FR2757541B1 - MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS - Google Patents

MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS

Info

Publication number
FR2757541B1
FR2757541B1 FR9615593A FR9615593A FR2757541B1 FR 2757541 B1 FR2757541 B1 FR 2757541B1 FR 9615593 A FR9615593 A FR 9615593A FR 9615593 A FR9615593 A FR 9615593A FR 2757541 B1 FR2757541 B1 FR 2757541B1
Authority
FR
France
Prior art keywords
oriented grains
steel sheet
magnetic steel
sheet
less
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 - Fee Related
Application number
FR9615593A
Other languages
French (fr)
Other versions
FR2757541A1 (en
Inventor
Stephanie Eple
Christophe Degand
Jean Louis Hochard
Hoecke Georges Van
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Priority to FR9615593A priority Critical patent/FR2757541B1/en
Priority to EP97402786A priority patent/EP0849371B1/en
Priority to AT97402786T priority patent/ATE234943T1/en
Priority to DE69719933T priority patent/DE69719933T2/en
Publication of FR2757541A1 publication Critical patent/FR2757541A1/en
Application granted granted Critical
Publication of FR2757541B1 publication Critical patent/FR2757541B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

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

Abstract

A sheet steel contains less than 0.005 wt.% carbon, less than 0.1 wt.% phosphorous, 0.2 wt.% silicon, 0.1 wt.% manganese and additional quantities of Si, Mn and aluminium defined by equations 80Mn+90Si ≥ 85 (I) and 5.38 ≤ 6Mn+13Al+12Si ≤ 16 (II). Maximum levels of Si and Mn are 0.6 wt.% and 1.3 wt.% respectively. The steel is formed into a sheet, e.g. by cold-rolling, then annealed at 800-900 degrees C, remaining below the ferrite-austenite transformation temperature to produce a structure with non-oriented grains.
FR9615593A 1996-12-19 1996-12-19 MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS Expired - Fee Related FR2757541B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9615593A FR2757541B1 (en) 1996-12-19 1996-12-19 MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS
EP97402786A EP0849371B1 (en) 1996-12-19 1997-11-20 Non-oriented magnetical steel sheet
AT97402786T ATE234943T1 (en) 1996-12-19 1997-11-20 NON-CORNORIENTED MAGNETIC STEEL SHEET
DE69719933T DE69719933T2 (en) 1996-12-19 1997-11-20 Magnetic steel sheet with unpainted grains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9615593A FR2757541B1 (en) 1996-12-19 1996-12-19 MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS

Publications (2)

Publication Number Publication Date
FR2757541A1 FR2757541A1 (en) 1998-06-26
FR2757541B1 true FR2757541B1 (en) 1999-01-22

Family

ID=9498821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9615593A Expired - Fee Related FR2757541B1 (en) 1996-12-19 1996-12-19 MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS

Country Status (4)

Country Link
EP (1) EP0849371B1 (en)
AT (1) ATE234943T1 (en)
DE (1) DE69719933T2 (en)
FR (1) FR2757541B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867211A (en) * 1973-08-16 1975-02-18 Armco Steel Corp Low-oxygen, silicon-bearing lamination steel
JPS58117828A (en) * 1981-12-28 1983-07-13 Nippon Steel Corp Production of semi-process nondirectional electrical sheet having low iron loss and high magnetic flux density
JPH0819467B2 (en) * 1990-02-28 1996-02-28 日本鋼管株式会社 Non-oriented electrical steel sheet manufacturing method
FR2669349B1 (en) * 1990-11-19 1993-12-31 Sollac METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS.
JPH07207343A (en) * 1994-01-18 1995-08-08 Nippon Steel Corp Production of semiprocessed grain nonoriented silicon steel sheet
JPH08157966A (en) * 1994-11-30 1996-06-18 Nkk Corp Production of fullprocessed nonoriented silicon steel sheet

Also Published As

Publication number Publication date
ATE234943T1 (en) 2003-04-15
EP0849371A1 (en) 1998-06-24
EP0849371B1 (en) 2003-03-19
DE69719933T2 (en) 2003-12-04
FR2757541A1 (en) 1998-06-26
DE69719933D1 (en) 2003-04-24

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Legal Events

Date Code Title Description
ST Notification of lapse