EP3625807A4 - HOT-DEFORMED MAGNET AND PROCESS FOR PREPARING SAID HOT-DEFORMED MAGNET - Google Patents

HOT-DEFORMED MAGNET AND PROCESS FOR PREPARING SAID HOT-DEFORMED MAGNET Download PDF

Info

Publication number
EP3625807A4
EP3625807A4 EP17910333.8A EP17910333A EP3625807A4 EP 3625807 A4 EP3625807 A4 EP 3625807A4 EP 17910333 A EP17910333 A EP 17910333A EP 3625807 A4 EP3625807 A4 EP 3625807A4
Authority
EP
European Patent Office
Prior art keywords
hot
deformed magnet
preparing
deformed
magnet
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
EP17910333.8A
Other languages
German (de)
French (fr)
Other versions
EP3625807B1 (en
EP3625807A1 (en
Inventor
Xin TANG
Hossein SEPEHRI-AMIN
Tadaktsu OHKUBO
Kazuhiro Hono
Jiaqing Yu
Bicheng Chen
Witold Pieper
Juergen Oberle
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.)
Robert Bosch GmbH
National Institute for Materials Science
Original Assignee
Robert Bosch GmbH
National Institute for Materials Science
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 Robert Bosch GmbH, National Institute for Materials Science filed Critical Robert Bosch GmbH
Publication of EP3625807A1 publication Critical patent/EP3625807A1/en
Publication of EP3625807A4 publication Critical patent/EP3625807A4/en
Application granted granted Critical
Publication of EP3625807B1 publication Critical patent/EP3625807B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01F1/0576—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 pressed, e.g. hot working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
EP17910333.8A 2017-05-19 2017-05-19 Hot deformed magnet, and a method for preparing said hot deformed magnet Active EP3625807B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/085072 WO2018209681A1 (en) 2017-05-19 2017-05-19 Hot deformed magnet, and a method for preparing said hot deformed magnet

Publications (3)

Publication Number Publication Date
EP3625807A1 EP3625807A1 (en) 2020-03-25
EP3625807A4 true EP3625807A4 (en) 2020-06-17
EP3625807B1 EP3625807B1 (en) 2021-03-24

Family

ID=64273192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17910333.8A Active EP3625807B1 (en) 2017-05-19 2017-05-19 Hot deformed magnet, and a method for preparing said hot deformed magnet

Country Status (4)

Country Link
EP (1) EP3625807B1 (en)
JP (1) JP6865857B2 (en)
CN (1) CN110753978B (en)
WO (1) WO2018209681A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110060834B (en) * 2019-05-16 2021-06-08 常州威斯双联科技有限公司 Soft magnetic alloy powder, wave absorbing plate, preparation method of soft magnetic alloy powder, electronic component and electronic equipment
CN111326336B (en) * 2020-02-28 2021-06-22 大连理工大学 A preparation method of high coercivity rare earth permanent magnet integrating oscillating thermal deformation and infiltration
US12586700B2 (en) * 2021-02-08 2026-03-24 Korea Institute Of Materials Science Method for manufacturing anisotropic rare earth bulk magnet, and anisotropic rare earth bulk magnet manufactured thereby
CN115938771B (en) * 2021-11-05 2024-04-12 燕山大学 SmFe (zinc oxide) x M 12-x Preparation method of nanocrystalline permanent magnet material
CN117877826A (en) 2024-02-01 2024-04-12 烟台东星磁性材料股份有限公司 Neodymium-iron-boron magnet and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5211766A (en) * 1992-01-21 1993-05-18 General Motors Corporation Anisotropic neodymium-iron-boron permanent magnets formed at reduced hot working temperatures
US5395462A (en) * 1991-01-28 1995-03-07 Mitsubishi Materials Corporation Anisotropic rare earth-Fe-B system and rare earth-Fe-Co-B system magnet
FR2779267A1 (en) * 1998-05-28 1999-12-03 Rhodia Chimie Sa PROCESS FOR PREPARING A MAGNETIC MATERIAL BY FORGING AND MAGNETIC MATERIAL IN POWDER FORM
CN106448986A (en) * 2016-09-23 2017-02-22 四川大学 Anisotropic nanocrystalline rare earth permanent magnet and preparation method therefor

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JPH04143205A (en) * 1990-10-04 1992-05-18 Showa Denko Kk Manufacture of rare earth metal anisortopy permanent magnet powder
US5352301A (en) * 1992-11-20 1994-10-04 General Motors Corporation Hot pressed magnets formed from anisotropic powders
JPH10189320A (en) * 1996-12-25 1998-07-21 Daido Steel Co Ltd Anisotropic magnet alloy powder and method for producing the same
JPH11233323A (en) * 1998-02-13 1999-08-27 Daido Steel Co Ltd Method for producing anisotropic magnet material and method for producing bonded magnet using the same
US6302939B1 (en) * 1999-02-01 2001-10-16 Magnequench International, Inc. Rare earth permanent magnet and method for making same
WO2004013872A1 (en) * 2002-08-05 2004-02-12 Santoku Corporation Permanent magnet and process for producing the same
JP4730545B2 (en) * 2006-04-14 2011-07-20 信越化学工業株式会社 Method for producing rare earth permanent magnet material
CN102640238B (en) * 2009-12-09 2015-01-21 爱知制钢株式会社 Rare earth anisotropic magnet and process for production thereof
JP2011184730A (en) * 2010-03-08 2011-09-22 Tdk Corp Method for producing rare earth alloy powder and permanent magnet
CN101847487B (en) * 2010-06-30 2012-05-30 烟台正海磁性材料股份有限公司 Gradient coercive force neodymium iron boron magnet and production method thereof
JP5906874B2 (en) * 2011-03-28 2016-04-20 日立金属株式会社 Manufacturing method of RTB-based permanent magnet
JP5640946B2 (en) * 2011-10-11 2014-12-17 トヨタ自動車株式会社 Method for producing sintered body as rare earth magnet precursor
CN102436887B (en) * 2011-12-19 2015-05-27 钢铁研究总院 Anisotropic nano-crystalline composite permanent magnetic material and preparation method thereof
CN102610347B (en) * 2012-03-15 2016-03-16 江苏东瑞磁材科技有限公司 RE permanent magnetic alloy material and preparation technology thereof
CN102693799B (en) * 2012-06-12 2015-03-25 钢铁研究总院 Electromagnetically-solidified and hot-pressed nanocrystalline magnet of permanent magnet rapidly-quenched ribbon and preparation method of electromagnetically-solidified and hot-pressed nanocrystalline magnet
JP5752094B2 (en) * 2012-08-08 2015-07-22 ミネベア株式会社 Method for producing full-dense rare earth-iron bond magnet
CN103050267B (en) * 2012-12-31 2016-01-20 厦门钨业股份有限公司 A kind of based on fine powder heat treated sintered Nd-Fe-B based magnet manufacture method
JP2014170859A (en) * 2013-03-04 2014-09-18 Honda Motor Co Ltd Magnetic anisotropic magnet and manufacturing method thereof
CN104505207B (en) * 2014-12-15 2017-09-29 钢铁研究总院 Big L/D ratio radial hot pressing permanent-magnetic clamp and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395462A (en) * 1991-01-28 1995-03-07 Mitsubishi Materials Corporation Anisotropic rare earth-Fe-B system and rare earth-Fe-Co-B system magnet
US5211766A (en) * 1992-01-21 1993-05-18 General Motors Corporation Anisotropic neodymium-iron-boron permanent magnets formed at reduced hot working temperatures
FR2779267A1 (en) * 1998-05-28 1999-12-03 Rhodia Chimie Sa PROCESS FOR PREPARING A MAGNETIC MATERIAL BY FORGING AND MAGNETIC MATERIAL IN POWDER FORM
CN106448986A (en) * 2016-09-23 2017-02-22 四川大学 Anisotropic nanocrystalline rare earth permanent magnet and preparation method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018209681A1 *

Also Published As

Publication number Publication date
JP6865857B2 (en) 2021-04-28
EP3625807B1 (en) 2021-03-24
JP2020520414A (en) 2020-07-09
CN110753978A (en) 2020-02-04
CN110753978B (en) 2021-09-28
EP3625807A1 (en) 2020-03-25
WO2018209681A1 (en) 2018-11-22

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