JP2024092719A - Ｒ－ｔ－ｂ系永久磁石 - Google Patents

Ｒ－ｔ－ｂ系永久磁石 Download PDF

Info

Publication number
JP2024092719A
JP2024092719A JP2022208847A JP2022208847A JP2024092719A JP 2024092719 A JP2024092719 A JP 2024092719A JP 2022208847 A JP2022208847 A JP 2022208847A JP 2022208847 A JP2022208847 A JP 2022208847A JP 2024092719 A JP2024092719 A JP 2024092719A
Authority
JP
Japan
Prior art keywords
mass
content
less
permanent magnet
rare earth
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.)
Pending
Application number
JP2022208847A
Other languages
English (en)
Japanese (ja)
Other versions
JP2024092719A5 (https=
Inventor
敦 古田
Atsushi Furuta
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP2022208847A priority Critical patent/JP2024092719A/ja
Priority to US18/394,227 priority patent/US12592330B2/en
Priority to EP23219884.6A priority patent/EP4394811A1/en
Priority to CN202311790683.0A priority patent/CN118262986A/zh
Publication of JP2024092719A publication Critical patent/JP2024092719A/ja
Publication of JP2024092719A5 publication Critical patent/JP2024092719A5/ja
Pending legal-status Critical Current

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
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hard Magnetic Materials (AREA)
JP2022208847A 2022-12-26 2022-12-26 Ｒ－ｔ－ｂ系永久磁石 Pending JP2024092719A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2022208847A JP2024092719A (ja) 2022-12-26 2022-12-26 Ｒ－ｔ－ｂ系永久磁石
US18/394,227 US12592330B2 (en) 2022-12-26 2023-12-22 R-T-B based permanent magnet
EP23219884.6A EP4394811A1 (en) 2022-12-26 2023-12-22 R-t-b based permanent magnet
CN202311790683.0A CN118262986A (zh) 2022-12-26 2023-12-25 R-t-b系永久磁铁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022208847A JP2024092719A (ja) 2022-12-26 2022-12-26 Ｒ－ｔ－ｂ系永久磁石

Publications (2)

Publication Number Publication Date
JP2024092719A true JP2024092719A (ja) 2024-07-08
JP2024092719A5 JP2024092719A5 (https=) 2025-11-06

Family

ID=89321596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022208847A Pending JP2024092719A (ja) 2022-12-26 2022-12-26 Ｒ－ｔ－ｂ系永久磁石

Country Status (4)

Country Link
US (1) US12592330B2 (https=)
EP (1) EP4394811A1 (https=)
JP (1) JP2024092719A (https=)
CN (1) CN118262986A (https=)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9350203B2 (en) * 2010-03-30 2016-05-24 Tdk Corporation Rare earth sintered magnet, method for producing the same, motor, and automobile
JP2012023190A (ja) 2010-07-14 2012-02-02 Toyota Motor Corp 異方性希土類磁石の製造方法
JP5572673B2 (ja) * 2011-07-08 2014-08-13 昭和電工株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石用合金、ｒ−ｔ−ｂ系希土類焼結磁石用合金の製造方法、ｒ−ｔ−ｂ系希土類焼結磁石用合金材料、ｒ−ｔ−ｂ系希土類焼結磁石、ｒ−ｔ−ｂ系希土類焼結磁石の製造方法およびモーター
JP6303480B2 (ja) 2013-03-28 2018-04-04 Tdk株式会社 希土類磁石
WO2016121790A1 (ja) 2015-01-27 2016-08-04 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
CN108154987B (zh) * 2016-12-06 2020-09-01 Tdk株式会社 R-t-b系永久磁铁
JP7435134B2 (ja) 2020-03-26 2024-02-21 株式会社プロテリアル Ｒ－ｔ－ｂ系焼結磁石の製造方法
CN111524674A (zh) * 2020-04-30 2020-08-11 福建省长汀金龙稀土有限公司 一种钕铁硼磁体材料、原料组合物及制备方法、应用
CN111540557B (zh) * 2020-04-30 2021-11-05 福建省长汀金龙稀土有限公司 一种钕铁硼磁体材料、原料组合物及制备方法、应用

Also Published As

Publication number Publication date
EP4394811A1 (en) 2024-07-03
US20240212896A1 (en) 2024-06-27
CN118262986A (zh) 2024-06-28
US12592330B2 (en) 2026-03-31

Similar Documents

Publication Publication Date Title
JP7588618B2 (ja) Ｒ－ｔ－ｂ系永久磁石
JP6729446B2 (ja) Ｒ−ｔ−ｂ系永久磁石
JP2015204390A (ja) 永久磁石およびモータ
JP7379837B2 (ja) Ｒ－ｔ－ｂ系永久磁石
JP2016152246A (ja) 希土類系永久磁石
JP2016154219A (ja) 希土類系永久磁石
JP2009302318A (ja) ＲＬ−ＲＨ−Ｔ−Ｍｎ−Ｂ系焼結磁石
JP2017076680A (ja) Ｒ−ｔ−ｂ系焼結磁石およびモータ
JP4951703B2 (ja) Ｒ−ｔ−ｂ系希土類永久磁石用合金材料、ｒ−ｔ−ｂ系希土類永久磁石の製造方法およびモーター
JP5743458B2 (ja) Ｒ−ｔ−ｂ系希土類永久磁石用合金材料、ｒ−ｔ−ｂ系希土類永久磁石の製造方法およびモーター
JP7463791B2 (ja) Ｒ－ｔ－ｂ系希土類焼結磁石およびｒ－ｔ－ｂ系希土類焼結磁石の製造方法
JP6623998B2 (ja) Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP4534553B2 (ja) Ｒ−ｔ−ｂ系焼結磁石及びその製造方法
US11244778B2 (en) R-T-B based permanent magnet
US12592330B2 (en) R-T-B based permanent magnet
JP2022008212A (ja) Ｒ－ｔ－ｂ系永久磁石およびモータ
JP7664039B2 (ja) Ｒ－ｔ－ｂ系永久磁石
JP4556727B2 (ja) 希土類焼結磁石の製造方法
JP7315889B2 (ja) Ｒ－ｔ－ｂ系永久磁石用合金およびｒ－ｔ－ｂ系永久磁石の製造方法
JP7408921B2 (ja) Ｒ－ｔ－ｂ系永久磁石
JP7476601B2 (ja) Ｒ－ｔ－ｂ系焼結磁石の製造方法
WO2023080169A1 (ja) Ｒ－ｔ－ｂ系永久磁石
WO2023080171A1 (ja) Ｒ－ｔ－ｂ系永久磁石
CN121938740A (zh) R-t-b系永久磁体及其制造方法
CN121938741A (zh) R-t-b系永久磁体

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20251027

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20251027