CA1036212A - Bonding agent for cobalt-rare earth alloy magnets and composite - Google Patents

Bonding agent for cobalt-rare earth alloy magnets and composite

Info

Publication number
CA1036212A
CA1036212A CA216,293A CA216293A CA1036212A CA 1036212 A CA1036212 A CA 1036212A CA 216293 A CA216293 A CA 216293A CA 1036212 A CA1036212 A CA 1036212A
Authority
CA
Canada
Prior art keywords
cobalt
composite
rare earth
bonding agent
earth alloy
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
CA216,293A
Other languages
French (fr)
Inventor
Donald L. Martin
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of CA1036212A publication Critical patent/CA1036212A/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
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/58—Processes of forming magnets
CA216,293A 1974-01-07 1974-12-16 Bonding agent for cobalt-rare earth alloy magnets and composite Expired CA1036212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431127A US3887395A (en) 1974-01-07 1974-01-07 Cobalt-rare earth magnets comprising sintered products bonded with cobalt-rare earth bonding agents

Publications (1)

Publication Number Publication Date
CA1036212A true CA1036212A (en) 1978-08-08

Family

ID=23710594

Family Applications (1)

Application Number Title Priority Date Filing Date
CA216,293A Expired CA1036212A (en) 1974-01-07 1974-12-16 Bonding agent for cobalt-rare earth alloy magnets and composite

Country Status (2)

Country Link
US (1) US3887395A (en)
CA (1) CA1036212A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616777A5 (en) * 1975-09-23 1980-04-15 Bbc Brown Boveri & Cie
US4076561A (en) * 1976-10-15 1978-02-28 General Motors Corporation Method of making a laminated rare earth metal-cobalt permanent magnet body
US4174966A (en) * 1978-12-15 1979-11-20 The United States Of America As Represented By The Secretary Of The Interior High coercive force rare earth metal-cobalt magnets containing copper and magnesium
US4224067A (en) * 1979-04-27 1980-09-23 The United States Of America As Represented By The Secretary Of The Army Permanent magnet materials
DE3047701A1 (en) * 1980-12-18 1982-07-15 Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn METHOD FOR PRODUCING ANISOTROPAL PERMANENT MAGNETS AND TUBULAR PERMANENT MAGNETS PRODUCED THEREFORE
US4710239A (en) * 1984-09-14 1987-12-01 General Motors Corporation Hot pressed permanent magnet having high and low coercivity regions
US4952252A (en) * 1985-06-14 1990-08-28 Union Oil Company Of California Rare earth-iron-boron-permanent magnets
US4933009A (en) * 1985-06-14 1990-06-12 Union Oil Company Of California Composition for preparing rare earth-iron-boron-permanent magnets
US4762574A (en) * 1985-06-14 1988-08-09 Union Oil Company Of California Rare earth-iron-boron premanent magnets
DE19962232B4 (en) * 1999-12-22 2006-05-04 Vacuumschmelze Gmbh Method for producing rod-shaped permanent magnets

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239323A (en) * 1961-06-28 1966-03-08 Gen Electric Method for sealing ceramics
US3236700A (en) * 1963-06-13 1966-02-22 Magnetfabrik Bonn G M B H Magnetically anisotropic bodies having a concentration gradation of material and method of making the same
US3370342A (en) * 1965-05-07 1968-02-27 Ibm Fluxless soldering process for rare earth chalcogenides
US3655464A (en) * 1970-04-30 1972-04-11 Gen Electric Process of preparing a liquid sintered cobalt-rare earth intermetallic product

Also Published As

Publication number Publication date
US3887395A (en) 1975-06-03

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