DE60044816D1 - Pulver für herstellung eines r-fe-b-verbundmagnets, korrosionsfeste r-fe-b-verbundmagnet und herstellungsverfahren dafür - Google Patents

Pulver für herstellung eines r-fe-b-verbundmagnets, korrosionsfeste r-fe-b-verbundmagnet und herstellungsverfahren dafür

Info

Publication number
DE60044816D1
DE60044816D1 DE60044816T DE60044816T DE60044816D1 DE 60044816 D1 DE60044816 D1 DE 60044816D1 DE 60044816 T DE60044816 T DE 60044816T DE 60044816 T DE60044816 T DE 60044816T DE 60044816 D1 DE60044816 D1 DE 60044816D1
Authority
DE
Germany
Prior art keywords
production
composite magnet
corrosion
resistant
powder
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.)
Expired - Lifetime
Application number
DE60044816T
Other languages
English (en)
Inventor
Takashi Ikegami
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.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of DE60044816D1 publication Critical patent/DE60044816D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F1/06—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
    • 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
    • H01F1/0578—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
    • 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
    • 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
    • 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
    • H01F41/026—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 protecting methods against environmental influences, e.g. oxygen, by surface treatment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)
DE60044816T 1999-09-09 2000-06-12 Pulver für herstellung eines r-fe-b-verbundmagnets, korrosionsfeste r-fe-b-verbundmagnet und herstellungsverfahren dafür Expired - Lifetime DE60044816D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP25510999 1999-09-09
JP2000072568 2000-03-15
JP2000110599 2000-04-12
PCT/JP2000/003816 WO2001020620A1 (fr) 1999-09-09 2000-06-12 AIMANT LIE DE R-Fe-B RESISTANT A LA CORROSION, POUDRE DE FORMATION D'AIMANT LIE DE R-Fe-B ET LEUR PROCEDE DE PREPARATION

Publications (1)

Publication Number Publication Date
DE60044816D1 true DE60044816D1 (de) 2010-09-23

Family

ID=27334402

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60044816T Expired - Lifetime DE60044816D1 (de) 1999-09-09 2000-06-12 Pulver für herstellung eines r-fe-b-verbundmagnets, korrosionsfeste r-fe-b-verbundmagnet und herstellungsverfahren dafür

Country Status (7)

Country Link
US (2) US6764607B1 (de)
EP (1) EP1220241B1 (de)
JP (1) JP3645524B2 (de)
KR (1) KR100420851B1 (de)
CN (1) CN1171248C (de)
DE (1) DE60044816D1 (de)
WO (1) WO2001020620A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100517642B1 (ko) * 2002-10-25 2005-09-29 한국과학기술연구원 Ｐｒ－Ｆｅ－Ｂ계 자성분말 조성물 및 그 제조방법
JP4433800B2 (ja) * 2003-01-10 2010-03-17 日立金属株式会社 耐酸化性希土類系磁石粉末およびその製造方法
JP4433801B2 (ja) * 2003-06-11 2010-03-17 日立金属株式会社 耐酸化性希土類系磁石粉末およびその製造方法
JP4605013B2 (ja) * 2003-08-12 2011-01-05 日立金属株式会社 Ｒ−ｔ−ｂ系焼結磁石および希土類合金
US7781932B2 (en) 2007-12-31 2010-08-24 General Electric Company Permanent magnet assembly and method of manufacturing same
CN102725806A (zh) * 2009-03-17 2012-10-10 马格内昆茨国际公司 磁性材料
CN102166873A (zh) * 2010-02-26 2011-08-31 比亚迪股份有限公司 一种具有涂层的钕铁硼磁钢及其制备方法
CN102982995A (zh) * 2012-12-17 2013-03-20 湖南航天工业总公司 一种粘结钕铁硼磁体的微波固化工艺
KR101891775B1 (ko) * 2017-08-11 2018-08-24 동부전자소재 주식회사 내식성이 강화된 연자성 코어 및 이의 제조방법
JP7087830B2 (ja) * 2018-03-22 2022-06-21 日立金属株式会社 Ｒ－ｔ－ｂ系焼結磁石の製造方法
KR102412473B1 (ko) 2018-08-24 2022-06-22 주식회사 엘지화학 자석 분말의 제조 방법 및 자석 분말
US20220157520A1 (en) * 2020-11-18 2022-05-19 Nichia Corporation Compound for bonded magnet, bonded magnet, method of producing same, and resin composition for bonded magnets
CN112259359B (zh) * 2020-12-22 2021-03-19 北京中科三环高技术股份有限公司 烧结钕铁硼磁体及其防腐蚀处理方法
CN118125491B (zh) * 2024-05-06 2024-08-13 赣州湛海新材料科技有限公司 一种超细稀土氧化物粉末的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132107A (ja) * 1987-03-31 1989-05-24 Seiko Epson Corp 希土類磁石
DE3850001T2 (de) * 1987-08-19 1994-11-03 Mitsubishi Materials Corp Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren.
US5300156A (en) * 1990-07-24 1994-04-05 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Bonded rare earth magnet and a process for manufacturing the same
JPH04127405A (ja) * 1990-09-18 1992-04-28 Kanegafuchi Chem Ind Co Ltd 高耐蝕性永久磁石及びその製造方法並びに高耐蝕性ボンド磁石の製造方法
JPH04324910A (ja) 1991-04-25 1992-11-13 Seiko Epson Corp 希土類樹脂結合型磁石
US6074492A (en) * 1997-12-30 2000-06-13 Magnequench International, Inc. Bonded Nd-Fe-B magnets without volumetric expansion defects
US6136100A (en) * 1999-09-29 2000-10-24 Magnequench International, Inc. Rare-earth alloy powders for magnets and process for making magnets from rare-earth alloy powders

Also Published As

Publication number Publication date
US20040216811A1 (en) 2004-11-04
KR20020077868A (ko) 2002-10-14
WO2001020620A1 (fr) 2001-03-22
JP3645524B2 (ja) 2005-05-11
CN1171248C (zh) 2004-10-13
US6764607B1 (en) 2004-07-20
EP1220241A1 (de) 2002-07-03
EP1220241A4 (de) 2006-10-11
KR100420851B1 (ko) 2004-03-02
EP1220241B1 (de) 2010-08-11
CN1373894A (zh) 2002-10-09

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