INJECTION MOLDING METHOD

摘要

Disclosed is an injection molding method capable of preventing impressions from flow-merging sections from remaining as external appearance defects when a crystalline resin is injection molded in a mold having multiple gates. With a mold (10) heated to at least 100°C below the melting temperature of a crystalline resin (20), the crystalline resin (20) which contains spherical bodies is injected into and fills a cavity (12) of the mold (10) via multiple gates (14). Then, the mold (10) is cooled, hardening the crystalline resin (20) within the cavity (12).