JPS57192223A - Treatment of electromagnetic steel sheet - Google Patents

Treatment of electromagnetic steel sheet

Info

Publication number
JPS57192223A
JPS57192223A JP7424881A JP7424881A JPS57192223A JP S57192223 A JPS57192223 A JP S57192223A JP 7424881 A JP7424881 A JP 7424881A JP 7424881 A JP7424881 A JP 7424881A JP S57192223 A JPS57192223 A JP S57192223A
Authority
JP
Japan
Prior art keywords
steel sheet
electromagnetic steel
property
laser
film
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
JP7424881A
Other languages
Japanese (ja)
Other versions
JPS5836053B2 (en
Inventor
Motoharu Nakamura
Masaru Iwasaki
Yoshitada Tanaka
Kikuji Hirose
Toru Inouchi
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.)
Nippon Steel Corp
Original Assignee
Nippon 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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP7424881A priority Critical patent/JPS5836053B2/en
Publication of JPS57192223A publication Critical patent/JPS57192223A/en
Publication of JPS5836053B2 publication Critical patent/JPS5836053B2/en
Expired 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
    • C21D8/1294—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

Landscapes

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

Abstract

PURPOSE:To obtin an electromagnetic steel sheet having a magnetic property and an insulating property under a stable condition, while improving an iron loss property, by forming tension films having different thickness on the opposite surfaces of the electromagnetic steel sheet, irradiating laser beams to the surface of the thinner film, and then coating the thinner film with an insulating film at a proper temperature. CONSTITUTION:Tension films having different thickness are formed on the opposite surfaces of an electromagnetic steel sheet in a proper manner. Laser beams are irradiated to the surface of the thinner tension film to form laser- irradiated marks. An insulating film is then applied to the laser-irradiated surface in a temperature range not to eliminate the laser-irradiating effect, e.g. under the condition that the temperature of the sheet is held below 600 deg.C. According to this method, the iron loss property of the electromagnetic steel sheet is remarkably improved without reduction of adhesiveness, space factor ratio resistance and a voltage-withstanding property.
JP7424881A 1981-05-19 1981-05-19 Processing method for electrical steel sheets Expired JPS5836053B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7424881A JPS5836053B2 (en) 1981-05-19 1981-05-19 Processing method for electrical steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7424881A JPS5836053B2 (en) 1981-05-19 1981-05-19 Processing method for electrical steel sheets

Publications (2)

Publication Number Publication Date
JPS57192223A true JPS57192223A (en) 1982-11-26
JPS5836053B2 JPS5836053B2 (en) 1983-08-06

Family

ID=13541663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7424881A Expired JPS5836053B2 (en) 1981-05-19 1981-05-19 Processing method for electrical steel sheets

Country Status (1)

Country Link
JP (1) JPS5836053B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253380A (en) * 1985-05-02 1986-11-11 Nippon Steel Corp Production of low iron loss grain oriented electrical steel sheet
US4655854A (en) * 1983-10-27 1987-04-07 Kawasaki Steel Corporation 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
US5173129A (en) * 1983-10-27 1992-12-22 Kawasaki Steel Corporation 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
JP2009235472A (en) * 2008-03-26 2009-10-15 Jfe Steel Corp Grain-oriented electrical steel sheet and manufacturing method therefor
WO2012017695A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Grain-oriented magnetic steel sheet
WO2012017671A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Directional magnetic steel plate
WO2012172624A1 (en) * 2011-06-13 2012-12-20 新日鐵住金株式会社 Manufacturing method for unidirectional electromagnetic steel sheet
WO2013118512A1 (en) * 2012-02-08 2013-08-15 Ｊｆｅスチール株式会社 Grain-oriented electrical steel plate

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655854A (en) * 1983-10-27 1987-04-07 Kawasaki Steel Corporation 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
US5173129A (en) * 1983-10-27 1992-12-22 Kawasaki Steel Corporation 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
JPS61253380A (en) * 1985-05-02 1986-11-11 Nippon Steel Corp Production of low iron loss grain oriented electrical steel sheet
JP2009235472A (en) * 2008-03-26 2009-10-15 Jfe Steel Corp Grain-oriented electrical steel sheet and manufacturing method therefor
EP2602348A1 (en) * 2010-08-06 2013-06-12 JFE Steel Corporation Grain-oriented magnetic steel sheet
KR101299857B1 (en) * 2010-08-06 2013-08-23 제이에프이 스틸 가부시키가이샤 Grain oriented electrical steel sheet
JP2012052228A (en) * 2010-08-06 2012-03-15 Jfe Steel Corp Directional magnetic steel plate
JP2012052231A (en) * 2010-08-06 2012-03-15 Jfe Steel Corp Grain-oriented electromagnetic steel sheet
EP2602343A4 (en) * 2010-08-06 2017-05-31 JFE Steel Corporation Directional magnetic steel plate
CN103069038A (en) * 2010-08-06 2013-04-24 杰富意钢铁株式会社 Grain oriented electrical steel sheet
WO2012017695A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Grain-oriented magnetic steel sheet
EP2602348A4 (en) * 2010-08-06 2013-06-12 Jfe Steel Corp Grain-oriented magnetic steel sheet
US9240266B2 (en) 2010-08-06 2016-01-19 Jfe Steel Corporation Grain oriented electrical steel sheet
WO2012017671A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Directional magnetic steel plate
WO2012172624A1 (en) * 2011-06-13 2012-12-20 新日鐵住金株式会社 Manufacturing method for unidirectional electromagnetic steel sheet
JP2013159846A (en) * 2012-02-08 2013-08-19 Jfe Steel Corp Grain-oriented magnetic steel sheet
CN104105808A (en) * 2012-02-08 2014-10-15 杰富意钢铁株式会社 Grain-oriented electrical steel plate
WO2013118512A1 (en) * 2012-02-08 2013-08-15 Ｊｆｅスチール株式会社 Grain-oriented electrical steel plate
CN104105808B (en) * 2012-02-08 2017-02-22 杰富意钢铁株式会社 Grain-oriented electrical steel plate
US9761361B2 (en) 2012-02-08 2017-09-12 Jfe Steel Corporation Grain-oriented electrical steel sheet

Also Published As

Publication number Publication date
JPS5836053B2 (en) 1983-08-06

Similar Documents

Publication Publication Date Title
AU536864B2 (en) Cladding process
JPS57192223A (en) Treatment of electromagnetic steel sheet
ATE138109T1 (en) METHOD FOR REDUCING IRON LOSSES IN ELECTRICAL SHEET BY CREATING HEAT RESISTANT, REFINED AREA STRUCTURES
JPS57192222A (en) Treatment of electromagnetic steel sheet
JPS56105421A (en) Magnetic steel plate with excellent iron loss characteristic and preparation thereof
JPS5665662A (en) Processing method of coated surface of steel plate having organic surface coating
ES8303556A1 (en) A method of providing an anti-stick coating on non-oriented, semi-processed electrical steels to be subjected to a quality anneal.
JPS56105420A (en) Magnetic steel plate with excellent magnetic characteristics
JPS5683012A (en) Improving method for iron loss of transformer core
JPS5429848A (en) Surface treating method for zinc plated steel material
JPS5397941A (en) Surface treating method for high temperature corrosion resistance and ion plating diffusion treatment furnace
JPS57198217A (en) Magnetic characteristic improvidng method of directional electrical sheet
JPS56131088A (en) Steel plate for tain-free steel welded can and welded can
ATE3488T1 (en) METHOD OF INCREASING THE ELECTRICAL PERFORMANCE OF HEATING ELEMENTS CONSISTING OF METAL-COVERED TEXTILE SHEET STRUCTURES BY SUBSEQUENT SURFACE TREATMENT.
JPS56121257A (en) Manufacture of cathode-ray tube
JPS55164080A (en) Chromate treatment for galvanized steel plate subjected to alloying treatment
JPS55138096A (en) Surface treated steel plate, for resistance welding having layer containing ni
JPS57101685A (en) Treatment of manganese plated steel plate
JPS5597421A (en) Preparation of colored iron plate with excellent roll moldability
JPS5613130A (en) Resin coating method on cut surface of resin-coated steel plate
JPS56159820A (en) Magnetic head for video tape recorder
JPS55134673A (en) Surface treatment
JPS5265533A (en) Method for keeping galvanized sheet iron from white rust
JPS5727030A (en) Formation of resist pattern
JPS5637630A (en) Formation of thin film