An evaluation of the efficiency of plasticating systems in the extrusion process.
Part I. Criteria of the efficiency evaluation
The basic categories in the evaluation of efficiency of plasticating systems in extruders are output and cost of the extrusion process as well as product quality. In relation to the last mentioned category, the effect of the extrusion process parameters (temperature, pressure and flow intensity) with allowance for their variation in time, the effect of homogeneity of material composition (quality of intermixing) and the effect of rheological characteristics of the material (viscosity and elasticity) has been isolated. On this basis the main criteria of the efficiency evaluation for plasticating systems have been characterized and methods of their measurement discussed.
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