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1. WO2020111738 - ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2020/111738
Publication Date 04.06.2020
International Application No. PCT/KR2019/016382
International Filing Date 26.11.2019
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
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
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
  • 고현석 KO, Hyun-Seok
  • 서진욱 SEO, Jin-Wook
Agents
  • 유미특허법인 YOU ME PATENT AND LAW FIRM
Priority Data
10-2018-015311630.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
(FR) TÔLE D’ACIER ÉLECTRIQUE ORIENTÉE ET SON PROCÉDÉ DE FABRICATION
(KO) 방향성 전기강판 및 그의 제조방법
Abstract
(EN)
A method for manufacturing an oriented electrical steel sheet, according to one embodiment of the present invention, comprises: a step for heating a slab; a step for hot rolling the slab to manufacture a hot rolled steel sheet; a step for hot rolled sheet annealing the hot rolled steel sheet; a step for primary cold rolling the hot rolled sheet annealed hot rolled steel sheet; a step for decarburization annealing the primary cold rolled steel sheet; a step for secondary cold rolling the steel sheet with the decarburization annealing completed; a step for continuously annealing the steel sheet with the secondary cold rolling completed; and a step for batch annealing the continuously annealed steel sheet.
(FR)
Un procédé de fabrication d'une tôle d'acier électrique orientée, selon un mode de réalisation de la présente invention, comprend: une étape consistant à chauffer une brame; une étape de laminage à chaud de la brame pour fabriquer une tôle d'acier laminée à chaud; une étape de recuit à chaud de la tôle d'acier laminée à chaud; une étape de laminage à froid primaire de la tôle d'acier laminée à chaud recuite à la tôle laminée à chaud; une étape de recuit de décarburation de la tôle d'acier primaire laminée à froid; une étape de laminage à froid secondaire de la tôle d'acier avec le recuit de décarburation terminé; une étape de recuit en continu de la tôle d'acier avec le laminage à froid secondaire achevé; et une étape de recuit par lots de la tôle d'acier recuit en continu.
(KO)
본 발명의 일 실시예에 의한 방향성 전기강판의 제조방법은 슬라브를 가열하는 단계; 슬라브를 열간 압연하여 열연 강판을 제조하는 단계; 열연 강판을 열연판 소둔하는 단계; 열연판 소둔된 열연 강판을 1차 냉간 압연하는 단계; 1차 냉간 압연된 강판을 탈탄 소둔하는 단계; 탈탄 소둔이 완료된 강판을 2차 냉간 압연하는 단계; 2차 냉간 압연이 완료된 강판을 연속 소둔하는 단계 및 연속 소둔된 강판을 배치 소둔하는 단계를 포함한다.
Also published as
Latest bibliographic data on file with the International Bureau