Barrel screw plastification quality requirements
1. meet the requirements of the various properties. Meet the required physical, chemical, mechanical and electrical properties;
2. have the required surface quality. If can reach users on the bubbles, crystals, dye dispersion uniformity of requirements.
3. have the right screw plastification quality:
1) screw barrel out of the melt temperature is uniform, fluctuation of axial and radial temperature difference in a big way.
2) forming the lowest melting temperature.
3) screw tube extruder melts with pressure fluctuations. Coloring and other additives evenly dispersed, and so.