EP4265747A4 - GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING PROCESS THEREOF - Google Patents

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING PROCESS THEREOF Download PDF

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Publication number
EP4265747A4
EP4265747A4 EP21911419.6A EP21911419A EP4265747A4 EP 4265747 A4 EP4265747 A4 EP 4265747A4 EP 21911419 A EP21911419 A EP 21911419A EP 4265747 A4 EP4265747 A4 EP 4265747A4
Authority
EP
European Patent Office
Prior art keywords
grain
manufacturing process
steel sheet
electrical steel
oriented electrical
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
EP21911419.6A
Other languages
German (de)
French (fr)
Other versions
EP4265747A1 (en
Inventor
Minserk KWON
Seonghoon MIN
Heonjo CHOI
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4265747A1 publication Critical patent/EP4265747A1/en
Publication of EP4265747A4 publication Critical patent/EP4265747A4/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
    • 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
    • C21D8/1238—Flattening; Dressing; Flexing
    • 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
    • C22C38/004—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
    • C22C38/60—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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Chemical Treatment Of Metals (AREA)
EP21911419.6A 2020-12-21 2021-12-17 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING PROCESS THEREOF Pending EP4265747A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200180132A KR102538120B1 (en) 2020-12-21 2020-12-21 Grain oriented electrical steel sheet and method for manufacturing the same
PCT/KR2021/019327 WO2022139352A1 (en) 2020-12-21 2021-12-17 Grain-oriented electrical steel sheet, and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP4265747A1 EP4265747A1 (en) 2023-10-25
EP4265747A4 true EP4265747A4 (en) 2024-06-26

Family

ID=82158285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21911419.6A Pending EP4265747A4 (en) 2020-12-21 2021-12-17 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING PROCESS THEREOF

Country Status (6)

Country Link
US (1) US20240035128A1 (en)
EP (1) EP4265747A4 (en)
JP (1) JP7818602B2 (en)
KR (1) KR102538120B1 (en)
CN (1) CN116888284B (en)
WO (1) WO2022139352A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102597512B1 (en) * 2020-12-22 2023-11-01 주식회사 포스코 Grain oriented electrical steel sheet and method for manufacturing the same
KR20250091289A (en) * 2022-11-22 2025-06-20 닛폰세이테츠 가부시키가이샤 Directional electrical steel sheet and method for manufacturing the same
CN120225709A (en) * 2022-11-22 2025-06-27 日本制铁株式会社 Grain-oriented electrical steel sheet and method for producing same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4224957B2 (en) * 2001-07-24 2009-02-18 Ｊｆｅスチール株式会社 Method for producing grain-oriented electrical steel sheet having no undercoat
JP2012031515A (en) * 2010-06-30 2012-02-16 Jfe Steel Corp Grain-oriented magnetic steel sheet, and method of manufacturing the same
JP2012177149A (en) * 2011-02-25 2012-09-13 Jfe Steel Corp Grain-oriented silicon steel sheet, and method for manufacturing the same
CN103025903A (en) * 2010-08-06 2013-04-03 杰富意钢铁株式会社 Oriented electromagnetic steel plate and production method for same
US20170313887A1 (en) * 2014-11-14 2017-11-02 Posco Insulating coating composition for oriented electrical steel sheet, oriented electrical steel sheet having insulating coating formed on surface thereof by using same, and preparation method therefor
WO2019182154A1 (en) * 2018-03-22 2019-09-26 日本製鉄株式会社 Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
EP4269651A1 (en) * 2020-12-22 2023-11-01 POSCO Co., Ltd Grain oriented electrical steel sheet and method for manufacturing same

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210215A (en) * 1985-07-05 1987-01-19 Kawasaki Steel Corp Ultra-low iron loss grain oriented silicon steel sheet and its production
CA2032502C (en) * 1989-05-08 1997-10-14 Toshito Takamiya Method of producing grain oriented silicon steel sheets having improved magnetic properties
WO2008047999A1 (en) * 2006-10-18 2008-04-24 Posco Annealing separating agent for grain oriented electrical steel sheet having uniform glass film and excellent magnetic properties and method of manufacturig the same
CN101659799B (en) * 2009-09-11 2012-08-22 艾宝魁 Electric steel insulating paint, and preparation method and coating method thereof
JP5754097B2 (en) * 2010-08-06 2015-07-22 Ｊｆｅスチール株式会社 Oriented electrical steel sheet and manufacturing method thereof
US9183984B2 (en) * 2010-08-06 2015-11-10 Jfe Steel Corporation Grain oriented electrical steel sheet and method for manufacturing the same
JP5729014B2 (en) * 2011-02-25 2015-06-03 Ｊｆｅスチール株式会社 Method for producing grain-oriented electrical steel sheet
JP5896112B2 (en) * 2011-10-14 2016-03-30 Ｊｆｅスチール株式会社 Oriented electrical steel sheet, method of manufacturing the same, and transformer
WO2013175733A1 (en) * 2012-05-24 2013-11-28 Ｊｆｅスチール株式会社 Method for manufacturing grain-oriented electrical steel sheet
JP6156646B2 (en) * 2013-10-30 2017-07-05 Ｊｆｅスチール株式会社 Oriented electrical steel sheet with excellent magnetic properties and coating adhesion
KR101568020B1 (en) * 2013-12-23 2015-11-10 주식회사 포스코 Grain-orinented electrical steel sheet and method for manufacturing the same
KR101651431B1 (en) * 2014-11-14 2016-08-26 주식회사 포스코 Method of manufacturing oriented electrical steels
KR101736627B1 (en) * 2015-12-22 2017-05-17 주식회사 포스코 Grain oriented electrical steel sheet having low core loss and excellent insulation property, and method for manufacturing the same
JP6508437B2 (en) * 2016-12-14 2019-05-08 Ｊｆｅスチール株式会社 Directional electromagnetic steel sheet and method of manufacturing the same
KR101904308B1 (en) * 2016-12-22 2018-10-04 주식회사 포스코 Composition for forminginsulating film and method for forming insulation film using that, oriented ecectrical steel sheet and manufacturing method for oriented ecectrical steel sheet
JP6880814B2 (en) * 2017-02-21 2021-06-02 日本製鉄株式会社 Electrical steel sheet and its manufacturing method
CA3061297C (en) * 2017-05-12 2022-06-14 Jfe Steel Corporation Grain-oriented electrical steel sheet and method for producing the same
WO2019013348A1 (en) * 2017-07-13 2019-01-17 新日鐵住金株式会社 Oriented electromagnetic steel sheet
JP7031364B2 (en) * 2018-02-26 2022-03-08 日本製鉄株式会社 Manufacturing method of grain-oriented electrical steel sheet
JP7200687B2 (en) * 2019-01-16 2023-01-10 日本製鉄株式会社 Grain-oriented electrical steel sheet and manufacturing method thereof
CN109593927B (en) * 2019-02-18 2020-09-01 安徽工业大学 Method for producing grain-oriented pure iron by adopting secondary annealing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4224957B2 (en) * 2001-07-24 2009-02-18 Ｊｆｅスチール株式会社 Method for producing grain-oriented electrical steel sheet having no undercoat
JP2012031515A (en) * 2010-06-30 2012-02-16 Jfe Steel Corp Grain-oriented magnetic steel sheet, and method of manufacturing the same
CN103025903A (en) * 2010-08-06 2013-04-03 杰富意钢铁株式会社 Oriented electromagnetic steel plate and production method for same
JP2012177149A (en) * 2011-02-25 2012-09-13 Jfe Steel Corp Grain-oriented silicon steel sheet, and method for manufacturing the same
US20170313887A1 (en) * 2014-11-14 2017-11-02 Posco Insulating coating composition for oriented electrical steel sheet, oriented electrical steel sheet having insulating coating formed on surface thereof by using same, and preparation method therefor
WO2019182154A1 (en) * 2018-03-22 2019-09-26 日本製鉄株式会社 Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
EP3770281A1 (en) * 2018-03-22 2021-01-27 Nippon Steel Corporation Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
EP4269651A1 (en) * 2020-12-22 2023-11-01 POSCO Co., Ltd Grain oriented electrical steel sheet and method for manufacturing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022139352A1 *

Also Published As

Publication number Publication date
WO2022139352A1 (en) 2022-06-30
KR20220089467A (en) 2022-06-28
US20240035128A1 (en) 2024-02-01
EP4265747A1 (en) 2023-10-25
CN116888284A (en) 2023-10-13
JP2024503998A (en) 2024-01-30
KR102538120B1 (en) 2023-05-26
JP7818602B2 (en) 2026-02-20
CN116888284B (en) 2025-10-14

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