EP4152348C0 - Procédé de préparation d'un matériau d'aimant permanent néodyme-fer-bore haute performance sans terres rares lourdes - Google Patents

Procédé de préparation d'un matériau d'aimant permanent néodyme-fer-bore haute performance sans terres rares lourdes

Info

Publication number
EP4152348C0
EP4152348C0 EP20942024.9A EP20942024A EP4152348C0 EP 4152348 C0 EP4152348 C0 EP 4152348C0 EP 20942024 A EP20942024 A EP 20942024A EP 4152348 C0 EP4152348 C0 EP 4152348C0
Authority
EP
European Patent Office
Prior art keywords
iron
preparation
permanent magnet
rare earth
magnet material
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.)
Active
Application number
EP20942024.9A
Other languages
German (de)
English (en)
Other versions
EP4152348A1 (fr
EP4152348B1 (fr
EP4152348A4 (fr
Inventor
Jinhao Zhu
Bo Zheng
Guangfei Ding
Lei Jin
Zhehuan Jin
Shuai Guo
Renjie Chen
Aru Yan
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.)
Ningbo Institute of Material Technology and Engineering of CAS
Original Assignee
Ningbo Institute of Material Technology and Engineering of CAS
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 Ningbo Institute of Material Technology and Engineering of CAS filed Critical Ningbo Institute of Material Technology and Engineering of CAS
Publication of EP4152348A1 publication Critical patent/EP4152348A1/fr
Publication of EP4152348A4 publication Critical patent/EP4152348A4/fr
Application granted granted Critical
Publication of EP4152348C0 publication Critical patent/EP4152348C0/fr
Publication of EP4152348B1 publication Critical patent/EP4152348B1/fr
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
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
EP20942024.9A 2020-06-23 2020-06-23 Procédé de préparation d'un matériau d'aimant permanent néodyme-fer-bore haute performance sans terres rares lourdes Active EP4152348B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/097637 WO2021258280A1 (fr) 2020-06-23 2020-06-23 Matériau d'aimant permanent néodyme-fer-bore haute performance sans terres rares lourdes et son procédé de préparation

Publications (4)

Publication Number Publication Date
EP4152348A1 EP4152348A1 (fr) 2023-03-22
EP4152348A4 EP4152348A4 (fr) 2023-07-05
EP4152348C0 true EP4152348C0 (fr) 2024-05-08
EP4152348B1 EP4152348B1 (fr) 2024-05-08

Family

ID=79282656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20942024.9A Active EP4152348B1 (fr) 2020-06-23 2020-06-23 Procédé de préparation d'un matériau d'aimant permanent néodyme-fer-bore haute performance sans terres rares lourdes

Country Status (2)

Country Link
EP (1) EP4152348B1 (fr)
WO (1) WO2021258280A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117373767A (zh) * 2022-06-30 2024-01-09 浙江东阳东磁稀土有限公司 改性烧结钕铁硼永磁材料及其制备方法
CN118098740A (zh) * 2023-10-08 2024-05-28 江苏普隆磁电有限公司 一种钕铁硼磁性橡胶的制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393177B (de) * 1989-04-28 1991-08-26 Boehler Gmbh Permanentmagnet(-werkstoff) sowie verfahren zur herstellung desselben
US5143560A (en) * 1990-04-20 1992-09-01 Hitachi Metals, Inc., Ltd. Method for forming Fe-B-R-T alloy powder by hydrogen decrepitation of die-upset billets
CN101325109B (zh) * 2008-04-08 2010-09-08 浙江大学 晶界相重构的高强韧性烧结钕铁硼磁体及其制备方法
CN101740190B (zh) * 2008-11-26 2013-01-16 绵阳西磁磁电有限公司 一种高性价比高耐腐蚀性烧结钕铁硼磁体及制备方法
CN103632834B (zh) * 2013-12-03 2015-12-02 江苏大学 一种高性能各向异性钕铁硼磁体的制备方法
DE102017223268A1 (de) * 2017-12-19 2019-06-19 Robert Bosch Gmbh Verfahren zur Herstellung eines magnetischen Materials, magnetisches Material, Hartmagnet, Elektromotor, Starter und Generator
CN108987017A (zh) * 2018-07-23 2018-12-11 浙江东阳东磁稀土有限公司 一种无重稀土烧结钕铁硼
CN109545491B (zh) * 2019-01-29 2020-05-26 中国科学院宁波材料技术与工程研究所 一种钕铁硼永磁材料及其制备方法

Also Published As

Publication number Publication date
EP4152348A1 (fr) 2023-03-22
WO2021258280A1 (fr) 2021-12-30
EP4152348B1 (fr) 2024-05-08
EP4152348A4 (fr) 2023-07-05

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