GB1049886A - Method of manufacturing permanent magnets having large coercive force - Google Patents

Method of manufacturing permanent magnets having large coercive force

Info

Publication number
GB1049886A
GB1049886A GB37446/63A GB3744663A GB1049886A GB 1049886 A GB1049886 A GB 1049886A GB 37446/63 A GB37446/63 A GB 37446/63A GB 3744663 A GB3744663 A GB 3744663A GB 1049886 A GB1049886 A GB 1049886A
Authority
GB
United Kingdom
Prior art keywords
permanent magnets
coercive force
alloy
large coercive
chill
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
GB37446/63A
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.)
ZH DENKI JIKI ZAIRYO KENKYUSHO
Original Assignee
ZH DENKI JIKI ZAIRYO KENKYUSHO
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 ZH DENKI JIKI ZAIRYO KENKYUSHO filed Critical ZH DENKI JIKI ZAIRYO KENKYUSHO
Publication of GB1049886A publication Critical patent/GB1049886A/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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • 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
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • 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
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

In a process for the manufacture of permanent magnets having a large coercive force, ternary alloys consisting of Co 20-92%, Al 7.9-26% and a trace up to 65% Ni with or without impurities are heat treated in one of the following ways. 1) The alloy is chill-cast in a mould and then heated to above 350 DEG C. to precipitate fine ferromagnetic particles in a non magnetic matrix. 2) After chill-casting the alloy is solid solution treated prior to the heat treatment above 350 DEG C. 3) The alloy when cast, or after solid solution treatment, is cooled in a controlled manner to precipitate fine ferromagnetic particles in a non-magnetic matrix.
GB37446/63A 1962-09-28 1963-09-24 Method of manufacturing permanent magnets having large coercive force Expired GB1049886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4234262 1962-09-28

Publications (1)

Publication Number Publication Date
GB1049886A true GB1049886A (en) 1966-11-30

Family

ID=12633329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37446/63A Expired GB1049886A (en) 1962-09-28 1963-09-24 Method of manufacturing permanent magnets having large coercive force

Country Status (3)

Country Link
US (1) US3203838A (en)
DE (1) DE1458556B2 (en)
GB (1) GB1049886A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121935B1 (en) * 1964-08-04 1976-07-06
US3932204A (en) * 1969-10-31 1976-01-13 Elect & Magn Alloys Res Inst Cobalt-aluminum magnetic materials with high coercive force
JPS6013408B2 (en) * 1979-03-19 1985-04-06 株式会社井上ジャパックス研究所 Manufacturing method of magnetically anisotropic alloy magnet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB370630A (en) * 1931-03-20 1932-04-14 Siemens Ag Improvements in or relating to iron-nickel alloys
US2082041A (en) * 1935-05-08 1937-06-01 Westinghouse Electric & Mfg Co Process for producing permanent magnets
CH193452A (en) * 1935-11-16 1937-10-15 Deutsche Edelstahlwerke Ag Permanent magnet made of crushed material.
US2245477A (en) * 1936-03-17 1941-06-10 Hartford Nat Bank & Trust Co Permanent magnet and method of making same
US2442762A (en) * 1943-09-09 1948-06-08 Bell Telephone Labor Inc Methods of improving the magnetic quality of anisotropic permanent magnets containing iron, nickel, cobalt, and aluminum
US2664874A (en) * 1947-06-23 1954-01-05 Shell Dev Coated metal product and method of producing same

Also Published As

Publication number Publication date
DE1458556B2 (en) 1971-09-30
DE1458556A1 (en) 1968-12-19
US3203838A (en) 1965-08-31

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