JPS57197808A - Manufacture of oxide permanent magnet - Google Patents

Manufacture of oxide permanent magnet

Info

Publication number
JPS57197808A
JPS57197808A JP56081113A JP8111381A JPS57197808A JP S57197808 A JPS57197808 A JP S57197808A JP 56081113 A JP56081113 A JP 56081113A JP 8111381 A JP8111381 A JP 8111381A JP S57197808 A JPS57197808 A JP S57197808A
Authority
JP
Japan
Prior art keywords
iron powder
manufacture
permanent magnet
powder
retentivity
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
JP56081113A
Other languages
Japanese (ja)
Inventor
Mikio Yamamoto
Yasuji Suzuki
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 JP56081113A priority Critical patent/JPS57197808A/en
Publication of JPS57197808A publication Critical patent/JPS57197808A/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
    • H01F1/09—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin

Abstract

PURPOSE:To contrive the improvement for residual flux density and retentivity, by adding iron powder when pulverizing by a wet method for ferrite magnetic powder. CONSTITUTION:After adding 0-1.5wt% of iron powder to strontium ferrite magnetic powder with 2l of water for pulverizing for two hours, magnetic field molding is performed for the B-H curve of a fired strontium ferrite magnet as shown in the figure. 1-6 in the figure represent the B-H curves for those with 0.1-1.5wt% of iron powder addition. The addition of iron powder improves residual flux density and retentivity without deteriorating the rectangularity of the B-H curve.
JP56081113A 1981-05-29 1981-05-29 Manufacture of oxide permanent magnet Pending JPS57197808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56081113A JPS57197808A (en) 1981-05-29 1981-05-29 Manufacture of oxide permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56081113A JPS57197808A (en) 1981-05-29 1981-05-29 Manufacture of oxide permanent magnet

Publications (1)

Publication Number Publication Date
JPS57197808A true JPS57197808A (en) 1982-12-04

Family

ID=13737316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56081113A Pending JPS57197808A (en) 1981-05-29 1981-05-29 Manufacture of oxide permanent magnet

Country Status (1)

Country Link
JP (1) JPS57197808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858265A (en) * 1994-11-25 1999-01-12 The University Of Birmingham Hexaferrite materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858265A (en) * 1994-11-25 1999-01-12 The University Of Birmingham Hexaferrite materials

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