LIP ACTUATOR PERFORMANCE IN AUTOMATIC PROFILE CONTROL SYSTEMS FOR FLAT DIES EXTRUSION

摘要

Thermal translators, along with the connected hardware and software controls, represent the core of automatic control of flexible lips in flat die extrusion. The thermo-mechanical efficiency of said translators has a direct impact on the process for ensuring proper gauge uniformity in film extrusion, thus affecting the quality and the economy of the manufacturing process. This paper will investigate the potential advantages and disadvantages related to translators based on different materials of construction and their basic thermal and mechanical performance. The work presented is the result of analytical and FEA computer simulations.