| 摘要 |
PROBLEM TO BE SOLVED: To improve cooling efficiency of a molded tubular resin and also improve shape dimension accuracy of a synthetic resin tube to be manufactured. SOLUTION: A molten resin (r) is extruded into a tubular shape out of a resin extrusion section 10. A molding tool 30 of given shape is disposed outside an extruded tubular resin (p), and pressurized gas is introduced inside the tubular resin (p) and atomized cooling liquid is introduced therein, and the tubular resin is pressed on the molding tool by the pressurized gas to mold the tubular resin (p) into the given shape, and the tubular resin (p) is cooled by the atomized cooling liquid. |
