CN116762147A - Nd－Fe－B层叠烧结磁体及其制造方法 - Google Patents

Nd－Fe－B层叠烧结磁体及其制造方法 Download PDF

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Publication number
CN116762147A
CN116762147A CN202280010037.5A CN202280010037A CN116762147A CN 116762147 A CN116762147 A CN 116762147A CN 202280010037 A CN202280010037 A CN 202280010037A CN 116762147 A CN116762147 A CN 116762147A
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Prior art keywords
laminated
magnet
sintered magnet
thin plate
sintered
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CN202280010037.5A
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Chinese (zh)
Inventor
佐川真人
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Ndfeb Corp
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Ndfeb Corp
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    • 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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    • 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
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    • 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
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    • B22F7/08—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 workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C—ALLOYS
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    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
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    • 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
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  • Engineering & Computer Science (AREA)
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  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • 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)
CN202280010037.5A 2021-01-26 2022-01-17 Nd－Fe－B层叠烧结磁体及其制造方法 Pending CN116762147A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021-010537 2021-01-26
JP2021010537 2021-01-26
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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CN116762147A true CN116762147A (zh) 2023-09-15

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US (1) US20240079179A1 (https=)
EP (1) EP4287226A4 (https=)
JP (1) JP7576862B2 (https=)
KR (1) KR102721666B1 (https=)
CN (1) CN116762147A (https=)
WO (1) WO2022163407A1 (https=)

Cited By (1)

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CN117444202A (zh) * 2023-11-23 2024-01-26 瑞声开泰科技(马鞍山)有限公司 填充成型模具及填充成型方法、烧结NdFeB磁体制备方法

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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
JP2025039991A (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
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
JP2025039995A (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
WO2025109656A1 (ja) * 2023-11-20 2025-05-30 Ｎｄｆｅｂ株式会社 ネオジム積層焼結磁石

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946008A (ja) 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd 永久磁石
JPH0479741A (ja) * 1990-07-23 1992-03-13 Seiko Epson Corp 永久磁石回転子
JPWO2001095460A1 (ja) * 2000-06-09 2004-01-15 住友特殊金属株式会社 一体化磁石体およびそれを組み込んだモーター
JP4391897B2 (ja) * 2004-07-01 2009-12-24 インターメタリックス株式会社 磁気異方性希土類焼結磁石の製造方法及び製造装置
BRPI0506147B1 (pt) 2004-10-19 2020-10-13 Shin-Etsu Chemical Co., Ltd método para preparar um material de ímã permanente de terra rara
JP4618553B2 (ja) * 2005-04-20 2011-01-26 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石の製造方法
JP4391980B2 (ja) 2005-11-07 2009-12-24 インターメタリックス株式会社 磁気異方性希土類焼結磁石の製造方法及び製造装置
JP5493663B2 (ja) 2009-10-01 2014-05-14 信越化学工業株式会社 Ｉｐｍ型永久磁石回転機用回転子の組立方法
JP2012019030A (ja) * 2010-07-07 2012-01-26 Toyota Motor Corp 焼結磁石の製造装置と製造方法
JP5411957B2 (ja) 2012-03-12 2014-02-12 日東電工株式会社 希土類永久磁石及び希土類永久磁石の製造方法
KR20150128960A (ko) * 2013-03-18 2015-11-18 인터메탈릭스 가부시키가이샤 RFeB계 소결 자석 제조 방법 및 RFeB계 소결 자석
JP6425251B2 (ja) 2013-07-24 2018-11-21 Ｎｄｆｅｂ株式会社 希土類焼結磁石製造法
JPWO2015121916A1 (ja) * 2014-02-12 2017-03-30 日東電工株式会社 永久磁石、永久磁石の製造方法、ｓｐｍモータ及びｓｐｍモータの製造方法
EP3200209B1 (en) * 2014-09-28 2019-12-11 NDFEB Corporation Method for manufacturing rare-earth sintered magnet, and manufacturing device used for said manufacturing method
JP7020051B2 (ja) * 2017-10-18 2022-02-16 Tdk株式会社 磁石接合体
JP1606420S (https=) 2017-12-25 2018-06-11
JP7099218B2 (ja) * 2018-03-29 2022-07-12 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
JP1662257S (https=) 2019-08-26 2020-06-22
JP1802487S (ja) 2024-06-07 2025-07-01 化粧用コンパクト
JP1818977S (https=) 2025-08-29 2026-02-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117444202A (zh) * 2023-11-23 2024-01-26 瑞声开泰科技(马鞍山)有限公司 填充成型模具及填充成型方法、烧结NdFeB磁体制备方法

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