JPS56105420A - Magnetic steel plate with excellent magnetic characteristics - Google Patents

Magnetic steel plate with excellent magnetic characteristics

Info

Publication number
JPS56105420A
JPS56105420A JP699880A JP699880A JPS56105420A JP S56105420 A JPS56105420 A JP S56105420A JP 699880 A JP699880 A JP 699880A JP 699880 A JP699880 A JP 699880A JP S56105420 A JPS56105420 A JP S56105420A
Authority
JP
Japan
Prior art keywords
magnetic
steel plate
insulation coating
irradiated
buds
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
JP699880A
Other languages
Japanese (ja)
Other versions
JPS5850297B2 (en
Inventor
Tadashi Ichiyama
Shigehiro Yamaguchi
Toru Inouchi
Motoharu Nakamura
Yozo Suga
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 JP55006998A priority Critical patent/JPS5850297B2/en
Priority to US06/227,379 priority patent/US4363677A/en
Priority to EP83100769A priority patent/EP0087587B1/en
Priority to DE8383100769T priority patent/DE3177027D1/en
Priority to DE8181100512T priority patent/DE3165139D1/en
Priority to EP81100512A priority patent/EP0033878B1/en
Publication of JPS56105420A publication Critical patent/JPS56105420A/en
Publication of JPS5850297B2 publication Critical patent/JPS5850297B2/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

Landscapes

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

Abstract

PURPOSE:To enhance magnetic characteristics, insulation property and space factor of the magnetic steel plate by a method wherein a pulsative laser beam is irradiated onto a surface of the magnetic steel plate and, thereafter, an insulation coating is applied on the surface thereof. CONSTITUTION:The pulse laser is irradiated against the magnetic steel plate 1 at a right angle to a rolling direction F. Thereby, laser irradiated parts 2 are allowed to be arranged at a right angle to the rolling direction F and small protrusion groups 5 are generated to both sides of the irradiated parts 2. Because said small protrusions are buds of magnetic domain and, when said steel plate 1 is magnetized, a magnetic domain 3 is finely divided by magnetic sections 4 extended from said buds, iron loss is reduced. Subsequently, in providing the insulation coating on the surface of the steel plate, it is not necessary to attain to enhance magnetic characteristics by utilizing tension effect of said insulation coating. Therefore, because a thickness of the insulation coating can be made thin, the enhancement of space factor can be attained.
JP55006998A 1980-01-25 1980-01-25 Electrical steel sheet with excellent magnetic properties Expired JPS5850297B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP55006998A JPS5850297B2 (en) 1980-01-25 1980-01-25 Electrical steel sheet with excellent magnetic properties
US06/227,379 US4363677A (en) 1980-01-25 1981-01-22 Method for treating an electromagnetic steel sheet and an electromagnetic steel sheet having marks of laser-beam irradiation on its surface
EP83100769A EP0087587B1 (en) 1980-01-25 1981-01-23 An electromagnetic steel sheet treated by laser-beam irradiation
DE8383100769T DE3177027D1 (en) 1980-01-25 1981-01-23 An electromagnetic steel sheet treated by laser-beam irradiation
DE8181100512T DE3165139D1 (en) 1980-01-25 1981-01-23 Method for treating an electromagnetic steel sheet by laser-beam irradiation
EP81100512A EP0033878B1 (en) 1980-01-25 1981-01-23 Method for treating an electromagnetic steel sheet by laser-beam irradiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55006998A JPS5850297B2 (en) 1980-01-25 1980-01-25 Electrical steel sheet with excellent magnetic properties

Publications (2)

Publication Number Publication Date
JPS56105420A true JPS56105420A (en) 1981-08-21
JPS5850297B2 JPS5850297B2 (en) 1983-11-09

Family

ID=11653774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55006998A Expired JPS5850297B2 (en) 1980-01-25 1980-01-25 Electrical steel sheet with excellent magnetic properties

Country Status (1)

Country Link
JP (1) JPS5850297B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151514A (en) * 1985-12-26 1987-07-06 Kawasaki Steel Corp Production of low iron loss grain oriented silicon steel sheet
WO2012017693A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Grain-oriented magnetic steel sheet and process for producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62204099U (en) * 1986-06-18 1987-12-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151514A (en) * 1985-12-26 1987-07-06 Kawasaki Steel Corp Production of low iron loss grain oriented silicon steel sheet
WO2012017693A1 (en) * 2010-08-06 2012-02-09 Ｊｆｅスチール株式会社 Grain-oriented magnetic steel sheet and process for producing same
JP2012036450A (en) * 2010-08-06 2012-02-23 Jfe Steel Corp Grain-oriented magnetic steel sheet and method for producing the same

Also Published As

Publication number Publication date
JPS5850297B2 (en) 1983-11-09

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