Fe-Base Alloy Screw and Barrel manufacturers take you to understand the design concept of double alloy screw

The Fe-Base Alloy Screw and Barrel manufacturer tells you that the physical properties of different materials of the double-alloy screw are very different, so the processing functions are also different, and the structure and geometric parameters of the single-screw extruder are different. Fe-Base Alloy Screw and Barrel manufacturers tell you that the rubber extruder screw is very different from the plastic extruder screw: such as screw length-diameter ratio, screw groove depth, screw structure (plastic extruder screw with mixing elements, shearing cutting elements), etc.

The double alloy screw is also different from the rubber extruder screw: Fe-Base Alloy Screw and Barrel manufacturers tell you that the cold feed extruder screw is different from the hot feed extruder screw.
Fe-Base Alloy Screw and Barrel manufacturers tell you that double alloy screw plastic extruder screws are also different. For example, there is a big difference between polyvinyl chloride and polyolefin. The former is an amorphous plastic with high viscosity, which is sensitive to temperature and has no significant melting point. Fe-Base Alloy Screw and Barrel manufacturers tell you that the latter is a crystalline plastic with a low viscosity and a significant melting point. Even polyethylene and polypropylene, which are both polyolefins, are not the same. Even the same polyethylene, but due to different manufacturers, or different batch numbers, its performance is also different. The Fe-Base Alloy Screw and Barrel manufacturer tells you that, for the same plastic, the processing functions of powder and granular are also different, and preheating and non-preheating also affect the processing function. Therefore, different screw designs should be adopted to adapt to different materials.