| 摘要 |
PURPOSE:To prevent cold mark from developing by a method wherein molten resin is fed in a cavity through the molten resin feed opening for only non- product molding part when the clearance of the cavity is larger than the thickness of a molded article. CONSTITUTION:Molds 3 and 4, which have product molding part 5 and non- product molding part 6, are prepared. Next, when the clearance of a cavity, which is formed by the upper and lower molds 3 and 4, is larger than the thickness of a molded article, molten resin 7 is fed in the mold cavity through a molten resin path provided in the mold from a molten resin feed opening, which is provided only in the non-product molding part 6. |
