WO2025070776A1 - 方向性電磁鋼板、及び方向性電磁鋼板の製造方法 - Google Patents

方向性電磁鋼板、及び方向性電磁鋼板の製造方法 Download PDF

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Publication number
WO2025070776A1
WO2025070776A1 PCT/JP2024/034793 JP2024034793W WO2025070776A1 WO 2025070776 A1 WO2025070776 A1 WO 2025070776A1 JP 2024034793 W JP2024034793 W JP 2024034793W WO 2025070776 A1 WO2025070776 A1 WO 2025070776A1
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WO
WIPO (PCT)
Prior art keywords
magnetic domain
domain control
grain
steel sheet
electrical steel
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
PCT/JP2024/034793
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English (en)
French (fr)
Japanese (ja)
Inventor
稜 松原
悠祐 川村
励 本間
俊之 鈴間
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
Priority to CN202480060082.0A priority Critical patent/CN121909297A/zh
Priority to JP2025549209A priority patent/JPWO2025070776A1/ja
Publication of WO2025070776A1 publication Critical patent/WO2025070776A1/ja
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Definitions

  • the present disclosure relates to a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet.
  • This application claims priority based on Japanese Patent Application No. 2023-166102, filed on September 27, 2023, the contents of which are incorporated herein by reference.
  • Grain-oriented electrical steel sheet is a steel sheet that contains 7 mass% or less of Si and has a secondary recrystallized texture in which secondary recrystallized grains are concentrated in the ⁇ 110 ⁇ 001> orientation (Goss orientation) with the magnetization easy axis ⁇ 001> oriented in the rolling direction.
  • Grain-oriented electrical steel sheet is mainly used as the iron core of power transformers. Reduction of energy loss (iron loss) is required for grain-oriented electrical steel sheet.
  • the magnetic domain width can be narrowed by irradiating the surface of the grain-oriented electromagnetic steel sheet with a laser or electron beam in a direction intersecting the rolling direction to introduce thermal distortion.
  • the magnetic domain width can also be narrowed by forming grooves on the surface of the grain-oriented electromagnetic steel sheet in a direction intersecting the rolling direction. Methods for forming grooves include a method using a laser or electron beam, a method using mechanical processing such as gears, and a method using chemical processing such as etching.
  • Patent Documents 1 to 3 various improved techniques for magnetic domain refinement have been proposed to provide grain-oriented electrical steel sheets with good iron loss characteristics.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Electromagnetism (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
PCT/JP2024/034793 2023-09-27 2024-09-27 方向性電磁鋼板、及び方向性電磁鋼板の製造方法 Pending WO2025070776A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202480060082.0A CN121909297A (zh) 2023-09-27 2024-09-27 方向性电磁钢板及方向性电磁钢板的制造方法
JP2025549209A JPWO2025070776A1 (https=) 2023-09-27 2024-09-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023166102 2023-09-27
JP2023-166102 2023-09-27

Publications (1)

Publication Number Publication Date
WO2025070776A1 true WO2025070776A1 (ja) 2025-04-03

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Family Applications (1)

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PCT/JP2024/034793 Pending WO2025070776A1 (ja) 2023-09-27 2024-09-27 方向性電磁鋼板、及び方向性電磁鋼板の製造方法

Country Status (3)

Country Link
JP (1) JPWO2025070776A1 (https=)
CN (1) CN121909297A (https=)
WO (1) WO2025070776A1 (https=)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11124629A (ja) * 1997-10-16 1999-05-11 Kawasaki Steel Corp 低鉄損・低騒音方向性電磁鋼板
JPH11293340A (ja) * 1998-04-08 1999-10-26 Kawasaki Steel Corp 低鉄損方向性電磁鋼板及びその製造方法
JP2012012664A (ja) 2010-06-30 2012-01-19 Jfe Steel Corp 方向性電磁鋼板の製造方法
WO2012032792A1 (ja) * 2010-09-10 2012-03-15 Ｊｆｅスチール株式会社 方向性電磁鋼板およびその製造方法
JP2012057219A (ja) 2010-09-09 2012-03-22 Jfe Steel Corp 方向性電磁鋼板およびその製造方法
JP2012057218A (ja) 2010-09-09 2012-03-22 Jfe Steel Corp 方向性電磁鋼板およびその製造方法
JP2012067349A (ja) * 2010-09-22 2012-04-05 Jfe Steel Corp 方向性電磁鋼板の製造方法
KR20170074608A (ko) * 2015-12-22 2017-06-30 주식회사 포스코 방향성 전기강판 및 그 제조방법
JP2020169373A (ja) * 2019-04-05 2020-10-15 日本製鉄株式会社 方向性電磁鋼板
JP2022515236A (ja) * 2018-12-19 2022-02-17 ポスコ 方向性電磁鋼板およびその製造方法
WO2023190331A1 (ja) * 2022-03-28 2023-10-05 日本製鉄株式会社 方向性電磁鋼板及びその製造方法
JP2023166102A (ja) 2022-05-09 2023-11-21 ダイハツ工業株式会社 車両用制御装置

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11124629A (ja) * 1997-10-16 1999-05-11 Kawasaki Steel Corp 低鉄損・低騒音方向性電磁鋼板
JPH11293340A (ja) * 1998-04-08 1999-10-26 Kawasaki Steel Corp 低鉄損方向性電磁鋼板及びその製造方法
JP2012012664A (ja) 2010-06-30 2012-01-19 Jfe Steel Corp 方向性電磁鋼板の製造方法
JP2012057219A (ja) 2010-09-09 2012-03-22 Jfe Steel Corp 方向性電磁鋼板およびその製造方法
JP2012057218A (ja) 2010-09-09 2012-03-22 Jfe Steel Corp 方向性電磁鋼板およびその製造方法
WO2012032792A1 (ja) * 2010-09-10 2012-03-15 Ｊｆｅスチール株式会社 方向性電磁鋼板およびその製造方法
JP2012067349A (ja) * 2010-09-22 2012-04-05 Jfe Steel Corp 方向性電磁鋼板の製造方法
KR20170074608A (ko) * 2015-12-22 2017-06-30 주식회사 포스코 방향성 전기강판 및 그 제조방법
JP2022515236A (ja) * 2018-12-19 2022-02-17 ポスコ 方向性電磁鋼板およびその製造方法
JP2020169373A (ja) * 2019-04-05 2020-10-15 日本製鉄株式会社 方向性電磁鋼板
WO2023190331A1 (ja) * 2022-03-28 2023-10-05 日本製鉄株式会社 方向性電磁鋼板及びその製造方法
JP2023166102A (ja) 2022-05-09 2023-11-21 ダイハツ工業株式会社 車両用制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A.J.WILKINSON ET AL.: "High-resolution elastic strain measurement from electron backscatter diffraction patterns: New levels of sensitivity", ULTRAMICROSCOPY, vol. 106, no. 4-5, March 2006 (2006-03-01), pages 307 - 313

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CN121909297A (zh) 2026-04-21
JPWO2025070776A1 (https=) 2025-04-03

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