RUBBER EXTRUSION PROCESS MODEL

It is quite difficult to master the functioning of a rubber extruder, The difference in rheological behaviour from one batch of rubber to th e other provokes functional changes. The latter are difficulties to ma ster as they have very long delays, This study deals with the definiti on of a dynamic model which describes the behaviour of the extruder. F irst, a great number of parameters are recorded, The main perturbation is due to the viscosity which differs from one batch to the other. Se condly, a dynamic model describing the output (throughput) according t o the setting (screw speed) and the perturbation (viscosity) is establ ished.