Title:
HEAT TREATMENT METHOD FOR AMORPHOUS ALLOY RIBBON AND HEAT TREATMENT APPARATUS FOR AMORPHOUS ALLOY RIBBON
Document Type and Number:
WIPO Patent Application WO/2022/065370
Kind Code:
A1
Abstract:
The present invention provides a heat treatment method and a heat treatment apparatus for an amorphous alloy ribbon, said method and apparatus being capable of uniformly heat treating an amorphous alloy ribbon, while suppressing the occurrence of anisotropy in the magnetic characteristics. A heat treatment method for an amorphous alloy ribbon, said method comprising a step wherein an amorphous alloy ribbon is transferred, while being in contact with a heated projected surface, and the amorphous alloy ribbon is transferred, while having the part that is in contact with the projected surface pressed against the projected surface from a surface which is on the reverse side of the surface that is in contact with the projected surface.
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Inventors:
SANO HIROHISA (JP)
FUKUYAMA TAKESHI (JP)
FUKUYAMA TAKESHI (JP)
Application Number:
PCT/JP2021/034822
Publication Date:
March 31, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
C21D6/00; H01F1/153
Domestic Patent References:
| WO2017150440A1 | 2017-09-08 |
Foreign References:
| JPS5483622A | 1979-07-03 | |||
| KR20140059487A | 2014-05-16 | |||
| US5069428A | 1991-12-03 | |||
| JP2013511617A | 2013-04-04 |
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