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JPS5694711A - Manufacturing method of permanent magnet - Google Patents

Manufacturing method of permanent magnet

Info

Publication number
JPS5694711A
JPS5694711A JP17181279A JP17181279A JPS5694711A JP S5694711 A JPS5694711 A JP S5694711A JP 17181279 A JP17181279 A JP 17181279A JP 17181279 A JP17181279 A JP 17181279A JP S5694711 A JPS5694711 A JP S5694711A
Authority
JP
Japan
Prior art keywords
magnetic field
binder
intermetallic compound
magnetic
r2tm17
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.)
Pending
Application number
JP17181279A
Other languages
Japanese (ja)
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 JP17181279A priority Critical patent/JPS5694711A/en
Publication of JPS5694711A publication Critical patent/JPS5694711A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To raise a dimensional precision of an intermetallic compound magnet and to enable an automation by a method wherein a magnetic powder of a specific intermetallic compound is filled in a mould, and the pressure applying direction is made approximately at the right angle to the direction of the magnetic field and then, it is formed in the magnetic field. CONSTITUTION:A binder is added to a magnetic powder of a R2TM17 intermetallic compound of a rare earth metal (R) and a transition metal (TM) and anisotropy is given to this mixture in one time magnetic field forming to form a desired shape, and then, it is made into a finished product only by heating and hardening of a binder. The direction of a magnetic field and the pressure applying direction are made approximately at the right angle to each other and contraction after sintering is reduced. For a R2TM17 mold, a material such as Sm(Co0.7Cu0.08Fe0.2 Zr0.02)8.3, etc. is used and a binder is made to contain less than 0.3-6wt% of organic resin to raise a magnetic performance. An orientation magnetic field is made 15KOe or more and a molding pressure is made 5ton/cm<2> or more. By performing in this way, the dimensional precision of a magnet can be improved and an automation can be performed.
JP17181279A 1979-12-28 1979-12-28 Manufacturing method of permanent magnet Pending JPS5694711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17181279A JPS5694711A (en) 1979-12-28 1979-12-28 Manufacturing method of permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17181279A JPS5694711A (en) 1979-12-28 1979-12-28 Manufacturing method of permanent magnet

Publications (1)

Publication Number Publication Date
JPS5694711A true JPS5694711A (en) 1981-07-31

Family

ID=15930177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17181279A Pending JPS5694711A (en) 1979-12-28 1979-12-28 Manufacturing method of permanent magnet

Country Status (1)

Country Link
JP (1) JPS5694711A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016225408A (en) * 2015-05-28 2016-12-28 株式会社東和製作所 Manufacturing method of anisotropic ring magnet of pseudo radial orientation and anisotropic ring magnet of pseudo radial orientation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016225408A (en) * 2015-05-28 2016-12-28 株式会社東和製作所 Manufacturing method of anisotropic ring magnet of pseudo radial orientation and anisotropic ring magnet of pseudo radial orientation

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