GB448046A - Improvements in or relating to magnetic materials - Google Patents

Improvements in or relating to magnetic materials

Info

Publication number
GB448046A
GB448046A GB34687/34A GB3468734A GB448046A GB 448046 A GB448046 A GB 448046A GB 34687/34 A GB34687/34 A GB 34687/34A GB 3468734 A GB3468734 A GB 3468734A GB 448046 A GB448046 A GB 448046A
Authority
GB
United Kingdom
Prior art keywords
container
relating
air
magnetic materials
rolling
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
GB34687/34A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB448046A publication Critical patent/GB448046A/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
    • C21D8/1216—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

Landscapes

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

Abstract

A band of an alloy containing equal quantities of nickel and iron is recrystallized after cold-rolling by annealing in a container in hydrogen at 1100 DEG C. for one hour, and is exposed in the container to air until cooled to 400 DEG C., and is then removed from the container and cooled in air to room temperature. Further cold-rolling may be followed by heating to 400 DEG C. and cooling in air.
GB34687/34A 1933-12-04 1934-12-03 Improvements in or relating to magnetic materials Expired GB448046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE448046X 1933-12-04

Publications (1)

Publication Number Publication Date
GB448046A true GB448046A (en) 1936-06-02

Family

ID=6538083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34687/34A Expired GB448046A (en) 1933-12-04 1934-12-03 Improvements in or relating to magnetic materials

Country Status (3)

Country Link
US (1) US2147791A (en)
GB (1) GB448046A (en)
NL (1) NL46302C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290633A (en) * 1961-12-14 1966-12-06 Hitachi Ltd Laminated core with bidirectional joints
US3153214A (en) * 1962-04-26 1964-10-13 Westinghouse Electric Corp Wound magnetic core structure for inductive apparatus
US3247031A (en) * 1963-10-14 1966-04-19 Armco Steel Corp Method of hot rolling nickel-iron magnetic sheet stock
US3297434A (en) * 1965-07-19 1967-01-10 Armco Steel Corp Nickel-iron magnetic sheet stock
US4082580A (en) * 1969-08-12 1978-04-04 Vacuumschmelze Gmbh Iron-nickel-molybdenum alloy having improved stability and high initial permeability
US4547713A (en) * 1982-11-05 1985-10-15 Kollmorgen Technologies Corporation Toroidally wound brushless DC motor

Also Published As

Publication number Publication date
NL46302C (en)
US2147791A (en) 1939-02-21

Similar Documents

Publication Publication Date Title
GB448046A (en) Improvements in or relating to magnetic materials
GB845167A (en) Improvements in magnetic material
GB1013339A (en) Improved magnetic alloys
GB766061A (en) Improvements in or relating to uranium alloys
GB945066A (en) Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy
GB370786A (en) Improved method of and means for cooling tuyeres and like air inlet members
GB821652A (en) Precipitation-hardened welded castings
GB452497A (en) Improvements in the treatment of iron-silicon alloys
GB375776A (en) Improvements in processes for improving iron-titanium alloys
GB630797A (en) Ferrous alloy having a high strength at high temperatures
GB405788A (en) Improvements in or relating to aluminium magnesium alloys and method of making same
GB431511A (en) Improvements in and relating to magnetic alloys
GB424327A (en) Improvements in dynamo and transformer laminations and the like
GB825903A (en) Improvements in or relating to methods of treating silicon-iron alloys
GB841731A (en) Improvements in nickel-iron alloys
GB981831A (en) Improvements in or relating to austenitic alloys
GB387009A (en) Improvements in and relating to the heat treatment of magnetic materials
GB767719A (en) Improvements in or relating to welding
GB446602A (en) Improvements in and relating to band or ring-shaped magnetic cores
GB485074A (en) Improvements in and relating to the manufacture of alloys for permanent magnets
GB260835A (en) Improvements in or relating to alloy steels
GB837514A (en) Improvements relating to metallic abrasives
GB424746A (en) Improvements in and relating to magnetic materials
GB486325A (en) Improvements in and relating to the manufacture of glass vessels
GB458959A (en) Process for the precipitation of copper from solutions containing copper