EP0266422A4 - Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties. - Google Patents

Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties.

Info

Publication number
EP0266422A4
EP0266422A4 EP19860902022 EP86902022A EP0266422A4 EP 0266422 A4 EP0266422 A4 EP 0266422A4 EP 19860902022 EP19860902022 EP 19860902022 EP 86902022 A EP86902022 A EP 86902022A EP 0266422 A4 EP0266422 A4 EP 0266422A4
Authority
EP
European Patent Office
Prior art keywords
thin
steel plate
silicon steel
surface properties
excellent surface
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
EP19860902022
Other languages
German (de)
French (fr)
Other versions
EP0266422B2 (en
EP0266422B1 (en
EP0266422A1 (en
Inventor
Yukio Kawasaki St Corp Inokuti
Yoh Kawasaki St Corp Techn Ito
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13874402&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0266422(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP0266422A1 publication Critical patent/EP0266422A1/en
Publication of EP0266422A4 publication Critical patent/EP0266422A4/en
Application granted granted Critical
Publication of EP0266422B1 publication Critical patent/EP0266422B1/en
Publication of EP0266422B2 publication Critical patent/EP0266422B2/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
    • 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
    • C21D8/1294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localized treatment
    • 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
    • C21D8/1216—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
    • C21D8/1227—Warm 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)
  • 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)
EP86902022A 1986-03-25 1986-03-25 Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties Expired - Lifetime EP0266422B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1986/000138 WO1987005945A1 (en) 1986-03-25 1986-03-25 Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties

Publications (4)

Publication Number Publication Date
EP0266422A1 EP0266422A1 (en) 1988-05-11
EP0266422A4 true EP0266422A4 (en) 1988-11-02
EP0266422B1 EP0266422B1 (en) 1990-11-28
EP0266422B2 EP0266422B2 (en) 1996-06-26

Family

ID=13874402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902022A Expired - Lifetime EP0266422B2 (en) 1986-03-25 1986-03-25 Process for producing low core loss, thin, unidirectional silicon steel plate having excellent surface properties

Country Status (3)

Country Link
EP (1) EP0266422B2 (en)
DE (1) DE3675945D1 (en)
WO (1) WO1987005945A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0784615B2 (en) * 1990-07-27 1995-09-13 川崎製鉄株式会社 Method for producing grain-oriented silicon steel sheet with excellent magnetic flux density
DE19628137C1 (en) * 1996-07-12 1997-04-10 Thyssen Stahl Ag Grain-oriented electrical steel sheet prodn.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1266957A (en) * 1968-04-27 1972-03-15
FR2268868A1 (en) * 1974-04-25 1975-11-21 Nippon Steel Corp
FR2472614A1 (en) * 1979-12-28 1981-07-03 Kawasaki Steel Co Grain oriented silicon electrical steel sheet - contg. molybdenum and antimony to provide very high magnetic induction and very low iron loss
EP0108575A2 (en) * 1982-11-08 1984-05-16 Armco Advanced Materials Corporation Local annealing treatment for cube-on-edge grain oriented silicon steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59173218A (en) * 1983-03-24 1984-10-01 Kawasaki Steel Corp Manufacture of single-oriented silicon steel sheet having high magnetic flux density and low iron loss
JPS59126722A (en) * 1983-01-11 1984-07-21 Nippon Steel Corp Manufacture of grain oriented electrical steel sheet with small iron loss and high magnetic flux density
JPS6151803A (en) * 1984-08-21 1986-03-14 Kawasaki Steel Corp Unidirectional si steel of low iron loss
JP2684302B2 (en) * 1992-10-21 1997-12-03 株式会社ニューギン Pachinko machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1266957A (en) * 1968-04-27 1972-03-15
FR2268868A1 (en) * 1974-04-25 1975-11-21 Nippon Steel Corp
FR2472614A1 (en) * 1979-12-28 1981-07-03 Kawasaki Steel Co Grain oriented silicon electrical steel sheet - contg. molybdenum and antimony to provide very high magnetic induction and very low iron loss
EP0108575A2 (en) * 1982-11-08 1984-05-16 Armco Advanced Materials Corporation Local annealing treatment for cube-on-edge grain oriented silicon steel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 213 (E-422)[2269], 25th July 1986; & JP-A-61 51 803 (KAWASAKI STEEL CORP.) 14-03-1986 *
See also references of WO8705945A1 *

Also Published As

Publication number Publication date
EP0266422B2 (en) 1996-06-26
EP0266422B1 (en) 1990-11-28
WO1987005945A1 (en) 1987-10-08
EP0266422A1 (en) 1988-05-11
DE3675945D1 (en) 1991-01-10

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