FR2669349B1 - METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS. - Google Patents

METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS.

Info

Publication number
FR2669349B1
FR2669349B1 FR9014699A FR9014699A FR2669349B1 FR 2669349 B1 FR2669349 B1 FR 2669349B1 FR 9014699 A FR9014699 A FR 9014699A FR 9014699 A FR9014699 A FR 9014699A FR 2669349 B1 FR2669349 B1 FR 2669349B1
Authority
FR
France
Prior art keywords
weight
sheets
steel sheets
sheet obtained
silicon
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
FR9014699A
Other languages
French (fr)
Other versions
FR2669349A1 (en
Inventor
Hoecke Georges Van
Christian Zozol
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
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 filed Critical Sollac SA
Priority to FR9014699A priority Critical patent/FR2669349B1/en
Priority to EP91470036A priority patent/EP0487443B1/en
Priority to AT91470036T priority patent/ATE120242T1/en
Priority to DE69108359T priority patent/DE69108359D1/en
Publication of FR2669349A1 publication Critical patent/FR2669349A1/en
Application granted granted Critical
Publication of FR2669349B1 publication Critical patent/FR2669349B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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

Landscapes

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

Abstract

Steel sheet for electrical application, of the type containing less than 0.005 % by weight of carbon, 0.1 to 0.7 % by weight of manganese and at least 0.2 % by weight of silicon, characterised in that it is manufactured as follows: - a steel whose carbon content is already lower than 0.005 % by weight and in which the sum of the contents of phosphorus and silicon is between 0.420 and 0.570 % by weight is produced, cast and rolled when hot and then when cold into the form of sheets; - the said sheets are then subjected to a continuous tempering treatment under neutral atmosphere at a temperature taken from the range approximately from 800 to 900 DEG C, and so as to remain below the alpha -> gamma transformation point of the steel type treated.
FR9014699A 1990-11-19 1990-11-19 METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS. Expired - Fee Related FR2669349B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9014699A FR2669349B1 (en) 1990-11-19 1990-11-19 METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS.
EP91470036A EP0487443B1 (en) 1990-11-19 1991-11-18 Steel sheet for electrical applications
AT91470036T ATE120242T1 (en) 1990-11-19 1991-11-18 STEEL SHEET FOR ELECTRICAL USES.
DE69108359T DE69108359D1 (en) 1990-11-19 1991-11-18 Sheet steel for electrical purposes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9014699A FR2669349B1 (en) 1990-11-19 1990-11-19 METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS.

Publications (2)

Publication Number Publication Date
FR2669349A1 FR2669349A1 (en) 1992-05-22
FR2669349B1 true FR2669349B1 (en) 1993-12-31

Family

ID=9402561

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9014699A Expired - Fee Related FR2669349B1 (en) 1990-11-19 1990-11-19 METHOD FOR MANUFACTURING STEEL SHEETS FOR ELECTRIC USE, AND SHEET OBTAINED BY THIS PROCESS.

Country Status (4)

Country Link
EP (1) EP0487443B1 (en)
AT (1) ATE120242T1 (en)
DE (1) DE69108359D1 (en)
FR (1) FR2669349B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757541B1 (en) * 1996-12-19 1999-01-22 Lorraine Laminage MAGNETIC STEEL SHEET WITH NON-ORIENTED GRAINS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382885A (en) * 1963-02-26 1964-12-18 United States Steel Corp Production process of a steel sheet for electrical construction
FR1437673A (en) * 1965-03-26 1966-05-06 Loire Atel Forges Method of manufacturing steel products for magnetic uses without preferential crystalline orientation
DE1931420B1 (en) * 1969-06-20 1971-04-22 Hoesch Ag Use of a steel that has been vacuum-treated in the liquid state as a dynamo tape
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
JPS6383226A (en) * 1986-09-29 1988-04-13 Nkk Corp Grain oriented electrical steel sheet having extremely uniform sheet thickness accuracy and magnetic characteristic nd its production

Also Published As

Publication number Publication date
ATE120242T1 (en) 1995-04-15
FR2669349A1 (en) 1992-05-22
EP0487443B1 (en) 1995-03-22
EP0487443A1 (en) 1992-05-27
DE69108359D1 (en) 1995-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070731