GB1183092A - Method of Forming Electric Insulating Films on Al-Containing Silicon Steel Sheet and Surface-Coated Al-Containing Silicon Steel Sheet - Google Patents

Method of Forming Electric Insulating Films on Al-Containing Silicon Steel Sheet and Surface-Coated Al-Containing Silicon Steel Sheet

Info

Publication number
GB1183092A
GB1183092A GB01813/67A GB1181367A GB1183092A GB 1183092 A GB1183092 A GB 1183092A GB 01813/67 A GB01813/67 A GB 01813/67A GB 1181367 A GB1181367 A GB 1181367A GB 1183092 A GB1183092 A GB 1183092A
Authority
GB
United Kingdom
Prior art keywords
steel sheet
compound
containing silicon
silicon steel
solution
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
GB01813/67A
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.)
Yawata Iron and Steel Co Ltd
Original Assignee
Yawata Iron and Steel Co Ltd
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 Yawata Iron and Steel Co Ltd filed Critical Yawata Iron and Steel Co Ltd
Publication of GB1183092A publication Critical patent/GB1183092A/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
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • 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
    • C21D8/1283—Application of a separating or insulating coating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C23C24/00—Coating starting from inorganic powder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1,183,092. Coated steel sheet. YAWATA IRON & STEEL CO. Ltd. 14 March, 1967 [18 March, 1966], No. 11813/67. Heading B2K. [Also in Division C7] In a process for annealing an aluminium containing silicon steel sheet (e.g, containing 0.01-0.09% soluble Al) the annealing separator comprises a coating of a Mg compound and one or more compounds of Mn, Cu, Cr or Zn which has been applied as a solution or suspension thereof. During the annealing in a high temperature reducing atmosphere, the above compounds and Al 2 O 3 in the surface of the steel sheet form a glassy electrically insulating film. The ratio of Mg compound to other compound (calculated as the monoxide) is preferably 98:2 to 20:80. The coating may be applied by roller, spraying or dipping of a mixed solution of the required compounds or the Mn compound may be applied as a first layer and the Mg as a second layer. Alternatively one of the layers in a two layer process may be applied by electrolysis. The coated sheet may be given a further coating by applying, drying and baking a coating using a solution prepared by adding at least one of water glass, MgO, CaO, ZnO and silicic anhydride, to a solution containing H 3 PO 4 5-40 wt. %. Cr<SP>6+</SP> compound 1-10 wt. % #boric acid or a borate #less than 8 wt. % alternatively a solution of 1-6 wt. % zinc dichromate with 1-4% glycerine and 2-5% boric acid may be used. Where the sheet does not need to be stress-relief annealed an organic, or mixed organic/inorganic, film may be applied to the coated sheet.
GB01813/67A 1966-03-18 1967-03-14 Method of Forming Electric Insulating Films on Al-Containing Silicon Steel Sheet and Surface-Coated Al-Containing Silicon Steel Sheet Expired GB1183092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP41016902A JPS5112450B1 (en) 1966-03-18 1966-03-18

Publications (1)

Publication Number Publication Date
GB1183092A true GB1183092A (en) 1970-03-04

Family

ID=11929057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01813/67A Expired GB1183092A (en) 1966-03-18 1967-03-14 Method of Forming Electric Insulating Films on Al-Containing Silicon Steel Sheet and Surface-Coated Al-Containing Silicon Steel Sheet

Country Status (7)

Country Link
US (1) US3522108A (en)
JP (1) JPS5112450B1 (en)
BE (1) BE695635A (en)
DE (1) DE1621533B2 (en)
FR (1) FR1536951A (en)
GB (1) GB1183092A (en)
SE (1) SE327322B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020844A1 (en) * 1978-06-09 1981-01-07 CENTRO SVILUPPO MATERIALI S.p.A. Improvement in the manufacture of oriented grain electrical steel sheet
EP0099619A2 (en) * 1982-07-19 1984-02-01 Allegheny Ludlum Steel Corporation Method for producing cube-on-edge oriented silicon steel
DE7716282U1 (en) 1976-05-24 1984-05-24 Centro Sperimentale Metallurgico S.p.A., 00129 Roma GRAIN-ORIENTED SILICON STEEL TAPE
EP4079870A4 (en) * 2019-12-20 2023-07-26 Posco Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and manufacturing method therefor

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632362A (en) * 1969-06-27 1972-01-04 Nippon Steel Corp Insulation coating for electrical steel sheet and method of application
US3719911A (en) * 1969-10-24 1973-03-06 Hitachi Ltd Laminated magnetic coil materials
JPS4813814B1 (en) * 1969-12-18 1973-05-01
BE789262A (en) * 1971-09-27 1973-01-15 Nippon Steel Corp PROCESS FOR FORMING AN INSULATING FILM ON A SILICON ORIENTED STEEL STRIP
US3833431A (en) * 1971-12-09 1974-09-03 Westinghouse Electric Corp Process for continuously annealed silicon steel using tension-producing glass
US4160681A (en) * 1977-12-27 1979-07-10 Allegheny Ludlum Industries, Inc. Silicon steel and processing therefore
US4298409A (en) * 1979-12-10 1981-11-03 Allied Chemical Corporation Method for making iron-metalloid amorphous alloys for electromagnetic devices
US4482401A (en) * 1982-07-19 1984-11-13 Allegheny Ludlum Steel Corporation Method for producing cube-on-edge oriented silicon steel
US4512823A (en) * 1982-09-22 1985-04-23 Calgon Corporation Barium or chromium additives to magnesium oxide coating slurry
CN100509180C (en) * 2007-05-16 2009-07-08 山东齐鲁电机制造有限公司 Baking finish of water-soluble silicon sheet varnish
KR101122754B1 (en) * 2008-04-22 2012-03-23 신닛뽄세이테쯔 카부시키카이샤 Plated steel sheet and method of hot-pressing plated steel sheet
JP2014198874A (en) * 2013-03-29 2014-10-23 株式会社神戸製鋼所 Steel material excellent in corrosion resistance and magnetic properties and method of producing the same
KR101762341B1 (en) * 2015-12-18 2017-07-27 주식회사 포스코 Annealing separating agent for oriented electrical steel, oriented electrical steel, and method for manufacturing oriented electrical steel
CN115725906B (en) * 2021-08-30 2024-02-13 宝山钢铁股份有限公司 Non-magnetized annealed electromagnetic pure iron steel plate for plating zinc, aluminum and magnesium for high-voltage direct-current relay and manufacturing method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051589A (en) * 1958-08-13 1962-08-28 Pfaudler Permutit Inc Corrosion resistant coated equipment and methods of making the same
US3151000A (en) * 1959-08-28 1964-09-29 Hooker Chemical Corp Method of applying highly heat resistant protective coatings to metallic surfaces
US3105781A (en) * 1960-05-02 1963-10-01 Gen Electric Method for making cube-on-edge texture in high purity silicon-iron
US3368712A (en) * 1960-07-05 1968-02-13 Ritter Pfaudler Corp Semicrystalline glass and method of applying the same to metallic bases
US3132056A (en) * 1961-05-19 1964-05-05 Gen Electric Insulating coating for magnetic sheet material and method for producing the same
US3259526A (en) * 1962-04-24 1966-07-05 Honeywell Inc Method of heat treatment
US3207636A (en) * 1962-06-26 1965-09-21 Yawata Iron & Steel Co Method for coating silicon steel transformer sheets and composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7716282U1 (en) 1976-05-24 1984-05-24 Centro Sperimentale Metallurgico S.p.A., 00129 Roma GRAIN-ORIENTED SILICON STEEL TAPE
EP0020844A1 (en) * 1978-06-09 1981-01-07 CENTRO SVILUPPO MATERIALI S.p.A. Improvement in the manufacture of oriented grain electrical steel sheet
EP0099619A2 (en) * 1982-07-19 1984-02-01 Allegheny Ludlum Steel Corporation Method for producing cube-on-edge oriented silicon steel
EP0099619A3 (en) * 1982-07-19 1984-07-25 Allegheny Ludlum Steel Corporation Method for producing cube-on-edge oriented silicon steel
EP4079870A4 (en) * 2019-12-20 2023-07-26 Posco Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and manufacturing method therefor

Also Published As

Publication number Publication date
DE1621533B2 (en) 1971-11-18
US3522108A (en) 1970-07-28
BE695635A (en) 1967-09-01
FR1536951A (en) 1968-08-23
JPS5112450B1 (en) 1976-04-20
DE1621533A1 (en) 1971-11-18
SE327322B (en) 1970-08-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired