WO2008114571A1 - 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
WO2008114571A1
WO2008114571A1 PCT/JP2008/052950 JP2008052950W WO2008114571A1 WO 2008114571 A1 WO2008114571 A1 WO 2008114571A1 JP 2008052950 W JP2008052950 W JP 2008052950W WO 2008114571 A1 WO2008114571 A1 WO 2008114571A1
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WIPO (PCT)
Prior art keywords
permanent magnet
rare earth
earth permanent
base
production
Prior art date
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PCT/JP2008/052950
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English (en)
French (fr)
Inventor
Kenichiro Nakajima
Hiroshi Hasegawa
Original Assignee
Showa Denko K.K.
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.)
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Publication date
Application filed by Showa Denko K.K. filed Critical Showa Denko K.K.
Priority to EP08720781A priority Critical patent/EP2128290A4/en
Priority to KR1020087027125A priority patent/KR101106824B1/ko
Priority to US12/299,263 priority patent/US20090072938A1/en
Publication of WO2008114571A1 publication Critical patent/WO2008114571A1/ja

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0611Continuous 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06Metallic powder characterised by the shape of the particles
    • B22F1/068Flake-like particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/02Making ferrous alloys by powder metallurgy
    • C22C33/0257Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278Making 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%
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/04Magnets 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
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/058Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/04Magnets 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
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/059Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266Moulding; Pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • B22F2003/248Thermal after-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C2202/00Physical properties
    • C22C2202/02Magnetic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/04Magnets 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
    • H01F1/047Alloys characterised by their composition
    • H01F1/053Alloys characterised by their composition containing rare earth metals
    • H01F1/055Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571Alloys 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
    • H01F1/0575Alloys 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
    • H01F1/0577Alloys 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Continuous Casting (AREA)

Abstract

 本発明は、希土類系永久磁石に用いられる原料であるR-T-B系(但し、RはSc、Y、La、Ce、Pr、Nd、Pm、Sm、Eu、Gd、Tb、Ho、Er、Tm、Yb、Luのうち少なくとも1種であり、TはFeを80質量%以上含む遷移金属であり、BはBを50質量%以上含み、C、Nのうち少なくとも1種を0質量%以上50質量%未満含むものである。)合金であって、前記合金中のMn濃度が0.05wt%以下であるR-T-B系合金を提供する。
PCT/JP2008/052950 2007-03-22 2008-02-21 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 WO2008114571A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08720781A EP2128290A4 (en) 2007-03-22 2008-02-21 R-T-B BASED ALLOY, MANUFACTURING METHOD THEREOF, FINE POWDER FOR R-T-B RARE EARTH PERMANENT MAGNET, AND R-T-B RARE EARTH PERMANENT MAGNET
KR1020087027125A KR101106824B1 (ko) 2007-03-22 2008-02-21 R-t-b계 합금 및 r-t-b계 합금의 제조 방법, r-t-b계 희토류 영구 자석용 미분, r-t-b계 희토류 영구 자석
US12/299,263 US20090072938A1 (en) 2007-03-22 2008-02-21 R-t-b system alloy and method of preparing r-t-b system alloy, fine powder for r-t-b system rare earth permanent magnet, and r-t-b system rare earth permanent magnet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007075050A JP5274781B2 (ja) 2007-03-22 2007-03-22 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
JP2007-075050 2007-03-22

Publications (1)

Publication Number Publication Date
WO2008114571A1 true WO2008114571A1 (ja) 2008-09-25

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Country Status (8)

Country Link
US (1) US20090072938A1 (ja)
EP (1) EP2128290A4 (ja)
JP (1) JP5274781B2 (ja)
KR (1) KR101106824B1 (ja)
CN (1) CN101541999A (ja)
RU (1) RU2401878C2 (ja)
TW (1) TW200903533A (ja)
WO (1) WO2008114571A1 (ja)

Cited By (3)

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WO2014146781A1 (en) 2013-03-18 2014-09-25 Qiagen Gmbh Stabilisation of biological samples
JP2017139259A (ja) * 2016-02-01 2017-08-10 Tdk株式会社 R−t−b系焼結磁石用合金、及びr−t−b系焼結磁石
JP2020155636A (ja) * 2019-03-20 2020-09-24 Tdk株式会社 R−t−b系永久磁石

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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
CN102483979B (zh) * 2009-07-10 2016-06-08 因太金属株式会社 NdFeB烧结磁铁的制造方法
JP5743458B2 (ja) * 2010-09-03 2015-07-01 昭和電工株式会社 R−t−b系希土類永久磁石用合金材料、r−t−b系希土類永久磁石の製造方法およびモーター
JP5572673B2 (ja) 2011-07-08 2014-08-13 昭和電工株式会社 R−t−b系希土類焼結磁石用合金、r−t−b系希土類焼結磁石用合金の製造方法、r−t−b系希土類焼結磁石用合金材料、r−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石の製造方法およびモーター
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
JP6202722B2 (ja) * 2012-12-06 2017-09-27 昭和電工株式会社 R−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石の製造方法
JP6238444B2 (ja) * 2013-01-07 2017-11-29 昭和電工株式会社 R−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石用合金およびその製造方法
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CN105321647B (zh) 2014-07-30 2018-02-23 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
CN105405565B (zh) * 2015-12-18 2018-01-23 南京信息工程大学 一种磁性材料及制备方法
JP6849806B2 (ja) * 2016-12-29 2021-03-31 北京中科三環高技術股▲ふん▼有限公司Beijing Zhong Ke San Huan Hi−Tech Co.,Ltd. 微粒子希土類合金鋳片、その製造方法、および回転冷却ロール装置
KR102104673B1 (ko) 2019-03-06 2020-04-24 김태호 신축이음장치
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JP5274781B2 (ja) 2013-08-28
US20090072938A1 (en) 2009-03-19
KR101106824B1 (ko) 2012-01-19
CN101541999A (zh) 2009-09-23
EP2128290A4 (en) 2010-12-01
RU2401878C2 (ru) 2010-10-20
EP2128290A1 (en) 2009-12-02
TW200903533A (en) 2009-01-16
RU2008144139A (ru) 2010-05-20
KR20090033829A (ko) 2009-04-06

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