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DE69823771D1 - METHOD FOR PRODUCING CORNORIENTED ELECTRIC STEEL SHEETS, IN PARTICULAR FOR MAGNETIC CORES OF TRANSFORMERS - Google Patents

METHOD FOR PRODUCING CORNORIENTED ELECTRIC STEEL SHEETS, IN PARTICULAR FOR MAGNETIC CORES OF TRANSFORMERS

Info

Publication number
DE69823771D1
DE69823771D1 DE69823771T DE69823771T DE69823771D1 DE 69823771 D1 DE69823771 D1 DE 69823771D1 DE 69823771 T DE69823771 T DE 69823771T DE 69823771 T DE69823771 T DE 69823771T DE 69823771 D1 DE69823771 D1 DE 69823771D1
Authority
DE
Germany
Prior art keywords
less
cornoriented
transformers
producing
mass
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.)
Expired - Lifetime
Application number
DE69823771T
Other languages
German (de)
Other versions
DE69823771T2 (en
Inventor
Jean-Claude Bavay
Jacques Castel
Freddy Messeant
Philippe Martin
Frederic Mazurier
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.)
UGO ISBERGUES
Original Assignee
UGO ISBERGUES
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 UGO ISBERGUES filed Critical UGO ISBERGUES
Application granted granted Critical
Publication of DE69823771D1 publication Critical patent/DE69823771D1/en
Publication of DE69823771T2 publication Critical patent/DE69823771T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C21D8/1216—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
    • C21D8/1261—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 following hot rolling
    • 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
    • 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
    • C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
    • 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
    • C21D8/1288—Application of a tension-inducing coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

The invention concerns a method for making an electric sheet steel with oriented grains characterised in that the slab or strip has the following composition: less than 0.1 % carbon, more than 2.5 % silicon, less than 0.006 % sulphur, more than 0.002 % manganese, more than 0.008 % aluminium, more than 0.004 nitrogen, more than 0.02 % copper, less than 0.02 % tin. The method consists in subjecting the above slab to temperature less than 1350 DEG C and hot rolling such that: the percentage by mass of non-precipitated sulphur in the form of coarse particles of average diameter not less than 300 nanometers (nm) is higher than 0.004 %; the percentage by mass of precipitated nitrogen only on the form of fine particles of average diameter less than 100 nm is less than 40 % of the total percentage by mass of nitrogen.
DE69823771T 1997-03-21 1998-03-18 METHOD FOR PRODUCING CORNORATED ELECTROSTAHLBELCHEN, ESPECIALLY FOR MAGNETIC CORDS OF TRANSFORMERS Expired - Lifetime DE69823771T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9703451A FR2761081B1 (en) 1997-03-21 1997-03-21 METHOD FOR MANUFACTURING AN ELECTRIC STEEL SHEET WITH ORIENTED GRAINS FOR THE MANUFACTURE, IN PARTICULAR OF MAGNETIC CIRCUITS OF TRANSFORMERS
FR9703451 1997-03-21
PCT/FR1998/000540 WO1998042882A1 (en) 1997-03-21 1998-03-18 Method for making an electric sheet steel with oriented grains for the manufacture of transformer magnetic circuits in particular

Publications (2)

Publication Number Publication Date
DE69823771D1 true DE69823771D1 (en) 2004-06-17
DE69823771T2 DE69823771T2 (en) 2005-05-12

Family

ID=9505038

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69823771T Expired - Lifetime DE69823771T2 (en) 1997-03-21 1998-03-18 METHOD FOR PRODUCING CORNORATED ELECTROSTAHLBELCHEN, ESPECIALLY FOR MAGNETIC CORDS OF TRANSFORMERS

Country Status (10)

Country Link
EP (1) EP0912768B1 (en)
JP (1) JP2001506704A (en)
KR (1) KR20000011149A (en)
CN (1) CN1220704A (en)
AT (1) ATE266742T1 (en)
CZ (1) CZ375398A3 (en)
DE (1) DE69823771T2 (en)
FR (1) FR2761081B1 (en)
PL (1) PL330039A1 (en)
WO (1) WO1998042882A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1162280B1 (en) * 2000-06-05 2013-08-07 Nippon Steel & Sumitomo Metal Corporation Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties
JP4272557B2 (en) * 2004-02-12 2009-06-03 新日本製鐵株式会社 Method for producing unidirectional electrical steel sheet with excellent magnetic properties
RU2363739C1 (en) * 2005-06-10 2009-08-10 Ниппон Стил Корпорейшн Textured electric sheet metals with extremely high magnetic properties and method of its manufacturing
JP4823719B2 (en) * 2006-03-07 2011-11-24 新日本製鐵株式会社 Method for producing grain-oriented electrical steel sheet with extremely excellent magnetic properties
CN103878175A (en) * 2012-12-21 2014-06-25 鞍钢股份有限公司 Hot rolling method in low-grade cold-rolled silicon steel hot rolling process
DE102014112286A1 (en) * 2014-08-27 2016-03-03 Thyssenkrupp Ag Method for producing an embroidered packaging steel
KR101696627B1 (en) * 2014-11-26 2017-01-16 주식회사 포스코 Annealing separating agent composition for base coating free electrical steel sheet, and method for manufacturing base coating free electrical steel sheet using the same
WO2017094797A1 (en) * 2015-12-04 2017-06-08 Ｊｆｅスチール株式会社 Method for manufacturing grain-oriented electromagnetic steel sheet
CN106319174B (en) * 2016-09-23 2018-10-16 武汉钢铁有限公司 Improve the annealing separating agent of low temperature casting blank heating high magnetic induction grain-oriented silicon steel bottom layer quality
CN111020140A (en) * 2019-12-17 2020-04-17 无锡晶龙华特电工有限公司 Magnesium oxide annealing separant for oriented silicon steel with excellent magnetism and coating process thereof
CN111996354B (en) * 2020-08-27 2022-04-19 上海实业振泰化工有限公司 Preparation method of liquid additive for oriented silicon steel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948934B2 (en) * 1981-05-30 1984-11-29 新日本製鐵株式会社 Manufacturing method of high magnetic flux density unidirectional electrical steel sheet
DE4311151C1 (en) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Grain-orientated electro-steel sheets with good properties
FR2731713B1 (en) * 1995-03-14 1997-04-11 Ugine Sa PROCESS FOR THE MANUFACTURE OF A SHEET OF ELECTRIC STEEL WITH ORIENTED GRAINS FOR THE PRODUCTION OF MAGNETIC TRANSFORMER CIRCUITS IN PARTICULAR

Also Published As

Publication number Publication date
EP0912768B1 (en) 2004-05-12
JP2001506704A (en) 2001-05-22
DE69823771T2 (en) 2005-05-12
PL330039A1 (en) 1999-04-26
CZ375398A3 (en) 1999-07-14
CN1220704A (en) 1999-06-23
FR2761081A1 (en) 1998-09-25
ATE266742T1 (en) 2004-05-15
FR2761081B1 (en) 1999-04-30
KR20000011149A (en) 2000-02-25
EP0912768A1 (en) 1999-05-06
WO1998042882A1 (en) 1998-10-01

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