EP4621089A4 - Feuille d'acier électromagnétique à grains orientés et son procédé de production - Google Patents

Feuille d'acier électromagnétique à grains orientés et son procédé de production

Info

Publication number
EP4621089A4
EP4621089A4 EP23891609.2A EP23891609A EP4621089A4 EP 4621089 A4 EP4621089 A4 EP 4621089A4 EP 23891609 A EP23891609 A EP 23891609A EP 4621089 A4 EP4621089 A4 EP 4621089A4
Authority
EP
European Patent Office
Prior art keywords
grain
producing
steel sheet
electromagnetic steel
oriented electromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23891609.2A
Other languages
German (de)
English (en)
Other versions
EP4621089A1 (fr
Inventor
Takashi Kataoka
Ryutaro Yamagata
Mayuko Kikuzuki
Junki Nakamura
Yoshihiro Suwa
Kazutoshi Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP4621089A1 publication Critical patent/EP4621089A1/fr
Publication of EP4621089A4 publication Critical patent/EP4621089A4/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the working steps
    • C21D8/1222—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the working steps
    • C21D8/1233—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
    • C21D8/1255—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment with diffusion of elements, e.g. decarburising, nitriding
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
    • C21D8/1261—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
    • C21D8/1272—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C21D8/1283—Application of a separating or insulating coating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
EP23891609.2A 2022-11-15 2023-11-15 Feuille d'acier électromagnétique à grains orientés et son procédé de production Pending EP4621089A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022182571 2022-11-15
PCT/JP2023/041072 WO2024106462A1 (fr) 2022-11-15 2023-11-15 Feuille d'acier électromagnétique à grains orientés et son procédé de production

Publications (2)

Publication Number Publication Date
EP4621089A1 EP4621089A1 (fr) 2025-09-24
EP4621089A4 true EP4621089A4 (fr) 2026-03-11

Family

ID=91084794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23891609.2A Pending EP4621089A4 (fr) 2022-11-15 2023-11-15 Feuille d'acier électromagnétique à grains orientés et son procédé de production

Country Status (5)

Country Link
EP (1) EP4621089A4 (fr)
JP (1) JPWO2024106462A1 (fr)
KR (1) KR20250071287A (fr)
CN (1) CN120265808A (fr)
WO (1) WO2024106462A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026042449A1 (fr) * 2024-08-23 2026-02-26 Ｊｆｅスチール株式会社 Feuille d'acier électrique à grains orientés et son procédé de fabrication

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543134A (en) * 1984-01-09 1985-09-24 Nippon Steel Corporation Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film
JPH08143961A (ja) * 1994-11-16 1996-06-04 Nippon Steel Corp グラス被膜と磁気特性の極めて優れる方向性電磁鋼板の製造方法
JPH10152724A (ja) * 1996-11-22 1998-06-09 Nippon Steel Corp 極めて低い鉄損をもつ一方向性電磁鋼板の製造方法
JP2013108149A (ja) * 2011-11-24 2013-06-06 Jfe Steel Corp 三相変圧器用鉄心
US20130306202A1 (en) * 2011-12-16 2013-11-21 Posco Method for Manufacturing Grain-Oriented Electrical Steel Sheets Having Excellent Magnetic Properties
EP3517646A1 (fr) * 2016-09-21 2019-07-31 JFE Steel Corporation Tôle magnétique en acier à grains orientés et procédé pour sa fabrication
EP3770281A1 (fr) * 2018-03-22 2021-01-27 Nippon Steel Corporation Tôle d'acier électrique à grains orientés et procédé de fabrication de tôle d'acier électrique à grains orientés
EP3812478A1 (fr) * 2018-06-21 2021-04-28 Nippon Steel Corporation Tôle d'acier électrique à grains orientés présentant d'excellentes caractéristiques magnétiques
JP2021123752A (ja) * 2020-02-05 2021-08-30 日本製鉄株式会社 方向性電磁鋼板

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126722A (ja) 1983-01-11 1984-07-21 Nippon Steel Corp 鉄損の優れた薄手高磁束密度一方向性電磁鋼板の製造方法
JP2562254B2 (ja) 1992-04-24 1996-12-11 新日本製鐵株式会社 薄手高磁束密度一方向性電磁鋼板の製造方法
JP3021241B2 (ja) 1993-07-13 2000-03-15 新日本製鐵株式会社 グラス被膜及び磁気特性の極めて優れる方向性電磁鋼板の製造方法
JP3598590B2 (ja) * 1994-12-05 2004-12-08 Ｊｆｅスチール株式会社 磁束密度が高くかつ鉄損の低い一方向性電磁鋼板
KR101351955B1 (ko) * 2011-08-01 2014-01-16 주식회사 포스코 자성이 우수한 방향성 전기강판 및 그 제조방법
JP7644338B2 (ja) * 2021-04-08 2025-03-12 日本製鉄株式会社 方向性電磁鋼板の製造方法
JP2022182571A (ja) 2021-05-28 2022-12-08 井関農機株式会社 乗用田植機

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543134A (en) * 1984-01-09 1985-09-24 Nippon Steel Corporation Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film
JPH08143961A (ja) * 1994-11-16 1996-06-04 Nippon Steel Corp グラス被膜と磁気特性の極めて優れる方向性電磁鋼板の製造方法
JPH10152724A (ja) * 1996-11-22 1998-06-09 Nippon Steel Corp 極めて低い鉄損をもつ一方向性電磁鋼板の製造方法
JP2013108149A (ja) * 2011-11-24 2013-06-06 Jfe Steel Corp 三相変圧器用鉄心
US20130306202A1 (en) * 2011-12-16 2013-11-21 Posco Method for Manufacturing Grain-Oriented Electrical Steel Sheets Having Excellent Magnetic Properties
EP3517646A1 (fr) * 2016-09-21 2019-07-31 JFE Steel Corporation Tôle magnétique en acier à grains orientés et procédé pour sa fabrication
EP3770281A1 (fr) * 2018-03-22 2021-01-27 Nippon Steel Corporation Tôle d'acier électrique à grains orientés et procédé de fabrication de tôle d'acier électrique à grains orientés
EP3812478A1 (fr) * 2018-06-21 2021-04-28 Nippon Steel Corporation Tôle d'acier électrique à grains orientés présentant d'excellentes caractéristiques magnétiques
JP2021123752A (ja) * 2020-02-05 2021-08-30 日本製鉄株式会社 方向性電磁鋼板

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LEE SEIL ET AL: "Statistical analysis of misorientation to goss orientation of highly grain-oriented silicon steel", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, ELSEVIER, AMSTERDAM, NL, vol. 560, 10 June 2022 (2022-06-10), XP087121401, ISSN: 0304-8853, [retrieved on 20220610], DOI: 10.1016/J.JMMM.2022.169563 *
See also references of WO2024106462A1 *

Also Published As

Publication number Publication date
KR20250071287A (ko) 2025-05-21
WO2024106462A1 (fr) 2024-05-23
EP4621089A1 (fr) 2025-09-24
CN120265808A (zh) 2025-07-04
JPWO2024106462A1 (fr) 2024-05-23

Similar Documents

Publication Publication Date Title
EP4321634A4 (fr) Tôle d'acier électromagnétique à grains orientés et procédé de formation d'un film isolant
EP4137600A4 (fr) Tôle d'acier électromagnétique non orientéee et procédé pour la fabriquer
EP4512914A4 (fr) Tôle d'acier électromagnétique à grains orientés et son procédé de fabrication
EP4502190A4 (fr) Tôle d'acier électromagnétique à grains orientés et son procédé de production
EP4603606A4 (fr) Feuille d'acier électromagnétique non orientée et son procédé de fabrication
EP4350013A4 (fr) Tôle d'acier électromagnétique non orientée et son procédé de fabrication
EP4640854A4 (fr) Tôle d'acier électrique à grains orientés et son procédé de fabrication
EP4467679A4 (fr) Tôle d'acier électromagnétique non orientée et son procédé de fabrication
EP4575008A4 (fr) Tôle d'acier épaisse, et procédé de fabrication de celle-ci
EP4427857A4 (fr) Tôle d'acier électromagnétique non orienté et son procédé de fabrication
EP4603614A4 (fr) Tôle d'acier électromagnétique à grains orientés, et procédé de fabrication de celle-ci
EP4621089A4 (fr) Feuille d'acier électromagnétique à grains orientés et son procédé de production
EP4600384A4 (fr) Feuille d'acier électromagnétique à grains orientés et son procédé de fabrication
EP4477769A4 (fr) Tôle en acier, et procédé de fabrication de celle-ci
EP4273277A4 (fr) Procédé de production de tôle d'acier électromagnétique à grains orientés et séparateur de recuit utilisé pour celui-ci
EP4592412A4 (fr) Tôle d'acier électromagnétique non orientée et son procédé de fabrication
EP4474493A4 (fr) Tôle d'acier électromagnétique à grains orientés et procédé de fabrication d?une telle tôle d?acier
EP4502192A4 (fr) Tôle d'acier électrique à grains orientés et son procédé de fabrication
EP4506487A4 (fr) Tôle d'acier électromagnétique orientée, et procédé de formation de film de revêtement isolant
EP4506471A4 (fr) Feuille d'acier électromagnétique à grains orientés et son procédé de production
EP4600399A4 (fr) Tôle d'acier et son procédé de fabrication
EP4636118A4 (fr) Tôle d'acier et son procédé de fabrication
EP4406670A4 (fr) Tôle d'acier électromagnétique non orienté et son procédé de fabrication
EP4600385A4 (fr) Tôle d'acier électromagnétique à grains orientés et son procédé de fabrication
EP4317486A4 (fr) Tôle d'acier électromagnétique non orienté et son procédé de fabrication

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250528

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C22C0038000000

Ipc: C21D0008124400

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20260205

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 8/1244 20260101AFI20260130BHEP

Ipc: C21D 8/1277 20260101ALI20260130BHEP

Ipc: C21D 9/46 20060101ALI20260130BHEP

Ipc: C21D 1/76 20060101ALI20260130BHEP

Ipc: C21D 1/26 20060101ALI20260130BHEP

Ipc: C21D 3/04 20060101ALI20260130BHEP

Ipc: C21D 6/00 20060101ALI20260130BHEP

Ipc: C22C 38/00 20060101ALI20260130BHEP

Ipc: C22C 38/60 20060101ALI20260130BHEP

Ipc: C22C 38/02 20060101ALI20260130BHEP

Ipc: C22C 38/04 20060101ALI20260130BHEP

Ipc: C22C 38/08 20060101ALI20260130BHEP

Ipc: C22C 38/12 20060101ALI20260130BHEP

Ipc: C22C 38/14 20060101ALI20260130BHEP

Ipc: C22C 38/16 20060101ALI20260130BHEP

Ipc: C22C 38/34 20060101ALI20260130BHEP

Ipc: C22C 38/42 20060101ALI20260130BHEP

Ipc: C22C 38/44 20060101ALI20260130BHEP

Ipc: C22C 38/50 20060101ALI20260130BHEP

Ipc: H01F 1/147 20060101ALI20260130BHEP

Ipc: H01F 1/16 20060101ALI20260130BHEP