Diameter and length: The diameter and length of the screw barrel can affect the melting and extrusion effects of plastics. Generally speaking, the larger the diameter, it is suitable for extruding large-sized products; The longer the length, it is suitable for extruding high viscosity plastic materials.
Pitch and Thread Depth: Pitch and thread depth determine the compression ratio and shear force of the screw barrel. For different plastic materials and extrusion processes, it is necessary to select different pitches and thread depths to achieve the best extrusion effect.
Material and surface treatment: Screw barrel is usually made of high-strength alloy steel or stainless steel, and its surface is specially treated to improve its wear resistance and corrosion resistance. Different materials and surface treatment methods can affect the service life and extrusion effect of the screw barrel.In summary, selecting a suitable screw barrel model is one of the keys to ensuring the quality and production efficiency of extrusion products.