Two mathematical models are derived to describe the thermal dynamics of a plastics production machine. The Smart Sensor design is based on finite volume model. accuracy model validated by high-order element Those measurements. A for heat flow between extruder cylinder and screw conveyor designed. Such configuration has advantage decouple control problem from specific granulate.

Tensile and impact test samples of ultra-high molecular weight polyethylene (UHMWPE), high-density (HDPE), their blends at various UHMWPE/HDPE ratios were prepared via compression molding injection for thermal, rheological, mechanical characterization. A twin-screw extruder with either a tapered die air-cooling or regular was used to compound extrude the materials prior pelletization molding. T...

Multi-axis fused deposition modelling (FDM) 3D printing technology has been paid attention to by more and people. However, existing FDM extruders are usually short fat, which significantly restricts the popularization of multi-axis because one significant trend additive manufacturing is use long thin avoid collisions between workpieces in process. This paper presents design a throat-extended ex...

Abstract Mixing in extrusion is a vital part of achieving consistent and high-quality extrudates, with residence time being an elucidative measure the mixing performance. Recent studies around numerical modeling distributions single-screw extruders appear to consider flooded mainly. This paper introduces new general CFD model characterize extruder fill length distribution for viscoplastic ceram...

Ez a cikk az FDM/FLM/FFF technológiát használó 3D nyomtatók vázszerkezetét, extruder- és nyomtatófej-kialakításait vizsgálja. Összehasonlítjuk különböző lehetőségeket, azt vizsgálva, hogy milyen hibalehetőségekkel kell számolnunk egy tetszőleges nyomtatónál, annak vázától egyéb mechanikai elemeivel bezárólag.