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WO2009004994A1 - 希土類磁石 - Google Patents

希土類磁石 Download PDF

Info

Publication number
WO2009004994A1
WO2009004994A1 PCT/JP2008/061704 JP2008061704W WO2009004994A1 WO 2009004994 A1 WO2009004994 A1 WO 2009004994A1 JP 2008061704 W JP2008061704 W JP 2008061704W WO 2009004994 A1 WO2009004994 A1 WO 2009004994A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
rare earth
earth magnet
less
disclosed
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.)
Ceased
Application number
PCT/JP2008/061704
Other languages
English (en)
French (fr)
Inventor
Taeko Tsubokura
Makoto Iwasaki
Makoto Nakane
Fumitaka Baba
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
Application filed by TDK Corp filed Critical TDK Corp
Priority to US12/666,909 priority Critical patent/US8152936B2/en
Priority to EP08790669.9A priority patent/EP2172947B1/en
Priority to JP2008544690A priority patent/JP5153643B2/ja
Publication of WO2009004994A1 publication Critical patent/WO2009004994A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

　本発明は、優れたＢｒ及びＨｃＪを有する希土類磁石を提供することを目的とする。本発明の好適な実施形態の希土類磁石は、Ｒ（但し、ＲはＹを含む希土類元素から選ばれる１種以上の元素）、Ｂ、Ａｌ、Ｃｕ、Ｚｒ、Ｃｏ、Ｏ、Ｃ及びＦｅから主として構成され、各元素の含有割合が、Ｒ：２５～３４質量％、Ｂ：０．８５～０．９８質量％、Ａｌ：０．０３～０．３質量％、Ｃｕ：０．０１～０．１５質量％、Ｚｒ：０．０３～０．２５質量％、Ｃｏ：３質量％以下（但し、０質量％を含まず。）、Ｏ：０．２質量％以下、Ｃ：０．０３～０．１５質量％、Ｆｅ：残部、であることを特徴とする。
PCT/JP2008/061704 2007-06-29 2008-06-27 希土類磁石 Ceased WO2009004994A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/666,909 US8152936B2 (en) 2007-06-29 2008-06-27 Rare earth magnet
EP08790669.9A EP2172947B1 (en) 2007-06-29 2008-06-27 Rare earth magnet
JP2008544690A JP5153643B2 (ja) 2007-06-29 2008-06-27 希土類磁石

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-172789 2007-06-29
JP2007172789 2007-06-29

Publications (1)

Publication Number Publication Date
WO2009004994A1 true WO2009004994A1 (ja) 2009-01-08

Family

ID=40226040

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061704 Ceased WO2009004994A1 (ja) 2007-06-29 2008-06-27 希土類磁石

Country Status (5)

Country Link
US (1) US8152936B2 (ja)
EP (1) EP2172947B1 (ja)
JP (2) JP5153643B2 (ja)
CN (2) CN105118593A (ja)
WO (1) WO2009004994A1 (ja)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010219499A (ja) * 2009-02-18 2010-09-30 Tdk Corp Ｒ−ｔ−ｂ系希土類焼結磁石及びその製造方法
US20110234348A1 (en) * 2010-03-23 2011-09-29 Tdk Corporation Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator
JP2011199180A (ja) * 2010-03-23 2011-10-06 Tdk Corp 希土類磁石及び回転機
WO2011122667A1 (ja) 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
JP2011211056A (ja) * 2010-03-30 2011-10-20 Tdk Corp 希土類焼結磁石、モーター及び自動車
JP2014027268A (ja) * 2012-06-22 2014-02-06 Tdk Corp 焼結磁石
WO2015022946A1 (ja) * 2013-08-12 2015-02-19 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石およびｒ－ｔ－ｂ系焼結磁石の製造方法
WO2016015662A1 (zh) * 2014-07-30 2016-02-04 厦门钨业股份有限公司 稀土磁铁用急冷合金和稀土磁铁的制备方法
JP2017073463A (ja) * 2015-10-07 2017-04-13 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP2018093201A (ja) * 2016-12-06 2018-06-14 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
JP2018093202A (ja) * 2016-12-06 2018-06-14 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
JP2018160669A (ja) * 2017-03-22 2018-10-11 Tdk株式会社 Ｒ−ｔ−ｂ系希土類磁石
US10115507B2 (en) 2013-11-27 2018-10-30 Xiamen Tungsten Co., Ltd. Low-B bare earth magnet
JP2019102707A (ja) * 2017-12-05 2019-06-24 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
US10381139B2 (en) 2014-03-31 2019-08-13 Xiamen Tungsten Co., Ltd. W-containing R—Fe—B—Cu sintered magnet and quenching alloy
JP2020077843A (ja) * 2018-11-06 2020-05-21 大同特殊鋼株式会社 ＲＦｅＢ系焼結磁石
JP2020161811A (ja) * 2019-03-22 2020-10-01 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
JP2020161812A (ja) * 2019-03-22 2020-10-01 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
US10825589B2 (en) 2017-03-22 2020-11-03 Tdk Corporation R-T-B based rare earth magnet
JPWO2021095630A1 (ja) * 2019-11-11 2021-05-20
JPWO2021095633A1 (ja) * 2019-11-11 2021-05-20
JP2022115921A (ja) * 2016-12-06 2022-08-09 Tdk株式会社 Ｒ－ｔ－ｂ系永久磁石
JP2022537003A (ja) * 2019-09-03 2022-08-23 フージャン チャンティン ゴールデン ドラゴン レア－アース カンパニー リミテッド 希土類永久磁石材料、原料組成物、製造方法、応用、モーター
JP2022543489A (ja) * 2019-12-31 2022-10-12 フージャン チャンティン ゴールデン ドラゴン レア－アース カンパニー リミテッド Ｒ－ｔ－ｂ系永久磁石材料、原料組成物、製造方法、並びに応用

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JP2011258935A (ja) * 2010-05-14 2011-12-22 Shin Etsu Chem Co Ltd Ｒ−ｔ−ｂ系希土類焼結磁石
CN103858185B (zh) * 2011-10-13 2017-05-03 Tdk株式会社 R‑t‑b系烧结磁体及其制造方法、以及旋转电机
JP5464289B1 (ja) * 2013-04-22 2014-04-09 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP6265368B2 (ja) * 2013-04-22 2018-01-24 昭和電工株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石およびその製造方法
JP6287167B2 (ja) * 2013-07-16 2018-03-07 Tdk株式会社 希土類磁石
JP5999080B2 (ja) 2013-07-16 2016-09-28 Tdk株式会社 希土類磁石
JP6288095B2 (ja) * 2013-09-02 2018-03-07 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP5915637B2 (ja) 2013-12-19 2016-05-11 トヨタ自動車株式会社 希土類磁石の製造方法
JP5924335B2 (ja) 2013-12-26 2016-05-25 トヨタ自動車株式会社 希土類磁石とその製造方法
WO2017110680A1 (ja) * 2015-12-24 2017-06-29 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
JP2018056188A (ja) 2016-09-26 2018-04-05 信越化学工業株式会社 Ｒ−Ｆｅ−Ｂ系焼結磁石
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
US10672544B2 (en) * 2016-12-06 2020-06-02 Tdk Corporation R-T-B based permanent magnet
CN109754970B (zh) * 2017-11-01 2023-01-10 北京中科三环高技术股份有限公司 一种稀土磁体及其制备方法
JP7251916B2 (ja) * 2017-12-05 2023-04-04 Tdk株式会社 Ｒ－ｔ－ｂ系永久磁石
CN110335735A (zh) * 2019-07-18 2019-10-15 宁波科田磁业有限公司 一种r-t-b永磁材料及其制备方法
CN111613407B (zh) * 2020-06-03 2022-05-03 福建省长汀金龙稀土有限公司 一种r-t-b系永磁材料、原料组合物及其制备方法和应用
CN111968818B (zh) * 2020-09-04 2023-02-07 烟台正海磁性材料股份有限公司 一种钕铁硼永磁体及其制备方法和应用
JP7574736B2 (ja) * 2021-05-12 2024-10-29 信越化学工業株式会社 希土類焼結磁石及び希土類焼結磁石の製造方法
CN114188114A (zh) * 2021-11-15 2022-03-15 福建省长汀金龙稀土有限公司 一种烧结钕铁硼磁体材料及其制备方法和应用
CN114220622B (zh) * 2021-11-25 2025-11-28 福建省金龙稀土股份有限公司 抗氧化组合物、稀土永磁体、烧结磁铁类材料、制备方法
CN116564638A (zh) * 2022-01-30 2023-08-08 福建省长汀金龙稀土有限公司 一种r-t-b系磁体及其制备方法和应用
CN114664507B (zh) * 2022-04-14 2024-11-01 浙江大学 一种具有复合硬磁壳层结构的高性能稀土永磁材料及其制备方法
CN117012487A (zh) * 2022-04-29 2023-11-07 福建省长汀金龙稀土有限公司 钕铁硼磁体材料及其制备方法、应用

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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
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JP2006210893A (ja) * 2004-12-27 2006-08-10 Shin Etsu Chem Co Ltd Ｎｄ−Ｆｅ−Ｂ系希土類永久磁石材料
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Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010219499A (ja) * 2009-02-18 2010-09-30 Tdk Corp Ｒ−ｔ−ｂ系希土類焼結磁石及びその製造方法
US20110234348A1 (en) * 2010-03-23 2011-09-29 Tdk Corporation Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator
JP2011199180A (ja) * 2010-03-23 2011-10-06 Tdk Corp 希土類磁石及び回転機
US10395822B2 (en) * 2010-03-23 2019-08-27 Tdk Corporation Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator
US9350203B2 (en) 2010-03-30 2016-05-24 Tdk Corporation Rare earth sintered magnet, method for producing the same, motor, and automobile
WO2011122667A1 (ja) 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
JP2011211056A (ja) * 2010-03-30 2011-10-20 Tdk Corp 希土類焼結磁石、モーター及び自動車
JPWO2011122667A1 (ja) * 2010-03-30 2013-07-08 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
JP2014027268A (ja) * 2012-06-22 2014-02-06 Tdk Corp 焼結磁石
US10388442B2 (en) 2013-08-12 2019-08-20 Hitachi Metals, Ltd. R-T-B based sintered magnet and method for producing R-T-B based sintered magnet
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