DE68914078T2 - Dauermagnet und Herstellungsverfahren. - Google Patents

Dauermagnet und Herstellungsverfahren.

Info

Publication number
DE68914078T2
DE68914078T2 DE68914078T DE68914078T DE68914078T2 DE 68914078 T2 DE68914078 T2 DE 68914078T2 DE 68914078 T DE68914078 T DE 68914078T DE 68914078 T DE68914078 T DE 68914078T DE 68914078 T2 DE68914078 T2 DE 68914078T2
Authority
DE
Germany
Prior art keywords
compound
permanent magnet
manufacturing process
phase
minority phase
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
DE68914078T
Other languages
English (en)
Other versions
DE68914078D1 (de
Inventor
Masato Sagawa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE68914078D1 publication Critical patent/DE68914078D1/de
Publication of DE68914078T2 publication Critical patent/DE68914078T2/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
    • H01F1/0577—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)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
DE68914078T 1988-10-06 1989-10-03 Dauermagnet und Herstellungsverfahren. Expired - Fee Related DE68914078T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63250851A JP2787580B2 (ja) 1988-10-06 1988-10-06 熱処理性がすぐれたＮｄ−Ｆｅ−Ｂ系焼結磁石

Publications (2)

Publication Number Publication Date
DE68914078D1 DE68914078D1 (de) 1994-04-28
DE68914078T2 true DE68914078T2 (de) 1994-06-30

Family

ID=17213949

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914078T Expired - Fee Related DE68914078T2 (de) 1988-10-06 1989-10-03 Dauermagnet und Herstellungsverfahren.

Country Status (8)

Country Link
US (1) US4995905A (de)
EP (1) EP0362805B1 (de)
JP (1) JP2787580B2 (de)
AT (1) ATE103412T1 (de)
DE (1) DE68914078T2 (de)
ES (1) ES2050750T3 (de)
FI (1) FI103223B (de)
IE (1) IE891829L (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167914A (en) * 1986-08-04 1992-12-01 Sumitomo Special Metals Co., Ltd. Rare earth magnet having excellent corrosion resistance
US5201963A (en) * 1989-10-26 1993-04-13 Nippon Steel Corporation Rare earth magnets and method of producing same
CA2031127C (en) * 1989-12-01 1999-01-19 Satoshi Hirosawa Permanent magnet
US5093076A (en) * 1991-05-15 1992-03-03 General Motors Corporation Hot pressed magnets in open air presses
FR2707421B1 (fr) * 1993-07-07 1995-08-11 Ugimag Sa Poudre additive pour la fabrication d'aimants frittés type Fe-Nd-B, méthode de fabrication et aimants correspondants.
US5482575A (en) * 1992-12-08 1996-01-09 Ugimag Sa Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof
US6277211B1 (en) * 1999-09-30 2001-08-21 Magnequench Inc. Cu additions to Nd-Fe-B alloys to reduce oxygen content in the ingot and rapidly solidified ribbon
US6527874B2 (en) 2000-07-10 2003-03-04 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for making same
US7570142B2 (en) 2003-02-27 2009-08-04 Hitachi Metals, Ltd. Permanent magnet for particle beam accelerator and magnetic field generator
US9551052B2 (en) 2005-07-15 2017-01-24 Hitachi Metals, Ltd. Rare earth sintered magnet and method for production thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
JPS59163804A (ja) * 1983-03-08 1984-09-14 Sumitomo Special Metals Co Ltd 永久磁石用合金
US4684406A (en) * 1983-05-21 1987-08-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
JPS59218704A (ja) * 1983-05-27 1984-12-10 Sumitomo Special Metals Co Ltd 永久磁石材料の製造方法
JPS6032306A (ja) * 1983-08-02 1985-02-19 Sumitomo Special Metals Co Ltd 永久磁石
JPS60218457A (ja) * 1984-04-12 1985-11-01 Seiko Epson Corp 永久磁石合金
US4767450A (en) * 1984-11-27 1988-08-30 Sumitomo Special Metals Co., Ltd. Process for producing the rare earth alloy powders
JPS62120003A (ja) * 1985-11-20 1987-06-01 Sumitomo Special Metals Co Ltd 耐食性のすぐれた永久磁石及びその製造方法
US4765848A (en) * 1984-12-31 1988-08-23 Kaneo Mohri Permanent magnent and method for producing same
JPS62165305A (ja) * 1986-01-16 1987-07-21 Hitachi Metals Ltd 熱安定性良好な永久磁石およびその製造方法
JPS62244105A (ja) * 1986-04-16 1987-10-24 Hitachi Metals Ltd 希土類磁石
JPS636808A (ja) * 1986-06-26 1988-01-12 Shin Etsu Chem Co Ltd 希土類永久磁石
JPS6328844A (ja) * 1986-07-23 1988-02-06 Toshiba Corp 永久磁石材料
EP0261579B1 (de) * 1986-09-16 1993-01-07 Tokin Corporation Verfahren zur Herstellung eines Seltenerd-Eisen-Bor-Dauermagneten mit Hilfe eines abgeschreckten Legierungspuders
EP0302947B1 (de) * 1987-03-02 1994-06-08 Seiko Epson Corporation Seltene-erden-eisen-typ-dauermagnet und sein herstellungsverfahren

Also Published As

Publication number Publication date
FI103223B1 (fi) 1999-05-14
ES2050750T3 (es) 1994-06-01
EP0362805A3 (de) 1991-07-24
JP2787580B2 (ja) 1998-08-20
FI103223B (fi) 1999-05-14
IE891829L (en) 1990-04-06
DE68914078D1 (de) 1994-04-28
FI893600A (fi) 1990-04-07
EP0362805B1 (de) 1994-03-23
JPH02101146A (ja) 1990-04-12
US4995905A (en) 1991-02-26
FI893600A0 (fi) 1989-07-27
EP0362805A2 (de) 1990-04-11
ATE103412T1 (de) 1994-04-15

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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