WO2023190328A1 - 方向性電磁鋼板及びその製造方法 - Google Patents

方向性電磁鋼板及びその製造方法 Download PDF

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Publication number
WO2023190328A1
WO2023190328A1 PCT/JP2023/012179 JP2023012179W WO2023190328A1 WO 2023190328 A1 WO2023190328 A1 WO 2023190328A1 JP 2023012179 W JP2023012179 W JP 2023012179W WO 2023190328 A1 WO2023190328 A1 WO 2023190328A1
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WO
WIPO (PCT)
Prior art keywords
magnetic domain
grain
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.)
Ceased
Application number
PCT/JP2023/012179
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English (en)
French (fr)
Japanese (ja)
Inventor
悠祐 川村
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
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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 EP23780338.2A priority Critical patent/EP4502188A4/en
Priority to CN202380021779.2A priority patent/CN118696142A/zh
Priority to US18/726,373 priority patent/US20250243558A1/en
Priority to KR1020247026899A priority patent/KR102871723B1/ko
Priority to JP2024512451A priority patent/JPWO2023190328A1/ja
Publication of WO2023190328A1 publication Critical patent/WO2023190328A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • 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
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
    • 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
    • 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
    • C21D8/1294—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 localised treatment
    • 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
    • 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
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from 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
    • 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

Definitions

  • the present disclosure relates to a grain-oriented electrical steel sheet and a method for manufacturing the same.
  • This application claims priority based on Japanese Patent Application No. 2022-052344 filed in Japan on March 28, 2022, the contents of which are incorporated herein.
  • a grain-oriented electrical steel sheet is a steel sheet that contains 7% by mass or less of Si and has a secondary recrystallized texture in which secondary recrystallized grains are accumulated in the ⁇ 110 ⁇ 001> orientation (Goss orientation).
  • Grain-oriented electrical steel sheets are mainly used as iron cores in power transformers, and there is a growing need for them to reduce noise as well as reduce energy loss (iron loss).
  • Patent Document 2 discloses that as the radius of curvature increases, the area where the magnetic domain width becomes wider due to the influence of the ⁇ angle increases.
  • Patent Document 4 discloses a grain-oriented electrical steel sheet subjected to magnetic domain refining treatment, which has iron loss characteristics and magnetostriction characteristics that include a predetermined amount of a region with a ⁇ angle of 0.5° or less and a region of 2° to 6°. Discloses a grain-oriented electrical steel sheet with excellent properties.
  • Patent Document 5 discloses that tensile stress is applied as a method for refining the magnetic domains of a grain-oriented electrical steel sheet. Patent Document 5 states that in order to promote magnetic domain refinement and reduce iron loss, the tensile stress applied inside the steel plate in the thickness direction should have a maximum value of 40 MPa or more and less than the yield stress of the steel plate material. is listed.
  • FIG. 1A and 1B are graphs showing regions in which the magnetic domain width has been subdivided by 50 ⁇ m or more before and after the magnetic domain subdivision processing shown in FIGS. 1A and 1B.
  • FIG. It is a graph showing the relationship between the magnetic domain width before laser irradiation and the magnetic domain width after laser irradiation. It is a graph showing the relationship between the ⁇ angle and the average width of 180° magnetic domains of grain-oriented electrical steel sheets.
  • the grain-oriented electrical steel sheet 50 has a stress introduction line 90, that is, a portion where tensile stress exists in the thickness direction.
  • the tensile stress existing in the plate thickness direction is a component in the plate thickness direction of the tensile stress introduced into the grain-oriented electrical steel sheet 50 using the apparatus illustrated in FIG. 5 or the like.
  • the number of measurement points is, for example, 10. If the tensile stress in the thickness direction is 40 MPa or more in at least one location of the grain-oriented electrical steel sheet 50, the maximum value of the tensile stress in the thickness direction at the stress treatment line of the grain-oriented electrical steel sheet 50 is 40 MPa or more. It is determined that there is. The measurement of the tensile stress may be stopped when a measurement point where the tensile stress in the plate thickness direction is 40 MPa or more is discovered.
  • the magnetic domain control processed line 52 determines whether For example, if the length of one magnetic domain control processed line 52 included in the sample is X cm, and the number of stress introduction lines 90 included in the magnetic domain control processed line 52 is y, then the magnetic domain control processed line 52, it is determined that there are stress introduction lines 90 at y/X locations on average per 1 cm. Furthermore, whether or not the standard deviation of the length of the non-magnetic domain refining process line is 20 ⁇ m or less in each of the magnetic domain control process lines 52 that are determined to include stress introducing lines 90 at 10 or more locations per 1 cm on average. Determine.
  • the plate thickness is 0.20 mm
  • the magnetic flux density B8 when excited at 800 A/m is 1.87 T or more
  • the excitation frequency is 50 Hz
  • the iron loss measured at an excitation magnetic flux density of 1.7 T is 0.
  • Magnetic domain refining treatment was carried out under various conditions shown in Table 1 on the same lot of grain-oriented electrical steel sheets having a power of 80 W/kg or less.
  • the irradiation pitch PL, the average irradiation energy density Ua, and the angle between the magnetic domain control processing line and the direction perpendicular to the rolling direction were set to constant values.
  • the noise and iron loss of the grain-oriented electrical steel sheet that had been subjected to magnetic domain refining treatment thus obtained were evaluated and are listed in Tables 2 and 3. In Table 2, inappropriate values are underlined.
  • Example where the tensile stress existence ratio in the first region is inappropriate stress was uniformly introduced.
  • the tensile stress presence ratio in both the first region and the second region was set to a low level.
  • noise was suppressed to a low level, but low iron loss was not achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
PCT/JP2023/012179 2022-03-28 2023-03-27 方向性電磁鋼板及びその製造方法 Ceased WO2023190328A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP23780338.2A EP4502188A4 (en) 2022-03-28 2023-03-27 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
CN202380021779.2A CN118696142A (zh) 2022-03-28 2023-03-27 方向性电磁钢板及其制造方法
US18/726,373 US20250243558A1 (en) 2022-03-28 2023-03-27 Grain-oriented electrical steel sheet and manufacturing method therefor
KR1020247026899A KR102871723B1 (ko) 2022-03-28 2023-03-27 방향성 전자 강판 및 그 제조 방법
JP2024512451A JPWO2023190328A1 (https=) 2022-03-28 2023-03-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-052344 2022-03-28
JP2022052344 2022-03-28

Publications (1)

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WO2023190328A1 true WO2023190328A1 (ja) 2023-10-05

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PCT/JP2023/012179 Ceased WO2023190328A1 (ja) 2022-03-28 2023-03-27 方向性電磁鋼板及びその製造方法

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US (1) US20250243558A1 (https=)
EP (1) EP4502188A4 (https=)
JP (1) JPWO2023190328A1 (https=)
KR (1) KR102871723B1 (https=)
CN (1) CN118696142A (https=)
WO (1) WO2023190328A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025070781A1 (ja) * 2023-09-27 2025-04-03 日本製鉄株式会社 方向性電磁鋼板、及び方向性電磁鋼板の製造方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55119125A (en) * 1979-03-05 1980-09-12 Nippon Steel Corp Manufacture of low iron loss one-directional silicon steel plate
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
JP2006144058A (ja) 2004-11-18 2006-06-08 Nippon Steel Corp 磁気特性の優れた方向性電磁鋼板およびその製造方法
JP2008127632A (ja) 2006-11-21 2008-06-05 Nippon Steel Corp 低鉄損一方向性電磁鋼板
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
CN106282512A (zh) * 2015-05-11 2017-01-04 宝山钢铁股份有限公司 低噪音变压器用取向硅钢片制造方法
JP2020169373A (ja) * 2019-04-05 2020-10-15 日本製鉄株式会社 方向性電磁鋼板
JP2022052344A (ja) 2020-09-23 2022-04-04 オリオン機械工業株式会社 集積装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55119125A (en) * 1979-03-05 1980-09-12 Nippon Steel Corp Manufacture of low iron loss one-directional silicon steel plate
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
JP2006144058A (ja) 2004-11-18 2006-06-08 Nippon Steel Corp 磁気特性の優れた方向性電磁鋼板およびその製造方法
JP2008127632A (ja) 2006-11-21 2008-06-05 Nippon Steel Corp 低鉄損一方向性電磁鋼板
JP5241095B2 (ja) 2006-11-21 2013-07-17 新日鐵住金株式会社 低鉄損一方向性電磁鋼板
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
CN106282512A (zh) * 2015-05-11 2017-01-04 宝山钢铁股份有限公司 低噪音变压器用取向硅钢片制造方法
JP2020169373A (ja) * 2019-04-05 2020-10-15 日本製鉄株式会社 方向性電磁鋼板
JP2022052344A (ja) 2020-09-23 2022-04-04 オリオン機械工業株式会社 集積装置

Non-Patent Citations (2)

* 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, 4 March 2006 (2006-03-04), pages 307 - 313, XP025025471, DOI: 10.1016/j.ultramic.2005.10.001
See also references of EP4502188A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025070781A1 (ja) * 2023-09-27 2025-04-03 日本製鉄株式会社 方向性電磁鋼板、及び方向性電磁鋼板の製造方法

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JPWO2023190328A1 (https=) 2023-10-05
KR102871723B1 (ko) 2025-10-17
US20250243558A1 (en) 2025-07-31
EP4502188A1 (en) 2025-02-05
KR20240136374A (ko) 2024-09-13
EP4502188A4 (en) 2025-07-16
CN118696142A (zh) 2024-09-24

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