HOLLOW INJECTION-MOLDED MATERIAL AND JOINING METHOD FOR THE SAME

摘要

The present invention relates to a hollow injection-molded material and a joining method for the same. When a hollow injection-molded material product is manufactured by joining two injection-molded materials, the present invention enables simple joining with low cost, compared with a known joining method through fusion or a manufacturing method through blow-molding. For this purpose, when the hollow injection-molded product is manufactured by joining primary and secondary injection-molded materials, the joining method for the hollow injection-molded material according to the present invention comprises the steps of: injection-molding the primary and secondary injection-molded materials in order to form grooves at a certain depth on each joining surface of the primary and secondary injection-molded materials; joining the primary and secondary injection-molded materials in a joining mold, and injecting the fused joining material into the groove formed on the joining surface, while facing and attaching the joining surfaces of the primary and secondary injection-molded materials then cooling it; and finally completing the injection-molded product by cutting a burr partially formed on the outer circumference of the joint between the primary and secondary injection-molded materials after injection-molding through the joining mold.