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
EP0431502B1 (en
EP0431502A2 (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)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Metal Rolling (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Heat Treatment Of Sheet Steel (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) DE4038373A1 (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
US6248185B1 (en) 1997-08-15 2001-06-19 Kawasaki Steel Corporation Electromagnetic steel sheet having excellent magnetic properties and production method thereof
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
DD299102A7 (en) 1992-04-02
CA2031579A1 (en) 1991-06-07
EP0431502B1 (en) 1994-09-28
EP0431502A2 (en) 1991-06-12
DE59007334D1 (en) 1994-11-03
AU6784190A (en) 1991-06-13
ATE112326T1 (en) 1994-10-15
AU632876B2 (en) 1993-01-14
CA2031579C (en) 2001-02-20
ZA909748B (en) 1991-10-30
US5258080A (en) 1993-11-02
DE4038373A1 (en) 1991-06-27
KR910012318A (en) 1991-08-07
BR9006197A (en) 1991-09-24
KR0177801B1 (en) 1999-02-18
JPH04218647A (en) 1992-08-10

Similar Documents

Publication Publication Date Title
EP0431502A3 (en) Non-oriented electrical strip and method of manufacturing
DE59406591D1 (en) Process for the production of grain-oriented electrical sheets with improved magnetic reversal losses
EP0400549A3 (en) Process for producing grainoriented electrical steel sheet having superior magnetic and surface film characteristics
JPS55158252A (en) Cold rolled nonoriented electrical steel sheet of low iron loss
EP0263413A3 (en) Non-oriented electrical steel sheets and producing non-oriented steel sheets
EP0326912A3 (en) Process for production of grain oriented electrical steel sheet having high flux density
TW400390B (en) Soft cold-rolled steel sheet and method for making the same
EP0390142A3 (en) Process for producing grain-oriented electrical steel sheet having high magnetic flux density
TW340875B (en) Process for producing a steel sheet of strip for making a can
GB2114034B (en) Process and pickling line for production of metal strip from hot-rolled strip, more particularly wide hot-rolled strip
JPS5747830A (en) Production of unidirectional electrical steel plate of superior watt loss
EP0484960A3 (en) Cold-rolled steel strip having excellent combined press formability and method of producing same
DE3473679D1 (en) Grain-oriented silicon steel sheet having a low iron loss free from deterioration due to stress-relief annealing and a method of producing the same
EP0659889A3 (en) Method of manufacturing cold-rolled can steel sheet having less planar anisotropy and good workability.
DE3361738D1 (en) Non-oriented electrical steel sheet having a low watt loss and a high magnetic flux density and a process for producing the same
JPS5723025A (en) Manufacture of hot-rolled high tensile steel plate having excellent local ductility
EP0486703A4 (en) Process for producing nondirectional electrical steel sheet excellent in magnetic properties after stress relieving annealing
JPS56136956A (en) Cold rolled steel plate having superior bendability due to continuous annealing
MX9800951A (en) Raw material for magnetic shield, production method thereof, and color television receiver.
JPS569355A (en) Continuous cast slab for general purpose cold rolled thin steel plate
EP0452122A3 (en) Method of producing grain oriented silicon steel sheets having less iron loss
JPS57192225A (en) Production of drawable cold-rolled steel sheet having baking-hardenability
JPS52145321A (en) High tensile cold rolled steel sheet superior in surface properties
Lex Magnetic Steels With the Lowest Specific Total Losses
Yamada et al. Cold-Rolled Steel Strip Having Excellent Combined Press Formability and Method of Producing Same

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930716

17Q First examination report despatched

Effective date: 19940104

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940928

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940928

Ref country code: GB

Effective date: 19940928

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940928

Ref country code: DK

Effective date: 19940928

Ref country code: BE

Effective date: 19940928

REF Corresponds to:

Ref document number: 112326

Country of ref document: AT

Date of ref document: 19941015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59007334

Country of ref document: DE

Date of ref document: 19941103

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19941231

Ref country code: LI

Effective date: 19941231

Ref country code: CH

Effective date: 19941231

EAL Se: european patent in force in sweden

Ref document number: 90123040.9

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940928

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: D3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031229

Year of fee payment: 14

Ref country code: AT

Payment date: 20031229

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20031230

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040224

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050701

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051201