ATE492023T1 - R-fe-b gesinterter permanentmagnet und verfahren zu dessen herstellung - Google Patents

R-fe-b gesinterter permanentmagnet und verfahren zu dessen herstellung

Info

Publication number
ATE492023T1
ATE492023T1 AT03022684T AT03022684T ATE492023T1 AT E492023 T1 ATE492023 T1 AT E492023T1 AT 03022684 T AT03022684 T AT 03022684T AT 03022684 T AT03022684 T AT 03022684T AT E492023 T1 ATE492023 T1 AT E492023T1
Authority
AT
Austria
Prior art keywords
mass
slurry
permanent magnet
green body
sintered permanent
Prior art date
Application number
AT03022684T
Other languages
English (en)
Inventor
Nobuhiko Fujimori
Kazuhiro Sonoda
Takashi Tsukada
Junji Matsushima
Yasushi Kimura
Satoru Kikuchi
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
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of ATE492023T1 publication Critical patent/ATE492023T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
AT03022684T 2002-10-08 2003-10-07 R-fe-b gesinterter permanentmagnet und verfahren zu dessen herstellung ATE492023T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002294431 2002-10-08
JP2002362391 2002-12-13

Publications (1)

Publication Number Publication Date
ATE492023T1 true ATE492023T1 (de) 2011-01-15

Family

ID=32032945

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03022684T ATE492023T1 (de) 2002-10-08 2003-10-07 R-fe-b gesinterter permanentmagnet und verfahren zu dessen herstellung

Country Status (4)

Country Link
US (2) US20050067058A1 (de)
EP (1) EP1408518B1 (de)
AT (1) ATE492023T1 (de)
DE (1) DE60335331D1 (de)

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WO2004046409A2 (en) * 2002-11-18 2004-06-03 Iowa State University Research Foundation, Inc. Permanent magnet alloy with improved high temperature performance
EP1712652A4 (de) * 2004-06-22 2010-10-13 Shinetsu Chemical Co Auf r-fe-b basierendes seltenerdpermanentmagnetmaterial
US7858023B2 (en) * 2004-06-30 2010-12-28 Tdk Corporation Method for producing raw material powder for rare earth sintered magnet, method for producing rare earth sintered magnet, granule and sintered body
US20060165550A1 (en) 2005-01-25 2006-07-27 Tdk Corporation Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereof
CN101572146B (zh) * 2008-05-04 2012-01-25 比亚迪股份有限公司 一种钕铁硼永磁材料及其制备方法
CN101853723B (zh) 2009-03-31 2012-11-21 比亚迪股份有限公司 一种复合磁性材料及其制备方法
US20110298571A1 (en) * 2010-06-04 2011-12-08 Irena Skulj Rare earth magnetic materials comprising gallium and methods of making the same
JP5572673B2 (ja) * 2011-07-08 2014-08-13 昭和電工株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石用合金、ｒ−ｔ−ｂ系希土類焼結磁石用合金の製造方法、ｒ−ｔ−ｂ系希土類焼結磁石用合金材料、ｒ−ｔ−ｂ系希土類焼結磁石、ｒ−ｔ−ｂ系希土類焼結磁石の製造方法およびモーター
SG11201404222PA (en) 2012-08-31 2014-10-30 Jx Nippon Mining & Metals Corp Fe-BASED MAGNETIC MATERIAL SINTERED BODY
CN103093921B (zh) * 2013-01-29 2016-08-24 烟台首钢磁性材料股份有限公司 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置
CN103377820B (zh) 2013-07-17 2015-11-25 烟台首钢磁性材料股份有限公司 一种r-t-b-m系烧结磁体及其制造方法
DE112014003694B4 (de) 2013-08-09 2023-06-29 Tdk Corporation R-T-B-basierter gesinterter Magnet und Rotationsmaschine
CN109065313A (zh) * 2014-03-27 2018-12-21 日立金属株式会社 R－t－b系合金粉末及其制造方法、以及r－t－b系烧结磁铁及其制造方法
US10388440B2 (en) * 2015-11-13 2019-08-20 Tdk Corporation R-T-B based sintered magnet
JP2018182161A (ja) * 2017-04-18 2018-11-15 Tdk株式会社 磁石、磁石構造体、及び、回転角度検出器
JP7247687B2 (ja) * 2019-03-19 2023-03-29 Tdk株式会社 Ｒ‐ｔ‐ｂ系永久磁石
US11705778B2 (en) * 2019-12-19 2023-07-18 Black & Decker Inc. Power tool with compact motor assembly

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BE662987A (de) * 1964-04-24
JPS59163803A (ja) 1983-03-08 1984-09-14 Sumitomo Special Metals Co Ltd 永久磁石用合金
US5466308A (en) * 1982-08-21 1995-11-14 Sumitomo Special Metals Co. Ltd. Magnetic precursor materials for making permanent magnets
US5194098A (en) * 1982-08-21 1993-03-16 Sumitomo Special Metals Co., Ltd. Magnetic materials
CA1215223A (en) * 1983-07-04 1986-12-16 Tokuji Abe Composition for plastic magnets
JPS6027105A (ja) 1983-07-25 1985-02-12 Sumitomo Special Metals Co Ltd 希土類・鉄・ボロン系永久磁石用合金粉末
JPS6142102A (ja) 1984-08-01 1986-02-28 Daido Steel Co Ltd 永久磁石材料
JPS62165305A (ja) * 1986-01-16 1987-07-21 Hitachi Metals Ltd 熱安定性良好な永久磁石およびその製造方法
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EP0378698B1 (de) * 1988-06-21 1993-12-15 Matsushita Electric Industrial Co., Ltd. Verfahren zur herstellung eines dauermagnetes
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JP3151265B2 (ja) 1991-12-26 2001-04-03 信越化学工業株式会社 希土類永久磁石の製造方法
JP2859517B2 (ja) * 1993-08-12 1999-02-17 日立金属株式会社 希土類磁石の製造方法
JPH09275004A (ja) * 1995-07-07 1997-10-21 Daido Steel Co Ltd 永久磁石とその製造方法
JP3171426B2 (ja) 1995-07-12 2001-05-28 日立金属株式会社 焼結型永久磁石
JPH0928409A (ja) 1995-07-24 1997-02-04 Sanji Kumai 靴 底
JP3116885B2 (ja) * 1998-01-27 2000-12-11 日立金属株式会社 希土類永久磁石の製造方法及び希土類永久磁石
DE69905439T2 (de) * 1998-11-04 2003-07-24 Matsushita Electric Industrial Co., Ltd. Verfahren zur Zersetzung und Behandlung eines Verbundmagnets
JP2001210508A (ja) * 1999-07-05 2001-08-03 Hitachi Metals Ltd アークセグメント磁石、リング磁石及び希土類焼結磁石の製造方法
DE19945943B4 (de) * 1999-09-24 2005-06-02 Vacuumschmelze Gmbh Borarme Nd-Fe-B-Legierung und Verfahren zu deren Herstellung
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JPWO2002103719A1 (ja) * 2001-06-19 2004-10-07 三菱電機株式会社 希土類永久磁石材料
JP4162884B2 (ja) * 2001-11-20 2008-10-08 信越化学工業株式会社 耐食性希土類磁石

Also Published As

Publication number Publication date
US7645349B2 (en) 2010-01-12
EP1408518B1 (de) 2010-12-15
DE60335331D1 (de) 2011-01-27
US20050067058A1 (en) 2005-03-31
US20080017277A1 (en) 2008-01-24
EP1408518A3 (de) 2006-01-11
EP1408518A2 (de) 2004-04-14

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