HK1000642A1 - Rare earth permanent magnet and method for producing the same - Google Patents

Rare earth permanent magnet and method for producing the same

Info

Publication number
HK1000642A1
HK1000642A1 HK97102142D HK97102142D HK1000642A1 HK 1000642 A1 HK1000642 A1 HK 1000642A1 HK 97102142 D HK97102142 D HK 97102142D HK 97102142 D HK97102142 D HK 97102142D HK 1000642 A1 HK1000642 A1 HK 1000642A1
Authority
HK
Hong Kong
Prior art keywords
producing
same
permanent magnet
rare earth
earth permanent
Prior art date
Application number
HK97102142D
Other languages
English (en)
Inventor
Kimio Uchida
Masahiro Takahashi
Fumitake Tanahashi
Original Assignee
Hitachi Metals 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
Priority claimed from JP17595295A external-priority patent/JP3171426B2/ja
Priority claimed from JP8090400A external-priority patent/JP2966342B2/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of HK1000642A1 publication Critical patent/HK1000642A1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • 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
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • 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
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
HK97102142D 1995-07-12 1997-11-10 Rare earth permanent magnet and method for producing the same HK1000642A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17595295A JP3171426B2 (ja) 1995-07-12 1995-07-12 焼結型永久磁石
JP8090400A JP2966342B2 (ja) 1996-03-19 1996-03-19 焼結型永久磁石

Publications (1)

Publication Number Publication Date
HK1000642A1 true HK1000642A1 (en) 2004-10-29

Family

ID=26431884

Family Applications (1)

Application Number Title Priority Date Filing Date
HK97102142D HK1000642A1 (en) 1995-07-12 1997-11-10 Rare earth permanent magnet and method for producing the same

Country Status (5)

Country Link
US (3) US5858123A (xx)
EP (1) EP0753867B1 (xx)
CN (2) CN1148761C (xx)
DE (1) DE69622798T2 (xx)
HK (1) HK1000642A1 (xx)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010022276A (ko) * 1998-05-26 2001-03-15 마쯔노고오지 질화형 희토류 자석재료 및 이를 이용한 희토류 본드 자석
US6302939B1 (en) * 1999-02-01 2001-10-16 Magnequench International, Inc. Rare earth permanent magnet and method for making same
US6261515B1 (en) * 1999-03-01 2001-07-17 Guangzhi Ren Method for producing rare earth magnet having high magnetic properties
DE19945943B4 (de) * 1999-09-24 2005-06-02 Vacuumschmelze Gmbh Borarme Nd-Fe-B-Legierung und Verfahren zu deren Herstellung
DE19945942C2 (de) * 1999-09-24 2003-07-17 Vacuumschmelze Gmbh Verfahren zur Herstellung von Dauermagneten aus einer borarmen Nd-Fe-B-Legierung
US6482353B1 (en) * 1999-11-12 2002-11-19 Sumitomo Special Metals Co., Ltd. Method for manufacturing rare earth magnet
US6454993B1 (en) 2000-01-11 2002-09-24 Delphi Technologies, Inc. Manufacturing technique for multi-layered structure with magnet using an extrusion process
DE60131699T2 (de) * 2000-06-13 2008-11-20 Shin-Etsu Chemical Co., Ltd. Dauermagnetmaterialien auf R-Fe-B-Basis
US6527874B2 (en) * 2000-07-10 2003-03-04 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for making same
JP3294841B2 (ja) * 2000-09-19 2002-06-24 住友特殊金属株式会社 希土類磁石およびその製造方法
US6648984B2 (en) * 2000-09-28 2003-11-18 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for manufacturing the same
ATE404982T1 (de) * 2001-02-07 2008-08-15 Hitachi Metals Ltd Verfahren zur herstellung einer metalllegierung für einen seltenerdmagneten auf eisenbasis
ATE335280T1 (de) * 2001-11-22 2006-08-15 Neomax Co Ltd Nanozusammensetzungsmagnet
JP4389427B2 (ja) * 2002-02-05 2009-12-24 日立金属株式会社 希土類−鉄−硼素系磁石用合金粉末を用いた焼結磁石
US6994755B2 (en) * 2002-04-29 2006-02-07 University Of Dayton Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets
US20040025974A1 (en) * 2002-05-24 2004-02-12 Don Lee Nanocrystalline and nanocomposite rare earth permanent magnet materials and method of making the same
US7255751B2 (en) * 2002-09-30 2007-08-14 Tdk Corporation Method for manufacturing R-T-B system rare earth permanent magnet
JP4076179B2 (ja) * 2002-09-30 2008-04-16 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系希土類永久磁石の製造方法
AU2003291539A1 (en) * 2002-11-18 2004-06-15 Iowa State University Research Foundation, Inc. Permanent magnet alloy with improved high temperature performance
WO2004081954A1 (ja) * 2003-03-12 2004-09-23 Neomax Co., Ltd. Ｒ－ｔ－ｂ系焼結磁石およびその製造方法
US7199690B2 (en) * 2003-03-27 2007-04-03 Tdk Corporation R-T-B system rare earth permanent magnet
US7255752B2 (en) * 2003-03-28 2007-08-14 Tdk Corporation Method for manufacturing R-T-B system rare earth permanent magnet
EP2518742B1 (en) * 2003-06-27 2016-11-30 TDK Corporation R-T-B system permanent magnet
US7534311B2 (en) * 2003-08-12 2009-05-19 Hitachi Metals, Ltd. R-t-b sintered magnet and rare earth alloy
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
US20060054245A1 (en) * 2003-12-31 2006-03-16 Shiqiang Liu Nanocomposite permanent magnets
CN1934283B (zh) * 2004-06-22 2011-07-27 信越化学工业株式会社 R-Fe-B基稀土永磁体材料
WO2006003872A1 (ja) * 2004-06-30 2006-01-12 Tdk Corporation 希土類焼結磁石用原料粉体の製造方法、希土類焼結磁石の製造方法、顆粒及び焼結体
WO2006004998A2 (en) * 2004-06-30 2006-01-12 University Of Dayton Anisotropic nanocomposite rare earth permanent magnets and method of making
US8012269B2 (en) * 2004-12-27 2011-09-06 Shin-Etsu Chemical Co., Ltd. Nd-Fe-B rare earth permanent magnet material
CN100334657C (zh) * 2005-05-18 2007-08-29 西北有色金属研究院 一种耐热R－Fe－B系永磁材料及其制备方法
US20070089806A1 (en) * 2005-10-21 2007-04-26 Rolf Blank Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same
US7955443B2 (en) * 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
JP4656323B2 (ja) * 2006-04-14 2011-03-23 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4840606B2 (ja) * 2006-11-17 2011-12-21 信越化学工業株式会社 希土類永久磁石の製造方法
JP5363314B2 (ja) * 2007-05-01 2013-12-11 インターメタリックス株式会社 ＮｄＦｅＢ系焼結磁石製造方法
CN101981634B (zh) * 2008-03-31 2013-06-12 日立金属株式会社 R-t-b系烧结磁体及其制造方法
CN101615462B (zh) * 2009-05-26 2011-08-17 安徽大地熊新材料股份有限公司 含有微量氮RE-Fe-B系永磁材料的制备方法
EP2503571B1 (en) * 2010-03-31 2015-05-06 Nitto Denko Corporation Manufacturing method for permanent magnet
CN101958171B (zh) * 2010-04-14 2012-02-15 无锡南理工科技发展有限公司 一种耐腐蚀烧结钕铁硼磁体的制备方法
US20110298571A1 (en) * 2010-06-04 2011-12-08 Irena Skulj Rare earth magnetic materials comprising gallium and methods of making the same
JP5767788B2 (ja) * 2010-06-29 2015-08-19 昭和電工株式会社 Ｒ−ｔ−ｂ系希土類永久磁石、モーター、自動車、発電機、風力発電装置
JP5163839B2 (ja) * 2011-01-31 2013-03-13 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
CN102290182B (zh) * 2011-04-29 2013-07-17 天津天和磁材技术有限公司 低氧含量高性能烧结钕铁硼材料及其制造方法
CN103547395B (zh) * 2011-05-12 2015-09-02 中央电气工业株式会社 合金片制造装置及使用其的稀土类磁铁原料用合金片的制造方法
JP6119548B2 (ja) * 2012-10-17 2017-04-26 信越化学工業株式会社 希土類焼結磁石の製造方法
JP6255977B2 (ja) * 2013-03-28 2018-01-10 Tdk株式会社 希土類磁石
EP3790029A1 (en) 2013-06-17 2021-03-10 Urban Mining Technology Company, LLC Magnet recycling to create nd-fe-b magnets with improved or restored magnetic performance
WO2015002280A1 (ja) * 2013-07-03 2015-01-08 Tdk株式会社 Ｒ－ｔ－ｂ系焼結磁石
DE112014003694B4 (de) * 2013-08-09 2023-06-29 Tdk Corporation R-T-B-basierter gesinterter Magnet und Rotationsmaschine
JP6274215B2 (ja) * 2013-08-09 2018-02-07 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石、および、モータ
US9634549B2 (en) * 2013-10-31 2017-04-25 General Electric Company Dual phase magnetic material component and method of forming
US10229777B2 (en) * 2013-10-31 2019-03-12 General Electric Company Graded magnetic component and method of forming
US10229776B2 (en) * 2013-10-31 2019-03-12 General Electric Company Multi-phase magnetic component and method of forming
JP6481682B2 (ja) * 2014-03-27 2019-03-13 日立金属株式会社 Ｒ−ｔ−ｂ系合金粉末の製造方法およびｒ−ｔ−ｂ系焼結磁石の製造方法
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
CN104439256A (zh) * 2014-11-24 2015-03-25 湖南航天磁电有限责任公司 一种烧结钕铁硼氧化毛坯的回收再利用方法
US10784028B2 (en) 2016-02-26 2020-09-22 Tdk Corporation R-T-B based permanent magnet
JP2017157625A (ja) 2016-02-29 2017-09-07 Tdk株式会社 希土類焼結磁石
JP2018153008A (ja) * 2017-03-13 2018-09-27 Tdk株式会社 モータ
JP7336649B2 (ja) * 2019-10-18 2023-09-01 住友金属鉱山株式会社 ニッケル粉スラリーの製造方法
EP4060689A4 (en) * 2019-11-11 2023-12-06 Shin-Etsu Chemical Co., Ltd. SINTERED R-FE-B MAGNET
JP7226281B2 (ja) * 2019-12-03 2023-02-21 信越化学工業株式会社 希土類焼結磁石
CN114867572A (zh) * 2019-12-26 2022-08-05 日立金属株式会社 R-t-b系烧结磁体的制造方法和r-t-b系烧结磁体
US11661646B2 (en) 2021-04-21 2023-05-30 General Electric Comapny Dual phase magnetic material component and method of its formation
US11926880B2 (en) 2021-04-21 2024-03-12 General Electric Company Fabrication method for a component having magnetic and non-magnetic dual phases

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533408A (en) * 1981-10-23 1985-08-06 Koon Norman C Preparation of hard magnetic alloys of a transition metal and lanthanide
US5174362A (en) * 1982-09-03 1992-12-29 General Motors Corporation High-energy product rare earth-iron magnet alloys
JPH0660367B2 (ja) * 1986-01-29 1994-08-10 大同特殊鋼株式会社 永久磁石材料の製造方法
JPH01139738A (ja) * 1987-11-27 1989-06-01 Hitachi Metals Ltd 磁気異方性磁石材料の製造方法及びその装置
US4990307A (en) * 1988-03-22 1991-02-05 Crucible Materials Corporation Method for producing particles for the production of permanent magnets
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same
JPH04107903A (ja) * 1990-08-29 1992-04-09 Sumitomo Metal Mining Co Ltd 焼結磁石用希土類―鉄―ホウ素系合金粉末
US5405455A (en) * 1991-06-04 1995-04-11 Shin-Etsu Chemical Co. Ltd. Rare earth-based permanent magnet
JP3932143B2 (ja) * 1992-02-21 2007-06-20 Ｔｄｋ株式会社 磁石の製造方法
US5314548A (en) * 1992-06-22 1994-05-24 General Motors Corporation Fine grained anisotropic powder from melt-spun ribbons
JP2731337B2 (ja) * 1993-03-19 1998-03-25 日立金属株式会社 希土類焼結磁石の製造方法
US5489343A (en) * 1993-01-29 1996-02-06 Hitachi Metals, Ltd. Method for producing R-Fe-B-based, sintered magnet
EP0633581B1 (en) * 1993-07-06 1998-04-22 Sumitomo Special Metals Company Limited R-Fe-B permanent magnet materials and process of producing the same

Also Published As

Publication number Publication date
DE69622798D1 (de) 2002-09-12
CN1224063C (zh) 2005-10-19
EP0753867B1 (en) 2002-08-07
US5997804A (en) 1999-12-07
CN1148761C (zh) 2004-05-05
US5858123A (en) 1999-01-12
EP0753867A1 (en) 1997-01-15
US6080245A (en) 2000-06-27
CN1495815A (zh) 2004-05-12
CN1157992A (zh) 1997-08-27
DE69622798T2 (de) 2003-05-15

Similar Documents

Publication Publication Date Title
HK1000642A1 (en) Rare earth permanent magnet and method for producing the same
AU1082395A (en) Rare earth element-metal-hydrogen-boron permanent magnet and method of production
EP0778594A4 (en) MANUFACTURING PROCESS FOR RARE-EARTH Sintered MAGNETS
IL118520A0 (en) System and method for controlling permanent magnet motors
EP0529148A3 (en) Permanent magnet material and method for making
EP0712198A4 (en) PERMANENT MAGNET RUNNER AND HIS PRODUCTION METHOD
EP0411571A3 (en) Rare earth permanent magnet powder, method for producing same and bonded magnet
GB2319262B (en) Permanent magnet array apparatus and method
EP0815471A4 (en) PERMANENT MAGNET OPEN STRUCTURE HIGHLY UNIFORM FIELD GENERATOR
EP0964411A4 (en) FERRITE MAGNET AND PROCESS FOR PRODUCING THE SAME
GB9321785D0 (en) Permanent magnet rotor
EP0548952A3 (en) Magnet roll and method for producing the same
EP0991085A4 (en) CORROSION RESISTANT PERMANENT MAGNET AND MANUFACTURING METHOD THEREOF
DE69619460T2 (de) Seltenerd-Verbundmagnet und Zusammensetzung dafür
GB0008382D0 (en) Magnetic display panel and method for producing the same
EP0811994A4 (en) PERMANENT MAGNET FOR ULTRA-HIGH-VACUUM APPLICATION AND PRODUCTION OF THE SAME
GB2315266B (en) Magnet and method for manufacturing a magnet
EP0921533A4 (en) PROCESS FOR FORMING PERMANENT MAGNETS
EP0599647A3 (en) Rare earth-iron-nitrogen system permanent magnet and process for producing the same.
EP0693633A3 (en) Permanent magnet brake with electromagnetic control
GB9511086D0 (en) Superconductive magnet assembly
GB9211124D0 (en) Permanent magnet motor
GB2318587B (en) Anisotropic magnet powders and their production method
GB9302496D0 (en) Permanent magnet rotor
IL108517A0 (en) Permanent magnet

Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20160523