ATE50377T1 - Seltene erden-eisen-bor-dauermagnete. - Google Patents

Seltene erden-eisen-bor-dauermagnete.

Info

Publication number
ATE50377T1
ATE50377T1 AT85109641T AT85109641T ATE50377T1 AT E50377 T1 ATE50377 T1 AT E50377T1 AT 85109641 T AT85109641 T AT 85109641T AT 85109641 T AT85109641 T AT 85109641T AT E50377 T1 ATE50377 T1 AT E50377T1
Authority
AT
Austria
Prior art keywords
rare earth
permanent magnets
iron boron
earth iron
boron permanent
Prior art date
Application number
AT85109641T
Other languages
English (en)
Inventor
Mohammad H Ghandehari
Original Assignee
Union Oil 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 Union Oil Co filed Critical Union Oil Co
Application granted granted Critical
Publication of ATE50377T1 publication Critical patent/ATE50377T1/de

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)
  • Powder Metallurgy (AREA)
AT85109641T 1985-06-14 1985-07-31 Seltene erden-eisen-bor-dauermagnete. ATE50377T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/745,293 US4762574A (en) 1985-06-14 1985-06-14 Rare earth-iron-boron premanent magnets
EP85109641A EP0208807B1 (de) 1985-06-14 1985-07-31 Seltene Erden-Eisen-Bor-Dauermagnete

Publications (1)

Publication Number Publication Date
ATE50377T1 true ATE50377T1 (de) 1990-02-15

Family

ID=24996080

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85109641T ATE50377T1 (de) 1985-06-14 1985-07-31 Seltene erden-eisen-bor-dauermagnete.

Country Status (5)

Country Link
US (1) US4762574A (de)
EP (1) EP0208807B1 (de)
JP (1) JPS61289605A (de)
AT (1) ATE50377T1 (de)
DE (1) DE3576014D1 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952252A (en) * 1985-06-14 1990-08-28 Union Oil Company Of California Rare earth-iron-boron-permanent magnets
US4878958A (en) * 1986-05-30 1989-11-07 Union Oil Company Of California Method for preparing rare earth-iron-boron permanent magnets
AU609669B2 (en) * 1986-10-13 1991-05-02 N.V. Philips Gloeilampenfabrieken Method of manufacturing a permanent magnet
DE3811655C2 (de) * 1987-04-07 1994-06-23 Hitachi Metals Ltd Zylindrischer Permanentmagnet, seine Verwendung in einem Motor und Verfahren zu seiner Herstellung
US4834812A (en) * 1987-11-02 1989-05-30 Union Oil Company Of California Method for producing polymer-bonded magnets from rare earth-iron-boron compositions
DE3740157A1 (de) * 1987-11-26 1989-06-08 Max Planck Gesellschaft Sintermagnet auf basis von fe-nd-b
JPH01175705A (ja) * 1987-12-29 1989-07-12 Daido Steel Co Ltd 希土類磁石の製造方法
WO1989012113A1 (fr) * 1988-06-03 1989-12-14 Mitsubishi Metal Corporation AIMANT FRITTE A BASE D'UN ALLIAGE DE B-Fe-ELEMENTS DE TERRES RARES ET PROCEDE DE PRODUCTION
AT393177B (de) * 1989-04-28 1991-08-26 Boehler Gmbh Permanentmagnet(-werkstoff) sowie verfahren zur herstellung desselben
US5122203A (en) * 1989-06-13 1992-06-16 Sps Technologies, Inc. Magnetic materials
US5114502A (en) * 1989-06-13 1992-05-19 Sps Technologies, Inc. Magnetic materials and process for producing the same
US5244510A (en) * 1989-06-13 1993-09-14 Yakov Bogatin Magnetic materials and process for producing the same
US5266128A (en) * 1989-06-13 1993-11-30 Sps Technologies, Inc. Magnetic materials and process for producing the same
AT393178B (de) * 1989-10-25 1991-08-26 Boehler Gmbh Permanentmagnet(-werkstoff) sowie verfahren zur herstellung desselben
CN1044940C (zh) * 1992-08-13 1999-09-01 Ybm麦格奈克斯公司 基于钕铁硼的生产永久磁铁的方法
FR2743456B1 (fr) * 1996-01-04 1998-02-06 Thomson Csf Moteur electrique de type synchrone a aimants permanents et vehicule comportant un tel moteur
CN1111879C (zh) * 1997-02-06 2003-06-18 住友特殊金属株式会社 具有微晶结构的薄片磁体的制造方法
CN1111880C (zh) * 1997-02-14 2003-06-18 住友特殊金属株式会社 具有微晶结构的薄片磁体
RU2118007C1 (ru) * 1997-05-28 1998-08-20 Товарищество с ограниченной ответственностью "Диполь-М" Материал для постоянных магнитов
JP2004031781A (ja) * 2002-06-27 2004-01-29 Nissan Motor Co Ltd 希土類磁石およびその製造方法、ならびに希土類磁石を用いてなるモータ
JP4374962B2 (ja) * 2003-03-28 2009-12-02 日産自動車株式会社 希土類磁石およびその製造方法、ならびに希土類磁石を用いてなるモータ
US20060207689A1 (en) * 2003-10-31 2006-09-21 Makoto Iwasaki Method for producing sintered rare earth element magnet
JP4525072B2 (ja) * 2003-12-22 2010-08-18 日産自動車株式会社 希土類磁石およびその製造方法
EP1675133B1 (de) * 2004-12-27 2013-03-27 Shin-Etsu Chemical Co., Ltd. Nd-Fe-B Seltenerd-Magnetmaterial
JP5417632B2 (ja) * 2008-03-18 2014-02-19 日東電工株式会社 永久磁石及び永久磁石の製造方法
JP4872109B2 (ja) * 2008-03-18 2012-02-08 日東電工株式会社 永久磁石及び永久磁石の製造方法
JP5261747B2 (ja) * 2008-04-15 2013-08-14 日東電工株式会社 永久磁石及び永久磁石の製造方法
JP5515539B2 (ja) * 2009-09-09 2014-06-11 日産自動車株式会社 磁石成形体およびその製造方法
EP2503567B1 (de) * 2010-03-31 2014-07-02 Nitto Denko Corporation Verfahren zur herstellung eines permanentmagneten
US9147524B2 (en) 2011-08-30 2015-09-29 General Electric Company High resistivity magnetic materials
KR102045400B1 (ko) * 2018-04-30 2019-11-15 성림첨단산업(주) 희토류 영구자석의 제조방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826696A (en) * 1971-08-16 1974-07-30 Gen Electric Rare earth intermetallic compounds containing calcium
US3928089A (en) * 1973-04-19 1975-12-23 Gen Electric Rare earth intermetallic compounds produced by a reduction-diffusion process
US3887395A (en) * 1974-01-07 1975-06-03 Gen Electric Cobalt-rare earth magnets comprising sintered products bonded with cobalt-rare earth bonding agents
US4135953A (en) * 1975-09-23 1979-01-23 Bbc Brown, Boveri & Company, Limited Permanent magnet and method of making it
US4402770A (en) * 1981-10-23 1983-09-06 The United States Of America As Represented By The Secretary Of The Navy Hard magnetic alloys of a transition metal and lanthanide
US4374665A (en) * 1981-10-23 1983-02-22 The United States Of America As Represented By The Secretary Of The Navy Magnetostrictive devices
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
CA1315571C (en) * 1982-08-21 1993-04-06 Masato Sagawa Magnetic materials and permanent magnets
EP0153744B1 (de) * 1984-02-28 1990-01-03 Sumitomo Special Metals Co., Ltd. Verfahren zur Herstellung von permanenten Magneten
US4541877A (en) * 1984-09-25 1985-09-17 North Carolina State University Method of producing high performance permanent magnets

Also Published As

Publication number Publication date
EP0208807A1 (de) 1987-01-21
JPS61289605A (ja) 1986-12-19
DE3576014D1 (de) 1990-03-15
EP0208807B1 (de) 1990-02-07
US4762574A (en) 1988-08-09

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties