EP4585706A4 - NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT - Google Patents

NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT

Info

Publication number
EP4585706A4
EP4585706A4 EP23885428.5A EP23885428A EP4585706A4 EP 4585706 A4 EP4585706 A4 EP 4585706A4 EP 23885428 A EP23885428 A EP 23885428A EP 4585706 A4 EP4585706 A4 EP 4585706A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
steel sheet
electromagnetic steel
oriented electromagnetic
oriented
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
EP23885428.5A
Other languages
German (de)
French (fr)
Other versions
EP4585706A1 (en
Inventor
Hayato Saito
Tomoyuki Okubo
Yoshiaki Zaizen
Shigehiro Maruyama
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.)
JFE Steel Corp
Original Assignee
JFE 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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP4585706A1 publication Critical patent/EP4585706A1/en
Publication of EP4585706A4 publication Critical patent/EP4585706A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D8/1261—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
    • 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
    • C22C38/002—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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/18—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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • 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
    • H01F1/14791—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
EP23885428.5A 2022-10-31 2023-10-04 NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT Pending EP4585706A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022174022 2022-10-31
PCT/JP2023/036145 WO2024095665A1 (en) 2022-10-31 2023-10-04 Non-oriented electromagnetic steel sheet and production method for same

Publications (2)

Publication Number Publication Date
EP4585706A1 EP4585706A1 (en) 2025-07-16
EP4585706A4 true EP4585706A4 (en) 2026-01-07

Family

ID=90930357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23885428.5A Pending EP4585706A4 (en) 2022-10-31 2023-10-04 NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT

Country Status (7)

Country Link
EP (1) EP4585706A4 (en)
JP (1) JP7525081B1 (en)
KR (1) KR20250056273A (en)
CN (1) CN119998480A (en)
MX (1) MX2025004950A (en)
TW (1) TWI890169B (en)
WO (1) WO2024095665A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20260011843A (en) * 2024-07-16 2026-01-26 현대제철 주식회사 Non-oriented electrical steel sheet and method for manufacturing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3633059A1 (en) * 2017-05-31 2020-04-08 JFE Steel Corporation Non-oriented electromagnetic steel sheet and production method therefor
WO2020136993A1 (en) * 2018-12-27 2020-07-02 Ｊｆｅスチール株式会社 Non-oriented electrical steel sheet and method for producing same
WO2021205880A1 (en) * 2020-04-10 2021-10-14 日本製鉄株式会社 Non-oriented electrical steel sheet, core, cold-rolled steel sheet, method for manufacturing non-oriented electrical steel sheet, and method for manufacturing cold-rolled steel sheet
WO2022210864A1 (en) * 2021-03-31 2022-10-06 日本製鉄株式会社 Non-oriented electromagnetic steel sheet, production method for non-oriented electromagnetic steel sheet, electric motor, and production method for electric motor
WO2022210998A1 (en) * 2021-04-02 2022-10-06 日本製鉄株式会社 Non-oriented electric steel sheet

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6347333A (en) * 1986-08-14 1988-02-29 Nippon Steel Corp Manufacture of nonoriented electrical steel sheet having remarkably small iron loss
JPH04128318A (en) * 1990-09-18 1992-04-28 Kobe Steel Ltd Production of non-oriented silicon steel sheet having excellent low-magnetic field chracteristic
JPH09302414A (en) 1996-05-15 1997-11-25 Nkk Corp Manufacturing method of non-oriented electrical steel sheet excellent in low magnetic field characteristics
JP2002294414A (en) * 2001-03-29 2002-10-09 Nkk Corp Non-oriented electrical steel sheet excellent in workability and method for producing the same
JP4280139B2 (en) 2003-10-02 2009-06-17 新日本製鐵株式会社 Non-oriented electrical steel sheet and manufacturing method thereof
KR20100122116A (en) * 2008-04-14 2010-11-19 신닛뽄세이테쯔 카부시키카이샤 High-strength non-oriented magnetic steel sheet and process for producing the high-strength non-oriented magnetic steel sheet
JP4825241B2 (en) 2008-06-17 2011-11-30 信越ポリマー株式会社 Substrate storage container
KR20170005517A (en) * 2011-08-18 2017-01-13 신닛테츠스미킨 카부시키카이샤 Non-oriented electromagnetic steel sheet, method for producing same, laminate for motor iron core, and method for producing said laminate
KR101904309B1 (en) * 2016-12-19 2018-10-04 주식회사 포스코 Non-oriented electrical steel sheet and method for manufacturing the same
CN110573643B (en) * 2017-07-19 2020-10-27 日本制铁株式会社 Non-oriented electrical steel sheet
WO2020262063A1 (en) * 2019-06-28 2020-12-30 Ｊｆｅスチール株式会社 Method for producing non-oriented electromagnetic steel sheet, method for producing motor core, and motor core
KR20230094463A (en) * 2021-12-21 2023-06-28 주식회사 포스코 Non-oriented electrical steel sheet and method for manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3633059A1 (en) * 2017-05-31 2020-04-08 JFE Steel Corporation Non-oriented electromagnetic steel sheet and production method therefor
WO2020136993A1 (en) * 2018-12-27 2020-07-02 Ｊｆｅスチール株式会社 Non-oriented electrical steel sheet and method for producing same
WO2021205880A1 (en) * 2020-04-10 2021-10-14 日本製鉄株式会社 Non-oriented electrical steel sheet, core, cold-rolled steel sheet, method for manufacturing non-oriented electrical steel sheet, and method for manufacturing cold-rolled steel sheet
WO2022210864A1 (en) * 2021-03-31 2022-10-06 日本製鉄株式会社 Non-oriented electromagnetic steel sheet, production method for non-oriented electromagnetic steel sheet, electric motor, and production method for electric motor
WO2022210998A1 (en) * 2021-04-02 2022-10-06 日本製鉄株式会社 Non-oriented electric steel sheet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024095665A1 *

Also Published As

Publication number Publication date
TW202419640A (en) 2024-05-16
WO2024095665A1 (en) 2024-05-10
JPWO2024095665A1 (en) 2024-05-10
MX2025004950A (en) 2025-06-02
EP4585706A1 (en) 2025-07-16
CN119998480A (en) 2025-05-13
JP7525081B1 (en) 2024-07-30
TWI890169B (en) 2025-07-11
KR20250056273A (en) 2025-04-25

Similar Documents

Publication Publication Date Title
EP4317473A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, MANUFACTURING METHOD FOR NON-ORIENTED ELECTROMAGNETIC STEEL SHEET, ELECTRIC MOTOR AND MANUFACTURING METHOD FOR ELECTRIC MOTOR
EP4502191A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MOTOR CORE
EP4621091A4 (en) NON-ORIENTED ELECTRO-STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4617393A4 (en) NON-ORIENTED SILICON STEEL PLATE AND MANUFACTURING METHOD FOR IT
EP3633059A4 (en) Non-oriented electromagnetic steel sheet and production method therefor
EP4603605A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT AS WELL AS MOTOR CORE
EP4467679A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING IT
EP4640889A4 (en) NON-ORIENTED ELECTRO-STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4582567A4 (en) GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
EP4455345A4 (en) Grain-oriented electrical steel sheet and manufacturing process therefor
EP4603606A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING IT
EP4365318A4 (en) Non-oriented electromagnetic steel sheet and method for manufacturing same
EP4317474A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET
EP4474494A4 (en) GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD THEREFOR
EP4296381A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD THEREOF
EP4640852A4 (en) GRAIN-ORIENTED ELECTROSTEAL SHEET AND MANUFACTURING METHOD FOR IT
EP4265747A4 (en) GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING PROCESS THEREOF
EP4560044A4 (en) HOT-ROLLED STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4265750A4 (en) Non-oriented electrical steel sheet and manufacturing process therefor
EP4640891A4 (en) NON-ORIENTED ELECTRO-STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4624615A4 (en) GRAIN-ORIENTED ELECTROSTEAL SHEET AND MANUFACTURING METHOD FOR IT
EP4600386A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4621092A4 (en) HOT-ROLLED STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4403661A4 (en) THICK STEEL SHEET AND MANUFACTURING METHOD FOR IT
EP4592412A4 (en) NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING IT

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: 20250407

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: C21D0008120000

Ipc: C21D0006000000

A4 Supplementary search report drawn up and despatched

Effective date: 20251204

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 6/00 20060101AFI20251128BHEP

Ipc: C21D 8/12 20060101ALI20251128BHEP

Ipc: C21D 9/46 20060101ALI20251128BHEP

Ipc: C22C 38/00 20060101ALI20251128BHEP

Ipc: C22C 38/02 20060101ALI20251128BHEP

Ipc: C22C 38/04 20060101ALI20251128BHEP

Ipc: C22C 38/06 20060101ALI20251128BHEP

Ipc: C22C 38/60 20060101ALI20251128BHEP

Ipc: H01F 1/147 20060101ALI20251128BHEP

Ipc: H01F 1/16 20060101ALI20251128BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)