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1. WO2020111781 - NON-DIRECTIONAL ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

Publication Number WO/2020/111781
Publication Date 04.06.2020
International Application No. PCT/KR2019/016490
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 38/04 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 38/06 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
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
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
  • 박준수 PARK, June Soo
  • 홍재완 HONG, Jaewan
  • 송대현 SONG, Dae-Hyun
Agents
  • 유미특허법인 YOU ME PATENT AND LAW FIRM
Priority Data
10-2018-015298530.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) NON-DIRECTIONAL ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
(FR) TÔLE MAGNÉTIQUE EN ACIER NON DIRECTIONNELLE ET SON PROCÉDÉ DE PRODUCTION
(KO) 무방향성 전기강판 및 그 제조방법
Abstract
(EN)
A non-directional electrical steel sheet according to one embodiment of the present invention comprises: 1.5-4.0 wt% of Si; 0.1-1.5 wt% of Mn; 0.7-1.5 wt% of Al; 0.0001-0.003 wt% of Bi; and 0.0001-0.003 wt% of Ga, with the balance comprising Fe and inevitable impurities, and satisfies formula 1. [Formula 1] [Al] + [Mn] ≥ 0.87 (In formula 1, [Al] and [Mn] represent the contents (weight%) of Al and Mn, respectively.)
(FR)
La présente invention, selon un mode de réalisation, concerne une tôle magnétique en acier non directionnelle comprenant : de 1,5 à 4,0 % en poids de Si ; de 0,1 à 1,5 % en poids de Mn ; de 0,7 à 1,5 % en poids d'Al ; de 0,0001 à 0,003 % en poids de Bi ; et de 0,0001 à 0,003 % en poids de Ga, le reste comprenant du Fe et des impuretés inévitables, et satisfaisant à la formule 1. [Formule 1] [Al] + [Mn] ≥ 0,87 (dans la formule 1, [Al] et [Mn] représentent respectivement les teneurs (% en poids) en Al et en Mn).
(KO)
본 발명의 일 실시예에 의한 무방향성 전기강판은 중량%로, Si: 1.5 내지 4.0%, Mn: 0.1 내지 1.5%, Al: 0.7 내지 1.5%, Bi: 0.0001내지 0.003% 및 Ga: 0.0001내지 0.003% 포함하고, 잔부 Fe 및 불가피한 불순물을 포함하고, 하기 식 1을 만족한다. [식 1] [Al] + [Mn] ≥ 0.87 (식 1에서, [Al], [Mn]는 각각 Al, Mn의 함량(중량%)을 나타낸다.)
Also published as
Latest bibliographic data on file with the International Bureau