JPS5794518A - Annealing method for enlarging aggregate of primarily recrystallized grains which introduces high magnetic flux density and ultra-low iron loss of one directional electromagnetic steel plate - Google Patents

Annealing method for enlarging aggregate of primarily recrystallized grains which introduces high magnetic flux density and ultra-low iron loss of one directional electromagnetic steel plate

Info

Publication number
JPS5794518A
JPS5794518A JP55170205A JP17020580A JPS5794518A JP S5794518 A JPS5794518 A JP S5794518A JP 55170205 A JP55170205 A JP 55170205A JP 17020580 A JP17020580 A JP 17020580A JP S5794518 A JPS5794518 A JP S5794518A
Authority
JP
Japan
Prior art keywords
ultra
magnetic flux
recrystallized grains
flux density
iron loss
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
JP55170205A
Other languages
Japanese (ja)
Other versions
JPS5833299B2 (en
Inventor
Masao Iguchi
Isao Ito
Hiroshi Shimanaka
Chizuko Maeda
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
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP55170205A priority Critical patent/JPS5833299B2/en
Publication of JPS5794518A publication Critical patent/JPS5794518A/en
Publication of JPS5833299B2 publication Critical patent/JPS5833299B2/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

Landscapes

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

Abstract

PURPOSE:To obtain one directional electromagnetic steel plates having a stable high magnetic flux density and an ultra-low iron loss, by combining aggregates of primarily recrystallized grains to secondarily recrystallized unclei by heating silicon bearing steel plates at high temperature in a short time after a decarburizing annealing which also works as a primary recrystallization annealing is performed on silicon bearing steel plates. CONSTITUTION:A hot rolled plate of a silicon bearing steel is cold rolled for more than one time and by the cold rolling the primary recrystallization annealing is performed. The cold rolled plate is then subjected to a decarburizing annealing treatment. In the final stage of the process of after the process is performed, the surface layer of the steel plate is repeatedly heated at high temperature in a short time. In this way, aggregates of primarily recrystallized grains in the surface layer having an orientation of (110)[001]are combined to secondarily recrystallized unclei having the same orientation (100)[001]. In this way aggregates of primarily recrystallized grains are enlarged, and one directional electromagnetic steel plates having a stable high magnetic flux density and an ultra-low iron loss can be manufactured constantly.
JP55170205A 1980-12-04 1980-12-04 Coarsening annealing method for primary recrystallized grain aggregates that achieves both high magnetic flux density and ultra-low iron loss in unidirectional electrical steel sheets Expired JPS5833299B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55170205A JPS5833299B2 (en) 1980-12-04 1980-12-04 Coarsening annealing method for primary recrystallized grain aggregates that achieves both high magnetic flux density and ultra-low iron loss in unidirectional electrical steel sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55170205A JPS5833299B2 (en) 1980-12-04 1980-12-04 Coarsening annealing method for primary recrystallized grain aggregates that achieves both high magnetic flux density and ultra-low iron loss in unidirectional electrical steel sheets

Publications (2)

Publication Number Publication Date
JPS5794518A true JPS5794518A (en) 1982-06-12
JPS5833299B2 JPS5833299B2 (en) 1983-07-19

Family

ID=15900606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55170205A Expired JPS5833299B2 (en) 1980-12-04 1980-12-04 Coarsening annealing method for primary recrystallized grain aggregates that achieves both high magnetic flux density and ultra-low iron loss in unidirectional electrical steel sheets

Country Status (1)

Country Link
JP (1) JPS5833299B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193219A (en) * 1983-04-18 1984-11-01 Kawasaki Steel Corp Continuous annealing treatment equipment of silicon steel plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193219A (en) * 1983-04-18 1984-11-01 Kawasaki Steel Corp Continuous annealing treatment equipment of silicon steel plate

Also Published As

Publication number Publication date
JPS5833299B2 (en) 1983-07-19

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