BASIC EXTRUSION MODELS AS DIAGNOSTIC TOOLS IN EXTRUSION TROUBLE SHOOTING

摘要

Use of the basic mathematical expressions of the solids conveying, melting, metering and mixing theories for single screw extruders permits the rapid understanding of the functions of an extruder and the interrelationship of polymer properties and process conditions. Understanding the algebra of these models allows for the development of corrective actions and then interpreting the result of the changes permits a new insight into the root cause of the problem.