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
Application number
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 US12/299,263 priority Critical patent/US20090072938A1/en
Priority to EP08720781A priority patent/EP2128290A4/en
Priority to KR1020087027125A priority patent/KR101106824B1/ko
Publication of WO2008114571A1 publication Critical patent/WO2008114571A1/ja

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    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/068—Flake-like particles
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making 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
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • 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
    • H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus 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
    • H01F41/02—Apparatus 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
    • H01F41/0253—Apparatus 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
    • H01F41/0266—Moulding; Pressing
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • 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
    • H01F1/057—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

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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
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
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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-075050 2007-03-22
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

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
JP5687621B2 (ja) * 2009-07-10 2015-03-18 インターメタリックス株式会社 ＮｄＦｅＢ焼結磁石及びその製造方法
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
CN104674115A (zh) 2013-11-27 2015-06-03 厦门钨业股份有限公司 一种低b的稀土磁铁
JP6432406B2 (ja) * 2014-03-27 2018-12-05 日立金属株式会社 Ｒ−ｔ−ｂ系合金粉末およびｒ−ｔ−ｂ系焼結磁石
CN104952574A (zh) 2014-03-31 2015-09-30 厦门钨业股份有限公司 一种含W的Nd-Fe-B-Cu系烧结磁铁
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
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JP2008231535A (ja) 2008-10-02
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US20090072938A1 (en) 2009-03-19
EP2128290A1 (en) 2009-12-02
JP5274781B2 (ja) 2013-08-28
CN101541999A (zh) 2009-09-23
KR20090033829A (ko) 2009-04-06
TW200903533A (en) 2009-01-16
EP2128290A4 (en) 2010-12-01
KR101106824B1 (ko) 2012-01-19

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