JPS55154706A - Manufacture of rare earth element and cobalt material for permanent magnet - Google Patents

Manufacture of rare earth element and cobalt material for permanent magnet

Info

Publication number
JPS55154706A
JPS55154706A JP6235179A JP6235179A JPS55154706A JP S55154706 A JPS55154706 A JP S55154706A JP 6235179 A JP6235179 A JP 6235179A JP 6235179 A JP6235179 A JP 6235179A JP S55154706 A JPS55154706 A JP S55154706A
Authority
JP
Japan
Prior art keywords
permanent magnet
alloy
piece
substituted
cooled
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.)
Granted
Application number
JP6235179A
Other languages
Japanese (ja)
Other versions
JPS6245686B2 (en
Inventor
Yoshio Tawara
Tetsukazu Kayano
Takeshi Ohashi
Shiro Ishizaka
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical 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
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP6235179A priority Critical patent/JPS55154706A/en
Publication of JPS55154706A publication Critical patent/JPS55154706A/en
Publication of JPS6245686B2 publication Critical patent/JPS6245686B2/ja
Granted 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 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)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To make a permanent magnet of high performance and low cost from an alloy of prescribed composition in which Ce and Sm are jointly used, while a portion of Co is substituted by Fe and Zr and/or Ti is added. CONSTITUTION:Ce and Sm are jointly used, a portion of Co is substituted by Fe for heightening the residual magnetic flux density and Zr and/or Ti is added, thereby producing an alloy powder represented as Ce1-uSmu(Co1-x-y-wCuxFeyZrw)z where 0.05<=u<0.5, 0.09<=x<=0.14, 0.05<=y<=0.25, 0.03<=w<=0.0015 and 5.8<=z<= 6.8. A shaped piece of the alloy powder is sintered at 1100-1200 deg.C. The piece is then cooled from 1100 deg.C to 600 deg.C in 5-50 minutes. The sintered piece kept at 400-650 deg.C is cooled to 300 deg.C in 2 hours or more. This temperature treatment is effected under vacuum or inert gas. According to this method, a sufficient coercive force and a rectangular square characteristic curve are assured, a homogeneous magnet of excellent properties is produced without scattering in quality and a material alloy of about 50kg can be processed as one lot.
JP6235179A 1979-05-21 1979-05-21 Manufacture of rare earth element and cobalt material for permanent magnet Granted JPS55154706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6235179A JPS55154706A (en) 1979-05-21 1979-05-21 Manufacture of rare earth element and cobalt material for permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6235179A JPS55154706A (en) 1979-05-21 1979-05-21 Manufacture of rare earth element and cobalt material for permanent magnet

Publications (2)

Publication Number Publication Date
JPS55154706A true JPS55154706A (en) 1980-12-02
JPS6245686B2 JPS6245686B2 (en) 1987-09-28

Family

ID=13197607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6235179A Granted JPS55154706A (en) 1979-05-21 1979-05-21 Manufacture of rare earth element and cobalt material for permanent magnet

Country Status (1)

Country Link
JP (1) JPS55154706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132905A (en) * 1982-02-02 1983-08-08 Seiko Epson Corp Manufacture of permanent magnet
CN102436888A (en) * 2011-12-21 2012-05-02 钢铁研究总院 Cerium-based 1:5 permanent magnetic material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132905A (en) * 1982-02-02 1983-08-08 Seiko Epson Corp Manufacture of permanent magnet
CN102436888A (en) * 2011-12-21 2012-05-02 钢铁研究总院 Cerium-based 1:5 permanent magnetic material and preparation method thereof

Also Published As

Publication number Publication date
JPS6245686B2 (en) 1987-09-28

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