DE69221245T2 - Verfahren zur herstellung eines permanentmagnetes aus seltenen erden - Google Patents

Verfahren zur herstellung eines permanentmagnetes aus seltenen erden

Info

Publication number
DE69221245T2
DE69221245T2 DE69221245T DE69221245T DE69221245T2 DE 69221245 T2 DE69221245 T2 DE 69221245T2 DE 69221245 T DE69221245 T DE 69221245T DE 69221245 T DE69221245 T DE 69221245T DE 69221245 T2 DE69221245 T2 DE 69221245T2
Authority
DE
Germany
Prior art keywords
producing
permanent magnet
rare earth
rare
earth
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 - Fee Related
Application number
DE69221245T
Other languages
English (en)
Other versions
DE69221245D1 (de
Inventor
Fumio Takagi
Osamu Kobayashi
Akira Arai
Seiji Ihara
Koji Akioka
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of DE69221245D1 publication Critical patent/DE69221245D1/de
Application granted granted Critical
Publication of DE69221245T2 publication Critical patent/DE69221245T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01F1/057—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
    • H01F1/0576—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 pressed, e.g. hot working
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • H01F41/028—Radial anisotropy

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
DE69221245T 1991-04-25 1992-04-22 Verfahren zur herstellung eines permanentmagnetes aus seltenen erden Expired - Fee Related DE69221245T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP9569291 1991-04-25
JP3661492 1992-02-24
JP3661692 1992-02-24
JP3661592 1992-02-24
JP3774192 1992-02-25
PCT/JP1992/000521 WO1992020081A1 (en) 1991-04-25 1992-04-22 Method of producing a rare earth permanent magnet

Publications (2)

Publication Number Publication Date
DE69221245D1 DE69221245D1 (de) 1997-09-04
DE69221245T2 true DE69221245T2 (de) 1997-12-11

Family

ID=27521809

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69221245T Expired - Fee Related DE69221245T2 (de) 1991-04-25 1992-04-22 Verfahren zur herstellung eines permanentmagnetes aus seltenen erden

Country Status (5)

Country Link
US (1) US5352302A (de)
EP (1) EP0536421B1 (de)
JP (1) JP3084748B2 (de)
DE (1) DE69221245T2 (de)
WO (1) WO1992020081A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10328618B4 (de) * 2003-06-20 2008-04-24 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Verfahren und Vorrichtung zur schmelzmetallurgischen Herstellung von Magnetlegierungen auf Nd-Fe-B-Basis
WO2019170593A1 (de) * 2018-03-07 2019-09-12 Technische Universität Darmstadt Verfahren zur herstellung eines permanentmagnets oder eines hartmagnetischen materials
DE102016220654B4 (de) 2015-10-30 2023-09-28 GM Global Technology Operations LLC Verfahren zur herstellung eines nicht-planaren magneten

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538565A (en) * 1985-08-13 1996-07-23 Seiko Epson Corporation Rare earth cast alloy permanent magnets and methods of preparation
JPH0534142U (ja) * 1991-10-07 1993-05-07 住友ベークライト株式会社 包装袋
FR2779267B1 (fr) * 1998-05-28 2000-08-11 Rhodia Chimie Sa Procede de preparation d'un materiau magnetique par forgeage et materiau magnetique sous forme de poudre
JP3997413B2 (ja) * 2002-11-14 2007-10-24 信越化学工業株式会社 Ｒ−Ｆｅ−Ｂ系焼結磁石及びその製造方法
EP2195815B1 (de) * 2007-10-04 2016-12-07 Hussmann Corporation Permanentmagneteinrichtung
US8209988B2 (en) * 2008-09-24 2012-07-03 Husssmann Corporation Magnetic refrigeration device
WO2014010418A1 (ja) * 2012-07-12 2014-01-16 日産自動車株式会社 焼結磁石の製造方法
US10665387B2 (en) 2016-05-10 2020-05-26 GM Global Technology Operations LLC Method of fabrication of a curvilinear magnet
JP7155971B2 (ja) * 2018-12-05 2022-10-19 大同特殊鋼株式会社 円弧状永久磁石およびその製造方法
CN110828089B (zh) * 2019-11-21 2021-03-26 厦门钨业股份有限公司 钕铁硼磁体材料、原料组合物及制备方法和应用
CN110942878B (zh) * 2019-12-24 2021-03-26 厦门钨业股份有限公司 一种r-t-b系永磁材料及其制备方法和应用

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609328B2 (ja) * 1977-03-30 1985-03-09 日立金属株式会社 装飾用永久磁石
JPS609328A (ja) * 1983-06-29 1985-01-18 株式会社日立製作所 断線検出故障区間標定方式
US4710239A (en) * 1984-09-14 1987-12-01 General Motors Corporation Hot pressed permanent magnet having high and low coercivity regions
WO1988006797A1 (en) * 1987-03-02 1988-09-07 Seiko Epson Corporation Rare earth element-iron base permanent magnet and process for its production
CA1269029A (en) * 1986-01-29 1990-05-15 Peter Vernia Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy
GB2206241B (en) * 1987-06-18 1990-08-15 Seiko Epson Corp Method of making a permanent magnet
US4780226A (en) * 1987-08-03 1988-10-25 General Motors Corporation Lubrication for hot working rare earth-transition metal alloys
JPH01175207A (ja) * 1987-12-28 1989-07-11 Seiko Epson Corp 永久磁石の製造方法
JPH01270210A (ja) * 1988-04-21 1989-10-27 Hitachi Metals Ltd アーク状永久磁石及びその製造方法
JP2631514B2 (ja) * 1988-06-27 1997-07-16 セイコーエプソン株式会社 永久磁石の製造方法
JP2893705B2 (ja) * 1989-03-25 1999-05-24 セイコーエプソン株式会社 永久磁石の製造方法
JPH02297910A (ja) * 1989-05-12 1990-12-10 Fuji Elelctrochem Co Ltd ラジアル配向磁石の製造方法
JPH04134806A (ja) * 1990-09-27 1992-05-08 Seiko Epson Corp 永久磁石の製造方法
JPH04187722A (ja) * 1990-11-20 1992-07-06 Seiko Epson Corp 永久磁石の製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10328618B4 (de) * 2003-06-20 2008-04-24 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Verfahren und Vorrichtung zur schmelzmetallurgischen Herstellung von Magnetlegierungen auf Nd-Fe-B-Basis
DE102016220654B4 (de) 2015-10-30 2023-09-28 GM Global Technology Operations LLC Verfahren zur herstellung eines nicht-planaren magneten
WO2019170593A1 (de) * 2018-03-07 2019-09-12 Technische Universität Darmstadt Verfahren zur herstellung eines permanentmagnets oder eines hartmagnetischen materials

Also Published As

Publication number Publication date
WO1992020081A1 (en) 1992-11-12
DE69221245D1 (de) 1997-09-04
US5352302A (en) 1994-10-04
EP0536421A1 (de) 1993-04-14
EP0536421B1 (de) 1997-07-30
JP3084748B2 (ja) 2000-09-04
EP0536421A4 (de) 1994-01-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee