Working of A Single Screw Extruder
When it comes to pelletizing machines , single screw extrusion is one of the most common. In a single screw extruder, the primary role is to build up pressure in the polymer melt in order for the polymer to be extruded through the die. The majority of single-screw extruders are plasticating, which means that the solid resin balls or powders melt in the screw as a result of the pressure applied to them. Some single screw systems, on the other hand, maybe employed for both mixing and blending operations. When working with pure polymers such as HDPE, a single screw extruder is highly advantageous. Process of Extrusion A single screw extruder machine is composed of the following components: a screw, a barrel, a driving mechanism, a resin feeding system, and controls. The resin is moved through the heated barrel by the continually rotating screw, where it is heated to the right temperature and mixed into a homogenous melt as it passes through. Backpressure is create...