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GB911660A - Double oriented iron-silicon magnetic sheets - Google Patents

Double oriented iron-silicon magnetic sheets

Info

Publication number
GB911660A
GB911660A GB4358060A GB4358060A GB911660A GB 911660 A GB911660 A GB 911660A GB 4358060 A GB4358060 A GB 4358060A GB 4358060 A GB4358060 A GB 4358060A GB 911660 A GB911660 A GB 911660A
Authority
GB
United Kingdom
Prior art keywords
less
alloy
sheet
magnetic sheets
microns
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
GB4358060A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB911660A publication Critical patent/GB911660A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1233—Cold rolling
    • 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
    • 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
    • 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
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1272—Final recrystallisation annealing

Landscapes

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

Abstract

A process of producing magnetic sheets with predominant (100) [001] grain texture from iron alloys containing 2 to 4.5% silicon, up to 0.08% carbon, up to 0.5% manganese, balance iron, comprises first annealing a hot rolled sheet of the alloy at 900-1200 DEG C. for 1-50 hours in a protective, preferably decarburizing, environment, such as in an atmosphere of hydrogen, dissociated ammonia, or in a vacuum of less than 200 microns, to produce grains with diameters averaging at least half the thickness of the hot rolled sheet, e.g. 0.02-0.2 inch such as is produced by hot rolling slabs or ingots of the alloy at the above temperature, then cold rolling the annealed sheet to size in a single stage to effect reduction by 60 to 95%, and finally annealing at 1000-1425 DEG C. for 2-50 hours in a reducing environment, e.g. in a vacuum at less than 25 microns or in hydrogen having a dew point of - 35 DEG C. or less, to obtain secondary recrystallization, such that any continuous oxide films disappear during the final anneal, preferably by pickling the sheet prior or subsequent to the first anneal. An alloy containing 0.041% C, 0.019% S, 0.019% P, 0.10% Mn, 3.19% Si, 0.0072% Al, 0.0028% N, balance Fe, is specified.
GB4358060A 1960-01-28 1960-12-19 Double oriented iron-silicon magnetic sheets Expired GB911660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514660A 1960-01-28 1960-01-28

Publications (1)

Publication Number Publication Date
GB911660A true GB911660A (en) 1962-11-28

Family

ID=21714413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4358060A Expired GB911660A (en) 1960-01-28 1960-12-19 Double oriented iron-silicon magnetic sheets

Country Status (2)

Country Link
DE (1) DE1408976A1 (en)
GB (1) GB911660A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533586A1 (en) * 1982-09-24 1984-03-30 Nippon Steel Corp PROCESS FOR MANUFACTURING AN ORIENTED GRAIN ELECTRIC STEEL SHEET HAVING A HIGH DENSITY OF MAGNETIC FLUX
WO2011110450A1 (en) * 2010-03-08 2011-09-15 Nv Bekaert Sa A sheared steel wire adapted for a magnetic flux path
CN116200661A (en) * 2023-01-04 2023-06-02 广东电网有限责任公司 Cubic double-oriented silicon steel and preparation method and application thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51942B2 (en) * 1971-09-02 1976-01-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533586A1 (en) * 1982-09-24 1984-03-30 Nippon Steel Corp PROCESS FOR MANUFACTURING AN ORIENTED GRAIN ELECTRIC STEEL SHEET HAVING A HIGH DENSITY OF MAGNETIC FLUX
WO2011110450A1 (en) * 2010-03-08 2011-09-15 Nv Bekaert Sa A sheared steel wire adapted for a magnetic flux path
CN116200661A (en) * 2023-01-04 2023-06-02 广东电网有限责任公司 Cubic double-oriented silicon steel and preparation method and application thereof

Also Published As

Publication number Publication date
DE1408976A1 (en) 1968-10-17

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