JP7360052B2 - 異方性磁性粉末の製造方法および異方性磁性粉末 - Google Patents

異方性磁性粉末の製造方法および異方性磁性粉末 Download PDF

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JP7360052B2
JP7360052B2 JP2020106311A JP2020106311A JP7360052B2 JP 7360052 B2 JP7360052 B2 JP 7360052B2 JP 2020106311 A JP2020106311 A JP 2020106311A JP 2020106311 A JP2020106311 A JP 2020106311A JP 7360052 B2 JP7360052 B2 JP 7360052B2
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magnetic powder
particle size
temperature
oxide
acid
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JP2022002247A (ja
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永 前原
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Nichia Corp
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Nichia Corp
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Priority to JP2020106311A priority Critical patent/JP7360052B2/ja
Priority to EP21825385.4A priority patent/EP4170686A4/en
Priority to CN202180042448.8A priority patent/CN115699228A/zh
Priority to PCT/JP2021/022875 priority patent/WO2021256509A1/ja
Priority to US18/002,272 priority patent/US20230238161A1/en
Publication of JP2022002247A publication Critical patent/JP2022002247A/ja
Priority to JP2023095715A priority patent/JP2023123560A/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0235—Starting from compounds, e.g. oxides
    • 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
    • H01F1/06—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 in the form of particles, e.g. powder
    • H01F1/065—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 in the form of particles, e.g. powder obtained by a reduction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2304/00—Physical aspects of the powder
    • B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
JP2020106311A 2020-06-19 2020-06-19 異方性磁性粉末の製造方法および異方性磁性粉末 Active JP7360052B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2020106311A JP7360052B2 (ja) 2020-06-19 2020-06-19 異方性磁性粉末の製造方法および異方性磁性粉末
EP21825385.4A EP4170686A4 (en) 2020-06-19 2021-06-16 METHOD FOR PRODUCING AN ANISOTROPIC MAGNETIC POWDER AND ANISOTROPIC MAGNETIC POWDER
CN202180042448.8A CN115699228A (zh) 2020-06-19 2021-06-16 各向异性磁性粉末的制造方法及各向异性磁性粉末
PCT/JP2021/022875 WO2021256509A1 (ja) 2020-06-19 2021-06-16 異方性磁性粉末の製造方法および異方性磁性粉末
US18/002,272 US20230238161A1 (en) 2020-06-19 2021-06-16 Method for producing anisotropic magnetic powder, and anisotropic magnetic powder
JP2023095715A JP2023123560A (ja) 2020-06-19 2023-06-09 異方性磁性粉末の製造方法および異方性磁性粉末

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JP2020106311A JP7360052B2 (ja) 2020-06-19 2020-06-19 異方性磁性粉末の製造方法および異方性磁性粉末

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JP2022002247A JP2022002247A (ja) 2022-01-06
JP7360052B2 true JP7360052B2 (ja) 2023-10-12

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JP2023095715A Pending JP2023123560A (ja) 2020-06-19 2023-06-09 異方性磁性粉末の製造方法および異方性磁性粉末

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US (1) US20230238161A1 (https=)
EP (1) EP4170686A4 (https=)
JP (2) JP7360052B2 (https=)
CN (1) CN115699228A (https=)
WO (1) WO2021256509A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4417345A4 (en) * 2021-10-11 2025-11-19 Dowa Holdings Co Ltd SM-FE-N BASED MAGNETIC POWDER AND PROCESS FOR ITS MANUFACTURE
JPWO2025205182A1 (https=) * 2024-03-26 2025-10-02

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001044013A (ja) 1999-07-28 2001-02-16 Hitachi Metals Ltd 希土類−鉄−窒素系磁石材料の再生方法
JP2004031761A (ja) 2002-06-27 2004-01-29 Nichia Chem Ind Ltd 磁性粉末及びその表面処理方法
JP2011119487A (ja) 2009-12-04 2011-06-16 Nichia Corp 円柱状ボンド磁石
JP2015070102A (ja) 2013-09-28 2015-04-13 日亜化学工業株式会社 磁性粒子の製造方法、及び磁性粒子
JP2016032044A (ja) 2014-07-29 2016-03-07 国立研究開発法人産業技術総合研究所 窒化鉄粉末およびその製造方法
JP2017117937A (ja) 2015-12-24 2017-06-29 日亜化学工業株式会社 異方性磁性粉末およびその製造方法
JP2019112716A (ja) 2017-12-22 2019-07-11 日亜化学工業株式会社 異方性磁性粉末の製造方法
JP2020102606A (ja) 2018-12-19 2020-07-02 日亜化学工業株式会社 異方性磁性粉末の製造方法および異方性磁性粉末

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JP3383532B2 (ja) * 1996-12-20 2003-03-04 川崎製鉄株式会社 耐食性および磁気特性に優れた無方向性電磁鋼帯の製造方法
JPH11241104A (ja) * 1997-12-25 1999-09-07 Nichia Chem Ind Ltd Ｓｍ−Ｆｅ−Ｎ系合金粉末及びその製造方法
JPH11251123A (ja) * 1998-03-05 1999-09-17 Hitachi Metals Ltd 耐酸化性に富んだ希土類磁石用合金粉末およびその製造方法ならびにそれを用いた希土類焼結磁石
JP2005223263A (ja) * 2004-02-09 2005-08-18 Sumitomo Metal Mining Co Ltd 希土類永久磁石の製造方法及び得られた希土類永久磁石
JP2014122392A (ja) * 2012-12-21 2014-07-03 Sumitomo Metal Mining Co Ltd 希土類−鉄−窒素系磁石粉末の製造方法
WO2015198396A1 (ja) 2014-06-24 2015-12-30 日産自動車株式会社 希土類磁石成形体の製造方法
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Publication number Priority date Publication date Assignee Title
JP2001044013A (ja) 1999-07-28 2001-02-16 Hitachi Metals Ltd 希土類−鉄−窒素系磁石材料の再生方法
JP2004031761A (ja) 2002-06-27 2004-01-29 Nichia Chem Ind Ltd 磁性粉末及びその表面処理方法
JP2011119487A (ja) 2009-12-04 2011-06-16 Nichia Corp 円柱状ボンド磁石
JP2015070102A (ja) 2013-09-28 2015-04-13 日亜化学工業株式会社 磁性粒子の製造方法、及び磁性粒子
JP2016032044A (ja) 2014-07-29 2016-03-07 国立研究開発法人産業技術総合研究所 窒化鉄粉末およびその製造方法
JP2017117937A (ja) 2015-12-24 2017-06-29 日亜化学工業株式会社 異方性磁性粉末およびその製造方法
JP2019112716A (ja) 2017-12-22 2019-07-11 日亜化学工業株式会社 異方性磁性粉末の製造方法
JP2020102606A (ja) 2018-12-19 2020-07-02 日亜化学工業株式会社 異方性磁性粉末の製造方法および異方性磁性粉末

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WO2021256509A1 (ja) 2021-12-23
EP4170686A1 (en) 2023-04-26
EP4170686A4 (en) 2024-07-31
JP2022002247A (ja) 2022-01-06
CN115699228A (zh) 2023-02-03
JP2023123560A (ja) 2023-09-05
US20230238161A1 (en) 2023-07-27

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