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1. WO2020111570 - NON-ORIENTED ELECTRICAL STEEL SHEET HAVING SUPERIOR MAGNETIC PROPERTIES AND METHOD OF MANUFACTURING SAME

Publication Number WO/2020/111570
Publication Date 04.06.2020
International Application No. PCT/KR2019/015193
International Filing Date 08.11.2019
IPC
C22C 38/02 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
02containing silicon
C22C 38/06 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
06containing aluminium
C22C 38/04 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
04containing manganese
C22C 38/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/12 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
12containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
14containing titanium or zirconium
CPC
C21D 8/12
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
C22C 38/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
02containing silicon
C22C 38/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
04containing manganese
C22C 38/06
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
06containing aluminium
C22C 38/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
12containing tungsten, tantalum, molybdenum, vanadium, or niobium
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 이헌주 LEE, Hun Ju
  • 김용수 KIM, Yong-Soo
  • 신수용 SHIN, Su-Yong
Agents
  • 유미특허법인 YOU ME PATENT AND LAW FIRM
Priority Data
10-2018-015297330.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) NON-ORIENTED ELECTRICAL STEEL SHEET HAVING SUPERIOR MAGNETIC PROPERTIES AND METHOD OF MANUFACTURING SAME
(FR) TÔLE D'ACIER ÉLECTRIQUE NON ORIENTÉE PRÉSENTANT DES PROPRIÉTÉS MAGNÉTIQUES SUPÉRIEURES ET PROCÉDÉ DE PRODUCTION DE CELLE-CI
(KO) 자성이 우수한 무방향성 전기강판 및 그 제조방법
Abstract
(EN)
The present invention relates to a non-oriented electrical steel sheet having superior magnetic properties and a method for manufacturing same. The non-oriented electrical steel sheet according to one embodiment of the present invention comprises, in wt%, Si: 2.5-3.8%, Al: 0.5-2.5%, Mn: 0.2-4.5%, C: 0.005% or less (excluding 0%), S: 0.005% or less (excluding 0%), N: 0.005% or less (excluding 0%), Nb: 0.004% or less (excluding 0%), Ti: 0.004% or less (excluding 0%), V: 0.004% or less (excluding 0%), Ta: 0.0005-0.0025%, the balance being Fe and inevitable impurities.
(FR)
La présente invention concerne une tôle d'acier électrique non orientée ayant des propriétés magnétiques esupérieure et un procédé de production de celle-ci. La tôle d'acier électrique non orientée selon un mode de réalisation de la présente invention comprend, en % en poids, Si: 2,5-3,8%, Al: 0,5 à -2,5%, Mn: 0,2 À 4,5%, C: 0,005% ou moins, S: 0,005% ou moins, N: 0,005 % ou moins (à l'exclusion de 0%), Nb: 0,004% ou moins, et Ti: 0,004% ou moins (à l'exclusion de 0%), V: 0,004 % ou moins (à l'exclusion de 0%), Ta: 0,0005-0,0025%, le reste étant du Fe et les impuretés inévitables.
(KO)
본 발명은 자성이 우수한 무방향성 전기강판 및 그 제조방법에 관한 것이다. 본 발명의 일 실시예에 의한 무방향성 전기강판은, 중량%로, Si: 2.5 내지 3.8%, Al: 0.5 내지 2.5%, Mn: 0.2 내지 4.5%, C: 0.005% 이하(0%를 제외함), S: 0.005% 이하(0%를 제외함), N: 0.005% 이하(0%를 제외함), Nb: 0.004% 이하(0%를 제외함), Ti: 0.004% 이하(0%를 제외함), V: 0.004% 이하(0%를 제외함), Ta: 0.0005 내지 0.0025%, 잔부 Fe 및 불가피한 불순물을 포함한다.
Also published as
Latest bibliographic data on file with the International Bureau