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GB1411094A - Method for forming an insulating film on a grain oriented silicon steel sheet - Google Patents

Method for forming an insulating film on a grain oriented silicon steel sheet

Info

Publication number
GB1411094A
GB1411094A GB4420872A GB4420872A GB1411094A GB 1411094 A GB1411094 A GB 1411094A GB 4420872 A GB4420872 A GB 4420872A GB 4420872 A GB4420872 A GB 4420872A GB 1411094 A GB1411094 A GB 1411094A
Authority
GB
United Kingdom
Prior art keywords
steel sheet
oriented silicon
grain oriented
silicon steel
forming
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.)
Expired
Application number
GB4420872A
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
Publication of GB1411094A publication Critical patent/GB1411094A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C21D8/1288—Application of a tension-inducing coating
    • 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • C23C22/33—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
    • 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings

Landscapes

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

Abstract

1411094 Coated steel NIPPON STEEL CORP 25 Sept 1972 [27 Sept 1971] 44208/72 Heading B2E [Also in Division C7] A grain oriented silicon steel sheet is provided with a surface film to improve iron loss and magnetostriction characteristics by application of a solution composed of 4-16% colloidal silica, 3-24% aluminium phosphate and 0.2- 4.5% of at least one compound selected from chromic anhydride and a chromate and baking the resulting coating at above 350‹C. The solution may be applied by dipping or spraying to the surface of the steel sheet which may be covered with a glossy film formed during the high temperature finishing annealing of the sheet or with a phosphate film. Boric acid may be added to the coating solution in amount 0.18 to 3.51%, and non-colloidal silica powder may be added in amount 0.045 to 1.43%.
GB4420872A 1971-09-27 1972-09-25 Method for forming an insulating film on a grain oriented silicon steel sheet Expired GB1411094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7523371A JPS5328375B2 (en) 1971-09-27 1971-09-27

Publications (1)

Publication Number Publication Date
GB1411094A true GB1411094A (en) 1975-10-22

Family

ID=13570281

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4420872A Expired GB1411094A (en) 1971-09-27 1972-09-25 Method for forming an insulating film on a grain oriented silicon steel sheet

Country Status (10)

Country Link
US (1) US3856568A (en)
JP (1) JPS5328375B2 (en)
BE (1) BE789262A (en)
BR (1) BR7206706D0 (en)
CA (1) CA986793A (en)
DE (1) DE2247269C3 (en)
FR (1) FR2154625B1 (en)
GB (1) GB1411094A (en)
IT (1) IT965500B (en)
SE (1) SE379799B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881975A (en) * 1986-12-23 1989-11-21 Albright & Wilson Limited Products for treating surfaces
RU2455390C2 (en) * 2010-10-05 2012-07-10 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Ingredients to produce corrosion-resistant and heat-resistant coatings on parts of structural steels and heat-resistant alloys based on nickel
RU2480534C1 (en) * 2012-01-27 2013-04-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Composition for obtaining protective coating on steel parts
RU2510716C2 (en) * 2012-07-25 2014-04-10 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Method of applying protective coating on steel components
CN112239863A (en) * 2020-09-11 2021-01-19 武汉圆融科技有限责任公司 An insulating coating solution for improving cracks in surface coating of grain-oriented silicon steel and preparation method thereof, and grain-oriented silicon steel sheet

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* Cited by examiner, † Cited by third party
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JPS5652117B2 (en) * 1973-11-17 1981-12-10
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JPS51105771A (en) * 1975-03-14 1976-09-18 Nippon Telegraph & Telephone FUOTOETSU CHINGUHOHO
US4032366A (en) * 1975-05-23 1977-06-28 Allegheny Ludlum Industries, Inc. Grain-oriented silicon steel and processing therefor
JPS5917521B2 (en) * 1975-08-22 1984-04-21 川崎製鉄株式会社 Method for forming a heat-resistant top insulating film on grain-oriented silicon steel sheets
IT1115840B (en) * 1977-03-09 1986-02-10 Centro Speriment Metallurg SOLUTION OF COATINGS FOR STEELS FOR MAGNETIC USE
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DE2247269A1 (en) 1973-04-05
SE379799B (en) 1975-10-20
FR2154625B1 (en) 1975-01-03
BR7206706D0 (en) 1973-08-21
JPS5328375B2 (en) 1978-08-14
US3856568A (en) 1974-12-24
CA986793A (en) 1976-04-06
DE2247269C3 (en) 1981-05-14
IT965500B (en) 1974-01-31
FR2154625A1 (en) 1973-05-11
DE2247269B2 (en) 1977-09-29
JPS4839338A (en) 1973-06-09
BE789262A (en) 1973-01-15

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