A novel method for velocity profile measurements in flowing polymer melts

摘要

This article introduced a novel technique for the determination of velocity profiles in flowing polymer melts in the barrel of an injection moulding machine, this technique being called Cooled-Stainless Tube (CST). An experimental arrangement of such technique involved making use of a novel temperature sensor cou- pled with an experimental test rig. The CST technique was found to be novel, simple, and reliable for velocity profile measurements of flowing polymer melts. The preliminary results showed that the velocity profiles in the barrel changed continuously with changing screw po- sition.