JPS5710210A - Manufacture of permanent magnet material - Google Patents

Manufacture of permanent magnet material

Info

Publication number
JPS5710210A
JPS5710210A JP8357780A JP8357780A JPS5710210A JP S5710210 A JPS5710210 A JP S5710210A JP 8357780 A JP8357780 A JP 8357780A JP 8357780 A JP8357780 A JP 8357780A JP S5710210 A JPS5710210 A JP S5710210A
Authority
JP
Japan
Prior art keywords
alloy
permanent magnet
cooled
particles
molten
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
JP8357780A
Other languages
Japanese (ja)
Other versions
JPH0140482B2 (en
Inventor
Itaru Okonogi
Tatsuya Shimoda
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 JP8357780A priority Critical patent/JPS5710210A/en
Publication of JPS5710210A publication Critical patent/JPS5710210A/en
Publication of JPH0140482B2 publication Critical patent/JPH0140482B2/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)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To incorporate a high magnetic performance in a permanent magnet material by heat treating R2TM17 type permanent magnet alloy containing rare earth metals (R) and transition metals (TM) in a lump state and magnetically hardening the alloy. CONSTITUTION:1Kg of alloy containing, for example, 23.8% of Sm, 6.5% of Cu, 15.6% Fe, 3.2% or Zr and the residue of Co is molten in a high frequency melting furnace, and the molten alloy is cast in a mold. 100g of lumps of thus obtained alloy ingots are solution heat treated in Ar gas, are then cooled to the room temperature, the alloy is then heated, for example, in Ar gas in a heat treatment furnace, is aged, and is then cooled. Subsequently, this alloy is wet pulverized in Daiflon by a ball mill into particles having 15mum of average grain size, epoxy resin is added to the particles, the mixture is then mixed, is pressure molded in a magnetic field press, and is further hydraulically pressed. Thus, the variation in the composition of the alloy can be extremely reduced, and high magnetic performance can be incorporated in the alloy.
JP8357780A 1980-06-20 1980-06-20 Manufacture of permanent magnet material Granted JPS5710210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8357780A JPS5710210A (en) 1980-06-20 1980-06-20 Manufacture of permanent magnet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8357780A JPS5710210A (en) 1980-06-20 1980-06-20 Manufacture of permanent magnet material

Related Child Applications (4)

Application Number Title Priority Date Filing Date
JP63331229A Division JPH02301A (en) 1988-12-29 1988-12-29 Permanent magnet
JP63331228A Division JPH01230208A (en) 1988-12-29 1988-12-29 Isotropic magnet
JP2198814A Division JPH03114205A (en) 1990-07-26 1990-07-26 Sintered type permanent magnet
JP2198815A Division JPH03114206A (en) 1990-07-26 1990-07-26 Manufacture of permanent magnet

Publications (2)

Publication Number Publication Date
JPS5710210A true JPS5710210A (en) 1982-01-19
JPH0140482B2 JPH0140482B2 (en) 1989-08-29

Family

ID=13806349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8357780A Granted JPS5710210A (en) 1980-06-20 1980-06-20 Manufacture of permanent magnet material

Country Status (1)

Country Link
JP (1) JPS5710210A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
JPH02301A (en) * 1988-12-29 1990-01-05 Seiko Epson Corp Permanent magnet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137820A (en) * 1974-04-24 1975-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137820A (en) * 1974-04-24 1975-11-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182802A (en) * 1982-04-21 1983-10-25 Pioneer Electronic Corp Preparation of permanent magnet
JPH0416923B2 (en) * 1982-04-21 1992-03-25 Pioneer Electronic Corp
JPH02301A (en) * 1988-12-29 1990-01-05 Seiko Epson Corp Permanent magnet

Also Published As

Publication number Publication date
JPH0140482B2 (en) 1989-08-29

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