JPS5674902A - Dust core for high frequency wave and its preparing process - Google Patents

Dust core for high frequency wave and its preparing process

Info

Publication number
JPS5674902A
JPS5674902A JP15147079A JP15147079A JPS5674902A JP S5674902 A JPS5674902 A JP S5674902A JP 15147079 A JP15147079 A JP 15147079A JP 15147079 A JP15147079 A JP 15147079A JP S5674902 A JPS5674902 A JP S5674902A
Authority
JP
Japan
Prior art keywords
high frequency
powders
dust core
frequency wave
binder
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
JP15147079A
Other languages
Japanese (ja)
Inventor
Tsuguji Koike
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP15147079A priority Critical patent/JPS5674902A/en
Publication of JPS5674902A publication Critical patent/JPS5674902A/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
    • H01F1/20—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 in the form of particles, e.g. powder
    • H01F1/22—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 in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—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 in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances

Landscapes

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

Abstract

PURPOSE:To obtain a stable frequency characteristic having a high electric resistance and a high permeability in high frequency wave zone by mixing a pure iron with a reduced iron at a certain ratio and forming by press molding using a binder such as a synthetic resin or the like. CONSTITUTION:Reduced iron powders obtained by a reduction treatment of powders of metallic oxide such as a ferrite or the like, are mixed with powders of pure iron having a constant rate at a given ratio. Then, it is subjected to the press molding by adding a small amount of binder and performed the baking. Further, it is impregnated with a phenol resin to obtain a dust core. Thus, a stable frequency characteristic having a high electric resistance and a high magnetic permeability can be obtained even in a high frequency zone.
JP15147079A 1979-11-22 1979-11-22 Dust core for high frequency wave and its preparing process Pending JPS5674902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15147079A JPS5674902A (en) 1979-11-22 1979-11-22 Dust core for high frequency wave and its preparing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15147079A JPS5674902A (en) 1979-11-22 1979-11-22 Dust core for high frequency wave and its preparing process

Publications (1)

Publication Number Publication Date
JPS5674902A true JPS5674902A (en) 1981-06-20

Family

ID=15519216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15147079A Pending JPS5674902A (en) 1979-11-22 1979-11-22 Dust core for high frequency wave and its preparing process

Country Status (1)

Country Link
JP (1) JPS5674902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6749767B2 (en) 2001-03-21 2004-06-15 Kobe Steel Ltd Powder for high strength dust core, high strength dust core and method for making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6749767B2 (en) 2001-03-21 2004-06-15 Kobe Steel Ltd Powder for high strength dust core, high strength dust core and method for making same

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