The quality requirements for the production of barrel screws?

A screw and barrel must first be able to produce products that meet the quality requirements.
　　The so-called meeting the quality requirements of the screw and barrel means that the products produced should meet the following requirements:
　　1. Various performances that meet the requirements. Have the required physical, chemical, mechanical, and electrical properties;
　　2. Appearance quality that meets the requirements. If it can meet the user's requirements for bubbles, crystal points, and uniformity of dyeing dispersion, etc.;
　　3. The plasticizing quality of the screw meets the requirements:
　　 1) Whether the temperature of the melt extruded by the screw and barrel is uniform, and what is the axial fluctuation and radial temperature difference.
　　 2) Whether there is the lowest melt temperature that can be formed.
　　3) Whether the melt extruded by the screw barrel has pressure fluctuations. Whether the dispersion of dyeing and other additives is even. To
　　 The adaptability of the screw barrel refers to the adaptability of the screw to process different plastics, match different heads and different products. Generally speaking, the stronger the adaptability, the lower the plasticizing efficiency.

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