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GB878819A - Improvements in or relating to oriented steel sheets or the like - Google Patents

Improvements in or relating to oriented steel sheets or the like

Info

Publication number
GB878819A
GB878819A GB32837/59A GB3283759A GB878819A GB 878819 A GB878819 A GB 878819A GB 32837/59 A GB32837/59 A GB 32837/59A GB 3283759 A GB3283759 A GB 3283759A GB 878819 A GB878819 A GB 878819A
Authority
GB
United Kingdom
Prior art keywords
strip
heating
cold rolling
minute
reduce
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
GB32837/59A
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.)
Westinghouse Electric 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 GB878819A publication Critical patent/GB878819A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/18—Making special types or portions of network by methods or means specially adapted therefor of meshed work for filters or sieves
    • 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
    • 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

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

Abstract

Grain oriented silicon steel strip is prepared from hot rolled strip 0.075 to 0.120 inches thick and consists of 2.2-5.25% silicon, 0.001-0.05% of at least one material selected from metal oxides, metal sulphides or metal nitrides, up to 0.02% carbon and remainder iron, by-(1) cold rolling to reduce by 60-80%: (2) heating at 1600-2,000 DEG C. per minute to 850-1050 DEG C. in a non-oxidizing atmosphere and retaining at said temperature long enough to effect recrystallization: (3) cold rolling to reduce by 50-60%: (4) reheating as in (2) above: (5) heating at 2-15 DEG C. a minute to 1,000-1,300 DEG C. and annealing for 1-8 hours. Prior to cold rolling the strip may be annealed at 1,050-1,150 DEG C. for a period sufficient to produce a grain size of 1-3 mm. The intermediate annealings (steps (2) and (4)) do not last longer than one minute. The strip may be decarburized by heating in wet hydrogen at 600-800 DEG C. before or after annealing step.
GB32837/59A 1958-10-03 1959-09-28 Improvements in or relating to oriented steel sheets or the like Expired GB878819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US765027A US2965526A (en) 1958-10-03 1958-10-03 Method of heat treating silicon steel

Publications (1)

Publication Number Publication Date
GB878819A true GB878819A (en) 1961-10-04

Family

ID=25072436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32837/59A Expired GB878819A (en) 1958-10-03 1959-09-28 Improvements in or relating to oriented steel sheets or the like

Country Status (4)

Country Link
US (1) US2965526A (en)
DE (1) DE1181256B (en)
FR (1) FR1236962A (en)
GB (1) GB878819A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB917282A (en) * 1958-03-18 1963-01-30 Yawata Iron & Steel Co Method of producing cube oriented silicon steel sheet and strip
US3136666A (en) * 1960-01-27 1964-06-09 Yawata Iron & Steel Co Method for producing secondary recrystallization grain of cube texture
DE1408973A1 (en) * 1960-02-16 1969-03-06 Moebius Dr Ing Hans Eberhard Process for obtaining a distinctive cube texture in sheets and strips made of soft silicon and / or aluminum-containing iron alloys
US3144364A (en) * 1960-11-14 1964-08-11 Westinghouse Electric Corp Induction annealing of magnetic alloy sheet
US3144363A (en) * 1961-12-14 1964-08-11 Westinghouse Electric Corp Process for producing oriented silicon steel and the product thereof
BE628759A (en) * 1962-02-23
US3271203A (en) * 1962-10-16 1966-09-06 Gen Electric Method for producing oriented silicon-iron
US3409480A (en) * 1965-01-07 1968-11-05 Gen Electric Method of heat treating silicon steel sheet
US4115161A (en) * 1977-10-12 1978-09-19 Allegheny Ludlum Industries, Inc. Processing for cube-on-edge oriented silicon steel
DE3382043D1 (en) * 1982-08-18 1991-01-17 Kawasaki Steel Co METHOD FOR PRODUCING CORNORIENTED SHEETS OR TAPES FROM SILICON STEEL WITH HIGH MAGNETIC INDUCTION AND LOW IRON LOSS.
US4478653A (en) * 1983-03-10 1984-10-23 Armco Inc. Process for producing grain-oriented silicon steel
US4898626A (en) * 1988-03-25 1990-02-06 Armco Advanced Materials Corporation Ultra-rapid heat treatment of grain oriented electrical steel
US7224096B2 (en) * 1997-10-16 2007-05-29 Honeywell International Inc. Rotatable assemblies having chemically bonded lamination stacks
JP6512386B2 (en) * 2017-02-20 2019-05-15 Ｊｆｅスチール株式会社 Method of manufacturing directional magnetic steel sheet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112084A (en) * 1934-11-01 1938-03-22 Westinghouse Electric & Mfg Co Magnetic material and method of producing the same
US2113537A (en) * 1935-10-29 1938-04-05 Heraeus Vacuumschmeise A G Method of rolling and treating silicon steel
US2307391A (en) * 1938-10-14 1943-01-05 American Rolling Mill Co Art of producing magnetic material
US2287467A (en) * 1940-01-03 1942-06-23 American Rolling Mill Co Process of producing silicon steel

Also Published As

Publication number Publication date
DE1181256B (en) 1964-11-12
US2965526A (en) 1960-12-20
FR1236962A (en) 1960-07-22

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