GB639252A - Heat treatment of magnetic alloys containing iron - Google Patents

Heat treatment of magnetic alloys containing iron

Info

Publication number
GB639252A
GB639252A GB28585/46A GB2858546A GB639252A GB 639252 A GB639252 A GB 639252A GB 28585/46 A GB28585/46 A GB 28585/46A GB 2858546 A GB2858546 A GB 2858546A GB 639252 A GB639252 A GB 639252A
Authority
GB
United Kingdom
Prior art keywords
strip
temperature
containing iron
alloys containing
coil
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
GB28585/46A
Inventor
Walter Frederick Randall
Harry Houchen Scholefield
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.)
TRANSFORMER STEELS Ltd
Original Assignee
TRANSFORMER STEELS 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 TRANSFORMER STEELS Ltd filed Critical TRANSFORMER STEELS Ltd
Priority to GB28585/46A priority Critical patent/GB639252A/en
Publication of GB639252A publication Critical patent/GB639252A/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • 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
    • 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
    • C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

639,252. Annealing. TRANSFORMER STEELS, Ltd. Sept. 24, 1946, No. 28585. [Class 72] High magnetic permeability is developed in strip or wire of magnetic alloys containing iron by passing the wire or strip continuously through a narrow heating zone of high intensity alternating magnetic field to heat it to a temperature in excess of 1100‹C. As shown a strip, 6 of 3 per cent silicon steel .012-.032 inches thick from a coil 1 is passed under a pancake-shaped heating coil 3 and raised rapidly to a temperature of 1200-1350‹C, at which it is maintained for a very short time resulting in the expulsion of impurities and improvement in the magnetic properties. A shoe 4 prevents distortion of the strip during the heating temperature. A spiral coil through which the strip is passed may be used. Specification 366,523 is referred to.
GB28585/46A 1946-09-24 1946-09-24 Heat treatment of magnetic alloys containing iron Expired GB639252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28585/46A GB639252A (en) 1946-09-24 1946-09-24 Heat treatment of magnetic alloys containing iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28585/46A GB639252A (en) 1946-09-24 1946-09-24 Heat treatment of magnetic alloys containing iron

Publications (1)

Publication Number Publication Date
GB639252A true GB639252A (en) 1950-06-28

Family

ID=10277925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28585/46A Expired GB639252A (en) 1946-09-24 1946-09-24 Heat treatment of magnetic alloys containing iron

Country Status (1)

Country Link
GB (1) GB639252A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144364A (en) * 1960-11-14 1964-08-11 Westinghouse Electric Corp Induction annealing of magnetic alloy sheet
US3165428A (en) * 1962-12-27 1965-01-12 Westinghouse Electric Corp Production of thin goss oriented magnetic materials
DE1226128B (en) * 1955-05-03 1966-10-06 Walzwerk Neviges G M B H Method and device for the heat treatment of metal sheets, in particular electrical sheets, in a magnetic field
DE1259367B (en) * 1957-06-11 1968-01-25 Forsch Metallische Spezialwerk Process for the production of a magnetizable material with a rectangular hysteresis loop and preferably high initial permeability from Ni-Fe alloys

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226128B (en) * 1955-05-03 1966-10-06 Walzwerk Neviges G M B H Method and device for the heat treatment of metal sheets, in particular electrical sheets, in a magnetic field
DE1259367B (en) * 1957-06-11 1968-01-25 Forsch Metallische Spezialwerk Process for the production of a magnetizable material with a rectangular hysteresis loop and preferably high initial permeability from Ni-Fe alloys
US3144364A (en) * 1960-11-14 1964-08-11 Westinghouse Electric Corp Induction annealing of magnetic alloy sheet
US3165428A (en) * 1962-12-27 1965-01-12 Westinghouse Electric Corp Production of thin goss oriented magnetic materials

Similar Documents

Publication Publication Date Title
GB639252A (en) Heat treatment of magnetic alloys containing iron
GB392764A (en) Improvements in and relating to electric furnaces
GB263774A (en) Improvements in and relating to the heat treatment of metallic pieces
GB768441A (en) Improvements in and relating to the hardening of iron and steel alloys
FR609266A (en) Improvement in the heating of electric induction furnaces by high frequency currents
SU62342A1 (en) Induction heating method of tempered steel for tempering
GB589551A (en) Improvements in or relating to the heat treatment of silicon-iron alloys to reduce magnetostriction
SU77960A1 (en) Inductor for surface heating of metal products with high frequency currents
SU52408A1 (en) Continuous electric induction furnace for heat treatment of steel
GB267253A (en) Improvements in or relating to the heat treatment of iron or steel
SU82877A1 (en) Multi-turn inductor
SU43098A1 (en) Induction Furnace for annealing wire in coils
GB979069A (en) Improved process and appliance for the surface treatment of pinions
GB566866A (en) Improved method of and apparatus for heat treating metal
GB682558A (en) Improvements relating to high-frequency induction heating
ES208793A1 (en) Procedure for tempering or hardening of iron and steel alloys (Machine-translation by Google Translate, not legally binding)
FR1032248A (en) Means for protecting metal parts against surface oxidation during induction heating
GB296137A (en) Improved magnetic alloys
GB641053A (en) Improvements in or relating to the heating of metal strips
GB833487A (en) Process and apparatus for improving the qualities of sheet metal, more especially sheet metal for use in electrical equipment
CH269570A (en) Process for the decarburization of iron and iron alloys.
FR954113A (en) Method and apparatus for heat treating coils formed from strip
GB304196A (en) Improvements in and relating to the heat treatment of steel
GB454754A (en) Improvements in electric induction furnaces
GB657246A (en) Improvements relating to induction heating apparatus