Title:
WOUND CORE
Document Type and Number:
WIPO Patent Application WO/2022/092112
Kind Code:
A1
Abstract:
This wound core comprises a wound core body in which multiple polygonal ring-shaped grain-oriented electromagnetic steel plates are laminated in a side view, wherein: flat sections and bent sections of the grain-oriented electromagnetic steel plates alternately continue in a longitudinal direction; and provided that in a flat section in the vicinity of at least one bent section, a three-dimensional crystal misorientation between two adjoining points in a sequence of points arranged at regular intervals in an extending direction of the bent section is defined as φ, the total number of measured data of φ as Nx, the number of data satisfying φ ≥ 1.0˚ as Nt, the number of data satisfying φ being 1.0˚ to less than 2.5˚ as Na, the number of data satisfying φ being 2.5˚ to less than 4.0˚ as Nb, and the number of data satisfying φ being 4.0˚ or greater as Nc, the following formulas (1) to (4) are satisfied. (1): 0.10 ≤ Nt/Nx ≤ 0.80
(2): 0.37 ≤ Nb/Nt ≤ 0.80
(3): 1.07 ≤ Nb/Na ≤ 4.00
(4): Nb/Nc ≥ 1.10
Inventors:
MIZUMURA TAKAHITO (JP)
Application Number:
PCT/JP2021/039548
Publication Date:
May 05, 2022
Filing Date:
October 26, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; C22C38/02; C22C38/60; H01F1/147; H01F27/245
Foreign References:
| JP2018148036A | 2018-09-20 | |||
| JPH1143746A | 1999-02-16 | |||
| JP2020179267A | 2020-11-05 | |||
| JP2001192785A | 2001-07-17 | |||
| JP2005240079A | 2005-09-08 | |||
| JP2012052229A | 2012-03-15 | |||
| JP2005286169A | 2005-10-13 | |||
| JP6224468B2 | 2017-11-01 | |||
| JP2018148036A | 2018-09-20 | |||
| AU2012337260A1 | 2014-05-22 |
Other References:
See also references of EP 4234727A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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