Nozzle for mfr of PVC sheets or panels - having higher temp than cylinder or screw
摘要
<p>Pref. packing strips acting as valves run linearly from the nozzle inlet to the outler edge. The nozzle cross section is dimensioned in accordance with the flow speed of the plastic to be plasticized thus achieving a uniform viscosity inspite of the increased temp. that the nozzle transmits to the material.</p>
