EP0431502A3 - Non-oriented electrical strip and method of manufacturing - Google Patents

Non-oriented electrical strip and method of manufacturing Download PDF

Info

Publication number
EP0431502A3
EP0431502A3 EP19900123040 EP90123040A EP0431502A3 EP 0431502 A3 EP0431502 A3 EP 0431502A3 EP 19900123040 EP19900123040 EP 19900123040 EP 90123040 A EP90123040 A EP 90123040A EP 0431502 A3 EP0431502 A3 EP 0431502A3
Authority
EP
European Patent Office
Prior art keywords
manufacturing
less
oriented electrical
electrical strip
rolled
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
EP19900123040
Other languages
German (de)
Other versions
EP0431502A2 (en
EP0431502B1 (en
Inventor
Rolf Dr.-Ing. Buerger
Gert Prof.-Dr. Sc. Nat. Lehmann
Wolfgang Lindner
Harry Dr.-Ing. Wich
Jochen Dr. Rer. Nat. Wieting
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.)
EBG Gesellschaft fuer Elektromagnetische Werkstoffe
Original Assignee
EBG Gesellschaft fuer Elektromagnetische Werkstoffe
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 EBG Gesellschaft fuer Elektromagnetische Werkstoffe filed Critical EBG Gesellschaft fuer Elektromagnetische Werkstoffe
Publication of EP0431502A2 publication Critical patent/EP0431502A2/en
Publication of EP0431502A3 publication Critical patent/EP0431502A3/en
Application granted granted Critical
Publication of EP0431502B1 publication Critical patent/EP0431502B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C22C38/02—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
    • 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
    • C21D8/1216—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
    • C21D8/1233—Cold 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

The invention relates to a non-grain-oriented electrical strip with large fractions of cubic texture or cubic-surface texture and a polarisation J 2500 > 1.7 T and a low remagnetisation loss, and to a manufacturing method for this. A steel ingot containing, apart from iron, less than 0.025% C, less than 0.1% Mn, 0 to 0.15% of surface-active elements, Si and Al, in such a way that the relationships (% Si) + 2(% Al) > 1.6% and (%Si) + (% Al) < 4.5% are met, is hot-rolled to a thickness of not less than 3.5 mm. The hot strip thus obtained is then cold-rolled at a degree of deformation of at least 86% without recrystallising and interannealing and, if necessary, finally annealed.
EP90123040A 1989-12-06 1990-12-01 Non-oriented electrical strip and method of manufacturing Expired - Lifetime EP0431502B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD89335290A DD299102A7 (en) 1989-12-06 1989-12-06 METHOD FOR PRODUCING NONORIENTED ELECTROBLECH
DD335290 1989-12-06

Publications (3)

Publication Number Publication Date
EP0431502A2 EP0431502A2 (en) 1991-06-12
EP0431502A3 true EP0431502A3 (en) 1993-02-03
EP0431502B1 EP0431502B1 (en) 1994-09-28

Family

ID=5614418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123040A Expired - Lifetime EP0431502B1 (en) 1989-12-06 1990-12-01 Non-oriented electrical strip and method of manufacturing

Country Status (11)

Country Link
US (1) US5258080A (en)
EP (1) EP0431502B1 (en)
JP (1) JPH04218647A (en)
KR (1) KR0177801B1 (en)
AT (1) ATE112326T1 (en)
AU (1) AU632876B2 (en)
BR (1) BR9006197A (en)
CA (1) CA2031579C (en)
DD (1) DD299102A7 (en)
DE (2) DE59007334D1 (en)
ZA (1) ZA909748B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH086135B2 (en) * 1991-04-25 1996-01-24 新日本製鐵株式会社 Manufacturing method of non-oriented electrical steel sheet with excellent magnetic properties
DE4337605C2 (en) * 1993-11-01 1996-02-08 Eko Stahl Gmbh Method for producing grain-oriented electrical steel and magnetic cores made therefrom
CA2175401C (en) * 1995-05-02 1999-08-31 Toshiro Tomida Magnetic steel sheet having excellent magnetic characteristics and blanking performance
US6139650A (en) * 1997-03-18 2000-10-31 Nkk Corporation Non-oriented electromagnetic steel sheet and method for manufacturing the same
DE69827207T2 (en) * 1997-08-15 2005-04-21 Jfe Steel Corp Electrical steel sheet with high magnetic properties and manufacturing process
US6007642A (en) * 1997-12-08 1999-12-28 National Steel Corporation Super low loss motor lamination steel
DE19918484C2 (en) * 1999-04-23 2002-04-04 Ebg Elektromagnet Werkstoffe Process for the production of non-grain oriented electrical sheet
JP4507316B2 (en) * 1999-11-26 2010-07-21 Ｊｆｅスチール株式会社 DC brushless motor
DE10055338C1 (en) * 2000-11-08 2002-03-07 Thyssenkrupp Stahl Ag Production of cold strip comprises hot rolling pre-material produced from steel, cold rolling hot strip to form cold strip, annealing at temperature which is lower than recrystallization temperature, cold deforming, and further annealing
DE10156059A1 (en) * 2001-11-16 2003-05-28 Thyssenkrupp Electrical Steel Ebg Gmbh Process for the production of non-grain-oriented electrical sheet
DE10221793C1 (en) * 2002-05-15 2003-12-04 Thyssenkrupp Electrical Steel Ebg Gmbh Non-grain oriented electrical steel or sheet and process for its manufacture
JP4269139B2 (en) * 2002-09-04 2009-05-27 住友金属工業株式会社 Soft magnetic steel sheet excellent in workability and high-frequency magnetic properties and method for producing the same
KR102043289B1 (en) * 2017-12-26 2019-11-12 주식회사 포스코 Non-oriented electrical steel sheet and method for manufacturing the same
CN112430778A (en) * 2019-08-26 2021-03-02 宝山钢铁股份有限公司 Thin non-oriented electrical steel plate and manufacturing method thereof
CN113564489B (en) * 2021-07-08 2022-07-15 首钢智新迁安电磁材料有限公司 Low-grade non-oriented electrical steel and manufacturing method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279960A (en) * 1962-12-31 1966-10-18 Kobe Steel Ltd Method for making bidirectional iron aluminium alloy magnetic sheet
DE1966686A1 (en) * 1969-05-08 1973-08-30 Creusot Loire Electrical steel sheet with cubic texture - produced from desulphurised steel
US3761253A (en) * 1969-12-05 1973-09-25 Steel Corp Steel for electrical applications and novel article
FR2236009A1 (en) * 1973-06-18 1975-01-31 Nippon Steel Corp
FR2408657A1 (en) * 1977-11-11 1979-06-08 Kawasaki Steel Co PROCESS FOR MANUFACTURING NON-ORIENTED SHEETS OF SILICON STEEL
FR2462479A1 (en) * 1979-07-27 1981-02-13 Allegheny Ludlum Steel PROCESS FOR PRODUCING MAGNETIC SHEETS BY ROLLING
US4421574A (en) * 1981-09-08 1983-12-20 Inland Steel Company Method for suppressing internal oxidation in steel with antimony addition

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034935A (en) * 1958-12-01 1962-05-15 Gen Electric Alloy bodies having improved magnetic properties and process for producing same
US3971678A (en) * 1972-05-31 1976-07-27 Stahlwerke Peine-Salzgitter Aktiengesellschaft Method of making cold-rolled sheet for electrical purposes
US3960616A (en) * 1975-06-19 1976-06-01 Armco Steel Corporation Rare earth metal treated cold rolled, non-oriented silicon steel and method of making it
JPS583027B2 (en) * 1979-05-30 1983-01-19 川崎製鉄株式会社 Cold rolled non-oriented electrical steel sheet with low iron loss
JPS63317627A (en) * 1987-06-18 1988-12-26 Kawasaki Steel Corp Semiprocessing non-oriented silicon steel sheet combining low iron loss with high magnetic permeability and its production

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279960A (en) * 1962-12-31 1966-10-18 Kobe Steel Ltd Method for making bidirectional iron aluminium alloy magnetic sheet
DE1966686A1 (en) * 1969-05-08 1973-08-30 Creusot Loire Electrical steel sheet with cubic texture - produced from desulphurised steel
US3761253A (en) * 1969-12-05 1973-09-25 Steel Corp Steel for electrical applications and novel article
FR2236009A1 (en) * 1973-06-18 1975-01-31 Nippon Steel Corp
FR2408657A1 (en) * 1977-11-11 1979-06-08 Kawasaki Steel Co PROCESS FOR MANUFACTURING NON-ORIENTED SHEETS OF SILICON STEEL
FR2462479A1 (en) * 1979-07-27 1981-02-13 Allegheny Ludlum Steel PROCESS FOR PRODUCING MAGNETIC SHEETS BY ROLLING
US4421574A (en) * 1981-09-08 1983-12-20 Inland Steel Company Method for suppressing internal oxidation in steel with antimony addition
US4421574C1 (en) * 1981-09-08 2002-06-18 Inland Steel Co Method for suppressing internal oxidation in steel with antimony addition

Also Published As

Publication number Publication date
KR0177801B1 (en) 1999-02-18
DE4038373A1 (en) 1991-06-27
AU632876B2 (en) 1993-01-14
AU6784190A (en) 1991-06-13
EP0431502A2 (en) 1991-06-12
ZA909748B (en) 1991-10-30
DD299102A7 (en) 1992-04-02
KR910012318A (en) 1991-08-07
US5258080A (en) 1993-11-02
CA2031579C (en) 2001-02-20
EP0431502B1 (en) 1994-09-28
CA2031579A1 (en) 1991-06-07
BR9006197A (en) 1991-09-24
ATE112326T1 (en) 1994-10-15
JPH04218647A (en) 1992-08-10
DE59007334D1 (en) 1994-11-03

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