DE69009800D1 - Verfahren zur Herstellung von ferromagnetischem Pulver aus Seltenerd-Übergangsmetall-Bor durch Niederschlag. - Google Patents

Verfahren zur Herstellung von ferromagnetischem Pulver aus Seltenerd-Übergangsmetall-Bor durch Niederschlag.

Info

Publication number
DE69009800D1
DE69009800D1 DE69009800T DE69009800T DE69009800D1 DE 69009800 D1 DE69009800 D1 DE 69009800D1 DE 69009800 T DE69009800 T DE 69009800T DE 69009800 T DE69009800 T DE 69009800T DE 69009800 D1 DE69009800 D1 DE 69009800D1
Authority
DE
Germany
Prior art keywords
precipitation
transition metal
rare earth
ferromagnetic powder
earth transition
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
DE69009800T
Other languages
English (en)
Other versions
DE69009800T2 (de
Inventor
Shinji Watanabe
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Application granted granted Critical
Publication of DE69009800D1 publication Critical patent/DE69009800D1/de
Publication of DE69009800T2 publication Critical patent/DE69009800T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
DE69009800T 1989-03-07 1990-03-07 Verfahren zur Herstellung von ferromagnetischem Pulver aus Seltenerd-Übergangsmetall-Bor durch Niederschlag. Expired - Fee Related DE69009800T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1054497A JPH0327502A (ja) 1989-03-07 1989-03-07 希土類磁石微粉末の作製法

Publications (2)

Publication Number Publication Date
DE69009800D1 true DE69009800D1 (de) 1994-07-21
DE69009800T2 DE69009800T2 (de) 1994-10-06

Family

ID=12972272

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69009800T Expired - Fee Related DE69009800T2 (de) 1989-03-07 1990-03-07 Verfahren zur Herstellung von ferromagnetischem Pulver aus Seltenerd-Übergangsmetall-Bor durch Niederschlag.

Country Status (4)

Country Link
US (1) US5062888A (de)
EP (1) EP0386747B1 (de)
JP (1) JPH0327502A (de)
DE (1) DE69009800T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07272913A (ja) * 1994-03-30 1995-10-20 Kawasaki Teitoku Kk 永久磁石原料、その製造法及び永久磁石
CN1044648C (zh) * 1997-05-22 1999-08-11 南开大学 共沉淀还原扩散法制备钕铁硼永磁合金
JP3634730B2 (ja) * 2000-09-18 2005-03-30 三洋電機株式会社 色調補正回路および色相補正回路
WO2003088280A1 (en) * 2002-04-08 2003-10-23 Council Of Scientific And Industrial Research Process for the production of neodymium-iron-boron permanent magnet alloy powder
US7048809B2 (en) * 2003-01-21 2006-05-23 Metglas, Inc. Magnetic implement having a linear BH loop

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663318A (en) * 1970-10-05 1972-05-16 Du Pont Process for making ferromagnetic metal powders
JPS5269807A (en) * 1975-12-08 1977-06-10 Tdk Corp Recovering of powder of ferromagnetic metal or alloy
US4394160A (en) * 1979-12-03 1983-07-19 Sperry Corporation Making magnetic powders
US4715890A (en) * 1986-10-17 1987-12-29 Ovonic Synthetic Materials Company, Inc. Method of preparing a magnetic material
ES2009404A6 (es) * 1988-11-24 1989-09-16 Quintela Manuel Arturo Lopez Procedimiento para a obtencion de particulas magneticas ultrafinas de nd-fe-b de diferentes tamanos.

Also Published As

Publication number Publication date
EP0386747B1 (de) 1994-06-15
EP0386747A3 (de) 1991-09-04
JPH0327502A (ja) 1991-02-05
DE69009800T2 (de) 1994-10-06
EP0386747A2 (de) 1990-09-12
US5062888A (en) 1991-11-05

Similar Documents

Publication Publication Date Title
DE3783413D1 (de) Verfahren zur herstellung eines seltenerd-eisen-bor-dauermagneten mit hilfe eines abgeschreckten legierungspuders.
DE69218846D1 (de) Verfahren und Vorrichtung zur Herstellung von Pulver, insbesondere Metallpulver durch Atomisierung
DE69102325T2 (de) Verfahren und Vorrichtung zur Herstellung dreidimensionaler Gegenstände durch Phototransformation.
DE69002398T2 (de) Verfahren zur Herstellung eines Pulvers durch Zerstäuben mit Gas.
DE69128073D1 (de) Verfahren zur herstellung von metalloxidaerogelen mit dichte weniger als 0,02 g/cm3
DE69210563T2 (de) Verfahren zur Herstellung von magnetischem Pulver aus Seltenerdmetalle
DE69117870T2 (de) Durch Sintern von Pulver hergestellter Schnellarbeitsstahl und Verfahren zu seiner Herstellung
DE69307346D1 (de) Verfahren zur herstellung von metallnitridpulvern
DE69223247D1 (de) Verfahren zur herstellung von kristallinem pulver aus metalloxidgemischen
DE69002096D1 (de) Verfahren zur herstellung von feinen pulvern aus aluminiumnitrid.
DE68921422T2 (de) Verfahren zur Herstellung eines polaren anisotropen Magnetes aus seltenen Erden.
DE69211864T2 (de) Verfahren zur Herstellung von feinen Typ-II-Ammoniumpolyphosphatteilchen
DE3481359D1 (de) Verfahren und vorrichtung zur herstellung von feinem magnetischem pulver.
DE3867896D1 (de) Verfahren zur herstellung von ultrafeinem metallpulver.
DE69218906T2 (de) Verfahren zur Herstellung einer Legierung mit Ti Carbid enthaltenden Hartstoffteilchen
DE69105022T2 (de) Verfahren zur Erzeugung eines Seltenerd-Eisen-Bor Magneten.
DE3874911D1 (de) Verfahren zur herstellung von gegenstaenden aus pulverigem material durch isostatisches pressen.
DE69009800T2 (de) Verfahren zur Herstellung von ferromagnetischem Pulver aus Seltenerd-Übergangsmetall-Bor durch Niederschlag.
DE69002710D1 (de) Verfahren zur herstellung von beuteln durch weben.
DE69106421D1 (de) Verfahren und Vorrichtung zur Herstellung von Metallpulver.
DE69015134D1 (de) Verfahren zur Herstellung von geformten Gegenständen aus sinterfähigem Pulver.
DE69400596T2 (de) Verfahren zur Herstellung eines Seltene-Erden-Oxyd-Pulvers
DE69008104D1 (de) Verfahren zur Herstellung eines Gegenstandes aus Keramikpulver.
DE69108883D1 (de) Verfahren zur herstellung eines pulvers aus dotiertem zinkoxid und so erhaltenes pulver.
DE3583047D1 (de) Verfahren zur herstellung von ferromagnetischem metallpulver.

Legal Events

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