Composite metal molding and method for manufacturing thereof

Details Composite metal molding and method for manufacturing thereof Composite metal molding and method for manufacturing thereof

2010-07-16

2011-12-13

Wyszomierski, George (Department: 1733)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

C419S038000, C148S105000

Reexamination Certificate

active

08075838

ABSTRACT:
A compression molding which is high in both dimensional accuracy and mechanical strength is difficult to manufacture by a powder molding process. Especially, a molding including a soft magnetic material with high soft magnetic properties is difficult to manufacture. A composite metal molding according to the present invention includes metal particles and the carbide of a resin intervening among the particles. It is manufactured by coating metal particles with a resin, molding the prepared molding material under pressure into a predetermined shape, and heating the prepared pressurized preform to calcine the resin and weld mutually the particles. The carbide of the resin has a weight ratio of 0.001 to 2% to the metal particles when the particles have their proportion expressed as 100. The particles have a weld ratio of 10 to 80%. The particles preferably contain a soft magnetic material and the resin is preferably a furan resin.

REFERENCES:
patent: 3725521 (1973-04-01), Ebling
patent: 4320080 (1982-03-01), Esper et al.
patent: 4879055 (1989-11-01), Sezaki et al.
patent: 5595609 (1997-01-01), Gay
patent: 6808807 (2004-10-01), Anand et al.

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