公开(公告)号：US10269476B2

公开(公告)日：2019-04-23

申请号：US15513991

申请日：2015-09-24

申请人： HITACHI METALS, LTD.

发明人： Hitoshi Kodama ,  Kengo Takahashi ,  Daichi Azuma

IPC分类号： H01F7/06 ,  H01F1/153 ,  C22C45/02 ,  H01F3/04 ,  H01F41/02 ,  H01F27/25

摘要： An amorphous alloy magnetic core including a layered body in which amorphous alloy thin strips are layered one on another, the layered body having one end face and another end face in a width direction of the amorphous alloy thin strips, an inner peripheral surface and an outer peripheral surface orthogonal to a layering direction of the amorphous alloy thin strips, and a hole passing through from a part of the one end face as a starting point, the width direction corresponding to a depth direction of the hole.

公开(公告)号：US11244782B2

公开(公告)日：2022-02-08

申请号：US16284731

申请日：2019-02-25

申请人： HITACHI METALS, LTD.

发明人： Hitoshi Kodama ,  Kengo Takahashi ,  Daichi Azuma

IPC分类号： H01F27/25 ,  H01F3/04 ,  H01F1/153 ,  C22C45/02 ,  H01F41/02

摘要： An amorphous alloy magnetic core including a layered body in which amorphous alloy thin strips are layered one on another, the layered body having one end face and another end face in a width direction of the amorphous alloy thin strips, an inner peripheral surface and an outer peripheral surface orthogonal to a layering direction of the amorphous alloy thin strips, and a hole passing through from a part of the one end face as a starting point, the width direction corresponding to a depth direction of the hole.

公开(公告)号：US10283265B2

公开(公告)日：2019-05-07

申请号：US15513990

申请日：2015-09-24

申请人： HITACHI METALS, LTD.

发明人： Hitoshi Kodama ,  Kengo Takahashi ,  Daichi Azuma

IPC分类号： H01F41/02 ,  H01F1/153 ,  H01F27/25 ,  H01F3/04

摘要： A method of manufacturing an amorphous alloy magnetic core, which includes preparing a layered body by layering amorphous alloy thin strips one on another, and has one end face and another end face in a width direction of the thin strips and an inner peripheral surface and an outer peripheral surface orthogonal to a layering direction of the thin strips; forming a hole passing through from the one end face of the layered body as a starting point; subjecting the layered body to which the hole has been formed to a heat treatment while measuring an internal temperature of the hole; and forming a resin layer which blocks the hole and covers at least a part of the one end face by coating and curing a two-liquid mixed type epoxy resin composition having a viscosity of from 38 Pa·s to 51 Pa·s and a T. I. value of from 1.6 to 2.7 on at least a part of at least the one end face of the layered body after being subjected to the heat treatment.