Title:
Ｆｅ基アモルファス合金薄帯及びその製造方法、鉄心、並びに変圧器
Document Type and Number:
Japanese Patent JP6874886
Kind Code:
B2
Abstract:
One aspect of the invention provides an Fe-based amorphous alloy ribbon having a free solidified surface and a roll contact surface, in which the Fe-based amorphous alloy ribbon has plural laser irradiation mark rows each formed from plural laser irradiation marks on at least one surface of the free solidified surface or the roll contact surface, a line interval is from 10 mm to 60 mm, which is a centerline interval in a middle section in a width direction, between mutually adjacent laser irradiation mark rows of plural such laser irradiation mark rows arranged in a casting direction of the Fe-based amorphous alloy ribbon, the width direction being orthogonal to the casting direction, a spot interval is from 0.10 mm to 0.50 mm, which is an interval between center points of the plural laser irradiation marks in each of the plural laser irradiation mark rows, and the number density D (= (1/d1) × (1/d2), d1: line interval, d2: spot interval) of the laser irradiation marks is from 0.05 marks/mm2 to 0.50 marks/mm2.
Inventors:
Itagaki Hajime
Motoki Ota
Kurofumi Morifumi
Jun Sasaki
Motoki Ota
Kurofumi Morifumi
Jun Sasaki
Application Number:
JP2020067083A
Publication Date:
May 19, 2021
Filing Date:
April 02, 2020
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
H01F1/153; C22C45/02; H01F27/25; H01F30/10
Domestic Patent References:
| JP61029103A | ||||
| JP2014142204A1 | ||||
| JP2012102379A1 | ||||
| JP4367202A | ||||
| JP57097606A | ||||
| JP2012031498A |
Foreign References:
| WO2011030907A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda