Method for producing soft magnetic powdered core

Details Method for producing soft magnetic powdered core Method for producing soft magnetic powdered core

2008-03-17

2011-10-04

Sheehan, John (Department: 1736)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C252S062540, C148S121000

Reexamination Certificate

active

08029626

ABSTRACT:
A method for producing a soft magnetic powdered core comprises a mixing step for forming a raw powder by adding a thermoplastic resin powder to a soft magnetic powder and mixing them, a compacting step for forming a compact by compacting the raw powder into a predetermined shape, a melting and setting step for the resin in which the resin of the compact is melted by heating to at least the melting point of the thermoplastic resin and the melted resin is set by cooling to a room temperature, and a crystallizing step for the resin in which the set resin is heated to not less than the exothermic onset temperature and not more than the endothermic onset temperature, which are measured by DSC analysis of the thermoplastic resin, and is cooled to a room temperature.

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