ATE555485T1 - Verfahren zur herstellung eines permanentmagneten - Google Patents

Verfahren zur herstellung eines permanentmagneten

Info

Publication number
ATE555485T1
ATE555485T1 AT02715875T AT02715875T ATE555485T1 AT E555485 T1 ATE555485 T1 AT E555485T1 AT 02715875 T AT02715875 T AT 02715875T AT 02715875 T AT02715875 T AT 02715875T AT E555485 T1 ATE555485 T1 AT E555485T1
Authority
AT
Austria
Prior art keywords
permanent magnet
powder
group
phase
element selected
Prior art date
Application number
AT02715875T
Other languages
English (en)
Inventor
Takao Sekino
Yuji Kaneko
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 ATE555485T1 publication Critical patent/ATE555485T1/de

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
    • H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • 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
    • 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)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
AT02715875T 2001-01-30 2002-01-22 Verfahren zur herstellung eines permanentmagneten ATE555485T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001021226 2001-01-30
PCT/JP2002/000442 WO2002061769A1 (fr) 2001-01-30 2002-01-22 Procede de preparation d'un aimant permanent

Publications (1)

Publication Number Publication Date
ATE555485T1 true ATE555485T1 (de) 2012-05-15

Family

ID=18886820

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02715875T ATE555485T1 (de) 2001-01-30 2002-01-22 Verfahren zur herstellung eines permanentmagneten

Country Status (6)

Country Link
US (1) US7244318B2 (de)
EP (1) EP1365422B1 (de)
JP (1) JP3765793B2 (de)
CN (1) CN1246864C (de)
AT (1) ATE555485T1 (de)
WO (1) WO2002061769A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1645648B1 (de) * 2001-03-30 2007-07-25 Neomax Co., Ltd. Seltenerdlegierungs sinterformteil
WO2002099823A1 (en) * 2001-05-30 2002-12-12 Sumitomo Special Metals Co., Ltd. Method of making sintered compact for rare earth magnet
JP4547840B2 (ja) * 2001-07-27 2010-09-22 Ｔｄｋ株式会社 永久磁石およびその製造方法
JP2005011973A (ja) * 2003-06-18 2005-01-13 Japan Science & Technology Agency 希土類−鉄−ホウ素系磁石及びその製造方法
EP1860668B1 (de) * 2005-03-14 2015-01-14 TDK Corporation R-t-b-basierter, gesinterter magnet
CN101517670B (zh) * 2006-09-15 2012-11-07 因太金属株式会社 NdFeB烧结磁铁的制造方法
EP1988183A4 (de) * 2007-02-05 2012-01-25 Showa Denko Kk R-t-b legierung, herstellungsverfahren dafür, feines pulver für einen permanenten r-t-b-seltenerdmagneten, und permanenter r-t-b-seltenerdmagnet
JP4900085B2 (ja) * 2007-06-29 2012-03-21 Ｔｄｋ株式会社 希土類磁石の製造方法
JP4900113B2 (ja) * 2007-07-24 2012-03-21 Ｔｄｋ株式会社 希土類永久焼結磁石の製造方法
EP2178096B1 (de) * 2007-07-27 2015-12-23 Hitachi Metals, Ltd. Gesinterter r-fe-b-seltenerdmagnet
ES2536189T3 (es) * 2007-09-04 2015-05-21 Hitachi Metals, Ltd. Imán anisotrópico sinterizado de R-Fe-B
JP5328161B2 (ja) * 2008-01-11 2013-10-30 インターメタリックス株式会社 ＮｄＦｅＢ焼結磁石の製造方法及びＮｄＦｅＢ焼結磁石
JP5417632B2 (ja) 2008-03-18 2014-02-19 日東電工株式会社 永久磁石及び永久磁石の製造方法
JP4835758B2 (ja) * 2009-03-30 2011-12-14 Ｔｄｋ株式会社 希土類磁石の製造方法
JP5057111B2 (ja) * 2009-07-01 2012-10-24 信越化学工業株式会社 希土類磁石の製造方法
JP2011210823A (ja) * 2010-03-29 2011-10-20 Tdk Corp 希土類焼結磁石の製造方法及び希土類焼結磁石
WO2011122638A1 (ja) * 2010-03-30 2011-10-06 Tdk株式会社 焼結磁石、モーター、自動車、及び焼結磁石の製造方法
WO2011125594A1 (ja) * 2010-03-31 2011-10-13 日東電工株式会社 永久磁石及び永久磁石の製造方法
MY165562A (en) 2011-05-02 2018-04-05 Shinetsu Chemical Co Rare earth permanent magnets and their preparation
JP6256140B2 (ja) * 2013-04-22 2018-01-10 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP6361089B2 (ja) 2013-04-22 2018-07-25 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
CN105723480B (zh) 2013-06-17 2018-07-17 城市矿业科技有限责任公司 磁铁再生以产生磁性性能改善或恢复的Nd-Fe-B磁铁
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
US10984929B2 (en) 2015-03-25 2021-04-20 Tdk Corporation Rare earth magnet
CN115083708B (zh) * 2021-03-10 2025-12-23 福建省金龙稀土股份有限公司 一种钕铁硼磁体及其制备方法
CN119542022A (zh) * 2025-01-23 2025-02-28 浙江鑫盛永磁科技股份有限公司 一种低涡流损耗永磁材料

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369075A (en) * 1979-04-18 1983-01-18 Namiki Precision Jewel Co., Ltd. Method of manufacturing permanent magnet alloys
JPH07105289B2 (ja) 1986-03-06 1995-11-13 信越化学工業株式会社 希土類永久磁石の製造方法
US4849035A (en) * 1987-08-11 1989-07-18 Crucible Materials Corporation Rare earth, iron carbon permanent magnet alloys and method for producing the same
US5405455A (en) * 1991-06-04 1995-04-11 Shin-Etsu Chemical Co. Ltd. Rare earth-based permanent magnet
US5387291A (en) * 1992-03-19 1995-02-07 Sumitomo Special Metals Co., Ltd. Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor
DE69314098T2 (de) * 1992-06-24 1998-03-12 Sumitomo Spec Metals Verfahren zur Herstellung von R-Fe-B-Typ Sintermagneten durch Injektionsformen
JPH0696928A (ja) 1992-06-30 1994-04-08 Aichi Steel Works Ltd 希土類焼結磁石及びその製造方法
JP3157661B2 (ja) * 1993-09-06 2001-04-16 住友特殊金属株式会社 Ｒ−Ｆｅ−Ｂ系永久磁石材料の製造方法
DE69431096T2 (de) * 1993-11-02 2003-01-23 Tdk Corp., Tokio/Tokyo Herstellung eines Dauermagneten
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
JPH07245206A (ja) * 1994-03-04 1995-09-19 Tokin Corp 希土類永久磁石用粉末及びその製造方法
JPH09283312A (ja) * 1996-04-15 1997-10-31 Seiko Epson Corp ボンド磁石

Also Published As

Publication number Publication date
JP3765793B2 (ja) 2006-04-12
WO2002061769A1 (fr) 2002-08-08
US7244318B2 (en) 2007-07-17
EP1365422A1 (de) 2003-11-26
CN1246864C (zh) 2006-03-22
JPWO2002061769A1 (ja) 2004-06-03
EP1365422A4 (de) 2008-12-31
CN1489771A (zh) 2004-04-14
US20040050454A1 (en) 2004-03-18
EP1365422B1 (de) 2012-04-25

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