Continuous monitoring of quality parameters - Inline monitoring in the extrusion process using ultrasonics [German]

摘要

An ultrasonic technique for inline measurement of the velocity and absorption of longitudinal waves during the extrusion process was developed. For PS it was possible to differentiate between the different melt-flaw indices. For the PE/glass bead composite a significant dependency of both measured variables on the composition was found. [References: 10]