RESIN FLOW IN A PULTRUSION PROCESS

A simple model for the resin flow in a pultrusion die based on the the ory of lubrication has been developed. The velocity field in the pultr usion die has been calculated together with the pressure drop. A usefu l tool to evaluate the energy loss due to the viscosity dissipation al ong the die has been developed. Model results have been evaluated, by using chemorheological submodels, in terms of the contribution to the pulling force due to the viscous drag.