Method For Manufacturing Oriented Electromagnetic Steel Sheet, And

Method For Manufacturing Oriented Electromagnetic Steel Sheet, And Oriented Electromagnetic Steel Sheet

Abstract: A method for manufacturing an oriented electromagnetic steel sheet according to the present invention comprises: a cold rolling step in which a cold rolled steel sheet is manufactured; a finish annealing step in which the cold rolled steel sheet is subjected to finish annealing in association with secondary recrystallization; a groove formation step in which a linear groove is formed in the cold rolled steel sheet before or after the finish annealing step in a direction crossing the rolling direction of the cold rolled steel sheet; and a tension film imparting step in which a tension film is formed on a groove-formed surface of the cold rolled steel sheet by applying and baking a coating solution comprising phosphoric acid, a phosphate, a chromic anhydride, a chromate, alumina, or a silica compound in a state where the groove-formed surface is facing downward.

Patent Information

Application #

Filing Date

16 September 2024

Publication Number

2/2025

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. ARAI Satoshi

c/o NIPPON STEEL TECHNOLOGY Co., Ltd., 1-7-1, Yurakucho, Chiyoda-ku, Tokyo 1000006

2. HAMAMURA Hideyuki

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

3. SUGIYAMA Kimihiko

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

4. IWAKI Masataka

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

Specification

Documents

Application Documents

#	Name	Date
1	202417069842-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [16-09-2024(online)].pdf	2024-09-16
2	202417069842-STATEMENT OF UNDERTAKING (FORM 3) [16-09-2024(online)].pdf	2024-09-16
3	202417069842-REQUEST FOR EXAMINATION (FORM-18) [16-09-2024(online)].pdf	2024-09-16
4	202417069842-PROOF OF RIGHT [16-09-2024(online)].pdf	2024-09-16
5	202417069842-POWER OF AUTHORITY [16-09-2024(online)].pdf	2024-09-16
6	202417069842-FORM 18 [16-09-2024(online)].pdf	2024-09-16
7	202417069842-FORM 1 [16-09-2024(online)].pdf	2024-09-16
8	202417069842-DRAWINGS [16-09-2024(online)].pdf	2024-09-16
9	202417069842-DECLARATION OF INVENTORSHIP (FORM 5) [16-09-2024(online)].pdf	2024-09-16
10	202417069842-COMPLETE SPECIFICATION [16-09-2024(online)].pdf	2024-09-16
11	202417069842-FORM 3 [03-02-2025(online)].pdf	2025-02-03