Abstract
Efforts are being made to put to practical application microcellular injection molding which generate microcellular structures inside molded products by kneading melt with carbon dioxide and nitrogen in the supercritical state. This method is also applied to the molding of products with high dimensional accuracy, however, the external defect of silver streaks are known to occur and is a problem. This report discusses attempts to control the generation of silver streaks using an induction heating mold which incorporates electromagnetic induction coil inside its mold.
