CA2044171C - Corrosion-resistant rare earth metal-transition metal series magnets and method of producing the same - Google Patents

Corrosion-resistant rare earth metal-transition metal series magnets and method of producing the same Download PDF

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Publication number
CA2044171C
CA2044171C CA002044171A CA2044171A CA2044171C CA 2044171 C CA2044171 C CA 2044171C CA 002044171 A CA002044171 A CA 002044171A CA 2044171 A CA2044171 A CA 2044171A CA 2044171 C CA2044171 C CA 2044171C
Authority
CA
Canada
Prior art keywords
phase
series
re2tm14b
permanent magnet
mixture
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 - Fee Related
Application number
CA002044171A
Other languages
English (en)
French (fr)
Other versions
CA2044171A1 (en
Inventor
Yukiko Ozaki
Michio Shimotomai
Yasutaka Fukuda
Akira Fujita
Yoko Kitano
Junichi Shimomura
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of CA2044171A1 publication Critical patent/CA2044171A1/en
Application granted granted Critical
Publication of CA2044171C publication Critical patent/CA2044171C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
CA002044171A 1989-10-12 1990-10-11 Corrosion-resistant rare earth metal-transition metal series magnets and method of producing the same Expired - Fee Related CA2044171C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP263,946/89 1989-10-12
JP26394689 1989-10-12
JP335,028/89 1989-12-26
JP33502889 1989-12-26
JP2269635A JP2675430B2 (ja) 1989-10-12 1990-10-09 耐蝕性希土類―遷移金属系磁石およびその製造方法
JP269,635/90 1990-10-09
PCT/JP1990/001315 WO1991006107A1 (en) 1989-10-12 1990-10-11 Corrosion-resistant, rare earth-transition metal magnet and method of production thereof

Publications (2)

Publication Number Publication Date
CA2044171A1 CA2044171A1 (en) 1991-04-13
CA2044171C true CA2044171C (en) 2000-12-12

Family

ID=27335262

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002044171A Expired - Fee Related CA2044171C (en) 1989-10-12 1990-10-11 Corrosion-resistant rare earth metal-transition metal series magnets and method of producing the same

Country Status (6)

Country Link
EP (1) EP0447567B1 (de)
JP (1) JP2675430B2 (de)
KR (1) KR960013029B1 (de)
CA (1) CA2044171C (de)
DE (1) DE69027201T2 (de)
WO (1) WO1991006107A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69202515T2 (de) * 1991-06-04 1995-09-21 Shinetsu Chemical Co Verfahren zur Herstellung von zweiphasigen Dauermagneten auf der Basis von Seltenen Erden.
US5405455A (en) * 1991-06-04 1995-04-11 Shin-Etsu Chemical Co. Ltd. Rare earth-based permanent magnet
JP2782024B2 (ja) * 1992-01-29 1998-07-30 住友特殊金属株式会社 Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法
US5387291A (en) * 1992-03-19 1995-02-07 Sumitomo Special Metals Co., Ltd. Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor
CN1044940C (zh) * 1992-08-13 1999-09-01 Ybm麦格奈克斯公司 基于钕铁硼的生产永久磁铁的方法
EP0583041B1 (de) * 1992-08-13 1997-02-05 Koninklijke Philips Electronics N.V. Verfahren zum Herstellen eines Dauermagneten auf Basis von NdFeB
US5482575A (en) * 1992-12-08 1996-01-09 Ugimag Sa Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof
US7485193B2 (en) 2004-06-22 2009-02-03 Shin-Etsu Chemical Co., Ltd R-FE-B based rare earth permanent magnet material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261579B1 (de) * 1986-09-16 1993-01-07 Tokin Corporation Verfahren zur Herstellung eines Seltenerd-Eisen-Bor-Dauermagneten mit Hilfe eines abgeschreckten Legierungspuders
JP2700643B2 (ja) * 1987-04-11 1998-01-21 株式会社トーキン 耐酸化性に優れた希土類永久磁石の製造方法
JPH0621324B2 (ja) * 1986-10-04 1994-03-23 信越化学工業株式会社 希土類永久磁石合金用組成物
JPS63127505A (ja) * 1986-11-17 1988-05-31 Taiyo Yuden Co Ltd 磁石及びその製造方法
JPH063763B2 (ja) * 1986-12-26 1994-01-12 信越化学工業株式会社 希土類永久磁石の製造方法
JP2948223B2 (ja) * 1987-03-31 1999-09-13 住友特殊金属 株式会社 耐食性のすぐれた高性能永久磁石及びその製造方法
US5015307A (en) * 1987-10-08 1991-05-14 Kawasaki Steel Corporation Corrosion resistant rare earth metal magnet

Also Published As

Publication number Publication date
KR920701999A (ko) 1992-08-12
DE69027201D1 (de) 1996-07-04
CA2044171A1 (en) 1991-04-13
EP0447567A4 (en) 1992-05-20
EP0447567A1 (de) 1991-09-25
JP2675430B2 (ja) 1997-11-12
JPH03250607A (ja) 1991-11-08
EP0447567B1 (de) 1996-05-29
DE69027201T2 (de) 1996-10-10
WO1991006107A1 (en) 1991-05-02
KR960013029B1 (ko) 1996-09-25

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