JPS64230A - Continuous treatment equipment for decreasing iron loss of grain oriented silicon steel sheet - Google Patents

Continuous treatment equipment for decreasing iron loss of grain oriented silicon steel sheet

Info

Publication number
JPS64230A
JPS64230A JP30596587A JP30596587A JPS64230A JP S64230 A JPS64230 A JP S64230A JP 30596587 A JP30596587 A JP 30596587A JP 30596587 A JP30596587 A JP 30596587A JP S64230 A JPS64230 A JP S64230A
Authority
JP
Japan
Prior art keywords
steel sheet
silicon steel
vessel
grain oriented
preevacuation
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.)
Pending
Application number
JP30596587A
Other languages
Japanese (ja)
Other versions
JPH01230A (en
Inventor
Masao Iguchi
Isao 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
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of JPS64230A publication Critical patent/JPS64230A/en
Publication of JPH01230A publication Critical patent/JPH01230A/en
Pending 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1294—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localised treatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating

Landscapes

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

Abstract

PURPOSE:To effectively and finely segment magnetic domains and to improve the iron loss characteristic of a grain oriented silicon steel sheet by subjecting the surface of the silicon steel sheet continuously to a local heat treatment under vacuum. CONSTITUTION:The grain oriented silicon steel sheet S which is coiled after the final cold rolling and annealing is un-coiled from an un-coiler 1 and is coiled by a coiler 5 after the sheet is passed through a preevacuation vessel array 3, a high vacuum treatment vessel 2, and a preevacuation vessel array 4. Both the preevacuation vessel arrays 3, 4 consist of preevacuation vessels 3a-3e and 4e-4a in which the vacuums successively higher toward the high vacuum treatment vessel 2 are attained. The grain oriented silicon steel sheet S is irradiated with the beam 11, etc., of 0.01-1.0mm beam diameter generated by a heat treatment device 10 such as electron beam projection device, laser projection device or plasma flame radiating device in the direction across the rolling direction of the steel sheet S in the vessel 2, by which the steel sheet S is heat-treated. The fine segmentation of the magnetic domains of the silicon steel sheet S and eventually the decrease of the iron loss are effectively executed.
JP62-305965A 1987-02-10 1987-12-04 Continuous treatment equipment to reduce iron loss for unidirectional silicon steel sheets Pending JPH01230A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-27386 1987-02-10
JP2738687 1987-02-10

Publications (2)

Publication Number Publication Date
JPS64230A true JPS64230A (en) 1989-01-05
JPH01230A JPH01230A (en) 1989-01-05

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212177A (en) * 1989-02-13 1990-08-23 Nec Corp Serial printer
WO2014073599A1 (en) * 2012-11-08 2014-05-15 新日鐵住金株式会社 Laser processing device and laser radiation method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212177A (en) * 1989-02-13 1990-08-23 Nec Corp Serial printer
WO2014073599A1 (en) * 2012-11-08 2014-05-15 新日鐵住金株式会社 Laser processing device and laser radiation method
KR20150065860A (en) * 2012-11-08 2015-06-15 신닛테츠스미킨 카부시키카이샤 Laser processing device and laser radiation method
JPWO2014073599A1 (en) * 2012-11-08 2016-09-08 新日鐵住金株式会社 Laser processing apparatus and laser irradiation method
US9607744B2 (en) 2012-11-08 2017-03-28 Nippon Steel & Sumitomo Metal Corporation Laser processing apparatus and laser irradiation method

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