| 摘要 |
PURPOSE: A high strength synthetic resin pipe which greatly improves strength by using a combined profile combining one or more rectangular or circular profiles, and a method for molding the high strength synthetic resin pipe are provided. CONSTITUTION: In a synthetic resin pipe that is molded by enveloping a space between profiles and inner and outer surfaces of the profile using resin, a high strength synthetic resin pipe is characterized in that the synthetic resin pipe is molded through outer surface(5) and inner surface(6) and completed connection part(4) of an integral combined profile(7) that is formed through a connection member(3) between the profiles(2,2'). In molding a synthetic resin pipe using molten resin supplied from a subsidiary extruder in a pipe molding machine after cooling a profile(2) extruded in an extruder in a cooler, a method for molding the high strength synthetic resin pipe comprises a profile extrusion process of extruding two profiles(2,2') at a time in the extruder; a combined profile molding process of supplying a profile connection member(3) to a space between the profiles(2,2') after cooling the extruded profiles(2,2') so that the profiles(2,2') are molded into an integral combined profile(7); a synthetic resin pipe molding process of molding the synthetic resin pipe by supplying molten resin between the molded combined profiles(7).
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