DE69219753D1 - Seltenerd-Eisen-Bor Legierungspulver für Dauermagneten - Google Patents

Seltenerd-Eisen-Bor Legierungspulver für Dauermagneten

Info

Publication number
DE69219753D1
DE69219753D1 DE69219753T DE69219753T DE69219753D1 DE 69219753 D1 DE69219753 D1 DE 69219753D1 DE 69219753 T DE69219753 T DE 69219753T DE 69219753 T DE69219753 T DE 69219753T DE 69219753 D1 DE69219753 D1 DE 69219753D1
Authority
DE
Germany
Prior art keywords
phase
atomic
rare earth
partially
alloy powder
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
DE69219753T
Other languages
English (en)
Other versions
DE69219753T2 (de
Inventor
Atsushi Hamamura
Katsumi Okayama
Yuji Kaneko
Yasuhiro Okajima
Kaname Takeya
Shuji Okada
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.)
Sumitomo Metal Mining Co Ltd
Neomax Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Sumitomo Special Metals Co Ltd
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 Sumitomo Metal Mining Co Ltd, Sumitomo Special Metals Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Publication of DE69219753D1 publication Critical patent/DE69219753D1/de
Application granted granted Critical
Publication of DE69219753T2 publication Critical patent/DE69219753T2/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
    • H01F1/0573—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
    • 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

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)
DE69219753T 1992-01-29 1992-02-28 Seltenerd-Eisen-Bor Legierungspulver für Dauermagneten Expired - Fee Related DE69219753T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4040137A JP2782024B2 (ja) 1992-01-29 1992-01-29 Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法

Publications (2)

Publication Number Publication Date
DE69219753D1 true DE69219753D1 (de) 1997-06-19
DE69219753T2 DE69219753T2 (de) 1997-11-27

Family

ID=12572403

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69219753T Expired - Fee Related DE69219753T2 (de) 1992-01-29 1992-02-28 Seltenerd-Eisen-Bor Legierungspulver für Dauermagneten

Country Status (5)

Country Link
US (1) US5281250A (de)
EP (1) EP0553527B1 (de)
JP (1) JP2782024B2 (de)
AT (1) ATE153170T1 (de)
DE (1) DE69219753T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3932143B2 (ja) * 1992-02-21 2007-06-20 Ｔｄｋ株式会社 磁石の製造方法
EP0633581B1 (de) * 1993-07-06 1998-04-22 Sumitomo Special Metals Company Limited R-Fe-B Dauermagnetmaterialien und ihre Herstellungsverfahren
DE69434323T2 (de) * 1993-11-02 2006-03-09 Tdk Corp. Preparation d'un aimant permanent
US5647886A (en) * 1993-11-11 1997-07-15 Seiko Epson Corporation Magnetic powder, permanent magnet produced therefrom and process for producing them
US6139765A (en) * 1993-11-11 2000-10-31 Seiko Epson Corporation Magnetic powder, permanent magnet produced therefrom and process for producing them
US5907105A (en) * 1997-07-21 1999-05-25 General Motors Corporation Magnetostrictive torque sensor utilizing RFe2 -based composite materials
US6332933B1 (en) 1997-10-22 2001-12-25 Santoku Corporation Iron-rare earth-boron-refractory metal magnetic nanocomposites
US6159308A (en) * 1997-12-12 2000-12-12 Hitachi Metals, Ltd. Rare earth permanent magnet and production method thereof
CA2336011A1 (en) 1998-07-13 2000-01-20 Santoku America, Inc. High performance iron-rare earth-boron-refractory-cobalt nanocomposites
US6120620A (en) * 1999-02-12 2000-09-19 General Electric Company Praseodymium-rich iron-boron-rare earth composition, permanent magnet produced therefrom, and method of making
US6377049B1 (en) 1999-02-12 2002-04-23 General Electric Company Residuum rare earth magnet
CN1187152C (zh) 1999-03-03 2005-02-02 株式会社新王磁材 稀土磁铁烧结用烧结箱及用该箱烧结处理的稀土磁铁制法
US6696015B2 (en) 1999-03-03 2004-02-24 Sumitomo Special Metals Co., Ltd. Method for producing rare-earth magnet
KR100517642B1 (ko) * 2002-10-25 2005-09-29 한국과학기술연구원 Ｐｒ－Ｆｅ－Ｂ계 자성분말 조성물 및 그 제조방법
AU2003291539A1 (en) * 2002-11-18 2004-06-15 Iowa State University Research Foundation, Inc. Permanent magnet alloy with improved high temperature performance
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
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
JP2014026221A (ja) * 2012-07-30 2014-02-06 Canon Chemicals Inc 電子写真用磁気シール部材および電子写真用カートリッジ
WO2014205002A2 (en) 2013-06-17 2014-12-24 Miha Zakotnik Magnet recycling to create nd-fe-b magnets with improved or restored magnetic performance
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59219404A (ja) * 1983-05-27 1984-12-10 Sumitomo Special Metals Co Ltd 希土類・鉄・ボロン系永久磁石用合金粉末の製造方法
JPS6181603A (ja) * 1984-09-04 1986-04-25 Tohoku Metal Ind Ltd 希土類磁石の製造方法
EP0261579B1 (de) * 1986-09-16 1993-01-07 Tokin Corporation Verfahren zur Herstellung eines Seltenerd-Eisen-Bor-Dauermagneten mit Hilfe eines abgeschreckten Legierungspuders
JPS63127504A (ja) * 1986-11-17 1988-05-31 Taiyo Yuden Co Ltd 磁石及びその製造方法
US4975213A (en) * 1988-01-19 1990-12-04 Kabushiki Kaisha Toshiba Resin-bonded rare earth-iron-boron magnet
US4968347A (en) * 1988-11-22 1990-11-06 The United States Of America As Represented By The United States Department Of Energy High energy product permanent magnet having improved intrinsic coercivity and method of making same
JPH02288305A (ja) * 1989-04-28 1990-11-28 Nippon Steel Corp 希土類磁石及びその製造方法
JPH0371601A (ja) * 1989-08-10 1991-03-27 Nippon Steel Corp 希土類磁石の製造方法
JP2675430B2 (ja) * 1989-10-12 1997-11-12 川崎製鉄株式会社 耐蝕性希土類―遷移金属系磁石およびその製造方法

Also Published As

Publication number Publication date
EP0553527B1 (de) 1997-05-14
US5281250A (en) 1994-01-25
JP2782024B2 (ja) 1998-07-30
EP0553527A1 (de) 1993-08-04
DE69219753T2 (de) 1997-11-27
JPH05205925A (ja) 1993-08-13
ATE153170T1 (de) 1997-05-15

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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