Co-injection molding overview
Co-injection molding involves injection of two dissimilar materials. Because of this, co-injection has some special advantages, as well as some potential molding problems. The Co-injection analysis helps you overcome the potential problems and leverage the advantages, by helping to optimize process control strategies and enhance part quality.
Overcoming Co-injection molding problems
Because Co-injection molding involves the injection of two dissimilar materials, there are some potential molding problems that may need to be overcome.
Co-injection material
The advantage of using hot runners is that the Co-injection molding analysis is more accurate due to the calculation of pressure drop in the hot runners.
Co-injection controllers
Standard injection molding uses one process controller. In contrast, Co-injection molding uses two controllers; Controller A controls Material A (usually the skin material) and Controller B controls Material B (usually the core material).