KR101548274B1 - 희토류 자석의 제조방법 - Google Patents

희토류 자석의 제조방법 Download PDF

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Publication number
KR101548274B1
KR101548274B1 KR1020147012659A KR20147012659A KR101548274B1 KR 101548274 B1 KR101548274 B1 KR 101548274B1 KR 1020147012659 A KR1020147012659 A KR 1020147012659A KR 20147012659 A KR20147012659 A KR 20147012659A KR 101548274 B1 KR101548274 B1 KR 101548274B1
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South Korea
Prior art keywords
alloy
phase
rare
rare earth
coercive force
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KR1020147012659A
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English (en)
Korean (ko)
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KR20140089544A (ko
Inventor
데츠야 쇼지
신야 오무라
모토키 히라오카
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도요타 지도샤（주）
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    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/11—Making amorphous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • 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
    • H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • 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
    • B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
KR1020147012659A 2011-11-14 2012-11-07 희토류 자석의 제조방법 Expired - Fee Related KR101548274B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011248923A JP5640954B2 (ja) 2011-11-14 2011-11-14 希土類磁石の製造方法
JPJP-P-2011-248923 2011-11-14
PCT/IB2012/002248 WO2013072728A1 (en) 2011-11-14 2012-11-07 Method of manufacturing rare-earth magnets

Publications (2)

Publication Number Publication Date
KR20140089544A KR20140089544A (ko) 2014-07-15
KR101548274B1 true KR101548274B1 (ko) 2015-08-28

Family

ID=47222154

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KR1020147012659A Expired - Fee Related KR101548274B1 (ko) 2011-11-14 2012-11-07 희토류 자석의 제조방법

Country Status (6)

Country Link
US (1) US20140308441A1 (enExample)
JP (1) JP5640954B2 (enExample)
KR (1) KR101548274B1 (enExample)
CN (1) CN103946931A (enExample)
DE (1) DE112012004741T5 (enExample)
WO (1) WO2013072728A1 (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5725200B2 (ja) 2011-11-14 2015-05-27 トヨタ自動車株式会社 希土類磁石
JP5790617B2 (ja) 2012-10-18 2015-10-07 トヨタ自動車株式会社 希土類磁石の製造方法
CN109300640B (zh) 2013-06-05 2021-03-09 丰田自动车株式会社 稀土磁体及其制造方法
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
JP5983598B2 (ja) * 2013-12-27 2016-08-31 トヨタ自動車株式会社 希土類磁石の製造方法
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
KR20160147711A (ko) * 2014-04-25 2016-12-23 히다찌긴조꾸가부시끼가이사 R-t-b계 소결 자석의 제조 방법
US10950373B2 (en) * 2014-12-08 2021-03-16 Lg Electronics Inc. Hot-pressed and deformed magnet comprising nonmagnetic alloy and method for manufacturing same
DE102015015930A1 (de) * 2015-12-09 2017-06-14 Wolfgang Kochanek Verfahren zur Herstellung magnetischer Werkstoffe
JP6717231B2 (ja) * 2017-02-28 2020-07-01 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP6717230B2 (ja) * 2017-02-28 2020-07-01 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
DE102018105250A1 (de) * 2018-03-07 2019-09-12 Technische Universität Darmstadt Verfahren zur Herstellung eines Permanentmagnets oder eines hartmagnetischen Materials
KR102561239B1 (ko) * 2018-11-27 2023-07-31 엘지이노텍 주식회사 희토류 자석 제조방법
JP7216957B2 (ja) * 2019-02-14 2023-02-02 大同特殊鋼株式会社 希土類磁石の製造方法
JP2021082622A (ja) * 2019-11-14 2021-05-27 大同特殊鋼株式会社 希土類磁石および希土類磁石の製造方法
CN113871122B (zh) * 2021-09-24 2024-11-15 烟台东星磁性材料股份有限公司 低重稀土磁体及制造方法
CN113871121B (zh) * 2021-09-24 2024-12-03 烟台东星磁性材料股份有限公司 耐高温磁体及其制造方法
TW202522518A (zh) * 2023-06-05 2025-06-01 韓商Ｌｇ伊諾特股份有限公司 永久磁鐵

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JP2010114200A (ja) * 2008-11-05 2010-05-20 Daido Steel Co Ltd 希土類磁石の製造方法

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JP3405806B2 (ja) * 1994-04-05 2003-05-12 ティーディーケイ株式会社 磁石およびその製造方法
JPH08250356A (ja) * 1995-03-13 1996-09-27 Daido Steel Co Ltd 異方性磁石用合金粉末、これを用いた異方性永久磁石とその製造方法
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Publication number Publication date
CN103946931A (zh) 2014-07-23
JP5640954B2 (ja) 2014-12-17
WO2013072728A1 (en) 2013-05-23
KR20140089544A (ko) 2014-07-15
WO2013072728A8 (en) 2013-07-25
DE112012004741T5 (de) 2014-07-31
JP2013105903A (ja) 2013-05-30
US20140308441A1 (en) 2014-10-16

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