EP0577124A3 - Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for producing the same - Google Patents

Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for producing the same Download PDF

Info

Publication number
EP0577124A3
EP0577124A3 EP19930110517 EP93110517A EP0577124A3 EP 0577124 A3 EP0577124 A3 EP 0577124A3 EP 19930110517 EP19930110517 EP 19930110517 EP 93110517 A EP93110517 A EP 93110517A EP 0577124 A3 EP0577124 A3 EP 0577124A3
Authority
EP
European Patent Office
Prior art keywords
producing
steel sheet
magnetic flux
flux density
same
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.)
Granted
Application number
EP19930110517
Other versions
EP0577124B1 (en
EP0577124A2 (en
Inventor
Osamu Tanaka
Katsuro Kuroki
Maremizu Ishiba
Hiroaki Masui
Tsutomu Haratani
Yoshio Nakamura
Hotaka Honma
Yoichi Mishima
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
Priority claimed from JP4175790A external-priority patent/JP2691828B2/en
Priority claimed from JP4206795A external-priority patent/JPH0649654A/en
Priority claimed from JP4220500A external-priority patent/JP2671084B2/en
Priority claimed from JP4284787A external-priority patent/JPH06136552A/en
Priority claimed from JP30272892A external-priority patent/JP2671088B2/en
Priority claimed from JP4340746A external-priority patent/JPH06188116A/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP0577124A2 publication Critical patent/EP0577124A2/en
Publication of EP0577124A3 publication Critical patent/EP0577124A3/en
Publication of EP0577124B1 publication Critical patent/EP0577124B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277—Modifying the physical properties 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
    • 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
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest 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 by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localized treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
EP93110517A 1992-07-02 1993-07-01 Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for producing the same Expired - Lifetime EP0577124B1 (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
JP175790/92 1992-07-02
JP17579092 1992-07-02
JP4175790A JP2691828B2 (en) 1992-07-02 1992-07-02 Ultra low iron loss grain oriented electrical steel sheet with extremely high magnetic flux density.
JP4206795A JPH0649654A (en) 1992-08-03 1992-08-03 Silicon steel sheet having excellent magnetism after magnetic domain control and its production
JP206795/92 1992-08-03
JP20679592 1992-08-03
JP220500/92 1992-08-19
JP22050092 1992-08-19
JP4220500A JP2671084B2 (en) 1992-08-19 1992-08-19 High magnetic flux density grain-oriented electrical steel sheet having excellent iron loss characteristics and method for producing the same
JP28478792 1992-10-22
JP4284787A JPH06136552A (en) 1992-10-22 1992-10-22 Grain-oriented silicon steel sheet excellent in magnetic core loss and its production
JP284787/92 1992-10-22
JP30272892 1992-11-12
JP302728/92 1992-11-12
JP30272892A JP2671088B2 (en) 1992-11-12 1992-11-12 High magnetic flux density grain-oriented electrical steel sheet with excellent magnetic properties and remarkably excellent iron core workability, and manufacturing method thereof
JP34074692 1992-12-21
JP4340746A JPH06188116A (en) 1992-12-21 1992-12-21 Oriented silicon steel plate for low core loss and high flux density and manufacture thereof
JP340746/92 1992-12-21

Publications (3)

Publication Number Publication Date
EP0577124A2 EP0577124A2 (en) 1994-01-05
EP0577124A3 true EP0577124A3 (en) 1994-09-21
EP0577124B1 EP0577124B1 (en) 2002-10-16

Family

ID=27553438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110517A Expired - Lifetime EP0577124B1 (en) 1992-07-02 1993-07-01 Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for producing the same

Country Status (3)

Country Link
EP (1) EP0577124B1 (en)
KR (1) KR960009170B1 (en)
DE (1) DE69332394T2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3475258B2 (en) * 1994-05-23 2003-12-08 株式会社海水化学研究所 Ceramic film forming agent and method for producing the same
JP3598590B2 (en) * 1994-12-05 2004-12-08 Ｊｆｅスチール株式会社 Unidirectional electrical steel sheet with high magnetic flux density and low iron loss
KR101262516B1 (en) 2010-11-10 2013-05-08 주식회사 포스코 Wire rod, steel wire having superior magnetic property and method for manufacturing thereof
CN103041966B (en) 2011-10-17 2014-12-24 宝山钢铁股份有限公司 Method for producing ultra-thick insulating coating on surface of electrical steel
PL2949767T3 (en) * 2012-11-26 2019-10-31 Nippon Steel & Sumitomo Metal Corp Grain-oriented electrical steel sheet and method for manufacturing said sheet
KR101480498B1 (en) * 2012-12-28 2015-01-08 주식회사 포스코 Oriented electrical steel sheet and method for manufacturing the same
WO2015012562A1 (en) 2013-07-24 2015-01-29 주식회사 포스코 Directional electric steel plate and method for manufacturing same
JP6191529B2 (en) * 2014-03-31 2017-09-06 Ｊｆｅスチール株式会社 Primary recrystallization annealing plate for grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
WO2019013347A1 (en) 2017-07-13 2019-01-17 新日鐵住金株式会社 Oriented electromagnetic steel sheet, and manufacturing method of oriented electromagnetic steel sheet
DE102017220718A1 (en) * 2017-11-20 2019-05-23 Thyssenkrupp Ag Optimization of nitrogen levels during bell annealing II
CA3086308C (en) 2018-01-31 2023-06-20 Jfe Steel Corporation Grain-oriented electrical steel sheet, wound transformer core using the same, and method for producing wound core
CN112469840B (en) 2018-07-31 2022-07-08 日本制铁株式会社 Grain-oriented electromagnetic steel sheet
WO2020027219A1 (en) * 2018-07-31 2020-02-06 日本製鉄株式会社 Grain-oriented electromagnetic steel sheet
US11851726B2 (en) 2018-07-31 2023-12-26 Nippon Steel Corporation Grain oriented electrical steel sheet
RU2771282C1 (en) * 2019-01-16 2022-04-29 Ниппон Стил Корпорейшн Electrical steel sheet with oriented grain structure and method for its manufacture
WO2020149329A1 (en) * 2019-01-16 2020-07-23 日本製鉄株式会社 Grain-oriented electromagnetic steel sheet and method for manufacturing same
EP3715480A1 (en) * 2019-03-26 2020-09-30 Thyssenkrupp Electrical Steel Gmbh Iron-silicon material suitable for medium frequency applications
US20210395851A1 (en) * 2020-06-17 2021-12-23 Axalta Coating Systems Ip Co., Llc Coated grain oriented electrical steel plates, and methods of producing the same

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671337A (en) * 1969-02-21 1972-06-20 Nippon Steel Corp Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics
US3856568A (en) * 1971-09-27 1974-12-24 Nippon Steel Corp Method for forming an insulating film on an oriented silicon steel sheet
US4032366A (en) * 1975-05-23 1977-06-28 Allegheny Ludlum Industries, Inc. Grain-oriented silicon steel and processing therefor
GB1480514A (en) * 1973-10-31 1977-07-20 Kawasaki Steel Co Production of grain-orientated steel sheets
JPS5322113A (en) * 1976-08-13 1978-03-01 Kawasaki Steel Co Process for making single anisotropic silicon steel plates with metallic brightness and separating compounds for annealing used therefor
JPS54120215A (en) * 1978-03-10 1979-09-18 Nippon Steel Corp High temperature annealing method of electrical sheets
FR2445377A1 (en) * 1978-12-27 1980-07-25 Kawasaki Steel Co
JPS5665983A (en) * 1979-10-15 1981-06-04 Allegheny Ludlum Ind Inc Silicon steel
JPS5996278A (en) * 1982-11-25 1984-06-02 Kawasaki Steel Corp Separating agent for annealing
EP0305966A1 (en) * 1987-08-31 1989-03-08 Nippon Steel Corporation Method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property
EP0392534A1 (en) * 1989-04-14 1990-10-17 Nippon Steel Corporation Method of producing oriented electrical steel sheet having superior magnetic properties
EP0420238A2 (en) * 1989-09-28 1991-04-03 Nippon Steel Corporation Process for preparing unidirectional silicon steel sheet having high magnetic flux density
EP0488726A2 (en) * 1990-11-30 1992-06-03 Kawasaki Steel Corporation Thin decarburized grain oriented silicon steel sheet having improved coating and magnetic characteristics
EP0525467A2 (en) * 1991-07-10 1993-02-03 Nippon Steel Corporation Grain oriented silicon steel sheet having excellent primary glass film properties
EP0565029A1 (en) * 1992-04-07 1993-10-13 Nippon Steel Corporation Grain oriented silicon steel sheet having low core loss and method of manufacturing same
EP0566986A1 (en) * 1992-04-16 1993-10-27 Nippon Steel Corporation Process for production of grain oriented electrical steel sheet having excellent magnetic properties

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131976A (en) * 1983-12-19 1985-07-13 Kawasaki Steel Corp Manufacture of grain-oriented silicon steel sheet having superior iron loss characteristic
JPS60145382A (en) * 1984-01-09 1985-07-31 Nippon Steel Corp Production of grain-oriented electrical steel sheet having excellent magnetic characteristic and film characteristic

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671337A (en) * 1969-02-21 1972-06-20 Nippon Steel Corp Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics
US3856568A (en) * 1971-09-27 1974-12-24 Nippon Steel Corp Method for forming an insulating film on an oriented silicon steel sheet
JPS5328375B2 (en) * 1971-09-27 1978-08-14
GB1480514A (en) * 1973-10-31 1977-07-20 Kawasaki Steel Co Production of grain-orientated steel sheets
US4032366A (en) * 1975-05-23 1977-06-28 Allegheny Ludlum Industries, Inc. Grain-oriented silicon steel and processing therefor
JPS5322113A (en) * 1976-08-13 1978-03-01 Kawasaki Steel Co Process for making single anisotropic silicon steel plates with metallic brightness and separating compounds for annealing used therefor
JPS54120215A (en) * 1978-03-10 1979-09-18 Nippon Steel Corp High temperature annealing method of electrical sheets
FR2445377A1 (en) * 1978-12-27 1980-07-25 Kawasaki Steel Co
JPS5665983A (en) * 1979-10-15 1981-06-04 Allegheny Ludlum Ind Inc Silicon steel
US4367100A (en) * 1979-10-15 1983-01-04 Allegheny Ludlum Steel Corporation Silicon steel and processing therefore
JPS5996278A (en) * 1982-11-25 1984-06-02 Kawasaki Steel Corp Separating agent for annealing
EP0305966A1 (en) * 1987-08-31 1989-03-08 Nippon Steel Corporation Method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property
EP0392534A1 (en) * 1989-04-14 1990-10-17 Nippon Steel Corporation Method of producing oriented electrical steel sheet having superior magnetic properties
EP0420238A2 (en) * 1989-09-28 1991-04-03 Nippon Steel Corporation Process for preparing unidirectional silicon steel sheet having high magnetic flux density
EP0488726A2 (en) * 1990-11-30 1992-06-03 Kawasaki Steel Corporation Thin decarburized grain oriented silicon steel sheet having improved coating and magnetic characteristics
EP0525467A2 (en) * 1991-07-10 1993-02-03 Nippon Steel Corporation Grain oriented silicon steel sheet having excellent primary glass film properties
EP0565029A1 (en) * 1992-04-07 1993-10-13 Nippon Steel Corporation Grain oriented silicon steel sheet having low core loss and method of manufacturing same
EP0566986A1 (en) * 1992-04-16 1993-10-27 Nippon Steel Corporation Process for production of grain oriented electrical steel sheet having excellent magnetic properties

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 7815, Derwent World Patents Index; Class M27, AN 78-27745A *
PATENT ABSTRACTS OF JAPAN vol. 3, no. 142 (C - 65) 24 November 1979 (1979-11-24) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 212 (C - 244) 27 September 1984 (1984-09-27) *

Also Published As

Publication number Publication date
EP0577124B1 (en) 2002-10-16
KR940005812A (en) 1994-03-22
DE69332394T2 (en) 2003-06-12
DE69332394D1 (en) 2002-11-21
KR960009170B1 (en) 1996-07-16
EP0577124A2 (en) 1994-01-05

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