The injection molding process from plastic pellets to molding injection products needs to go through a series of strict processes. The lack of mastery of any one of the processes will lead to product quality problems. The details are shared as follows.
1. Plastic rheology: how plastic flows, orients and changes viscosity.
2. The purpose, operation and result of temperature, pressure, speed and cooling control.
3. Multi-stage filling and multi-stage pressure-holding control; the influence of crystallization, non-crystallization and molecular/fiber orientation on process and quality.
4. How does the adjustment of injection molding machine settings affect the process and quality.
5. The influence of internal stress, cooling rate and plastic shrinkage on the quality of plastic parts.
Nowadays, the parts of many products are inseparable from injection molding products, so the quality of injection molding products directly determines the quality, appearance and performance of the final molded products.