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1. WO2020111783 - NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2020/111783
Publication Date 04.06.2020
International Application No. PCT/KR2019/016492
International Filing Date 27.11.2019
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 38/16 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
16containing copper
C21D 8/12 2006.01
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
H01F 1/147 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
12of soft-magnetic materials
14metals or alloys
147Alloys characterised by their composition
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 38/02
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 38/16
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
16containing copper
H01F 1/147
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
12of soft-magnetic materials
14metals or alloys
147Alloys characterised by their composition
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 이헌주 LEE, Hun Ju
  • 신수용 SHIN, Su-Yong
  • 김용수 KIM, Yong-Soo
Agents
  • 유미특허법인 YOU ME PATENT AND LAW FIRM
Priority Data
10-2018-015308430.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
(FR) TÔLE D'ACIER ÉLECTRIQUE NON ORIENTÉE ET SON PROCÉDÉ DE FABRICATION
(KO) 무방향성 전기강판 및 그 제조방법
Abstract
(EN)
The non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by weight %, 1.5 to 4.0% of Si, 0.7 to 2.5% of Al, 1 to 2% of Mn, 0.003 to 0.02% of Cu, at most 0.005% of S (not 0%), and the remainder in Fe and unavoidable impurities, and satisfies formulas 1 and 2 below. [Formula 1] 150≤[Mn]/[Cu]≤250 [Formula 2] 3≤[Cu]/[S]≤7 (In formulas 1 and 2, [Mn], [Cu], and [S] represent Mn, Cu, and S contents (weight %), respectively.)
(FR)
Une tôle d'acier électrique non orientée selon un mode de réalisation de la présente invention comprend, en % en poids, de 1,5 à 4,0 % de Si, de 0,7 à 2,5 % de Al, de 1 à 2 % de Mn, de 0,003 à 0,02 % de Cu, au plus 0,005 % de S (pas 0 %) et le reste étant du Fe et d'autres impuretés inévitables, et satisfait aux formules 1 et 2 ci-dessous. [Formule 1] 150 ≤ [Mn] / [Cu] ≤ 250 [Formule 2] 3 ≤ [Cu] / [S] ≤ 7 (dans les formules 1 et 2, [Mn], [Cu], et [S] représentent des contenus Mn, Cu et S (% en poids)), respectivement).
(KO)
본 발명의 일 실시예에 의한 무방향성 전기강판은 중량%로, Si: 1.5 내지 4.0%, Al: 0.7 내지 2.5%, Mn: 1 내지 2%, Cu: 0.003 내지 0.02% 및 S:0.005% 이하(0%를 제외함) 포함하고, 잔부 Fe 및 불가피한 불순물을 포함하고, 하기 식 1 및 식 2를 만족한다. [식 1] 150 ≤ [Mn]/[Cu] ≤ 250 [식 2] 3 ≤ [Cu]/[S] ≤ 7 (식 1 및 식 2에서, [Mn], [Cu] 및 [S]는 각각 Mn, Cu 및 S의 함량(중량%)을 나타낸다.)
Also published as
Latest bibliographic data on file with the International Bureau