Title:
MANUFACTURING METHOD FOR SOFT MAGNETIC SHEET
Document Type and Number:
Japanese Patent JP2020095998
Kind Code:
A
Abstract:
To provide a manufacturing method for a soft magnetic sheet that can reduce surface irregularities and thin the thickness even when cracking is performed to achieve a predetermined μ'.SOLUTION: In a manufacturing method for a soft magnetic sheet, a resin film is attached to a soft magnetic ribbon made of a nanocrystalline alloy to form a laminate 7, and an external force is applied to at least one surface of the laminate by a cracking roll 10 to form a plurality of cracks in the soft magnetic ribbon. After that, at least one surface of the laminate is subjected to a flattening step of applying pressure with a pressure roll. The flattening step is repeated three times or more.SELECTED DRAWING: Figure 5
Inventors:
HAGIWARA KAZUHIRO
Application Number:
JP2018230597A
Publication Date:
June 18, 2020
Filing Date:
December 10, 2018
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
H01F41/02; B29D7/01; B32B15/08; H01F1/153; H01F1/18
Domestic Patent References:
| JP2015505166A | 2015-02-16 | |||
| JP2011134959A | 2011-07-07 | |||
| JP2008112830A | 2008-05-15 | |||
| JPH03158442A | 1991-07-08 | |||
| JP2018164053A | 2018-10-18 |
Foreign References:
| WO2017061773A1 | 2017-04-13 |