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JPS57106007A - Permanent magnet of rare earth cobalt - Google Patents

Permanent magnet of rare earth cobalt

Info

Publication number
JPS57106007A
JPS57106007A JP55181751A JP18175180A JPS57106007A JP S57106007 A JPS57106007 A JP S57106007A JP 55181751 A JP55181751 A JP 55181751A JP 18175180 A JP18175180 A JP 18175180A JP S57106007 A JPS57106007 A JP S57106007A
Authority
JP
Japan
Prior art keywords
alloy
permanent magnet
nucleus
columnar crystalline
resin
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
JP55181751A
Other languages
Japanese (ja)
Other versions
JPS648455B2 (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 JP55181751A priority Critical patent/JPS57106007A/en
Publication of JPS57106007A publication Critical patent/JPS57106007A/en
Publication of JPS648455B2 publication Critical patent/JPS648455B2/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 improve the magnetic properties of a permanent magnet by producing the magnet by resin-bonding method making use of a nucleus alloy of Sm-Pr-Co-Cu-Fe-M system having a specific composition and exhibiting columnar crystalline macrostructure at the time of casting. CONSTITUTION:An alloy is formed mainly of crystals of R2CO17 type (R represents the complex of Sm and Pr) to have Cu, Fe and M (M being at least one of titanium, zirconium, hafnium, vanadium, niobium and tantalum) contents in accordance with atomic ratios as shown by formula. The alloy thus formed is molten in a high-frequency melting furnace within atmosphere of argon gas. The molten metal is then cast by a cylindrical mold to become a cylindrical ingot the cross-section of which includes a region indicated by B in which the macrostructure has columnar crystalline structure. This region B is cut and used as the nucleus alloy. The nucleus alloy having the columnar crystalline structure are resin bonded by means of an epoxy resin to form a permanent magnet. It is thus possible to obtain a permanent magnet having superior magnetic properties and good corner characteristics of hysteresis loop.
JP55181751A 1980-12-22 1980-12-22 Permanent magnet of rare earth cobalt Granted JPS57106007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55181751A JPS57106007A (en) 1980-12-22 1980-12-22 Permanent magnet of rare earth cobalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55181751A JPS57106007A (en) 1980-12-22 1980-12-22 Permanent magnet of rare earth cobalt

Publications (2)

Publication Number Publication Date
JPS57106007A true JPS57106007A (en) 1982-07-01
JPS648455B2 JPS648455B2 (en) 1989-02-14

Family

ID=16106242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55181751A Granted JPS57106007A (en) 1980-12-22 1980-12-22 Permanent magnet of rare earth cobalt

Country Status (1)

Country Link
JP (1) JPS57106007A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169108A (en) * 1983-03-16 1984-09-25 Toshiba Corp Permanent magnet

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061699A (en) * 1973-10-03 1975-05-27
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5261123A (en) * 1975-11-14 1977-05-20 Namiki Precision Jewel Co Ltd Permanent magnetic alloy
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material
JPS55128502A (en) * 1979-03-23 1980-10-04 Tdk Corp Permanent magnet material and its manufacture
JPS56102533A (en) * 1980-01-16 1981-08-17 Seiko Epson Corp Manufacture of rare earth element-cobalt permanent magnet alloy
JPS56150146A (en) * 1980-04-22 1981-11-20 Seiko Epson Corp Production of rare earth-cobalt permanent magnet alloy
JPS56166348A (en) * 1980-05-26 1981-12-21 Seiko Epson Corp Manufacture of permanent magnet alloy of rare earth element and cobalt
JPS56166347A (en) * 1980-05-26 1981-12-21 Takagi Kogyo Kk Manufacture of permanent magnet alloy of rare earth element and cobalt

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061699A (en) * 1973-10-03 1975-05-27
JPS5216444A (en) * 1975-07-30 1977-02-07 Matsushita Refrigeration Automatic spot welding process
JPS5261123A (en) * 1975-11-14 1977-05-20 Namiki Precision Jewel Co Ltd Permanent magnetic alloy
JPS5521575A (en) * 1978-08-03 1980-02-15 Seiko Epson Corp Permanent magnet material
JPS55128502A (en) * 1979-03-23 1980-10-04 Tdk Corp Permanent magnet material and its manufacture
JPS56102533A (en) * 1980-01-16 1981-08-17 Seiko Epson Corp Manufacture of rare earth element-cobalt permanent magnet alloy
JPS56150146A (en) * 1980-04-22 1981-11-20 Seiko Epson Corp Production of rare earth-cobalt permanent magnet alloy
JPS56166348A (en) * 1980-05-26 1981-12-21 Seiko Epson Corp Manufacture of permanent magnet alloy of rare earth element and cobalt
JPS56166347A (en) * 1980-05-26 1981-12-21 Takagi Kogyo Kk Manufacture of permanent magnet alloy of rare earth element and cobalt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169108A (en) * 1983-03-16 1984-09-25 Toshiba Corp Permanent magnet

Also Published As

Publication number Publication date
JPS648455B2 (en) 1989-02-14

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