JPS57133606A - Manufacture of oxide permanent magnet - Google Patents

Manufacture of oxide permanent magnet

Info

Publication number
JPS57133606A
JPS57133606A JP56018975A JP1897581A JPS57133606A JP S57133606 A JPS57133606 A JP S57133606A JP 56018975 A JP56018975 A JP 56018975A JP 1897581 A JP1897581 A JP 1897581A JP S57133606 A JPS57133606 A JP S57133606A
Authority
JP
Japan
Prior art keywords
magnetic powder
permanent magnet
basing
powder
magnet
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
JP56018975A
Other languages
Japanese (ja)
Inventor
Mikio Yamamoto
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP56018975A priority Critical patent/JPS57133606A/en
Publication of JPS57133606A publication Critical patent/JPS57133606A/en
Pending 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
    • H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain the magnet having no holes on the surface and in the inside by a method wherein, when the oxide permanent magnet is manufactured using a dry process, a molding auxiliary agent, obtained by dissolving camphor regulated to 0.5-3.0wt% basing on raw magnetic powder in an organic solvent, is incorporated with the raw magentic powder and they are thoroughly kneaded. CONSTITUTION:For the magnetic powder, consisting of dried powder such as stronitium ferrite or the like having an average grain diameter of 1mum, the same weight of a molding auxiliary agent, obtained by dissolving camphor of 0.3-3.0wt% basing on the magnetic powder in the denatured alcohol of the same weight, is added. After the above mixture has been thoroughly mixed using a mixer or the like, the alcohol is volatilized in that state of condition, and then calcium stearate of 1.0wt% basing on the magnetic powder is added and mixed for the purpose of improving the slipperiness of the oxide magnetic powder. Subsequently, a disintegration is performed using an atomizer. When a permanent magnet is manufactured using the magnetic powder thus obtained, no hole is produced on the surface and in the inside of the permanent magnet and the magnet having sufficient strength can be obtained.
JP56018975A 1981-02-13 1981-02-13 Manufacture of oxide permanent magnet Pending JPS57133606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56018975A JPS57133606A (en) 1981-02-13 1981-02-13 Manufacture of oxide permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56018975A JPS57133606A (en) 1981-02-13 1981-02-13 Manufacture of oxide permanent magnet

Publications (1)

Publication Number Publication Date
JPS57133606A true JPS57133606A (en) 1982-08-18

Family

ID=11986630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56018975A Pending JPS57133606A (en) 1981-02-13 1981-02-13 Manufacture of oxide permanent magnet

Country Status (1)

Country Link
JP (1) JPS57133606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004508A (en) * 1989-12-12 1991-04-02 International Business Machines Corporation Thermally dissipated soldering flux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004508A (en) * 1989-12-12 1991-04-02 International Business Machines Corporation Thermally dissipated soldering flux

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