METHOD FOR MANUFACTURING RAIN GUTTER

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a rain gutter capable of molding in a predetermined shape by regulating a cooling balance by a cooling mold in a resin extruded material having a hollow part extruded by a kneading extruder. SOLUTION: The method for manufacturing the resin gutter comprises the step of previously cooling a hollow part 32 of a resin extruded material 31 to become the resin gutter 31A having the part 32 of a section and a surface part 35 and made of a crystalline thermoplastic resin in the cooling mold 24 in the case of manufacturing the material 31 by using the mold 24.