EXTRUSION MOLDING MACHINE AND EXTRUSION MOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To simultaneously extrusion mold synthetic resin such as polyethylene and add and mix additive such as crosslinking agent to the synthetic resin in an extruder, to prevent the slip or scorch of the resin and to enable a stable extrusion molding. SOLUTION: An injection nozzle 8 for injecting additive in a foggy state is installed at the front of the forward groove of the supply unit A of the screw 2 of an extruder, and the liquid-like additive of a pressurized state is injected to the unmelted synthetic resin existed in the groove.