ZA202005694B - A high-coercivity neodymium iron boron magnet and a preparation method thereof - Google Patents

A high-coercivity neodymium iron boron magnet and a preparation method thereof

Info

Publication number
ZA202005694B
ZA202005694B ZA2020/05694A ZA202005694A ZA202005694B ZA 202005694 B ZA202005694 B ZA 202005694B ZA 2020/05694 A ZA2020/05694 A ZA 2020/05694A ZA 202005694 A ZA202005694 A ZA 202005694A ZA 202005694 B ZA202005694 B ZA 202005694B
Authority
ZA
South Africa
Prior art keywords
preparation
iron boron
neodymium iron
boron magnet
coercivity neodymium
Prior art date
Application number
ZA2020/05694A
Other languages
English (en)
Inventor
Zhongwu Liu
Huixin Zeng
Qing Zhou
Hongya Yu
Xichun Zhong
Original Assignee
Univ South China Tech
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 Univ South China Tech filed Critical Univ South China Tech
Publication of ZA202005694B publication Critical patent/ZA202005694B/en

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
    • 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
    • H01F41/0293—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
ZA2020/05694A 2018-03-05 2020-09-14 A high-coercivity neodymium iron boron magnet and a preparation method thereof ZA202005694B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810178869.3A CN108565105A (zh) 2018-03-05 2018-03-05 一种高矫顽力钕铁硼磁体及其制备方法
PCT/CN2018/111930 WO2019169875A1 (zh) 2018-03-05 2018-10-25 一种高矫顽力钕铁硼磁体及其制备方法

Publications (1)

Publication Number Publication Date
ZA202005694B true ZA202005694B (en) 2022-03-30

Family

ID=63532318

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2020/05694A ZA202005694B (en) 2018-03-05 2020-09-14 A high-coercivity neodymium iron boron magnet and a preparation method thereof

Country Status (3)

Country Link
CN (1) CN108565105A (zh)
WO (1) WO2019169875A1 (zh)
ZA (1) ZA202005694B (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565105A (zh) * 2018-03-05 2018-09-21 华南理工大学 一种高矫顽力钕铁硼磁体及其制备方法
CN109585113A (zh) * 2018-11-30 2019-04-05 宁波韵升股份有限公司 一种烧结钕铁硼磁体的制备方法
CN109585106B (zh) * 2018-12-18 2021-04-06 宁波铄腾新材料有限公司 一种超大块稀土永磁体及其制备方法
CN111599561B (zh) * 2019-02-21 2021-12-14 有研稀土新材料股份有限公司 一种钕铁硼磁体及其制备方法
CN110133029B (zh) * 2019-03-29 2021-06-18 杭州电子科技大学 一种钕铁硼磁体中高通量设计晶界扩散物成分的方法
CN110767402B (zh) * 2019-11-06 2021-02-26 有研稀土新材料股份有限公司 一种异方性粘结磁粉及其制备方法
CN112820528A (zh) * 2020-05-06 2021-05-18 廊坊京磁精密材料有限公司 提高烧结钕铁硼矫顽力的方法
CN113808839B (zh) * 2021-08-23 2022-12-16 华南理工大学 一种利用宏观不均匀扩散制备高矫顽力钕铁硼磁体的方法
CN114864264B (zh) * 2022-05-16 2023-06-30 安徽吉华新材料有限公司 一种低重稀土高矫顽力稀土钕铁硼永磁体的制备工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103366944B (zh) * 2013-07-17 2016-08-10 宁波韵升股份有限公司 一种提高烧结钕铁硼磁体性能的方法
JP2016037611A (ja) * 2014-08-05 2016-03-22 住友金属鉱山株式会社 希土類−鉄−窒素系磁石粉末の製造方法及び希土類−鉄−窒素系磁石粉末
EP3193347A4 (en) * 2014-09-11 2018-05-23 Hitachi Metals, Ltd. Production method for r-t-b sintered magnet
CN104505247A (zh) * 2014-12-05 2015-04-08 华南理工大学 一种改善钕铁硼磁体性能的固体扩散工艺
JP6477723B2 (ja) * 2014-12-12 2019-03-06 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
CN106783124A (zh) * 2016-12-05 2017-05-31 华南理工大学 一种晶界扩散Al‑Cu合金提高钕铁硼磁体耐蚀性的方法
CN106887323A (zh) * 2017-03-07 2017-06-23 北京科技大学 一种晶界扩散制备高矫顽力钕铁硼磁体的方法
CN107424825A (zh) * 2017-07-21 2017-12-01 烟台首钢磁性材料股份有限公司 一种钕铁硼磁体矫顽力提高方法
CN108565105A (zh) * 2018-03-05 2018-09-21 华南理工大学 一种高矫顽力钕铁硼磁体及其制备方法

Also Published As

Publication number Publication date
WO2019169875A1 (zh) 2019-09-12
CN108565105A (zh) 2018-09-21

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