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WO2009075351A1 - Ｒ－ｔ－ｂ系合金及びｒ－ｔ－ｂ系合金の製造方法、ｒ－ｔ－ｂ系希土類永久磁石用微粉、ｒ－ｔ－ｂ系希土類永久磁石 - Google Patents

Ｒ－ｔ－ｂ系合金及びｒ－ｔ－ｂ系合金の製造方法、ｒ－ｔ－ｂ系希土類永久磁石用微粉、ｒ－ｔ－ｂ系希土類永久磁石 Download PDF

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Publication number
WO2009075351A1
WO2009075351A1 PCT/JP2008/072635 JP2008072635W WO2009075351A1 WO 2009075351 A1 WO2009075351 A1 WO 2009075351A1 JP 2008072635 W JP2008072635 W JP 2008072635W WO 2009075351 A1 WO2009075351 A1 WO 2009075351A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
rare earth
permanent magnets
earth permanent
production
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/JP2008/072635
Other languages
English (en)
French (fr)
Inventor
Kenichiro Nakajima
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to US12/744,452 priority Critical patent/US20100230013A1/en
Priority to CN2008801197715A priority patent/CN101888909A/zh
Priority to EP08859921A priority patent/EP2226137A4/en
Priority to JP2009545457A priority patent/JPWO2009075351A1/ja
Publication of WO2009075351A1 publication Critical patent/WO2009075351A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

　本発明は、希土類系永久磁石に用いられるＲ－Ｔ－Ｂ系合金（ただし、ＲはＤｙおよび/またはＴｂを必須とするＹを含む希土類元素のうち少なくとも１種以上の元素であり、ＴはＦｅを必須とする金属であり、Ｂはホウ素である）であって、Ｒ２Ｔ１４Ｂ相である主相とＲリッチ相とを有し、前記Ｒ－Ｔ－Ｂ系合金全体のＤｙおよび/またはＴｂの濃度の平均値を平均濃度としたとき、前記Ｒ－Ｔ－Ｂ系合金の任意の断面における前記主相の面積の６０％以上の領域が、平均濃度以上の前記Ｄｙおよび/またはＴｂを含有することを特徴とするＲ－Ｔ－Ｂ系合金を提供することを目的とする。また、本発明は、該Ｒ－Ｔ－Ｂ系合金の製造方法、並びに該Ｒ－Ｔ－Ｂ系合金から作製したＲ－Ｔ－Ｂ系希土類永久磁石用微粉、Ｒ－Ｔ－Ｂ系希土類永久磁石及びモータを提供することを目的とする。
PCT/JP2008/072635 2007-12-13 2008-12-12 Ｒ－ｔ－ｂ系合金及びｒ－ｔ－ｂ系合金の製造方法、ｒ－ｔ－ｂ系希土類永久磁石用微粉、ｒ－ｔ－ｂ系希土類永久磁石 Ceased WO2009075351A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/744,452 US20100230013A1 (en) 2007-12-13 2008-12-12 R-t-b alloy, process for production of r-t-b alloy, fine powder for r-t-b rare earth permanent magnets, and r-t-b rare earth permanent magnet
CN2008801197715A CN101888909A (zh) 2007-12-13 2008-12-12 R-t-b系合金和r-t-b系合金的制造方法、r-t-b系稀土类永久磁铁用微粉、r-t-b系稀土类永久磁铁
EP08859921A EP2226137A4 (en) 2007-12-13 2008-12-12 R-T-B ALLOYING, R-T-B ALLOY MANUFACTURING METHOD, FINE-POWDER FOR R-T-B-R-SELTENER-PERMANENT MAGNETS, AND R-T-B-RARENTER PERMANENT MAGNETS
JP2009545457A JPWO2009075351A1 (ja) 2007-12-13 2008-12-12 Ｒ−ｔ−ｂ系合金及びｒ−ｔ−ｂ系合金の製造方法、ｒ−ｔ−ｂ系希土類永久磁石用微粉、ｒ−ｔ−ｂ系希土類永久磁石

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-322059 2007-12-13
JP2007322059 2007-12-13

Publications (1)

Publication Number Publication Date
WO2009075351A1 true WO2009075351A1 (ja) 2009-06-18

Family

ID=40755587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/072635 Ceased WO2009075351A1 (ja) 2007-12-13 2008-12-12 Ｒ－ｔ－ｂ系合金及びｒ－ｔ－ｂ系合金の製造方法、ｒ－ｔ－ｂ系希土類永久磁石用微粉、ｒ－ｔ－ｂ系希土類永久磁石

Country Status (5)

Country Link
US (1) US20100230013A1 (ja)
EP (1) EP2226137A4 (ja)
JP (1) JPWO2009075351A1 (ja)
CN (1) CN101888909A (ja)
WO (1) WO2009075351A1 (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011143455A (ja) * 2010-01-15 2011-07-28 Toyota Motor Corp 磁石材料の製造方法および製造装置
JP2011199069A (ja) * 2010-03-19 2011-10-06 Tdk Corp 希土類焼結磁石の製造方法及び希土類焼結磁石用材料
US20130092868A1 (en) * 2010-06-29 2013-04-18 Showa Denko K.K. R-t-b-based rare earth permanent magnet, motor, automobile, power generator, and wind power-generating apparatus
EP2589445A4 (en) * 2010-07-02 2016-10-05 Santoku Corp METHOD FOR PRODUCING AN ALLOCATED BRAMES FOR RARE-SINDER MAGNETS
JP6005263B2 (ja) * 2013-04-24 2016-10-12 和歌山レアアース株式会社 Ｒ−ｔ−ｂ系磁石用原料合金
JP6005257B2 (ja) * 2013-03-29 2016-10-12 和歌山レアアース株式会社 Ｒ−ｔ−ｂ系磁石用原料合金およびその製造方法
JP2016184737A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
JP2016184735A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
JP2016184736A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
US20170103851A1 (en) * 2009-07-10 2017-04-13 Intermetallics Co., Ltd. Sintered ndfeb magnet and method for manufacturing the same
US10854380B2 (en) 2008-01-11 2020-12-01 Daido Steel Co., Ltd. NdFeB sintered magnet and method for producing the same
WO2022209466A1 (ja) * 2021-03-29 2022-10-06 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110298571A1 (en) * 2010-06-04 2011-12-08 Irena Skulj Rare earth magnetic materials comprising gallium and methods of making the same
JP5982680B2 (ja) * 2011-10-28 2016-08-31 Tdk株式会社 Ｒ−ｔ−ｂ系合金粉末、並びに異方性ボンド磁石用コンパウンド及び異方性ボンド磁石
CN102982936B (zh) * 2012-11-09 2015-09-23 厦门钨业股份有限公司 烧结Nd-Fe-B系磁铁的省却工序的制作方法
JP6303480B2 (ja) * 2013-03-28 2018-04-04 Tdk株式会社 希土類磁石
JP6183598B2 (ja) * 2013-08-06 2017-08-23 大同特殊鋼株式会社 磁石用合金製造装置
JP6578916B2 (ja) * 2015-12-03 2019-09-25 Tdk株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石用合金の製造方法およびｒ−ｔ−ｂ系希土類焼結磁石の製造方法
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
DE102017222062A1 (de) 2016-12-06 2018-06-07 Tdk Corporation Permanentmagnet auf R-T-B-Basis
DE102017222060A1 (de) 2016-12-06 2018-06-07 Tdk Corporation Permanentmagnet auf R-T-B-Basis
JP6863008B2 (ja) * 2017-03-30 2021-04-21 Tdk株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石用合金およびｒ−ｔ−ｂ系希土類焼結磁石の製造方法
CN110571007B (zh) * 2019-09-03 2021-06-11 厦门钨业股份有限公司 一种稀土永磁材料、原料组合物、制备方法、应用、电机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05222488A (ja) 1992-02-15 1993-08-31 Santoku Kinzoku Kogyo Kk 永久磁石用合金鋳塊及びその製造法
JPH05295490A (ja) 1992-02-21 1993-11-09 Tdk Corp 磁石製造用母合金およびその製造方法ならびに磁石の製造方法
JP2003188006A (ja) 2001-12-18 2003-07-04 Showa Denko Kk 希土類磁石用合金薄片、その製造方法、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末およびボンド磁石
JP2004043921A (ja) 2002-07-15 2004-02-12 Showa Denko Kk 希土類含有合金薄片、その製造方法、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末およびボンド磁石
JP2004181531A (ja) 2002-11-22 2004-07-02 Showa Denko Kk 希土類含有合金薄片の製造方法、希土類磁石用合金薄片、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末、及びボンド磁石並びに金属組織評価方法
JP2005288493A (ja) * 2004-03-31 2005-10-20 Tdk Corp 合金薄板の製造方法及び製造装置、合金粉末の製造方法
WO2005105343A1 (ja) * 2004-04-30 2005-11-10 Neomax Co., Ltd. 希土類磁石用原料合金および粉末ならびに焼結磁石の製造方法
JP2007067419A (ja) 2001-06-22 2007-03-15 Neomax Co Ltd 希土類磁石およびその製造方法
JP2007277655A (ja) 2006-04-07 2007-10-25 Showa Denko Kk 合金の製造装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383978A (en) * 1992-02-15 1995-01-24 Santoku Metal Industry Co., Ltd. Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet
CN1228158C (zh) * 2000-10-06 2005-11-23 株式会社三德 使用薄带铸造法的纳米复合型永磁体用原料合金制造方法
WO2003001541A1 (fr) * 2001-06-22 2003-01-03 Sumitomo Special Metals Co., Ltd. Aimant des terres rares et procede de production dudit aimant
WO2003052778A1 (en) * 2001-12-18 2003-06-26 Showa Denko K.K. Alloy flake for rare earth magnet, production method thereof, alloy powder for rare earth sintered magnet, rare earth sintered magnet, alloy powder for bonded magnet and bonded magnet
JP4389427B2 (ja) * 2002-02-05 2009-12-24 日立金属株式会社 希土類−鉄−硼素系磁石用合金粉末を用いた焼結磁石

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05222488A (ja) 1992-02-15 1993-08-31 Santoku Kinzoku Kogyo Kk 永久磁石用合金鋳塊及びその製造法
JPH05295490A (ja) 1992-02-21 1993-11-09 Tdk Corp 磁石製造用母合金およびその製造方法ならびに磁石の製造方法
JP2007067419A (ja) 2001-06-22 2007-03-15 Neomax Co Ltd 希土類磁石およびその製造方法
JP2003188006A (ja) 2001-12-18 2003-07-04 Showa Denko Kk 希土類磁石用合金薄片、その製造方法、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末およびボンド磁石
JP2004043921A (ja) 2002-07-15 2004-02-12 Showa Denko Kk 希土類含有合金薄片、その製造方法、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末およびボンド磁石
JP2004181531A (ja) 2002-11-22 2004-07-02 Showa Denko Kk 希土類含有合金薄片の製造方法、希土類磁石用合金薄片、希土類焼結磁石用合金粉末、希土類焼結磁石、ボンド磁石用合金粉末、及びボンド磁石並びに金属組織評価方法
JP2005288493A (ja) * 2004-03-31 2005-10-20 Tdk Corp 合金薄板の製造方法及び製造装置、合金粉末の製造方法
WO2005105343A1 (ja) * 2004-04-30 2005-11-10 Neomax Co., Ltd. 希土類磁石用原料合金および粉末ならびに焼結磁石の製造方法
JP2007277655A (ja) 2006-04-07 2007-10-25 Showa Denko Kk 合金の製造装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2226137A4

Cited By (15)

* Cited by examiner, † Cited by third party
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US10854380B2 (en) 2008-01-11 2020-12-01 Daido Steel Co., Ltd. NdFeB sintered magnet and method for producing the same
US20170103851A1 (en) * 2009-07-10 2017-04-13 Intermetallics Co., Ltd. Sintered ndfeb magnet and method for manufacturing the same
JP2011143455A (ja) * 2010-01-15 2011-07-28 Toyota Motor Corp 磁石材料の製造方法および製造装置
JP2011199069A (ja) * 2010-03-19 2011-10-06 Tdk Corp 希土類焼結磁石の製造方法及び希土類焼結磁石用材料
US20130092868A1 (en) * 2010-06-29 2013-04-18 Showa Denko K.K. R-t-b-based rare earth permanent magnet, motor, automobile, power generator, and wind power-generating apparatus
EP2589445A4 (en) * 2010-07-02 2016-10-05 Santoku Corp METHOD FOR PRODUCING AN ALLOCATED BRAMES FOR RARE-SINDER MAGNETS
US9862030B2 (en) 2010-07-02 2018-01-09 Santoku Corporation Method for producing alloy cast slab for rare earth sintered magnet
JP6005257B2 (ja) * 2013-03-29 2016-10-12 和歌山レアアース株式会社 Ｒ−ｔ−ｂ系磁石用原料合金およびその製造方法
JP6005263B2 (ja) * 2013-04-24 2016-10-12 和歌山レアアース株式会社 Ｒ−ｔ−ｂ系磁石用原料合金
JP2016184737A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
JP2016184735A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
JP2016184736A (ja) * 2015-03-25 2016-10-20 Tdk株式会社 希土類磁石
WO2022209466A1 (ja) * 2021-03-29 2022-10-06 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
JPWO2022209466A1 (ja) * 2021-03-29 2022-10-06
JP7750281B2 (ja) 2021-03-29 2025-10-07 株式会社プロテリアル Ｒ－ｔ－ｂ系焼結磁石の製造方法

Also Published As

Publication number Publication date
JPWO2009075351A1 (ja) 2011-04-28
EP2226137A1 (en) 2010-09-08
EP2226137A4 (en) 2012-01-25
US20100230013A1 (en) 2010-09-16
CN101888909A (zh) 2010-11-17

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