Grain Oriented Electromagnetic Steel Sheet And Manufacturing Method

Grain Oriented Electromagnetic Steel Sheet And Manufacturing Method Thereof

Abstract: This grain-oriented electromagnetic steel sheet comprises a base steel sheet, a glass coating formed on the base steel sheet, and a tension-imparting insulating coating formed on the glass coating, wherein: multiple linear distortion regions, which continuously or intermittently extend in a direction intersecting with a rolling direction, are present in the base steel sheet, each of the multiple linear distortion regions has a width of 210 µm or less in the rolling direction, the multiple linear distortion regions are parallel to each other, and the interval between adjoining linear distortion regions is 10 mm or less in the rolling direction; and magnetostriction ?0-pb per unit µm/m obtained when excited to 1.7 T and magnetostriction ?0-pa per unit µm/m obtained when excited to 1.7 T after having been heat-treated at 800° C for 4 hours satisfy 0.02 = ?0-pb - ?0-pa = 0.20.

Patent Information

Application #

Filing Date

14 September 2023

Publication Number

36/2024

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. IWAKI Masataka

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

2. KATAOKA Takashi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

3. TANAKA Tomohito

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

4. HAMAMURA Hideyuki

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

#	Name	Date
1	202317061916-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [14-09-2023(online)].pdf	2023-09-14
2	202317061916-STATEMENT OF UNDERTAKING (FORM 3) [14-09-2023(online)].pdf	2023-09-14
3	202317061916-REQUEST FOR EXAMINATION (FORM-18) [14-09-2023(online)].pdf	2023-09-14
4	202317061916-PROOF OF RIGHT [14-09-2023(online)].pdf	2023-09-14
5	202317061916-PRIORITY DOCUMENTS [14-09-2023(online)].pdf	2023-09-14
6	202317061916-POWER OF AUTHORITY [14-09-2023(online)].pdf	2023-09-14
7	202317061916-FORM 18 [14-09-2023(online)].pdf	2023-09-14
8	202317061916-FORM 1 [14-09-2023(online)].pdf	2023-09-14
9	202317061916-DECLARATION OF INVENTORSHIP (FORM 5) [14-09-2023(online)].pdf	2023-09-14
10	202317061916-COMPLETE SPECIFICATION [14-09-2023(online)].pdf	2023-09-14
11	202317061916-FORM 3 [15-02-2024(online)].pdf	2024-02-15