EP0372948A3 - Composition pour aimant permanent - Google Patents

Composition pour aimant permanent Download PDF

Info

Publication number
EP0372948A3
EP0372948A3 EP19890312748 EP89312748A EP0372948A3 EP 0372948 A3 EP0372948 A3 EP 0372948A3 EP 19890312748 EP19890312748 EP 19890312748 EP 89312748 A EP89312748 A EP 89312748A EP 0372948 A3 EP0372948 A3 EP 0372948A3
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
magnet composition
bismath
zince
oomposition
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
EP19890312748
Other languages
German (de)
English (en)
Other versions
EP0372948B1 (fr
EP0372948A2 (fr
Inventor
Takaaki Yasumura
Teruo Kiyomiya
Yasutoshi Mizuno
Kazuo Matsui
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.)
FDK Corp
Original Assignee
FDK 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 FDK Corp filed Critical FDK Corp
Publication of EP0372948A2 publication Critical patent/EP0372948A2/fr
Publication of EP0372948A3 publication Critical patent/EP0372948A3/fr
Application granted granted Critical
Publication of EP0372948B1 publication Critical patent/EP0372948B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
EP19890312748 1988-12-08 1989-12-07 Composition pour aimant permanent Expired - Lifetime EP0372948B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63308720A JPH02156051A (ja) 1988-12-08 1988-12-08 永久磁石材料
JP308720/88 1988-12-08

Publications (3)

Publication Number Publication Date
EP0372948A2 EP0372948A2 (fr) 1990-06-13
EP0372948A3 true EP0372948A3 (fr) 1991-05-29
EP0372948B1 EP0372948B1 (fr) 1994-06-29

Family

ID=17984471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890312748 Expired - Lifetime EP0372948B1 (fr) 1988-12-08 1989-12-07 Composition pour aimant permanent

Country Status (3)

Country Link
EP (1) EP0372948B1 (fr)
JP (1) JPH02156051A (fr)
DE (1) DE68916522T2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035700C (zh) * 1992-07-07 1997-08-20 上海跃龙有色金属有限公司 稀土磁性合金粉末制造方法及其产品
JP5558447B2 (ja) * 2011-09-29 2014-07-23 株式会社東芝 永久磁石とそれを用いたモータおよび発電機
DE102012110629A1 (de) 2012-11-06 2014-05-08 Rainer Geschwandtner Eindeckbare Sicherungsvorrichtung für Steildächer
JP6125687B2 (ja) * 2016-03-18 2017-05-10 株式会社東芝 モータ、発電機、および自動車
JP6462754B2 (ja) * 2017-04-04 2019-01-30 株式会社東芝 永久磁石、モータ、発電機、および車

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497672A (en) * 1982-04-06 1985-02-05 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a rare earth-cobalt based permanent magnet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812331B2 (ja) * 1974-10-25 1983-03-08 セイコーエプソン株式会社 金属間化合物磁石
JPS55128502A (en) * 1979-03-23 1980-10-04 Tdk Corp Permanent magnet material and its manufacture
JPS6033287B2 (ja) * 1979-09-21 1985-08-02 セイコーエプソン株式会社 粉末永久磁石の磁場中成形法
JPS56116862A (en) * 1980-02-15 1981-09-12 Seiko Instr & Electronics Ltd Manufacture of rare earth element magnet
JPS58186906A (ja) * 1982-04-26 1983-11-01 Toshiba Corp 永久磁石の製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497672A (en) * 1982-04-06 1985-02-05 Shin-Etsu Chemical Co., Ltd. Method for the preparation of a rare earth-cobalt based permanent magnet

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 93, no. 11, December 1980 Columbus, Ohio, USA S.Seikosha Co.: "Permanent magnet material" page 681; column 1; ref. no. 214498N *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 103 (E-64)(775) 3 July 1981, & JP-A-56 46508 (SUWA SEIKOSHA K.K.) 27 April 1981, *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 25 (E-225)(1462) 2 February 1984, & JP-A-58 186906 (TOKYO SHIBAURA DENKI K.K.) 1 November 1983, *

Also Published As

Publication number Publication date
DE68916522D1 (de) 1994-08-04
JPH02156051A (ja) 1990-06-15
DE68916522T2 (de) 1994-10-13
JPH0524219B2 (fr) 1993-04-07
EP0372948B1 (fr) 1994-06-29
EP0372948A2 (fr) 1990-06-13

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