koon Seung Kong
CPC分类号： H01F1/0577 , B22F3/10 , B22F3/24 , B22F9/04 , C22C38/002 , C22C38/005 , H01F41/0266 , B22F2009/044 , B22F2301/355 , C22C2202/02
摘要： Disclosed are a rare-earth permanent magnet having improved magnetic properties and a method of manufacturing the same.
A method of manufacturing a rare-earth permanent magnet may include: preparing a mixed powder including i) a first alloy represented by R1aR2bBcMdFebal and ii) a second alloy represented by R2bBcMdFebal where R1 is one or two or more of La, Ce, and Y; R2 is a rare-earth element except for La, Ce, and Y; and M is a metal element; press-forming and sintering the prepared mixed powder in a magnetic field to prepare a sintered body; and performing a heat treatment based on diffusion temperature conditions of an R1 component and an R2 component contained in the prepared sintered body.-
公开(公告)号：US20210319935A1
公开(公告)日：2021-10-14
申请号：US16951729
申请日：2020-11-18
发明人： Do Hoon Kim , Hyung Ju Lee , Jae Hyuk Jang , Young Beom Kim , Dong Hwan Kim , Koon Seung Kong
摘要： Disclosed are a rare-earth permanent magnet having improved magnetic properties and a method of manufacturing the same.
A method of manufacturing a rare-earth permanent magnet may include: preparing a mixed powder including i) a first alloy represented by R1aR2bBcMdFebal and ii) a second alloy represented by R2bBcMdFebal where R1 is one or two or more of La, Ce, and Y; R2 is a rare-earth element except for La, Ce, and Y; and M is a metal element; press-forming and sintering the prepared mixed powder in a magnetic field to prepare a sintered body; and performing a heat treatment based on diffusion temperature conditions of an R1 component and an R2 component contained in the prepared sintered body.-
公开(公告)号：US20240006099A1
公开(公告)日：2024-01-04
申请号：US18140853
申请日：2023-09-22
发明人： Do Hoon KIM , Hyung Ju Lee , Jae Hyuk Jang , Young Beom Kim , Dong Hwan Kim , Koon Seung Kong
CPC分类号： H01F1/0577 , H01F41/0266 , B22F3/10 , B22F3/24 , C22C38/005 , C22C38/002 , B22F9/04 , B22F2009/044 , C22C2202/02 , B22F2301/355
摘要： Disclosed are a rare-earth permanent magnet having improved magnetic properties and a method of manufacturing the same.
A method of manufacturing a rare-earth permanent magnet may include: preparing a mixed powder including i) a first alloy represented by R1aR2bBcMdFebal and ii) a second alloy represented by R2bBcMdFebal where R1 is one or two or more of La, Ce, and Y; R2 is a rare-earth element except for La, Ce, and Y; and M is a metal element; press-forming and sintering the prepared mixed powder in a magnetic field to prepare a sintered body; and performing a heat treatment based on diffusion temperature conditions of an R1 component and an R2 component contained in the prepared sintered body.
-
-
搜索结果
3 条记录 (耗时 0.032 秒)
