THERMAL PERFORMANCE OF HYBRID INJECTION MOULDS WITH MOLDING ZONE MADE FROM NON-METALLIC MATERIALS

摘要

Hybrid injection-molds with non-metallic components in the molding zone are being considered as the single possibility to realize short runs or single parts. The technique used for making the cavity from non-conventional materials (ceramics, concrete) is the mould of the resin above the master part. In ours researches we used for experiences epoxy resin filled with aluminum powder - Weicon "Weidling C" made from 75% resin and 25% aluminum powder). This material presents poor thermal properties which increase the molding cycle. In this study, we will analyze thermal performances of moulds with non-metallic forming nests having cooling channels or without cooling channels.