EP2436016A4 - Nd-fe-b permanent magnetic material and preparation method thereof - Google Patents

Nd-fe-b permanent magnetic material and preparation method thereof

Info

Publication number
EP2436016A4
EP2436016A4 EP10780039A EP10780039A EP2436016A4 EP 2436016 A4 EP2436016 A4 EP 2436016A4 EP 10780039 A EP10780039 A EP 10780039A EP 10780039 A EP10780039 A EP 10780039A EP 2436016 A4 EP2436016 A4 EP 2436016A4
Authority
EP
European Patent Office
Prior art keywords
preparation
magnetic material
permanent magnetic
permanent
magnetic
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
EP10780039A
Other languages
German (de)
French (fr)
Other versions
EP2436016B1 (en
EP2436016A1 (en
Inventor
Qing Gong
Zhiqiang Zhang
Surong Zhang
Xin Du
Xiaofeng Cheng
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.)
BYD Co Ltd
Original Assignee
BYD 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 BYD Co Ltd filed Critical BYD Co Ltd
Publication of EP2436016A1 publication Critical patent/EP2436016A1/en
Publication of EP2436016A4 publication Critical patent/EP2436016A4/en
Application granted granted Critical
Publication of EP2436016B1 publication Critical patent/EP2436016B1/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
    • H01F1/0577—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
    • 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
    • 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
    • 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
    • H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
EP10780039.3A 2009-05-27 2010-05-17 Nd-fe-b permanent magnetic material and preparation method thereof Active EP2436016B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009101076492A CN101901657B (en) 2009-05-27 2009-05-27 Sintered NdFeB (neodymium iron boron) permanent magnet material and preparation method thereof
PCT/CN2010/072854 WO2010135958A1 (en) 2009-05-27 2010-05-17 Nd-fe-b permanent magnetic material and preparation method thereof

Publications (3)

Publication Number Publication Date
EP2436016A1 EP2436016A1 (en) 2012-04-04
EP2436016A4 true EP2436016A4 (en) 2012-10-31
EP2436016B1 EP2436016B1 (en) 2017-03-29

Family

ID=43222156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10780039.3A Active EP2436016B1 (en) 2009-05-27 2010-05-17 Nd-fe-b permanent magnetic material and preparation method thereof

Country Status (4)

Country Link
US (1) US20120058003A1 (en)
EP (1) EP2436016B1 (en)
CN (1) CN101901657B (en)
WO (1) WO2010135958A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101853723B (en) 2009-03-31 2012-11-21 比亚迪股份有限公司 Composite magnetic material and preparation method thereof
CN102228760A (en) * 2011-06-29 2011-11-02 无锡光旭新材料科技有限公司 Permanent magnet filter stick and method for preparing permanent magnet material thereof
CN102510176B (en) * 2011-11-04 2014-11-26 无锡天宝电机有限公司 Preparation method of heat-proof Nd-Fe-B permanent magnet for motor
CN102361359B (en) * 2011-11-04 2015-02-11 无锡天宝电机有限公司 Corrosion-resistant neodymium iron boron permanent magnet for motor
CN102969111B (en) * 2012-11-30 2015-09-30 钢铁研究总院 Low-cost high-resistivity cerium magnet and preparation method thereof
CN102976738A (en) * 2012-12-20 2013-03-20 南通万宝磁石制造有限公司 Process for manufacturing permanent magnetic ferrite with high compression strength
CN105499557A (en) * 2016-01-28 2016-04-20 河南中硬合金有限公司 Hard alloy large-product holding-up hammer multi-component forming agent and preparation method
CN105957674B (en) * 2016-05-13 2018-09-14 桂林电子科技大学 A kind of Nd-Ce-Pr-Fe-B alloy thin band permanent-magnet materials of high-coercive force and preparation method thereof
CN106373688B (en) * 2016-08-31 2019-03-29 浙江东阳东磁稀土有限公司 A method of preparing rare earth permanent-magnetic material
RU2642508C1 (en) * 2016-11-21 2018-01-25 федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский ядерный университет "МИФИ" (НИЯУ МИФИ) METHOD FOR PRODUCING HIGH-COERCIVITY MAGNETS FROM ALLOYS ON BASIS OF Nd-Fe-B
CN106747392B (en) * 2017-03-03 2019-12-06 中国地质大学（北京） Preparation method of Ho/Co composite doped Ni-Zn ferrite ceramic
CN107931621A (en) * 2017-11-16 2018-04-20 浙江中杭新材料科技有限公司 The preparation method of high temperature resistant synchronous motor magnet steel
CN107931598A (en) * 2017-11-16 2018-04-20 浙江中杭新材料科技有限公司 The preparation method of hybrid exciting synchronous motor magnet steel
RU2690867C1 (en) * 2018-12-13 2019-06-06 Акционерное общество "Научно-производственное объединение "Магнетон" Mixture for producing thermostable magnetic alloys with rare-earth metals based on nd-fe-b system
CN110491614B (en) * 2019-08-21 2022-06-24 南通成泰磁材科技有限公司 Magnetic material with high compressive strength and preparation method thereof
CN110571008A (en) * 2019-09-27 2019-12-13 江苏南方永磁科技有限公司 Magnetic composite material and preparation method thereof
CN110534281A (en) * 2019-09-27 2019-12-03 江苏南方永磁科技有限公司 A kind of permanent-magnet material and preparation method thereof
CN112750586B (en) * 2020-12-28 2024-03-29 包头稀土研究院 Mixed rare earth sintered NdFeB permanent magnet and preparation method thereof
CN112863844A (en) * 2021-03-24 2021-05-28 陈凯华 Preparation process of corrosion-resistant neodymium iron boron magnet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164205A (en) * 2000-09-12 2002-06-07 Hitachi Metals Ltd Composite bonded magnet, rotating machine, and magnet roll
JP2005159054A (en) * 2003-11-26 2005-06-16 Tdk Corp Method of manufacturing r-t-b-based permanent magnet
WO2009057742A1 (en) * 2007-11-02 2009-05-07 Asahi Kasei Kabushiki Kaisha Composite magnetic material for magnet and method for manufacturing such material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3604853B2 (en) * 1996-03-29 2004-12-22 株式会社Ｎｅｏｍａｘ Manufacturing method of anisotropic bonded magnet
US6721144B2 (en) * 2001-01-04 2004-04-13 International Business Machines Corporation Spin valves with co-ferrite pinning layer
US8465453B2 (en) * 2003-12-03 2013-06-18 Mayo Foundation For Medical Education And Research Kits, apparatus and methods for magnetically coating medical devices with living cells
CN100356487C (en) * 2005-06-06 2007-12-19 浙江大学 Method for increasing sintering Nd-Fe-B coercive force by adding nano-oxide in crystal boundary phase

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164205A (en) * 2000-09-12 2002-06-07 Hitachi Metals Ltd Composite bonded magnet, rotating machine, and magnet roll
JP2005159054A (en) * 2003-11-26 2005-06-16 Tdk Corp Method of manufacturing r-t-b-based permanent magnet
WO2009057742A1 (en) * 2007-11-02 2009-05-07 Asahi Kasei Kabushiki Kaisha Composite magnetic material for magnet and method for manufacturing such material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010135958A1 *

Also Published As

Publication number Publication date
EP2436016B1 (en) 2017-03-29
CN101901657A (en) 2010-12-01
US20120058003A1 (en) 2012-03-08
EP2436016A1 (en) 2012-04-04
WO2010135958A1 (en) 2010-12-02
CN101901657B (en) 2012-06-20

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