PROBLEM TO BE SOLVED: To arrange a hollow part or the like in a long extrusion molded article in a desired position with a high accuracy, when the extrusion molded article which has the hollow part or the like extending in the direction of its length is molded.SOLUTION: The method for manufacturing the extrusion molded article has a process in which fluid supply tubes (gas supply tubes 160, for example) arranged in a cantilevered manner in a material flow passage 150 are supported by a support member 170. The method further has a process in which the support member 170 is moved toward an extrusion port 111 by pressing the support member 170 by molding material while the fluid supply tubes are supported by the support member 170 and the support member 170 is discharged from the extrusion port 111. The method further has a process in which the molded article is formed by continuously discharging the molding material from the extrusion port 111 while the fluid is supplied to the extrusion port 111 through the fluid supply tubes.COPYRIGHT: (C)2013,JPO&INPIT【課題】長手方向に延在する中空等を内部に有する長尺な押出成形品を成形するに際し、押出成形品内における中空等を高精度に所望の配置にする。【解決手段】押出成形品の製造方法は、材料流路150内において片持ち梁式に設けられた流体供給管(例えば、ガス供給管160)を支保部材170により支保する工程を有する。この製造方法は、更に、支保部材170により流体供給管を支保しながら支保部材170を成形材料により押すことによって押出口111側へ移動させ、支保部材170を押出口111から排出する工程を有する。この製造方法は、更に、流体供給管を介して押出口111へ流体を供給しながら、押出口111から成形材料を連続的に吐出することにより、成形品を成形する工程を有する。【選択図】図3
