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JPS57176704A - Manufacture of core - Google Patents

Manufacture of core

Info

Publication number
JPS57176704A
JPS57176704A JP6170581A JP6170581A JPS57176704A JP S57176704 A JPS57176704 A JP S57176704A JP 6170581 A JP6170581 A JP 6170581A JP 6170581 A JP6170581 A JP 6170581A JP S57176704 A JPS57176704 A JP S57176704A
Authority
JP
Japan
Prior art keywords
approx
hour
fine powder
magnetic field
superquenching
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
JP6170581A
Other languages
Japanese (ja)
Inventor
Masato Sagawa
Kaoru Hashimoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6170581A priority Critical patent/JPS57176704A/en
Publication of JPS57176704A publication Critical patent/JPS57176704A/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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • H01F1/15366—Making agglomerates therefrom, e.g. by pressing using a binder
    • H01F1/15375—Making agglomerates therefrom, e.g. by pressing using a binder using polymers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain an anisotropic core having large saturation magnetic flux density, small iron loss and excellent high frequency characteristic by compressing and insulating a rectangular fine powder made of metal magnetic material produced by a superquenching method under a high magnetic field. CONSTITUTION:A metal magnetic material produced by a superquenching method such as, for example, a superquenching Sendust is formed in a strip having approx. 30mum of thickness and 0.1-1mm. of width, and this strip is cut in a length of several mm. to produce a fine powder. Then, this is dipped in a polysilcesoxane solution, is then dried at 100 deg.C for 1 hour, is thereafter neat treated at approx. 350 deg.C in a magnetic field of approx. 100 oersted for 1 hour, and is insulated on the surfaces of the fine powder pieces. Subsequently, epoxy resin powder is then applied, the mixture is compressed to form a molded unit 8 by presses 9, 9' in a magnetic field of approx. 3,000 Oersted, and is heated at 120 deg.C for 1 hour to harden the resin. Thus, an anisotropic core having large saturation magnetic flux density, small iron loss and excellent high frequency characteristics can be obtained.
JP6170581A 1981-04-23 1981-04-23 Manufacture of core Pending JPS57176704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6170581A JPS57176704A (en) 1981-04-23 1981-04-23 Manufacture of core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6170581A JPS57176704A (en) 1981-04-23 1981-04-23 Manufacture of core

Publications (1)

Publication Number Publication Date
JPS57176704A true JPS57176704A (en) 1982-10-30

Family

ID=13178912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6170581A Pending JPS57176704A (en) 1981-04-23 1981-04-23 Manufacture of core

Country Status (1)

Country Link
JP (1) JPS57176704A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222207A (en) * 1985-03-28 1986-10-02 Toshiba Corp Iron core manufacturing method
JPS621205A (en) * 1985-05-31 1987-01-07 Tohoku Metal Ind Ltd Dust core
EP0921534A4 (en) * 1996-08-21 2000-04-26 Tdk Corp Magnetic powder and magnetic molded article
WO2000025326A1 (en) * 1998-10-28 2000-05-04 Vacuumschmelze Gmbh Injection-molded soft-magnetic powder composite material and method for producing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222207A (en) * 1985-03-28 1986-10-02 Toshiba Corp Iron core manufacturing method
JPS621205A (en) * 1985-05-31 1987-01-07 Tohoku Metal Ind Ltd Dust core
EP0921534A4 (en) * 1996-08-21 2000-04-26 Tdk Corp Magnetic powder and magnetic molded article
WO2000025326A1 (en) * 1998-10-28 2000-05-04 Vacuumschmelze Gmbh Injection-molded soft-magnetic powder composite material and method for producing the same

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