JP7576862B2 - Ｎｄ－Ｆｅ－Ｂ積層焼結磁石およびその製造方法 - Google Patents

Ｎｄ－Ｆｅ－Ｂ積層焼結磁石およびその製造方法 Download PDF

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JP7576862B2
JP7576862B2 JP2022578247A JP2022578247A JP7576862B2 JP 7576862 B2 JP7576862 B2 JP 7576862B2 JP 2022578247 A JP2022578247 A JP 2022578247A JP 2022578247 A JP2022578247 A JP 2022578247A JP 7576862 B2 JP7576862 B2 JP 7576862B2
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sintered
magnets
magnet
laminated
thin plate
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JPWO2022163407A1 (https=
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眞人 佐川
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NDFEB CORPORATION
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
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    • 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
    • B22F3/004—Filling molds with powder
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    • 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
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    • 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
    • B22F3/10—Sintering only
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    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/006—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of flat products, e.g. sheets
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    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
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    • C—CHEMISTRY; METALLURGY
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    • H—ELECTRICITY
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    • 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
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    • 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
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    • 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
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    • H01F1/0578—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 bonded together
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    • 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
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    • 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
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    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • B22F2007/042—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
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  • Mechanical Engineering (AREA)
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  • Materials Engineering (AREA)
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  • Metallurgy (AREA)
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  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
JP2022578247A 2021-01-26 2022-01-17 Ｎｄ－Ｆｅ－Ｂ積層焼結磁石およびその製造方法 Active JP7576862B2 (ja)

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PCT/JP2022/001412 WO2022163407A1 (ja) 2021-01-26 2022-01-17 Ｎｄ－Ｆｅ－Ｂ積層焼結磁石およびその製造方法

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US (1) US20240079179A1 (https=)
EP (1) EP4287226A4 (https=)
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KR (1) KR102721666B1 (https=)
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WO (1) WO2022163407A1 (https=)

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JP2024016680A (ja) * 2022-07-26 2024-02-07 Ｎｄｆｅｂ株式会社 ネオジム積層焼結磁石
CN115775678B (zh) * 2022-11-14 2025-11-04 中钢天源股份有限公司 一种提高钕铁硼永磁材料厚产品内禀矫顽力的方法
CN116721860B (zh) * 2023-08-08 2023-12-08 乳源瑶族自治县力强磁铁制品有限公司 一种钕铁硼电机磁体生产用烧结工艺及专用设备
WO2025057756A1 (ja) * 2023-09-11 2025-03-20 日本特殊陶業株式会社 積層磁石及びモーター
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JP2025039994A (ja) * 2023-09-11 2025-03-24 日本特殊陶業株式会社 積層磁石及びモーター
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