NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, IRON CORE, METHOD FOR MANUFACTURING IRON CORE, MOTOR, AND METHOD FOR MANUFACTURING MOTOR

WIPO Patent Application WO/2023/008510

A1

This non-oriented electromagnetic steel sheet has a chemical constitution that includes 1.0-5.0 mass% Si, the sheet thickness is 0.10-0.35 mm, the average crystal grain diameter is 30-200 μm, X1 value as defined by X1 = (2×B50L+B50C)/(3×Is) is less than 0.845, E1 value as defined by E1 = EL/EC is 0.930 or greater, and the iron loss W10/1k is 80 W/kg or less. (Here, B50L is the magnetic flux density in the rolling direction when magnetized with a magnetizing force of 5000 A/m, B50C is the magnetic flux density in the direction orthogonal to rolling when magnetized with a magnetizing force of 5000 A/m, Is is the spontaneous magnetization at room temperature, EL is Young's modulus in the rolling direction, and EC is the Young's modulus in the direction orthogonal to rolling.)

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WAKISAKA TAKEAKI (JP)
TANAKA ICHIRO (JP)

PCT/JP2022/029059

February 02, 2023

July 28, 2022

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NIPPON STEEL CORP (JP)

C22C38/00; C22C38/60; H01F1/147; C21D8/12

WO2020149405A1	2020-07-23
WO2013069754A1	2013-05-16

JP2011236486A	2011-11-24
JP2020020005A	2020-02-06
KR20100071213A	2010-06-29
JP2021126291A	2021-09-02
JP5447167B2	2014-03-19
JP5716315B2	2015-05-13

MATSUNUMA Yasushi et al. (JP)

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