Wound Core, Method For Manufacturing Wound Core, And Wound Core

Wound Core, Method For Manufacturing Wound Core, And Wound Core Manufacturing Device

Abstract: This wound core (10) includes a portion in which grain-oriented electrical steel sheets (1), each having flat portions (4) and bent portions (5) alternately continuous in a longitudinal direction, are stacked in a plate-thickness direction, the wound core being formed by stacking the grain-oriented electrical steel sheets (1), having been individually subjected to a bending process, in layers and assembling the layers in a wound shape. The wound core (10) is characterized in that the relationship 1.00 < RSm(b) / RSm(s) = 5.00 is satisfied, wherein RSm(b) is an average length of roughness curve elements in a width direction forming the surface of the bent portions (5) of the grain-oriented electrical steel sheets (1) and intersecting the longitudinal direction, and RSm(s) is an average length of roughness curve elements in the width direction forming the surface of the flat portions 4 of the grain-oriented electrical steel sheets (1).

Patent Information

Application #

Filing Date

26 April 2023

Publication Number

47/2023

Publication Type

INA

Invention Field

ELECTRICAL

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. MIZUMURA Takahito

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

3. MOGI Hisashi

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

Specification

Documents

Application Documents

#	Name	Date
1	202317030027-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-04-2023(online)].pdf	2023-04-26
2	202317030027-STATEMENT OF UNDERTAKING (FORM 3) [26-04-2023(online)].pdf	2023-04-26
3	202317030027-PROOF OF RIGHT [26-04-2023(online)].pdf	2023-04-26
4	202317030027-PRIORITY DOCUMENTS [26-04-2023(online)].pdf	2023-04-26
5	202317030027-POWER OF AUTHORITY [26-04-2023(online)].pdf	2023-04-26
6	202317030027-FORM 1 [26-04-2023(online)].pdf	2023-04-26
7	202317030027-DRAWINGS [26-04-2023(online)].pdf	2023-04-26
8	202317030027-DECLARATION OF INVENTORSHIP (FORM 5) [26-04-2023(online)].pdf	2023-04-26
9	202317030027-COMPLETE SPECIFICATION [26-04-2023(online)].pdf	2023-04-26
10	202317030027.pdf	2023-05-03
11	202317030027-FORM 3 [20-09-2023(online)].pdf	2023-09-20
12	202317030027-FORM 18 [25-09-2024(online)].pdf	2024-09-25