JPS55128543A - Insulating layer formation on directional silicon steel plate - Google Patents

Insulating layer formation on directional silicon steel plate

Info

Publication number
JPS55128543A
JPS55128543A JP3534179A JP3534179A JPS55128543A JP S55128543 A JPS55128543 A JP S55128543A JP 3534179 A JP3534179 A JP 3534179A JP 3534179 A JP3534179 A JP 3534179A JP S55128543 A JPS55128543 A JP S55128543A
Authority
JP
Japan
Prior art keywords
annealing
insulating layer
silicon steel
sio2
decarbonizing
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
JP3534179A
Other languages
Japanese (ja)
Other versions
JPS5846547B2 (en
Inventor
Yasuo Yokoyama
Hirotake Ishitobi
Hiroshi Nemoto
Shigeru Yoshida
Nobuyuki Morito
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 JP54035341A priority Critical patent/JPS5846547B2/en
Publication of JPS55128543A publication Critical patent/JPS55128543A/en
Publication of JPS5846547B2 publication Critical patent/JPS5846547B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
    • C23C8/18—Oxidising of ferrous surfaces
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

PURPOSE:To stably form a uniform, highly adhesive insulating layer without pro- ducing excessive FeO in high temperature finish annealing by depositing a specified amount of Si cpd. on silicon steel strip before decarbonizing annealing. CONSTITUTION:On the surface of cold rolled directional silicon steel strip, Si cpd. such as silicic acid (SiO2.xH2O) is deposited in amount of 0.5-7.0mg/m<2> based on Si weight. This is then subject to decarbonizing annealing under atmosphere contg. H2-H2O so as to form oxide layer contg. SiO2. This is coated with material essential consisting of MgO as annealing separator, is wound in coil shape, undergoes high temperature finish annealing under H2 atmosphere, so that SiO2-MgO based glass layer is formed. The method expands selecting range of decarbonizing annealing and provides a uniform, good property insulating layer.
JP54035341A 1979-03-26 1979-03-26 Method for forming insulation coating on grain-oriented silicon steel sheet Expired JPS5846547B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54035341A JPS5846547B2 (en) 1979-03-26 1979-03-26 Method for forming insulation coating on grain-oriented silicon steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54035341A JPS5846547B2 (en) 1979-03-26 1979-03-26 Method for forming insulation coating on grain-oriented silicon steel sheet

Publications (2)

Publication Number Publication Date
JPS55128543A true JPS55128543A (en) 1980-10-04
JPS5846547B2 JPS5846547B2 (en) 1983-10-17

Family

ID=12439145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54035341A Expired JPS5846547B2 (en) 1979-03-26 1979-03-26 Method for forming insulation coating on grain-oriented silicon steel sheet

Country Status (1)

Country Link
JP (1) JPS5846547B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761827A2 (en) * 1995-09-07 1997-03-12 Kawasaki Steel Corporation Process for producing grain oriented silicon steel sheet, and decarburized sheet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086418A (en) * 1973-12-07 1975-07-11
JPS5432124A (en) * 1977-08-15 1979-03-09 Nippon Steel Corp Applying method for strain relief annealing seizureproof films on electro- magnetic steel sheet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086418A (en) * 1973-12-07 1975-07-11
JPS5432124A (en) * 1977-08-15 1979-03-09 Nippon Steel Corp Applying method for strain relief annealing seizureproof films on electro- magnetic steel sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761827A2 (en) * 1995-09-07 1997-03-12 Kawasaki Steel Corporation Process for producing grain oriented silicon steel sheet, and decarburized sheet
EP0761827A3 (en) * 1995-09-07 1998-05-27 Kawasaki Steel Corporation Process for producing grain oriented silicon steel sheet, and decarburized sheet
KR100300209B1 (en) * 1995-09-07 2001-11-22 에모또 간지 Method for producing oriented silicon steel sheet and oriented silicon steel decarburization annealing plate

Also Published As

Publication number Publication date
JPS5846547B2 (en) 1983-10-17

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