| 发明名称 |
METHOD FOR MANUFACTURING MAGNETIC GRAIN COMPACT |
| 摘要 |
A method for manufacturing a magnetic grain compact, includes: providing multiple metal grains constituted by soft magnetic alloy containing Fe, Si, and a metal element M that oxidizes more easily than Fe; compacting the metal grains; and forming oxide film formed on a surface of the metal grains, and forming first bonding parts where adjacent metal grains are directly contacted and bonded together, and second bonding parts where adjacent metal grains are bonded together via the oxide film formed around the entire surface of said adjacent metal grains other than the first bonding parts, by applying heat treatment to the compacted metal grains, thereby obtaining a magnetic grain compact. |
| 申请公布号 |
US2016163448(A1) |
申请公布日期 |
2016.06.09 |
| 申请号 |
US201615040534 |
申请日期 |
2016.02.10 |
| 申请人 |
TAIYO YUDEN CO., LTD. |
发明人 |
MATSUURA Hitoshi;OTAKE Kenji |
| 分类号 |
H01F41/02;H01F1/24;H01F1/147 |
主分类号 |
H01F41/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for manufacturing a magnetic grain compact, comprising:
providing multiple metal grains constituted by soft magnetic alloy containing Fe, Si, and a metal element M that oxidizes more easily than Fe; compacting the metal grains; and forming oxide film on a surface of the metal grains, and forming first bonding parts where adjacent metal grains are directly contacted and bonded together by metal bonding, and second bonding parts where adjacent metal grains are bonded together by bonding of the oxide film formed around the entire surface of said adjacent metal grains other than the first bonding parts, by applying heat treatment to the compacted metal grains, thereby obtaining a magnetic grain compact. |
| 地址 |
Tokyo JP |
