A novel method for velocity profile measurements in flowing polymer melts

This article introduced a novel technique for the determination of velocity profiles in flowing polymer melts in the barrel of an injection moulding m achine, this technique being called Cooled-Stainless Tube (CST). An experim ental arrangement of such technique involved making use of a novel temperat ure sensor coupled with an experimental test rig. The CST technique was fou nd to be novel, simple, and reliable for velocity profile measurements of f lowing polymer melts, The preliminary results showed that the velocity prof iles in the barrel changed continuously with changing screw position.