Title:
Ferromagnetic amorphous alloy ribbons and those manufactures
Document Type and Number:
Japanese Patent JP6077445
Kind Code:
B2
Abstract:
A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5≰a≰83 at. %, 0.5≰b≰6 at. %, 12≰c≰16.5 at. %, 0.01≰d≰1 at. % with a+b+c+d=100 and incidental impurities, the defect length along a direction of the ribbon's length being between 5 mm and 200 mm, the defect depth being less than 0.4×t μm and the defect occurrence frequency being less than 0.05×w times within 1.5 m of ribbon length, where t and w are ribbon thickness and ribbon width, respectively, and the ribbon in its annealed state and straight strip form of the ribbon, has a saturation magnetic induction exceeding 1.60 T, and exhibits a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level. The ribbon is suitable for use in transformer cores, rotational machines, electrical chokes, magnetic sensors and pulse power devices.
Inventors:
Yuichi Ogawa
Eric Sen, Sayssen
Yuji Matsumoto
Perez, james
Hasegawa, Ryusuke
Eric Sen, Sayssen
Yuji Matsumoto
Perez, james
Hasegawa, Ryusuke
Application Number:
JP2013527186A
Publication Date:
February 08, 2017
Filing Date:
August 30, 2011
Export Citation:
Assignee:
Methograss Incorporated
Hitachi Metals Co., Ltd.
Hitachi Metals Co., Ltd.
International Classes:
C22C45/02; B22D11/06; H01F1/153; H01F27/24
Domestic Patent References:
| JP11302823A | ||||
| JP2000328206A | ||||
| JP2000054089A | ||||
| JP61024208A |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Morishita Azusa
Yasushi Kobayashi
Hiroyuki Tomita
Osamu Hoshino
Morishita Azusa