DE3786719D1 - Seltenerdmagnet und seltenerdlegierung-magnetpulver mit grossem korrosionswiderstand. - Google Patents

Seltenerdmagnet und seltenerdlegierung-magnetpulver mit grossem korrosionswiderstand.

Info

Publication number
DE3786719D1
DE3786719D1 DE8787111257T DE3786719T DE3786719D1 DE 3786719 D1 DE3786719 D1 DE 3786719D1 DE 8787111257 T DE8787111257 T DE 8787111257T DE 3786719 T DE3786719 T DE 3786719T DE 3786719 D1 DE3786719 D1 DE 3786719D1
Authority
DE
Germany
Prior art keywords
rare
corrosion resistance
magnetic powder
magnet
earth alloy
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
DE8787111257T
Other languages
English (en)
Other versions
DE3786719T2 (de
Inventor
Setsuo Sumitomo Speci Fujimura
Masato Sumitomo Special Sagawa
Hitoshi Sumitomo Spec Yamamoto
Satoshi Sumitomo Spec Hirosawa
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals Co 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
Priority claimed from JP61182998A external-priority patent/JPH0668144B2/ja
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Application granted granted Critical
Publication of DE3786719D1 publication Critical patent/DE3786719D1/de
Publication of DE3786719T2 publication Critical patent/DE3786719T2/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
    • H01F1/047—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
    • 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
    • H01F1/0572—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 with a protective layer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
DE19873786719 1986-08-04 1987-08-04 Seltenerdmagnet und Seltenerdlegierung-Magnetpulver mit grossem Korrosionswiderstand. Expired - Lifetime DE3786719T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61182998A JPH0668144B2 (ja) 1986-08-04 1986-08-04 耐食性のすぐれた希土類磁石材料
US90173686A 1986-08-29 1986-08-29

Publications (2)

Publication Number Publication Date
DE3786719D1 true DE3786719D1 (de) 1993-09-02
DE3786719T2 DE3786719T2 (de) 1993-12-09

Family

ID=26501584

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873786719 Expired - Lifetime DE3786719T2 (de) 1986-08-04 1987-08-04 Seltenerdmagnet und Seltenerdlegierung-Magnetpulver mit grossem Korrosionswiderstand.

Country Status (4)

Country Link
EP (1) EP0255939B1 (de)
CN (1) CN1051865C (de)
CA (1) CA1336866C (de)
DE (1) DE3786719T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740157A1 (de) * 1987-11-26 1989-06-08 Max Planck Gesellschaft Sintermagnet auf basis von fe-nd-b
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same
JPH04337604A (ja) * 1991-05-14 1992-11-25 Seiko Instr Inc 希土類鉄系永久磁石
CN1066280C (zh) * 1993-04-16 2001-05-23 同和矿业株式会社 耐氧化性能优良的永久磁铁合金
EP0886284B1 (de) * 1996-04-10 2002-10-23 Showa Denko Kabushiki Kaisha Gusslegierung für die Herstellung von Dauermagneten mit seltenen Erden und Verfahren zur Herstellung dieser Legierung und dieser Dauermagneten
JP2001332410A (ja) * 2000-05-22 2001-11-30 Seiko Epson Corp 磁石粉末、磁石粉末の製造方法およびボンド磁石
KR100771676B1 (ko) 2000-10-04 2007-10-31 가부시키가이샤 네오맥스 희토류 소결자석 및 그 제조방법
RU2367045C2 (ru) 2004-10-19 2009-09-10 Син-Эцу Кемикал Ко., Лтд. Получение материала редкоземельного постоянного магнита
CN101026034B (zh) * 2006-02-22 2010-05-12 南京理工大学 一种耐腐蚀稀土永磁材料的制备方法
JP4656323B2 (ja) 2006-04-14 2011-03-23 信越化学工業株式会社 希土類永久磁石材料の製造方法
US7955443B2 (en) 2006-04-14 2011-06-07 Shin-Etsu Chemical Co., Ltd. Method for preparing rare earth permanent magnet material
JP4753030B2 (ja) * 2006-04-14 2011-08-17 信越化学工業株式会社 希土類永久磁石材料の製造方法
JP4840606B2 (ja) 2006-11-17 2011-12-21 信越化学工業株式会社 希土類永久磁石の製造方法
MY149353A (en) 2007-03-16 2013-08-30 Shinetsu Chemical Co Rare earth permanent magnet and its preparations
EP2110823B1 (de) * 2007-05-30 2017-03-01 Shin-Etsu Chemical Co., Ltd. Prozess zur herstellung eines hochantikorrosiven seltenerd-permanentmagneten und benutzungsverfahren dafür
JP5303738B2 (ja) * 2010-07-27 2013-10-02 Ｔｄｋ株式会社 希土類焼結磁石
CN105599382A (zh) * 2015-12-23 2016-05-25 常熟市东方特种金属材料厂 复合抗氧化特种金属材料

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6034005A (ja) * 1983-08-04 1985-02-21 Sumitomo Special Metals Co Ltd 永久磁石
JPS6148904A (ja) * 1984-08-16 1986-03-10 Hitachi Metals Ltd 永久磁石の製造方法
US4859254A (en) * 1985-09-10 1989-08-22 Kabushiki Kaisha Toshiba Permanent magnet
JPH07105289B2 (ja) * 1986-03-06 1995-11-13 信越化学工業株式会社 希土類永久磁石の製造方法

Also Published As

Publication number Publication date
CN1051865C (zh) 2000-04-26
DE3786719T2 (de) 1993-12-09
CN87106209A (zh) 1988-04-27
EP0255939A2 (de) 1988-02-17
EP0255939A3 (en) 1989-05-31
CA1336866C (en) 1995-09-05
EP0255939B1 (de) 1993-07-28

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