BR112013000789A2 - método para produzir ímãs sinterizados à base de r-t-b - Google Patents

método para produzir ímãs sinterizados à base de r-t-b

Info

Publication number
BR112013000789A2
BR112013000789A2 BR112013000789A BR112013000789A BR112013000789A2 BR 112013000789 A2 BR112013000789 A2 BR 112013000789A2 BR 112013000789 A BR112013000789 A BR 112013000789A BR 112013000789 A BR112013000789 A BR 112013000789A BR 112013000789 A2 BR112013000789 A2 BR 112013000789A2
Authority
BR
Brazil
Prior art keywords
producing
based sintered
magnet body
diffusion source
sintered magnet
Prior art date
Application number
BR112013000789A
Other languages
English (en)
Inventor
Futoshi Kuniyoshi
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of BR112013000789A2 publication Critical patent/BR112013000789A2/pt

Links

Classifications

    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • 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
    • 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
    • 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
    • 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
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • 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
    • C22C1/02—Making non-ferrous alloys by melting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)

Abstract

método para produzir ímãs sinterizados à base de r-t-b. a presente invenção refere-se a um método para produzir um ímã sinterizado à base de r-t-b que inclui as etapasde : proporcionar um corpo de ímã sinterizado à base de r-t-b (1); proporcionar uma fonte de difusão de rh que inclui um elemento de terras raras pesado de rh ( que é pelo menos um entre dy e tb) e 30% em massa a 80% em massa de fe; carregar o corpo de ímã sinterizado à base de r-t-b (1) e a fonte de difusão de rh (2) para dentro de uma câmara de processamento (3), de modo que o corpo de ímã (1) e a fonte de difusão (2) sejam móveis em relação uns aos outros e sejam prontamente colocados próximos ou em contato uns com os outros; e realizar um processo de difusão de rh no qual o corpo de ímã sinterzado (1) e a fonte de difusão de rh (2) são aquecidos a uma temperatura de processamento de mais de 580°c a 1000°c enquanto são movidos de maneira contínua ou descontínua na câmara de processamento.
BR112013000789A 2010-07-12 2011-07-12 método para produzir ímãs sinterizados à base de r-t-b BR112013000789A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010157837 2010-07-12
PCT/JP2011/065837 WO2012008426A1 (ja) 2010-07-12 2011-07-12 Ｒ－ｔ－ｂ系焼結磁石の製造方法

Publications (1)

Publication Number Publication Date
BR112013000789A2 true BR112013000789A2 (pt) 2016-08-09

Family

ID=45469424

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013000789A BR112013000789A2 (pt) 2010-07-12 2011-07-12 método para produzir ímãs sinterizados à base de r-t-b

Country Status (7)

Country Link
US (1) US9368276B2 (pt)
EP (1) EP2595163B1 (pt)
JP (1) JP5831451B2 (pt)
KR (1) KR101823425B1 (pt)
CN (1) CN103003898B (pt)
BR (1) BR112013000789A2 (pt)
WO (1) WO2012008426A1 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012043692A1 (ja) * 2010-09-30 2012-04-05 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
JP5880448B2 (ja) * 2011-01-19 2016-03-09 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
CN103329220B (zh) 2011-01-19 2016-08-24 日立金属株式会社 R-t-b系烧结磁体
JP5850052B2 (ja) * 2011-06-27 2016-02-03 日立金属株式会社 Ｒｈ拡散源およびそれを用いたｒ−ｔ−ｂ系焼結磁石の製造方法
US9478332B2 (en) * 2012-01-19 2016-10-25 Hitachi Metals, Ltd. Method for producing R-T-B sintered magnet
JP2013225533A (ja) * 2012-03-19 2013-10-31 Hitachi Metals Ltd Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP2013207134A (ja) * 2012-03-29 2013-10-07 Hitachi Metals Ltd バルクｒｈ拡散源
WO2013146073A1 (ja) * 2012-03-30 2013-10-03 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
US10233516B2 (en) 2013-01-28 2019-03-19 Hitachi Metals, Ltd. Method for recovering heavy rare earth element
EP3211647B1 (en) * 2015-02-27 2018-09-19 Hitachi Metals, Ltd. Method for manufacturing r-t-b based sintered magnet
JP6443179B2 (ja) * 2015-03-30 2018-12-26 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP2017216778A (ja) * 2016-05-30 2017-12-07 Tdk株式会社 モータ
JP6939336B2 (ja) * 2017-09-28 2021-09-22 日立金属株式会社 拡散源
JP7196514B2 (ja) * 2018-10-04 2022-12-27 信越化学工業株式会社 希土類焼結磁石
CN115440495A (zh) * 2022-10-10 2022-12-06 烟台东星磁性材料股份有限公司 钕铁硼磁体矫顽力提升方法以及由该方法制备的磁体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004296973A (ja) 2003-03-28 2004-10-21 Kenichi Machida 金属蒸気収着による高性能希土類磁石の製造
CN103227022B (zh) * 2006-03-03 2017-04-12 日立金属株式会社 R‑Fe‑B系稀土类烧结磁铁
JP2009194262A (ja) 2008-02-17 2009-08-27 Osaka Univ 希土類磁石の製造方法
JP5256851B2 (ja) * 2008-05-29 2013-08-07 Ｔｄｋ株式会社 磁石の製造方法
EP2455954B1 (en) * 2009-07-15 2019-10-16 Hitachi Metals, Ltd. Process for production of r-t-b based sintered magnets

Also Published As

Publication number Publication date
EP2595163A1 (en) 2013-05-22
EP2595163B1 (en) 2019-05-29
KR101823425B1 (ko) 2018-01-30
EP2595163A4 (en) 2017-12-20
WO2012008426A1 (ja) 2012-01-19
KR20130090784A (ko) 2013-08-14
US20130087248A1 (en) 2013-04-11
CN103003898A (zh) 2013-03-27
US9368276B2 (en) 2016-06-14
CN103003898B (zh) 2016-07-27
JPWO2012008426A1 (ja) 2013-09-09
JP5831451B2 (ja) 2015-12-09

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Legal Events

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B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B11T Dismissal: dismissal of application maintained