| 摘要 |
<p>PURPOSE:To provide a vent extruder by which a deaeration malfunction can be early detected and remedy there for can be early executed. CONSTITUTION:The vent extruder comprises a pressure sensor 22 provided on a barrel wall 2 in a material seal 111 of a compression zone of a first stage 11 of a screw 1, and a controller 7 for controlling rotation of the screw 1 when resin pressure detected by the sensor 22 is deviated out of a preset resin pressure range.</p> |
