DE69009335D1 - Seltenerdpulver für Dauermagnet, Herstellungsverfahren und Verbundmagnet. - Google Patents

Seltenerdpulver für Dauermagnet, Herstellungsverfahren und Verbundmagnet.

Info

Publication number
DE69009335D1
DE69009335D1 DE69009335T DE69009335T DE69009335D1 DE 69009335 D1 DE69009335 D1 DE 69009335D1 DE 69009335 T DE69009335 T DE 69009335T DE 69009335 T DE69009335 T DE 69009335T DE 69009335 D1 DE69009335 D1 DE 69009335D1
Authority
DE
Germany
Prior art keywords
manufacturing process
rare earth
magnet
earth powder
permanent magnet
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
DE69009335T
Other languages
English (en)
Other versions
DE69009335T2 (de
Inventor
Ryoji Nakayama
Takuo Takeshita
Tamotsu Ogawa
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.)
Diamet Corp
Original Assignee
Mitsubishi Materials 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
Priority claimed from JP1284293A external-priority patent/JPH03146608A/ja
Priority claimed from JP2122651A external-priority patent/JPH0417604A/ja
Priority claimed from JP2184779A external-priority patent/JP2576671B2/ja
Priority claimed from JP2185951A external-priority patent/JP2576672B2/ja
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Publication of DE69009335D1 publication Critical patent/DE69009335D1/de
Application granted granted Critical
Publication of DE69009335T2 publication Critical patent/DE69009335T2/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
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/023—Hydrogen absorption
    • 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
    • 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)
  • Hard Magnetic Materials (AREA)
DE69009335T 1989-07-31 1990-07-31 Seltenerdpulver für Dauermagnet, Herstellungsverfahren und Verbundmagnet. Expired - Fee Related DE69009335T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP19883789 1989-07-31
JP19883689 1989-07-31
JP1284293A JPH03146608A (ja) 1989-10-31 1989-10-31 磁気的異方性に優れた希土類磁石合金粉末の製造法
JP2122651A JPH0417604A (ja) 1990-05-11 1990-05-11 磁気特性に優れた希土類磁石合金粉末の製造法
JP2184779A JP2576671B2 (ja) 1989-07-31 1990-07-12 磁気的異方性および耐食性に優れた希土類ーＦｅーＢ系永久磁石粉末およびボンド磁石
JP2185951A JP2576672B2 (ja) 1989-07-31 1990-07-13 磁気的異方性および耐食性に優れた希土類ーＦｅーＣｏーＢ系永久磁石粉末およびボンド磁石

Publications (2)

Publication Number Publication Date
DE69009335D1 true DE69009335D1 (de) 1994-07-07
DE69009335T2 DE69009335T2 (de) 1994-11-03

Family

ID=27552618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69009335T Expired - Fee Related DE69009335T2 (de) 1989-07-31 1990-07-31 Seltenerdpulver für Dauermagnet, Herstellungsverfahren und Verbundmagnet.

Country Status (3)

Country Link
US (2) US5228930A (de)
EP (1) EP0411571B1 (de)
DE (1) DE69009335T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5250206A (en) * 1990-09-26 1993-10-05 Mitsubishi Materials Corporation Rare earth element-Fe-B or rare earth element-Fe-Co-B permanent magnet powder excellent in magnetic anisotropy and corrosion resistivity and bonded magnet manufactured therefrom
US5395462A (en) * 1991-01-28 1995-03-07 Mitsubishi Materials Corporation Anisotropic rare earth-Fe-B system and rare earth-Fe-Co-B system magnet
JPH05163510A (ja) * 1991-12-10 1993-06-29 Mitsubishi Materials Corp 希土類磁石合金粉末の製造法
JPH06151137A (ja) * 1992-11-13 1994-05-31 Mitsubishi Materials Corp 異方性に優れた希土類磁石材料粉末
WO1994015345A1 (en) * 1992-12-28 1994-07-07 Aichi Steel Works, Ltd. Rare earth magnetic powder, method of its manufacture, and resin-bonded magnet
US5454998A (en) * 1994-02-04 1995-10-03 Ybm Technologies, Inc. Method for producing permanent magnet
US5851312A (en) * 1996-02-26 1998-12-22 Aichi Steel Works, Ltd. Production method, production apparatus and heat treatment apparatus for anisotropic magnet powder
JP2881409B2 (ja) * 1996-10-28 1999-04-12 愛知製鋼株式会社 異方性磁石粉末の製造方法
US6864250B1 (en) * 1997-08-22 2005-03-08 Kaken Pharmaceutical Co., Ltd. N-acylated lipophilic amino acid derivatives
US6332933B1 (en) 1997-10-22 2001-12-25 Santoku Corporation Iron-rare earth-boron-refractory metal magnetic nanocomposites
JP3120172B2 (ja) * 1997-12-22 2000-12-25 愛知製鋼株式会社 希土類系磁石粉末の製造装置
CN1265401C (zh) 1998-07-13 2006-07-19 株式会社三德 制造纳米复合磁性材料的方法以及制造粘结磁体的方法
US6261515B1 (en) 1999-03-01 2001-07-17 Guangzhi Ren Method for producing rare earth magnet having high magnetic properties
DE10134909B4 (de) * 2000-07-18 2008-07-17 Kabushiki Kaisha Toshiba Kältespeichermaterial, Verfahren zu dessen Herstellung und die Verwendung des Materials in einem Kühlapparat
DE60118623T2 (de) * 2000-08-31 2007-05-03 Showa Denko K.K. Schleudergussverfahren und schleudergussvorrichtung
US7018485B2 (en) * 2001-06-29 2006-03-28 Neomax Co., Ltd. Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus
US6955729B2 (en) * 2002-04-09 2005-10-18 Aichi Steel Corporation Alloy for bonded magnets, isotropic magnet powder and anisotropic magnet powder and their production method, and bonded magnet
DE10255604B4 (de) * 2002-11-28 2006-06-14 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen eines anisotropen Magnetpulvers und eines gebundenen anisotropen Magneten daraus
WO2005015580A1 (ja) * 2003-08-12 2005-02-17 Neomax Co., Ltd. Ｒ－ｔ－ｂ系焼結磁石および希土類合金
US7632360B2 (en) 2003-08-27 2009-12-15 Nissan Motor Co., Ltd. Rare earth magnet powder and method of producing the same
EP1744328B1 (de) * 2005-06-10 2012-07-25 Nissan Motor Co., Ltd. Seltenerdmagnet mit hoher Festigkeit und mit grossem elektrischem Widerstand
EP1970916B1 (de) * 2006-05-18 2015-04-01 Hitachi Metals, Ltd. R-fe-b poröser magnet und herstellungsverfahren dafür
JP4924615B2 (ja) 2006-11-30 2012-04-25 日立金属株式会社 Ｒ−Ｆｅ−Ｂ系微細結晶高密度磁石およびその製造方法
JPWO2009119758A1 (ja) 2008-03-28 2011-07-28 株式会社日本触媒 吸水性樹脂粉体の輸送方法
US8821650B2 (en) * 2009-08-04 2014-09-02 The Boeing Company Mechanical improvement of rare earth permanent magnets
CN102110507B (zh) * 2010-12-16 2012-10-17 麦格昆磁（天津）有限公司 一种超细颗粒的钕铁硼磁粉
CN103805825B (zh) * 2012-11-08 2016-04-06 沈阳中北真空科技有限公司 稀土永磁合金真空感应熔炼速凝设备
BR112015031725A2 (pt) 2013-06-17 2017-07-25 Urban Mining Tech Company Llc método para fabricação de um imã permanente de nd-fe-b reciclado
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2303697C2 (de) * 1973-01-26 1974-07-18 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von Legierungspulvern aus Seltenen Erden und Kobalt
GB1554384A (en) * 1977-04-15 1979-10-17 Magnetic Polymers Ltd Rare earth metal alloy magnets
JPH0732092B2 (ja) * 1985-12-05 1995-04-10 三菱マテリアル株式会社 酸素および炭素含有量の低い磁気特性にすぐれたＮｄ―Ｆｅ―Ｂ系焼結合金磁石の製造法
EP0248981B1 (de) * 1986-06-12 1993-07-07 Kabushiki Kaisha Toshiba Dauermagnet und Dauermagnetlegierung
US4983232A (en) * 1987-01-06 1991-01-08 Hitachi Metals, Ltd. Anisotropic magnetic powder and magnet thereof and method of producing same
EP0304054B1 (de) * 1987-08-19 1994-06-08 Mitsubishi Materials Corporation Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren
JP2564492B2 (ja) * 1987-10-13 1996-12-18 三菱マテリアル株式会社 希土類−Ｆｅ−Ｂ系鋳造体永久磁石の製造法

Also Published As

Publication number Publication date
EP0411571B1 (de) 1994-06-01
DE69009335T2 (de) 1994-11-03
US5338371A (en) 1994-08-16
EP0411571A2 (de) 1991-02-06
US5228930A (en) 1993-07-20
EP0411571A3 (en) 1991-04-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUBISHI MATERIALS PMG CORP., NIIGATA, JP

8328 Change in the person/name/address of the agent

Representative=s name: MAIWALD PATENTANWALTS GMBH, 40221 DUESSELDORF

8328 Change in the person/name/address of the agent

Representative=s name: MICHALSKI HUETTERMANN & PARTNER PATENTANWAELTE, 40

8339 Ceased/non-payment of the annual fee