GB866769A - Coated metallic sheet and process of producing same - Google Patents

Coated metallic sheet and process of producing same

Info

Publication number
GB866769A
GB866769A GB793/58A GB79358A GB866769A GB 866769 A GB866769 A GB 866769A GB 793/58 A GB793/58 A GB 793/58A GB 79358 A GB79358 A GB 79358A GB 866769 A GB866769 A GB 866769A
Authority
GB
United Kingdom
Prior art keywords
metallic sheet
raised portions
adherent
producing same
cellulose
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
GB793/58A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers 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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB866769A publication Critical patent/GB866769A/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
    • 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
    • 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
    • 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
    • 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
    • H01F1/16—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 in the form of sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Laminated Bodies (AREA)

Abstract

A metallic sheet having magnetic properties is provided with an adherent coating of a refractory electrical insulation material the exposed surface of which is non-adherent and has raised portions. Suitable refractory materials are lime, dolomite, magnesium oxide, silica, and mixtures thereof, which may be suspended in an aqueous solution of carboxymethyl-hydroxyethyl cellulose, or an organic solvent solution of methyl cellulose, cellulose acetate or an alkyd resin. The mixture may be applied to one or both sides of a long strip such as silicon steel strip which is passed between grooved rollers so as to provide the raised portions and subsequently rolled up and annealed in a furnace, the coating serving to prevent the plies of the roll adhering to one another. The coated metal may be used for transformer cores. U.S.A. Specification 2,141,329 is referred to.
GB793/58A 1957-01-11 1958-01-08 Coated metallic sheet and process of producing same Expired GB866769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866769XA 1957-01-11 1957-01-11

Publications (1)

Publication Number Publication Date
GB866769A true GB866769A (en) 1961-05-03

Family

ID=22200139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB793/58A Expired GB866769A (en) 1957-01-11 1958-01-08 Coated metallic sheet and process of producing same

Country Status (1)

Country Link
GB (1) GB866769A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221595A1 (en) * 1985-10-18 1987-05-13 Koninklijke Philips Electronics N.V. Method of providing a bonding, electrically insulating layer, metal ribbon coated with such a layer, and low-loss magnet core
WO1999030335A1 (en) * 1997-12-11 1999-06-17 Krupp Vdm Gmbh Method for coating magnetic bands or sheet metal
CN114561696A (en) * 2022-02-25 2022-05-31 电子科技大学 Preparation method of ultra-large-area single crystal metal foil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221595A1 (en) * 1985-10-18 1987-05-13 Koninklijke Philips Electronics N.V. Method of providing a bonding, electrically insulating layer, metal ribbon coated with such a layer, and low-loss magnet core
WO1999030335A1 (en) * 1997-12-11 1999-06-17 Krupp Vdm Gmbh Method for coating magnetic bands or sheet metal
CN114561696A (en) * 2022-02-25 2022-05-31 电子科技大学 Preparation method of ultra-large-area single crystal metal foil

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