Faygo Plast

Processing (IKV) in Aachen (3) and Fuchs (4) and extensively studied at BASF (5) after the introduction of their high molecular weight HDPE (6). These materials, which exhibit high viscosity and very low coefficients of friction, posed great processing problems such as excessive melt temperature and reduced productivity. This was, perhaps, the key factor that propelled the development and refinement of the grooved feed single screw extruder. Menges and his co-workers continued their research efforts to study the grooved feed extruder machine (7-10), and helped propel industrial acceptance of the new concept throughout Europe (6). The absence of these driving factors in the United States slowed the introduction of the grooved feed extruders in the Americas.
Essentially, in a grooved feed extruder, the conveying and pressure build-up tasks are assigned to the feed section. The main advantages over conventional systems is that with grooved feed extruders not only the transport capabilities, reflected in higher productivity, were improved, but also the grooved feed systems showed higher melt flow stability and pressure invariance.