WO2009025086A1 - NdFeB系焼結磁石の製造方法およびNdFeB焼結磁石製造用モールド - Google Patents

NdFeB系焼結磁石の製造方法およびNdFeB焼結磁石製造用モールド Download PDF

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Publication number
WO2009025086A1
WO2009025086A1 PCT/JP2008/002251 JP2008002251W WO2009025086A1 WO 2009025086 A1 WO2009025086 A1 WO 2009025086A1 JP 2008002251 W JP2008002251 W JP 2008002251W WO 2009025086 A1 WO2009025086 A1 WO 2009025086A1
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WO
WIPO (PCT)
Prior art keywords
mold
ndfeb magnet
sintered ndfeb
producing sintered
produced
Prior art date
Application number
PCT/JP2008/002251
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English (en)
French (fr)
Inventor
Masato Sagawa
Original Assignee
Intermetallics Co., Ltd.
Mitsubishi Corporation
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., Mitsubishi Corporation filed Critical Intermetallics Co., Ltd.
Priority to CA2696700A priority Critical patent/CA2696700C/en
Priority to CN200880102582A priority patent/CN101809689A/zh
Priority to US12/673,937 priority patent/US9831034B2/en
Priority to EP08827794.2A priority patent/EP2187410B1/en
Publication of WO2009025086A1 publication Critical patent/WO2009025086A1/ja

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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
    • 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
    • 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
    • B22F3/02—Compacting only
    • B22F3/087—Compacting only using high energy impulses, e.g. magnetic field impulses
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

　本発明の課題は、安価で加工しやすく脆化が生じないモールドを用いて、NdFeB系焼結磁石を湾曲や変形が生じることなく製造することができる方法及びモールドを提供することにある。本発明では、モールドのうちの少なくとも一部（例えば底板１１）に炭素材料を用いる。炭素材料は金属よりも、焼結時に焼結体との間に生じる摩擦が小さいため、焼結収縮による摩擦を原因とする湾曲や変形を生じさせることなく、NdFeB系焼結磁石を製造することができる。しかも、炭素材料は安価で加工しやすく、モールドを繰り返し使用しても脆化が生じることがない。このような効果は、焼結時に焼結体の荷重が掛かる底板１１に炭素材料を使用することにより、特に顕著に得ることができる。
PCT/JP2008/002251 2007-08-20 2008-08-20 NdFeB系焼結磁石の製造方法およびNdFeB焼結磁石製造用モールド WO2009025086A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2696700A CA2696700C (en) 2007-08-20 2008-08-20 Method for making ndfeb system sintered magnet and mold for making the same
CN200880102582A CN101809689A (zh) 2007-08-20 2008-08-20 NdFeB系烧结磁铁的制造方法及NdFeB烧结磁铁制造用模
US12/673,937 US9831034B2 (en) 2007-08-20 2008-08-20 Method for making NdFeB sintered magnet and mold for making the same
EP08827794.2A EP2187410B1 (en) 2007-08-20 2008-08-20 METHOD FOR MAKING NdFeB SINTERED MAGNET AND MOLD FOR MAKING THE SAME

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007214074A JP4879843B2 (ja) 2007-08-20 2007-08-20 ＮｄＦｅＢ系焼結磁石の製造方法およびＮｄＦｅＢ焼結磁石製造用モールド
JP2007-214074 2007-08-20

Publications (1)

Publication Number Publication Date
WO2009025086A1 true WO2009025086A1 (ja) 2009-02-26

Family

ID=40377995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002251 WO2009025086A1 (ja) 2007-08-20 2008-08-20 NdFeB系焼結磁石の製造方法およびNdFeB焼結磁石製造用モールド

Country Status (7)

Country Link
US (1) US9831034B2 (ja)
EP (2) EP3091545A1 (ja)
JP (1) JP4879843B2 (ja)
KR (1) KR20100043086A (ja)
CN (2) CN105097262A (ja)
CA (1) CA2696700C (ja)
WO (1) WO2009025086A1 (ja)

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CN104392838A (zh) * 2009-08-28 2015-03-04 因太金属株式会社 NdFeB系烧结磁铁的制造方法、制造装置、及该制造方法所制造的NdFeB系烧结磁铁
CN102893348B (zh) * 2010-05-10 2016-04-27 因太金属株式会社 NdFeB类烧结磁体制造装置
CN102228760A (zh) * 2011-06-29 2011-11-02 无锡光旭新材料科技有限公司 一种永磁体过滤棒及其永磁材料体的制备方法
JP6186363B2 (ja) * 2012-08-27 2017-08-23 インターメタリックス株式会社 ＮｄＦｅＢ系焼結磁石
CN103093921B (zh) * 2013-01-29 2016-08-24 烟台首钢磁性材料股份有限公司 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置
EP2975619A4 (en) * 2013-03-12 2016-03-09 Intermetallics Co Ltd PROCESS FOR PRODUCING RFEB SINTERED MAGNET AND RFEB SINTERED MAGNET PRODUCED THEREBY
JP6425251B2 (ja) * 2013-07-24 2018-11-21 Ｎｄｆｅｂ株式会社 希土類焼結磁石製造法
CN104575919A (zh) * 2013-10-10 2015-04-29 三环瓦克华（北京）磁性器件有限公司 一种烧结钕铁硼磁体及其制造方法
EP3124629A4 (en) * 2014-03-28 2017-11-22 Hitachi Metals, Ltd. Method for recovering rare earth element
JP6337616B2 (ja) * 2014-05-28 2018-06-06 大同特殊鋼株式会社 焼結磁石製造用モールド及び焼結磁石製造方法
JP6213423B2 (ja) * 2014-08-25 2017-10-18 トヨタ自動車株式会社 希土類磁石の製造方法
JP6627307B2 (ja) * 2015-07-24 2020-01-08 大同特殊鋼株式会社 焼結磁石製造方法
FR3048630B1 (fr) * 2016-03-14 2020-02-21 Centre National De La Recherche Scientifique Procede de fabrication d'une plaque abradable et de reparation d'un anneau de turbine
JP6848464B2 (ja) * 2017-01-19 2021-03-24 大同特殊鋼株式会社 焼結磁石製造用モールド及び該モールドを用いた焼結磁石製造方法
CN113084161B (zh) * 2021-03-30 2023-04-14 博深股份有限公司 一种粉末冶金闸片通用烧结模具及使用方法
CN113851322B (zh) * 2021-10-15 2024-09-06 江西嘉圆磁电科技有限公司 一种烧结钕铁硼工件的生产加工工艺

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WO2006046838A1 (en) 2004-10-28 2006-05-04 Tesla Co., Ltd. A manufacture method of ndfeb isotropic and anisotropic permanent magnets
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JPH07153612A (ja) * 1993-11-26 1995-06-16 Sumitomo Special Metals Co Ltd Ｆｅ−Ｂ−Ｒ系磁石材料の製造方法
WO2006046838A1 (en) 2004-10-28 2006-05-04 Tesla Co., Ltd. A manufacture method of ndfeb isotropic and anisotropic permanent magnets
JP2006265601A (ja) 2005-03-23 2006-10-05 Tdk Corp 希土類磁石焼結用容器及びそれを用いた希土類磁石の製造方法
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See also references of EP2187410A4

Also Published As

Publication number Publication date
JP2009049202A (ja) 2009-03-05
US20110070118A1 (en) 2011-03-24
EP2187410A4 (en) 2011-08-24
US9831034B2 (en) 2017-11-28
JP4879843B2 (ja) 2012-02-22
CA2696700A1 (en) 2009-02-26
EP3091545A1 (en) 2016-11-09
CN105097262A (zh) 2015-11-25
CN101809689A (zh) 2010-08-18
CA2696700C (en) 2016-03-15
KR20100043086A (ko) 2010-04-27
EP2187410A1 (en) 2010-05-19
EP2187410B1 (en) 2016-07-20

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