GB1030350A - Method for making bidirectional iron-aluminium alloy magnetic sheet - Google Patents

Method for making bidirectional iron-aluminium alloy magnetic sheet

Info

Publication number
GB1030350A
GB1030350A GB51307/63A GB5130763A GB1030350A GB 1030350 A GB1030350 A GB 1030350A GB 51307/63 A GB51307/63 A GB 51307/63A GB 5130763 A GB5130763 A GB 5130763A GB 1030350 A GB1030350 A GB 1030350A
Authority
GB
United Kingdom
Prior art keywords
aluminium
iron
alloy
aluminium alloy
magnetic sheet
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
GB51307/63A
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of GB1030350A publication Critical patent/GB1030350A/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
    • H01F1/16—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
    • 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
    • C21D8/1227—Warm rolling
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C21D8/1255—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 with diffusion of elements, e.g. decarburising, nitriding
    • 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
    • C21D8/1266—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 between cold rolling steps
    • 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

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

Abstract

Bidirectionally orientated magnetic sheets are formed from an iron alloy containing 2-6% of aluminium and the balance iron incidental ingredients and impurities by a process comprising initially annealing a thick sheet of the alloy at a temperature above the primary recrystallisation temperature, generally above 700 DEG C., warm rolling the sheet at least once in the range 200-500 DEG C and finally annealing in the range 1050-1350 DEG C. Aluminium in the alloy can be replaced by silicon, the total content of aluminium and silicon being 2-6% and the aluminium content being at least 1%. Carbon may be present under 0.08% and sulphur under 0.05%. In an example an alloy plate was annealed in wet hydrogen at 800 DEG C. for 30 minutes, cooled quickly to 300 DEG C., warm rolled twice at 300 DEG C. with an intermediate anneal at 1000 DEG C. in wet hydrogen, maintained at 500 DEG C. for several hours in dry hydrogen and finally annealed at 1100 DEG C. for four hours.
GB51307/63A 1962-12-31 1963-12-31 Method for making bidirectional iron-aluminium alloy magnetic sheet Expired GB1030350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP37062 1962-12-31

Publications (1)

Publication Number Publication Date
GB1030350A true GB1030350A (en) 1966-05-18

Family

ID=11471889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51307/63A Expired GB1030350A (en) 1962-12-31 1963-12-31 Method for making bidirectional iron-aluminium alloy magnetic sheet

Country Status (3)

Country Link
US (1) US3279960A (en)
DE (1) DE1227490B (en)
GB (1) GB1030350A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410733A (en) * 1965-10-01 1968-11-12 Gen Electric Method of treating p-6 alloys in the form of articles of substantial thickness including the step of warm working
DD299102A7 (en) * 1989-12-06 1992-04-02 ������@����������@��������@��������@��@��������k�� METHOD FOR PRODUCING NONORIENTED ELECTROBLECH

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046717A (en) * 1934-09-18 1936-07-07 Westinghouse Electric & Mfg Co Magnetic material and process for producing same
US2307391A (en) * 1938-10-14 1943-01-05 American Rolling Mill Co Art of producing magnetic material
US3164496A (en) * 1956-09-20 1965-01-05 Gen Electric Magnetic material and method of fabrication
GB852554A (en) * 1957-04-12 1960-10-26 Westinghouse Electric Corp Improvements in or relating to iron-aluminium materials and to methods of producing such materials
US3005738A (en) * 1957-08-16 1961-10-24 Westinghouse Electric Corp Heat treatment of high aluminumiron alloys
US3147157A (en) * 1958-05-26 1964-09-01 Gen Electric Fabrication of magnetic material
US3144363A (en) * 1961-12-14 1964-08-11 Westinghouse Electric Corp Process for producing oriented silicon steel and the product thereof

Also Published As

Publication number Publication date
US3279960A (en) 1966-10-18
DE1227490B (en) 1966-10-27

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