EP2348518A4 - Method for producing rare earth sintered magnet and powder container for rare earth sintered magnet production - Google Patents

Method for producing rare earth sintered magnet and powder container for rare earth sintered magnet production

Info

Publication number
EP2348518A4
EP2348518A4 EP09824563.2A EP09824563A EP2348518A4 EP 2348518 A4 EP2348518 A4 EP 2348518A4 EP 09824563 A EP09824563 A EP 09824563A EP 2348518 A4 EP2348518 A4 EP 2348518A4
Authority
EP
European Patent Office
Prior art keywords
rare earth
sintered magnet
earth sintered
powder container
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.)
Granted
Application number
EP09824563.2A
Other languages
German (de)
French (fr)
Other versions
EP2348518A1 (en
EP2348518B1 (en
Inventor
Masato Sagawa
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.)
Intermetallics Co Ltd
Original Assignee
Intermetallics Co Ltd
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 Intermetallics Co Ltd filed Critical Intermetallics Co Ltd
Publication of EP2348518A1 publication Critical patent/EP2348518A1/en
Publication of EP2348518A4 publication Critical patent/EP2348518A4/en
Application granted granted Critical
Publication of EP2348518B1 publication Critical patent/EP2348518B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B22F2005/103—Cavity made by removal of insert
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • 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
    • H01F41/0273—Imparting anisotropy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
EP09824563.2A 2008-11-06 2009-10-29 Method for producing sintered rare earth magnet Not-in-force EP2348518B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008285007 2008-11-06
PCT/JP2009/005726 WO2010052862A1 (en) 2008-11-06 2009-10-29 Method for producing rare earth sintered magnet and powder container for rare earth sintered magnet production

Publications (3)

Publication Number Publication Date
EP2348518A1 EP2348518A1 (en) 2011-07-27
EP2348518A4 true EP2348518A4 (en) 2015-02-25
EP2348518B1 EP2348518B1 (en) 2016-08-24

Family

ID=42152675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09824563.2A Not-in-force EP2348518B1 (en) 2008-11-06 2009-10-29 Method for producing sintered rare earth magnet

Country Status (5)

Country Link
US (1) US20110250087A1 (en)
EP (1) EP2348518B1 (en)
JP (1) JP5690141B2 (en)
CN (2) CN102209999A (en)
WO (1) WO2010052862A1 (en)

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FR2959027B1 (en) 2010-04-15 2014-05-16 Commissariat Energie Atomique ELECTRONIC LITHOGRAPHY METHOD WITH CORRECTION OF LINES OF LINES BY INSERTION OF CONTRAST PATTERNS
JP5895425B2 (en) * 2010-09-29 2016-03-30 日立金属株式会社 Coupling device and method for manufacturing coupling device
JP5696626B2 (en) * 2011-09-07 2015-04-08 株式会社デンソー Manufacturing method of microchannel heat exchanger
US9468972B2 (en) * 2011-09-30 2016-10-18 Gm Global Technology Operations, Llc Method of making Nd—Fe—B sintered magnets with reduced dysprosium or terbium
JP5708581B2 (en) * 2012-07-09 2015-04-30 トヨタ自動車株式会社 Cleaved permanent magnet and method for manufacturing the same
JP6239825B2 (en) * 2013-01-25 2017-11-29 アイチエレック株式会社 Permanent magnet and method for manufacturing permanent magnet
JP6457166B2 (en) * 2013-01-25 2019-01-23 アイチエレック株式会社 Permanent magnet motor
KR20150128960A (en) * 2013-03-18 2015-11-18 인터메탈릭스 가부시키가이샤 RFeB-BASED SINTERED MAGNET PRODUCTION METHOD AND RFeB-BASED SINTERED MAGNETS
WO2014148356A1 (en) * 2013-03-18 2014-09-25 インターメタリックス株式会社 RFeB-BASED MAGNET PRODUCTION METHOD AND RFeB-BASED SINTERED MAGNETS
JP6425251B2 (en) * 2013-07-24 2018-11-21 Ｎｄｆｅｂ株式会社 Rare earth sintered magnet manufacturing method
KR101534706B1 (en) * 2013-12-18 2015-07-07 현대자동차 주식회사 Interior permanent magnet synchronous motor
JP6337616B2 (en) * 2014-05-28 2018-06-06 大同特殊鋼株式会社 Sintered magnet manufacturing mold and sintered magnet manufacturing method
US10629345B2 (en) * 2014-09-28 2020-04-21 Ndfeb Corporation Production method of rare earth sintered magnet and production device used in the production method
GB2540150B (en) 2015-07-06 2020-01-08 Dyson Technology Ltd Rare earth magnet with Dysprosium treatment
JP6627307B2 (en) * 2015-07-24 2020-01-08 大同特殊鋼株式会社 Manufacturing method of sintered magnet
JPWO2017104788A1 (en) * 2015-12-16 2018-10-11 日立金属株式会社 Method for analyzing anisotropic sintered magnet and method for producing anisotropic sintered magnet using the same
US20180029123A1 (en) * 2016-07-29 2018-02-01 General Electric Company Removable support package for additive manufacture
CN107424703B (en) * 2017-09-06 2018-12-11 内蒙古鑫众恒磁性材料有限责任公司 Grain boundary decision legal system makees the heavy rare earth attachment technique of sintered NdFeB permanent magnet
US11440097B2 (en) 2019-02-12 2022-09-13 General Electric Company Methods for additively manufacturing components using lattice support structures
WO2023210842A1 (en) * 2022-04-29 2023-11-02 주식회사 디아이씨 Method for manufacturing rare earth permanent magnet
CN114823025B (en) * 2022-05-10 2024-02-02 江西金力永磁科技股份有限公司 Low-eddy-current-loss neodymium-iron-boron magnet
CN114743748B (en) * 2022-05-10 2024-02-27 江西金力永磁科技股份有限公司 Low-eddy-current-loss neodymium-iron-boron magnet

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DE10146986A1 (en) * 2001-09-24 2003-04-10 Schott Glas Micro-structured arrangement, especially a stamping tool, is produced by preparing a powdery work material, preparing a negative master, embedding the master in the work material, and isostatic pressing
US20070017601A1 (en) * 2005-07-22 2007-01-25 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine
US20070245851A1 (en) * 2004-07-01 2007-10-25 Intermetallics Co., Ltd. Method and System for Manufacturing Sintered Rare-Earth Magnet Having Magnetic Anisotropy

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DE10146986A1 (en) * 2001-09-24 2003-04-10 Schott Glas Micro-structured arrangement, especially a stamping tool, is produced by preparing a powdery work material, preparing a negative master, embedding the master in the work material, and isostatic pressing
US20070245851A1 (en) * 2004-07-01 2007-10-25 Intermetallics Co., Ltd. Method and System for Manufacturing Sintered Rare-Earth Magnet Having Magnetic Anisotropy
US20070017601A1 (en) * 2005-07-22 2007-01-25 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine

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See also references of WO2010052862A1 *

Also Published As

Publication number Publication date
JPWO2010052862A1 (en) 2012-04-05
CN105355415A (en) 2016-02-24
EP2348518A1 (en) 2011-07-27
US20110250087A1 (en) 2011-10-13
WO2010052862A1 (en) 2010-05-14
JP5690141B2 (en) 2015-03-25
EP2348518B1 (en) 2016-08-24
CN102209999A (en) 2011-10-05

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