Dust core and method for producing the same

Details Dust core and method for producing the same Dust core and method for producing the same

2005-06-07

2005-06-07

Enad, Elvin (Department: 2832)

Inductor devices

Core forms casing

C336S233000, C336S090000, C336S092000, C336S200000, C029S602100, C029S605000, C029S606000

Reexamination Certificate

active

06903641

ABSTRACT:
The present invention is characterized in that, in a powder magnetic core obtained by compaction of an iron-based magnetic powder covered with an insulation film, a saturation magnetization Ms is Ms≧1.9 T in a 1.6 MA/m magnetic field; a specific resistance ρ is ρ≧1.5 μΩm; a magnetic flux density B2kis B2k≧1.1 T in a 2 kA/m magnetic field; and a magnetic flux density B10kis B10k≧1.6 T in a 10 kA/m magnetic field. In accordance with the present invention, it has been possible to industrially carry out compacting iron-based magnetic powders under remarkably high compacting pressures. As a result, high-performance powder magnetic cores are obtained which have a high density, and which are good in terms of the specific resistance and magnetic permeability.

REFERENCES:
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