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1. WO2016104813 - GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME

Publication Number WO/2016/104813
Publication Date 30.06.2016
International Application No. PCT/JP2015/086588
International Filing Date 24.12.2015
IPC
C22C 38/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C21D 8/12 2006.1
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
C21D 9/46 2006.1
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
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
46for sheet metals
C22C 38/60 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
60containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
C23C 8/26 2006.1
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; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
06using gases
08only one element being applied
24Nitriding
26of ferrous surfaces
C23C 8/50 2006.1
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; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
40using liquids, e.g. salt baths, liquid suspensions
42only one element being applied
48Nitriding
50of ferrous surfaces
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
C21D 8/1222
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1216the working step(s) being of interest
1222Hot rolling
C21D 8/1233
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1216the working step(s) being of interest
1233Cold rolling
C21D 8/1244
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1244the heat treatment(s) being of interest
C21D 8/1255
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1244the heat treatment(s) being of interest
1255with diffusion of elements, e.g. decarburising, nitriding
C21D 8/1261
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1244the heat treatment(s) being of interest
1261following hot rolling
Applicants
  • JFEスチール株式会社 JFE STEEL CORPORATION [JP]/[JP]
Inventors
  • 新垣 之啓 SHINGAKI, Yukihiro
  • 大久保 智幸 OKUBO, Tomoyuki
  • 井上 博貴 INOUE, Hirotaka
Agents
  • 杉村 憲司 SUGIMURA, Kenji
Priority Data
2014-26077024.12.2014JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME
(FR) TÔLE D'ACIER ÉLECTROMAGNÉTIQUE ORIENTÉE ET PROCÉDÉ DE FABRICATION DE CELLE-CI
(JA) 方向性電磁鋼板およびその製造方法
Abstract
(EN)
Provided is a grain-oriented electrical steel sheet with superior magnetic characteristics, such electromagnetic steel sheet being provided with an undercoat film having a high TiN ratio which is advantageous for imparting tension to a steel sheet. This grain-oriented electrical steel sheet is characterized: by having an undercoat film in which, in an analysis using thin-film X-ray diffraction, a peak value PTiN of TiN (Osbornite) found in the range of 42°<2θ<43° and a peak value PMg2SiO4 of Mg2SiO4 (Forsterite) found in the range of 35°<2θ<36° are both greater than 0, and the relationship of PTiN≧PMg2SiO4 is satisfied; and in that the iron loss W17/50 is 1.0 W/kg or less.
(FR)
L'invention concerne une tôle d'acier électromagnétique orientée qui possède des caractéristiques magnétiques supérieures, cette tôle d'acier électromagnétique étant pourvue d'une couche inférieure présentant un rapport TiN élevé, ce qui est avantageux pour conférer une tension à la tôle d'acier. Cette tôle d'acier électromagnétique orientée est caractérisée en ce qu'elle comporte une couche inférieure dans laquelle, dans une analyse utilisant une diffraction par rayons X de couche mince, la valeur de crête PTiN de TiN (osbornite) trouvée dans la plage de 42° < 2θ < 43°, et la valeur de crête PMg2SiO4 de Mg2SiO4 (forstérite) trouvée dans la plage de 35° < 2θ < 36° sont toutes deux supérieures à 0, et la relation PTiN ≧ PMg2SiO4 est satisfaite; et la perte de fer W17/50 est inférieure ou égale à 1,0 W/kg.
(JA)
鋼板への張力付与に有利なTiN比率の高い下地被膜を備え、優れた磁気特性を有する方向性電磁鋼板を提供する。 本発明の方向性電磁鋼板は、薄膜X線回折を用いた分析で、42°<2θ<43°の範囲に認められるTiN(Osbornite)のピーク値ΡΤiΝと、35°<2θ<36°に認められるMg2SiO4(Forsterite)のピークの値PMg2SiO4とが、ともに0超えであり、かつ、PTiN≧PMg2SiO4の関係を満足する下地被膜を有し、鉄損W17/50が1.0W/kg以下であることを特徴とする。
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