DE602004009979D1 - R-T-B-Seltenerd-Permanentmagnet - Google Patents

R-T-B-Seltenerd-Permanentmagnet

Info

Publication number
DE602004009979D1
DE602004009979D1 DE602004009979T DE602004009979T DE602004009979D1 DE 602004009979 D1 DE602004009979 D1 DE 602004009979D1 DE 602004009979 T DE602004009979 T DE 602004009979T DE 602004009979 T DE602004009979 T DE 602004009979T DE 602004009979 D1 DE602004009979 D1 DE 602004009979D1
Authority
DE
Germany
Prior art keywords
permanent magnet
rare earth
earth permanent
rare
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 - Lifetime
Application number
DE602004009979T
Other languages
English (en)
Other versions
DE602004009979T2 (de
Inventor
Tetsuya Hidaka
Kazuya Sakamoto
Kazuo Sato
Hironari 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.)
TDK Corp
Original Assignee
TDK 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 JP2003088195A external-priority patent/JP3762912B2/ja
Priority claimed from JP2004003435A external-priority patent/JP3728316B2/ja
Application filed by TDK Corp filed Critical TDK Corp
Publication of DE602004009979D1 publication Critical patent/DE602004009979D1/de
Application granted granted Critical
Publication of DE602004009979T2 publication Critical patent/DE602004009979T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F1/0575—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
DE602004009979T 2003-03-27 2004-03-26 R-T-B-Seltenerd-Permanentmagnet Expired - Lifetime DE602004009979T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003088195 2003-03-27
JP2003088195A JP3762912B2 (ja) 2003-03-27 2003-03-27 Ｒ−ｔ−ｂ系希土類永久磁石
JP2004003435 2004-01-08
JP2004003435A JP3728316B2 (ja) 2004-01-08 2004-01-08 Ｒ−ｔ−ｂ系希土類永久磁石

Publications (2)

Publication Number Publication Date
DE602004009979D1 true DE602004009979D1 (de) 2007-12-27
DE602004009979T2 DE602004009979T2 (de) 2008-09-18

Family

ID=32829056

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004009979T Expired - Lifetime DE602004009979T2 (de) 2003-03-27 2004-03-26 R-T-B-Seltenerd-Permanentmagnet

Country Status (5)

Country Link
US (1) US7199690B2 (de)
EP (3) EP1462531B1 (de)
CN (1) CN1277277C (de)
DE (1) DE602004009979T2 (de)
HK (1) HK1070740A1 (de)

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US7534311B2 (en) * 2003-08-12 2009-05-19 Hitachi Metals, Ltd. R-t-b sintered magnet and rare earth alloy
EP1760734A1 (de) * 2004-06-25 2007-03-07 TDK Corporation Gesinterter seltenerdmagnet, rohmaterial-legierungspulver für einen gesinterten seltenerdmagneten und prozess zur herstellung eines gesinterten seltenerdmagneten
WO2006054617A1 (ja) 2004-11-17 2006-05-26 Tdk Corporation 希土類焼結磁石
US8012269B2 (en) 2004-12-27 2011-09-06 Shin-Etsu Chemical Co., Ltd. Nd-Fe-B rare earth permanent magnet material
WO2006098204A1 (ja) * 2005-03-14 2006-09-21 Tdk Corporation Ｒ－ｔ－ｂ系焼結磁石
US20070089806A1 (en) * 2005-10-21 2007-04-26 Rolf Blank Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same
CN101370606B (zh) * 2005-12-02 2013-12-25 日立金属株式会社 稀土类烧结磁体及其制造方法
JP5085071B2 (ja) * 2006-08-11 2012-11-28 株式会社東芝 永久磁石式回転電機の回転子
DE112007003122T5 (de) * 2006-12-21 2009-11-19 ULVAC, Inc., Chigasaki Permanentmagnet und Verfahren zu dessen Herstellung
CN101542644A (zh) * 2007-06-29 2009-09-23 Tdk株式会社 稀土磁铁
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
WO2009145229A1 (ja) * 2008-05-30 2009-12-03 株式会社 東芝 永久磁石およびその製造方法、モータ用永久磁石および永久磁石モータ
CN101853725B (zh) * 2009-04-03 2012-04-25 中国科学院宁波材料技术与工程研究所 烧结钕铁硼永磁材料的制备方法
EP2555207B1 (de) 2010-03-30 2017-11-01 TDK Corporation Seltenerd-sintermagnet, verfahren zu seiner herstellung sowie motor und automobil damit
EP2503562B1 (de) * 2010-03-31 2014-07-02 Nitto Denko Corporation Verfahren zur herstellung eines permanentmagneten
US20120182109A1 (en) * 2010-03-31 2012-07-19 Nitto Denko Corporation Permanent magnet and manufacturing method thereof
WO2011125585A1 (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
KR101189856B1 (ko) * 2010-03-31 2012-10-10 닛토덴코 가부시키가이샤 영구 자석 및 영구 자석의 제조 방법
CN102214508B (zh) * 2010-04-02 2014-03-12 烟台首钢磁性材料股份有限公司 R-t-b-m-a系稀土类永磁体以及其制造方法
JP2011258935A (ja) * 2010-05-14 2011-12-22 Shin Etsu Chem Co Ltd Ｒ−ｔ−ｂ系希土類焼結磁石
CN102456458B (zh) * 2010-10-15 2017-02-08 中国科学院宁波材料技术与工程研究所 高耐蚀性烧结钕铁硼磁体及其制备方法
CN103282976B (zh) * 2010-12-27 2017-02-08 Tdk株式会社 磁性体
CN102832003A (zh) * 2011-06-17 2012-12-19 中国科学院宁波材料技术与工程研究所 一种钕/铁/硼基永磁体
CN102436893B (zh) * 2011-12-15 2016-04-27 钢铁研究总院 一种无Tb少Dy的高矫顽力磁体及制备方法
WO2013122256A1 (ja) 2012-02-13 2013-08-22 Tdk株式会社 Ｒ－ｔ－ｂ系焼結磁石
WO2013122255A1 (ja) 2012-02-13 2013-08-22 Tdk株式会社 Ｒ－ｔ－ｂ系焼結磁石
CN103366939A (zh) * 2012-03-29 2013-10-23 通用电气公司 永磁体的制造方法
CN103366918A (zh) * 2012-03-29 2013-10-23 通用电气公司 永磁体及其制造方法
EP2833376A4 (de) * 2012-03-30 2015-06-03 Intermetallics Co Ltd Sintermagnet auf ndfeb-basis
WO2013191276A1 (ja) * 2012-06-22 2013-12-27 Tdk株式会社 焼結磁石
CN103093911B (zh) * 2013-01-25 2016-08-10 江苏东瑞磁材科技有限公司 一种烧结稀土永磁体的粉末
CN103106992B (zh) * 2013-02-06 2015-05-13 江苏南方永磁科技有限公司 一种高弯曲抗力永磁材料及制备方法
JP2015135935A (ja) * 2013-03-28 2015-07-27 Tdk株式会社 希土類磁石
CN103219117B (zh) * 2013-05-05 2016-04-06 沈阳中北真空磁电科技有限公司 一种双合金钕铁硼稀土永磁材料及制造方法
CN105453194B (zh) * 2013-08-12 2018-10-16 日立金属株式会社 R－t－b系烧结磁体
CN109887697B (zh) * 2013-11-05 2021-07-20 株式会社Ihi 稀土永磁材料以及稀土永磁材料的制造方法
CN103779024A (zh) * 2014-01-27 2014-05-07 江西江钨稀有金属新材料有限公司 一种纳米稀土永磁材料及其制备设备
JP6003920B2 (ja) * 2014-02-12 2016-10-05 トヨタ自動車株式会社 希土類磁石の製造方法
CN104143403A (zh) * 2014-07-31 2014-11-12 宁波科田磁业有限公司 提高烧结钕铁硼磁性能的一种制造方法
CN104252940B (zh) * 2014-09-12 2016-10-05 沈阳中北通磁科技股份有限公司 一种氮含量低的钕铁硼永磁铁及制造方法
CN104252939B (zh) * 2014-09-12 2016-10-05 沈阳中北通磁科技股份有限公司 一种具有复合主相的钕铁硼永磁铁及其制造方法
CN106448985A (zh) * 2015-09-28 2017-02-22 厦门钨业股份有限公司 一种复合含有Pr和W的R‑Fe‑B系稀土烧结磁铁
US10672546B2 (en) * 2016-02-26 2020-06-02 Tdk Corporation R-T-B based permanent magnet
KR101866023B1 (ko) * 2016-05-23 2018-06-08 현대자동차주식회사 자기특성이 우수한 희토류 영구자석 제조방법
JP6852351B2 (ja) 2016-10-28 2021-03-31 株式会社Ihi 希土類永久磁石の製造方法
KR102100759B1 (ko) 2016-11-08 2020-04-14 주식회사 엘지화학 금속 분말의 제조 방법 및 금속 분말
CN107134337A (zh) * 2017-04-05 2017-09-05 东莞市嘉达磁电制品有限公司 一种加Tb做N45H的钕铁硼材料配方
KR102092327B1 (ko) 2017-11-28 2020-03-23 주식회사 엘지화학 자석 분말의 제조 방법 및 자석 분말
US11527340B2 (en) 2018-07-09 2022-12-13 Daido Steel Co., Ltd. RFeB-based sintered magnet

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Also Published As

Publication number Publication date
HK1070740A1 (en) 2005-06-24
EP1462531A3 (de) 2005-03-30
EP1860203A1 (de) 2007-11-28
EP1462531B1 (de) 2007-11-14
DE602004009979T2 (de) 2008-09-18
EP1884574A1 (de) 2008-02-06
EP1884574B1 (de) 2011-09-14
US7199690B2 (en) 2007-04-03
EP1462531A2 (de) 2004-09-29
US20040189426A1 (en) 2004-09-30
EP1860203B1 (de) 2011-09-21
CN1277277C (zh) 2006-09-27
CN1540686A (zh) 2004-10-27

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