Patent ID: 6405785
Filing Date: 2002-06-18
Classification: B22D,B22F,B23P,B29C,B33Y,C23C

Abstract:
A hot runner injection molding apparatus comprising:(a) a melt conveying system, said system having (i) a melt distribution manifold having at least one melt passage for transferring melt from a source of pressurized melt, and (ii) at least one injection nozzle having a melt bore therethrough, said melt bore in fluid communication with said at least one manifold melt passage (b) at least one mold cavity adjacent said at least one nozzle, said mold cavity in fluid communication with said melt bore of said at least one nozzle, (c) wherein at least one of said melt distribution manifold and said injection nozzle comprises a body and a heating element capable of heating at least a portion of said body; wherein at least a portion of said body is made of a parent metal, said parent metal being at least partially infiltrated with a second metal having a higher thermal conductivity than said parent metal.