| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding method of a resin capable of molding a large-sized injection-molded product in a fast molding cycle without deforming the same, and a manufacturing method of a molded welded part using the injection molding method. SOLUTION: In the injection molding method of the resin for obtaining the injection-molded product by filling a mold, which is constituted of the cavity main body formed by a fixed mold and a movable mold and a core, with the molten resin and cooling and solidifying the charged molten resin, the core has a structure detachable with respect to the mold and the core is arranged to the outside of the molded product to inject the resin in the mold. After the resin is cooled and solidified, the core is ejected into the cavity using the ejector means provided in the mold to integrally take out the core and the molded product. Further, the manufacturing method of the molded and welded part for welding the molded product, which is integrally ejected along with the core by the injection molding method of the resin, to another part along with the core is also disclosed. COPYRIGHT: (C)2008,JPO&INPIT
|
