GB660580A - Improvements in and relating to anisotropic permanent magnets - Google Patents

Improvements in and relating to anisotropic permanent magnets

Info

Publication number
GB660580A
GB660580A GB967648A GB967648A GB660580A GB 660580 A GB660580 A GB 660580A GB 967648 A GB967648 A GB 967648A GB 967648 A GB967648 A GB 967648A GB 660580 A GB660580 A GB 660580A
Authority
GB
United Kingdom
Prior art keywords
per cent
alloy
anisotropic permanent
iron
relating
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
GB967648A
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
Philips Electronics 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, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB967648A priority Critical patent/GB660580A/en
Publication of GB660580A publication Critical patent/GB660580A/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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt

Landscapes

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

Abstract

In a method of making an anisotropic permanent magnet of an aluminium-nickel-cobalt-iron alloy, the alloy is produced having a preponderating [100] crystal orientation, the magnetic field used for magnetic hardening is applied parallel to the [100] direction and the magnet is finally magnetized in the same direction. The required orientation may be obtained by abstracting heat in the required direction from the molten metal in a mould, e.g. by a water-cooled chill while the remainder is kept warm in a furnace. A sand mould may have a coated metal bottom and small electric heaters embedded in the sides. The alloy may consist of 10-40 per cent Co, 10-28 per cent Ni, 6-11 per cent Al, 0-7 per cent Cu and 0-7 per cent Ti, with or without less than 1 per cent each of W, Cr, Mo, V, Zr, Ca, Ce and Si, the balance being iron and unavoidable impurities. Specification 522,731 is referred to.
GB967648A 1948-04-06 1948-04-06 Improvements in and relating to anisotropic permanent magnets Expired GB660580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB967648A GB660580A (en) 1948-04-06 1948-04-06 Improvements in and relating to anisotropic permanent magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB967648A GB660580A (en) 1948-04-06 1948-04-06 Improvements in and relating to anisotropic permanent magnets

Publications (1)

Publication Number Publication Date
GB660580A true GB660580A (en) 1951-11-07

Family

ID=9876606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB967648A Expired GB660580A (en) 1948-04-06 1948-04-06 Improvements in and relating to anisotropic permanent magnets

Country Status (1)

Country Link
GB (1) GB660580A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198571B (en) * 1964-05-16 1965-08-12 Beteiligungs & Patentverw Gmbh Process for the production of anisotropic, crystal-oriented permanent magnets from a cobalt-iron-nickel-aluminum-titanium-copper alloy
DE1219689B (en) * 1964-06-09 1966-06-23 Beteiligungs & Patentverw Gmbh Manufacture of anisotropic, crystal-oriented permanent magnets from a cobalt-iron-nickel-aluminum-copper alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198571B (en) * 1964-05-16 1965-08-12 Beteiligungs & Patentverw Gmbh Process for the production of anisotropic, crystal-oriented permanent magnets from a cobalt-iron-nickel-aluminum-titanium-copper alloy
DE1219689B (en) * 1964-06-09 1966-06-23 Beteiligungs & Patentverw Gmbh Manufacture of anisotropic, crystal-oriented permanent magnets from a cobalt-iron-nickel-aluminum-copper alloy

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