EP0338597A3 - Aimants permanents - Google Patents

Aimants permanents Download PDF

Info

Publication number
EP0338597A3
EP0338597A3 EP19890111005 EP89111005A EP0338597A3 EP 0338597 A3 EP0338597 A3 EP 0338597A3 EP 19890111005 EP19890111005 EP 19890111005 EP 89111005 A EP89111005 A EP 89111005A EP 0338597 A3 EP0338597 A3 EP 0338597A3
Authority
EP
European Patent Office
Prior art keywords
temperature
magnets
mgoe
max
heat treatment
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.)
Granted
Application number
EP19890111005
Other languages
German (de)
English (en)
Other versions
EP0338597B1 (fr
EP0338597A2 (fr
Inventor
Hitoshi Yamamoto
Masato Sagawa
Setsuo Fujimura
Yutaka Matsuura
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals Co 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
Priority claimed from JP59036926A external-priority patent/JPH061726B2/ja
Priority claimed from JP59036924A external-priority patent/JPS60182105A/ja
Priority claimed from JP59036923A external-priority patent/JPS60182104A/ja
Priority claimed from JP59036925A external-priority patent/JPS60182106A/ja
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Priority claimed from EP85102200A external-priority patent/EP0153744B1/fr
Publication of EP0338597A2 publication Critical patent/EP0338597A2/fr
Publication of EP0338597A3 publication Critical patent/EP0338597A3/fr
Application granted granted Critical
Publication of EP0338597B1 publication Critical patent/EP0338597B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
EP89111005A 1984-02-28 1985-02-27 Aimants permanents Expired - Lifetime EP0338597B1 (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP59036926A JPH061726B2 (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP36925/84 1984-02-28
JP36926/84 1984-02-28
JP36924/84 1984-02-28
JP59036924A JPS60182105A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP59036923A JPS60182104A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP59036925A JPS60182106A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP36923/84 1984-02-28
EP85102200A EP0153744B1 (fr) 1984-02-28 1985-02-27 Procédé de fabrication d'aimants permanents

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP85102200A Division EP0153744B1 (fr) 1984-02-28 1985-02-27 Procédé de fabrication d'aimants permanents
EP85102200.4 Division 1985-02-27

Publications (3)

Publication Number Publication Date
EP0338597A2 EP0338597A2 (fr) 1989-10-25
EP0338597A3 true EP0338597A3 (fr) 1991-11-13
EP0338597B1 EP0338597B1 (fr) 1995-01-11

Family

ID=27513335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111005A Expired - Lifetime EP0338597B1 (fr) 1984-02-28 1985-02-27 Aimants permanents

Country Status (1)

Country Link
EP (1) EP0338597B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308384B (en) * 1995-12-21 1999-09-15 Univ Hull Magnetic materials
ES2164528B1 (es) * 1999-04-27 2003-10-16 Univ Barcelona Autonoma Procedimiento para aumentar la coercitividad de un material ferromagnetico.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046075A2 (fr) * 1980-08-11 1982-02-17 Fujitsu Limited Matériau magnétisable sensible à la température
EP0106948A2 (fr) * 1982-09-27 1984-05-02 Sumitomo Special Metals Co., Ltd. alliages magnétisables permanentement, matériaux magnétiques et aimant permanent contenant FeBR ou (Fe,Co)BR (R=terre rare)
EP0125347A2 (fr) * 1983-05-06 1984-11-21 Sumitomo Special Metals Co., Ltd. Aimants isotropes et procédé pour leur fabrication
EP0126802B1 (fr) * 1983-05-25 1988-12-14 Sumitomo Special Metals Co., Ltd. Procédé de fabrication d'un aimant permanant
EP0126179B1 (fr) * 1983-05-21 1988-12-14 Sumitomo Special Metals Co., Ltd. Procédé de fabrication de matériaux magnétiques permanents

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046075A2 (fr) * 1980-08-11 1982-02-17 Fujitsu Limited Matériau magnétisable sensible à la température
EP0106948A2 (fr) * 1982-09-27 1984-05-02 Sumitomo Special Metals Co., Ltd. alliages magnétisables permanentement, matériaux magnétiques et aimant permanent contenant FeBR ou (Fe,Co)BR (R=terre rare)
EP0125347A2 (fr) * 1983-05-06 1984-11-21 Sumitomo Special Metals Co., Ltd. Aimants isotropes et procédé pour leur fabrication
EP0126179B1 (fr) * 1983-05-21 1988-12-14 Sumitomo Special Metals Co., Ltd. Procédé de fabrication de matériaux magnétiques permanents
EP0126802B1 (fr) * 1983-05-25 1988-12-14 Sumitomo Special Metals Co., Ltd. Procédé de fabrication d'un aimant permanant

Also Published As

Publication number Publication date
EP0338597B1 (fr) 1995-01-11
EP0338597A2 (fr) 1989-10-25

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