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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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
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
JP2003088195A JP3762912B2 (ja) 2003-03-27 2003-03-27 Ｒ−ｔ−ｂ系希土類永久磁石
JP2003088195 2003-03-27
JP2004003435A JP3728316B2 (ja) 2004-01-08 2004-01-08 Ｒ−ｔ−ｂ系希土類永久磁石
JP2004003435 2004-01-08

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 (4)

Country Link
US (1) US7199690B2 (de)
EP (3) EP1860203B1 (de)
CN (1) CN1277277C (de)
DE (1) DE602004009979T2 (de)

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WO2005015580A1 (ja) * 2003-08-12 2005-02-17 Neomax Co., Ltd. Ｒ－ｔ－ｂ系焼結磁石および希土類合金
CN1947208B (zh) * 2004-06-25 2010-12-08 Tdk株式会社 稀土类烧结磁体、稀土类烧结磁体用原料合金粉末以及稀土类烧结磁体的制造方法
CN101036202B (zh) * 2004-11-17 2010-09-01 Tdk株式会社 稀土类烧结磁铁
EP1675133B1 (de) * 2004-12-27 2013-03-27 Shin-Etsu Chemical Co., Ltd. Nd-Fe-B Seltenerd-Magnetmaterial
CN100501884C (zh) * 2005-03-14 2009-06-17 Tdk株式会社 R-t-b系烧结磁体
US20070089806A1 (en) * 2005-10-21 2007-04-26 Rolf Blank Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same
JP4743211B2 (ja) * 2005-12-02 2011-08-10 日立金属株式会社 希土類焼結磁石及びその製造方法
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
JP5275043B2 (ja) * 2006-12-21 2013-08-28 株式会社アルバック 永久磁石及び永久磁石の製造方法
EP2172947B1 (de) * 2007-06-29 2020-01-22 TDK Corporation Seltenerdmagnet
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
JP4764526B2 (ja) * 2008-05-30 2011-09-07 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
US9350203B2 (en) 2010-03-30 2016-05-24 Tdk Corporation Rare earth sintered magnet, method for producing the same, motor, and automobile
KR101196565B1 (ko) * 2010-03-31 2012-11-01 닛토덴코 가부시키가이샤 영구 자석 및 영구 자석의 제조 방법
US8500920B2 (en) * 2010-03-31 2013-08-06 Nitto Denko Corporation Permanent magnet and manufacturing method thereof
US8491728B2 (en) * 2010-03-31 2013-07-23 Nitto Denko Corporation Permanent magnet and manufacturing method thereof
WO2011125595A1 (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
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
JP5527434B2 (ja) * 2010-12-27 2014-06-18 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
WO2013122255A1 (ja) 2012-02-13 2013-08-22 Tdk株式会社 Ｒ－ｔ－ｂ系焼結磁石
WO2013122256A1 (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
CN104221100B (zh) * 2012-03-30 2018-03-16 因太金属株式会社 NdFeB系烧结磁体
CN104395971B (zh) * 2012-06-22 2017-05-17 Tdk株式会社 烧结磁铁
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
JP6398977B2 (ja) * 2013-08-12 2018-10-03 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石
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
CN113990593B (zh) * 2021-10-08 2025-01-14 宁波市合美达新材料有限公司 一种钕铁硼磁体及其制备方法
CN118299137B (zh) * 2022-10-31 2025-12-09 福建省金龙稀土股份有限公司 一种r-t-b系永磁体及其制备方法和应用

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Also Published As

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

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