Soft magnetic composite materials

Details Soft magnetic composite materials Soft magnetic composite materials

2006-06-15

2011-12-13

Sheehan, John (Department: 1736)

Metal treatment

Stock

Magnetic

C148S104000, C148S122000

Reexamination Certificate

active

08075710

ABSTRACT:
A process for the manufacture of soft magnetic composite components is provided including the steps of: die compacting a powder composition including a mixture of soft magnetic, iron or iron-based powder, core particles of which are surrounded by an electrically insulating, inorganic coating, and an organic lubricant in an amount of 0.05 to 1.5% by weight of the composition, the organic lubricant being free from metal and having a temperature of vaporization less than the decomposition temperature of the coating; ejecting the compacted body from the die; heating the compacted body in an inert atmosphere to a temperature above the vaporization temperature of the lubricant and below the decomposition temperature of the inorganic coating for removing the lubricant from the compacted body, and subjecting the body obtained after heating the compacted body in an inert atmosphere to heat treatment at a temperature between 300 and 600 in water vapor.

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Decision on Grant issued by Federal Service on Industrial Property, Patents and Trade Marks for Application No. 2008101535, Nov. 9, 2009, Moscow, Russia.
English Translation of Decision on Grant issued by Federal Service on Industrial Property, Patents and Trade Marks for Application No. 2008101535, Nov. 9, 2009, Moscow, Russia.
English-language translation of JPO Office Action mailed on Nov. 9, 2010, in corresponding Japanese Patent Application No. JP 2008-516788.

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