Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/121200
Kind Code:
A1
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.

More Like This:
JP6398210Manufacturing method of cold-rolled steel sheet
JP7338792Steel material and manufacturing method thereof, tank and manufacturing method thereof
JPS5914538[Title of the Invention] Steel with low stress-relief-annealing crack susceptibility
Inventors:
KIM JAE-HOON (KR)
SHIN SU-YONG (KR)
KIM YUNSU (KR)
Application Number:
PCT/KR2022/020772
Publication Date:
June 29, 2023
Filing Date:
December 20, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/38; C21D8/12; C21D9/46; C22C38/00; C22C38/20; C22C38/28; H01F1/147
Domestic Patent References:
WO2016031178A12016-03-03
Foreign References:
KR20180071104A2018-06-27
US20170274432A12017-09-28
CN112143963A2020-12-29
KR20210080726A2021-07-01
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ACTIVATED RAS AS THERAPEUTIC AND DIAGNOSTIC TARGET FOR NEUROFIBROMATOSIS AND USE THEREOF

Next Patent: GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR