Within the framework of this study the effectiveness of different core cooling systems was compared by means of FEM-simulation programs. Further a infrared camera system was used to take pictures of the part after ejection.
Moldflow and Abaqus were used to simulate the cooling process in mold cores. The calculations were executed for 2 polypropylene types with different thermal properties. The temperatur distributions in uncooled and cooled cores were compared for different mold materials. Further the wall thickness of the part was varied.
A infrared camera system was used to compare the temperature distribution with FEM-calculation results for 2 different polypropylene types with known emission coefficients. Melt temperature and cooling time were varied in 2 levels.
Finaly the transient starting behaviour of the mold as well as the cooling of the part at the ambient air were simulated with Abaqus.