Production method for powdered core

Details Production method for powdered core Production method for powdered core

2007-05-01

2007-05-01

Sheehan, John P. (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C419S065000, C419S064000

Reexamination Certificate

active

10529733

ABSTRACT:
The present invention provides a production method for a powdered core, including steps of preparing a mixture including a soft magnetic powder and a resin powder to obtain a mixture, compacting the mixture into a predetermined shape to obtain a green compact and heating the green compact, and wherein the resin powder has a median size of not more than 50 μm, and the resin powder amount is 0.01 to 5 vol %. The method reduces production cost, and decreases eddy-current loss Weand hysteresis loss Wh, whereby a powdered core in which a durability is improved and the technical advantages are expanded can be provided.

REFERENCES:
patent: 6888435 (2005-05-01), Inoue et al.
patent: 2003/0047706 (2003-03-01), Mitani et al.
patent: 2003/0127157 (2003-07-01), Iyoda et al.
patent: 2004/0134566 (2004-07-01), Iyoda et al.
patent: 60-235412 (1985-11-01), None
patent: 09-102409 (1997-04-01), None
patent: 11-354359 (1999-12-01), None
patent: 2000-278951 (2000-10-01), None
patent: 2001-155914 (2001-06-01), None
patent: 2002-246219 (2002-08-01), None
patent: 2002-280209 (2002-09-01), None
patent: 2003-183702 (2003-07-01), None

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