As important components in industrial and civil fields, large plastic profiles have their product quality and performance directly influenced by the precision plastic extrusion process. Precision plastic extrusion requires strict control of key parameters such as raw material ratio, extrusion temperature, and screw speed to ensure that the dimensional accuracy and mechanical properties of the profiles meet the standards.
Common Technical Q&A 1: Why do dimensional deviations occur in extruded large plastic profiles? Answer: Possible reasons include uneven melting of raw materials, wear of the die cavity, or fluctuations in extrusion speed. Solution: Optimize raw material drying treatment, regularly inspect and repair the die, and adopt a closed-loop control system to stabilize the extrusion speed.
Common Technical Q&A 2: How to solve bubbles or dents on the surface of profiles? Answer: Bubbles are mostly caused by moisture or volatile substances in the raw materials, and dents may result from insufficient cooling and shaping. Solution: Perform pre-drying treatment on the raw materials, improve the cooling efficiency of the shaping section, and ensure uniform cooling and solidification of the profiles.
