JPS57107006A - Permanent magnet made of rare-earth cobalt - Google Patents

Permanent magnet made of rare-earth cobalt

Info

Publication number
JPS57107006A
JPS57107006A JP55184329A JP18432980A JPS57107006A JP S57107006 A JPS57107006 A JP S57107006A JP 55184329 A JP55184329 A JP 55184329A JP 18432980 A JP18432980 A JP 18432980A JP S57107006 A JPS57107006 A JP S57107006A
Authority
JP
Japan
Prior art keywords
permanent magnet
rare
alloy
macrostructure
ingot
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
JP55184329A
Other languages
Japanese (ja)
Other versions
JPS648457B2 (en
Inventor
Tatsuya Shimoda
Itaru Okonogi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55184329A priority Critical patent/JPS57107006A/en
Publication of JPS57107006A publication Critical patent/JPS57107006A/en
Publication of JPS648457B2 publication Critical patent/JPS648457B2/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
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To produce a permanent magnet having good saturated magnetization and coercive force characteristics by a method wherein an alloy including specific ratios of Sm, Ce, Co, Cu and Fe is used and yet the macrostructure of its ingot in casting is mainly a columnar crystal, and this is bonded with resin. CONSTITUTION:With an alloy composed of Sm, Ce, Co, Cu and Fe, the composition is set at Sm1-xCex(Co1-u-vCuuFev)z when represented by an atomic ratio where 0<x<0.5, 0<u<2.0, 0<v<0.5, 6.5<=z<=9, and the alloy has an R2Co17 type crystal as a main component when R is a complex of Sm and Ce, and yet the macrostructure of its ingot in casting must be mainly a columnar crystal. These are bonded with resin. Decrease of a coercive force and saturated magnetization due to substitution of Ce for Sm can be prevented by columnar crystallization, and decrease of a manufacturing cost of Co permanent magnets can be gained.
JP55184329A 1980-12-25 1980-12-25 Permanent magnet made of rare-earth cobalt Granted JPS57107006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55184329A JPS57107006A (en) 1980-12-25 1980-12-25 Permanent magnet made of rare-earth cobalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55184329A JPS57107006A (en) 1980-12-25 1980-12-25 Permanent magnet made of rare-earth cobalt

Publications (2)

Publication Number Publication Date
JPS57107006A true JPS57107006A (en) 1982-07-03
JPS648457B2 JPS648457B2 (en) 1989-02-14

Family

ID=16151407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55184329A Granted JPS57107006A (en) 1980-12-25 1980-12-25 Permanent magnet made of rare-earth cobalt

Country Status (1)

Country Link
JP (1) JPS57107006A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material

Also Published As

Publication number Publication date
JPS648457B2 (en) 1989-02-14

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