Non Oriented Electrical Steel Sheet And Method For Manufacturing Same

Abstract: A method for manufacturing a non-oriented electrical steel sheet according to one embodiment of the present invention comprises: a step of manufacturing a slab in a steelmaking process by inputting, in weight %, In: 0.0005-0.015%, Sn: 0.0050-0.08%, Sb: 0.0050-0.05%, and P: 0.0050-0.06% into basic components, Si: 2.8-3.8%, Al: 0.5-1.5%, Mn: 0.3-2.0%, Cu: 0.01-0.2%, and Cr: 0.01-0.5%, and controlling Mg: 0.002-0.05%; a slab heating step of heating the slab; a hot rolling step of final finishing rolling the slab; a hot-rolled sheet annealing step of annealing a hot-rolled sheet; a cold rolling step of rolling the hot-rolled sheet; and a final annealing step of annealing a cold-rolled sheet.

Patent Information

Application #

Filing Date

20 June 2024

Publication Number

51/2024

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

POSCO CO., LTD

(Goedong-dong) 6261 Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Inventors

1. KIM, Jae-Hoon

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

2. SHIN, Su-Yong

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

3. KIM, Yunsu

c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Specification

Documents

Application Documents

#	Name	Date
1	202417047563-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [20-06-2024(online)].pdf	2024-06-20
2	202417047563-STATEMENT OF UNDERTAKING (FORM 3) [20-06-2024(online)].pdf	2024-06-20
3	202417047563-REQUEST FOR EXAMINATION (FORM-18) [20-06-2024(online)].pdf	2024-06-20
4	202417047563-PROOF OF RIGHT [20-06-2024(online)].pdf	2024-06-20
5	202417047563-PRIORITY DOCUMENTS [20-06-2024(online)].pdf	2024-06-20
6	202417047563-POWER OF AUTHORITY [20-06-2024(online)].pdf	2024-06-20
7	202417047563-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [20-06-2024(online)].pdf	2024-06-20
8	202417047563-FORM 18 [20-06-2024(online)].pdf	2024-06-20
9	202417047563-FORM 1 [20-06-2024(online)].pdf	2024-06-20
10	202417047563-DECLARATION OF INVENTORSHIP (FORM 5) [20-06-2024(online)].pdf	2024-06-20
11	202417047563-COMPLETE SPECIFICATION [20-06-2024(online)].pdf	2024-06-20
12	202417047563-FORM 3 [20-09-2024(online)].pdf	2024-09-20
13	202417047563-MARKED COPIES OF AMENDEMENTS [04-07-2025(online)].pdf	2025-07-04
14	202417047563-FORM 13 [04-07-2025(online)].pdf	2025-07-04
15	202417047563-AMMENDED DOCUMENTS [04-07-2025(online)].pdf	2025-07-04