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1. WO2020111735 - ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2020/111735
Publication Date 04.06.2020
International Application No. PCT/KR2019/016379
International Filing Date 26.11.2019
IPC
C23C 28/04 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
28Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups C23C2/-C23C26/173
04only coatings of inorganic non-metallic material
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
C23C 22/07
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
05using aqueous solutions
06using aqueous acidic solutions with pH less than 6
07containing phosphates
C23C 22/77
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
73characterised by the process
77Controlling or regulating of the coating process
C23C 28/04
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
28Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
04only coatings of inorganic non-metallic material
C23C 8/02
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces
02Pretreatment of the material to be coated
C23C 8/14
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8Solid state diffusion of only non-metal elements into metallic material surfaces
06using gases
08only one element being applied
10Oxidising
12using elemental oxygen or ozone
14Oxidising of ferrous surfaces
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 권오열 KWON, Oh-Yeoul
  • 김우신 KIM, Woo-Sin
  • 박종태 PARK, Jong-Tae
Agents
  • 유미특허법인 YOU ME PATENT AND LAW FIRM
Priority Data
10-2018-015311830.11.2018KR
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 제조 방법
Abstract
(EN)
The oriented electrical steel sheet according to one embodiment of the present invention has, on the surface of an electrical steel sheet, a groove comprising a bottom part and a side part, has a metal oxide layer on the groove, and has an insulation layer on the metal oxide layer, the steel sheet comprising: a normal groove having the metal oxide layer thicker than 0.5 ㎛ positioned on the bottom part and the side part; and a defective groove having the metal oxide layer not thicker than 0.5 ㎛ positioned on the side part or the bottom part, wherein the thickness of the insulation layer on the normal groove is greater than or equal to 0.5 ㎛ and less than 1.5 ㎛, and the thickness of the insulation layer on the defective groove is 1.5 to 10 ㎛.
(FR)
La tôle d'acier électrique orientée selon un mode de réalisation de la présente invention présente, sur la surface d'une tôle d'acier électrique, une rainure comprenant une partie inférieure et une partie latérale, une couche d'oxyde métallique sur la rainure et une couche d'isolation sur la couche d'oxyde métallique, la tôle d'acier comprenant : une rainure normale, dont la couche d'oxyde métallique a une épaisseur supérieure à 0,5 ㎛, positionnée sur la partie inférieure et la partie latérale ; et une rainure défectueuse, dont la couche d'oxyde métallique a une épaisseur qui n'est pas supérieure à 0,5 ㎛, positionnée sur la partie latérale ou la partie inférieure, l'épaisseur de la couche d'isolation sur la rainure normale étant supérieure ou égale à 0,5 ㎛ et inférieure à 1,5 ㎛, et l'épaisseur de la couche d'isolation sur la rainure défectueuse allant de 1,5 à 10 ㎛.
(KO)
본 발명의 일 실시예에 의한 방향성 전기강판은 전기강판의 표면에, 바닥부 및 측부를 포함하는 그루브가 위치하고, 그루브 상에 금속 산화물층이 위치하고, 금속 산화물층 상에 절연층이 위치하고, 강판은 바닥부 및 측부 상에 위치한 금속 산화물층의 두께가 0.5㎛ 초과인 정상 그루브, 측부 또는 바닥부 상에 위치한 금속 산화물층의 두께가 0.5㎛ 이하인 결함 그루브를 포함하고, 정상 그루브 상에 위치하는 절연층은 두께가 0.5㎛ 이상 및 1.5㎛ 미만이고, 결함 그루브 상에 위치하는 절연층은 두께가 1.5 내지 10㎛이다.
Also published as
Latest bibliographic data on file with the International Bureau