Evaluation of injection molding characteristics using mold with carbon coating

Abstract

Molding characteristics of carbon coated mold were evaluated through comparative injection molding test with non-coated mold. The resistance value of the mold surface during the flows of molten resin was measured by the inclined pins which installed the strain gauge. The flow length of molded product through carbon coated mold was improved 20 % over than non-coated mold. The resistance value was reduced about 80 %