Many injections molders use valve gated hot runner systems to mold their parts. Sequencing the actuators for a better filling pattern is a common practice among molders. When sequentially valve gating parts there is the possibility of molded in defects such as pressure transition marks on unpainted parts, reflection marks after a paint drying process, and hot spots directly opposite of the gate. These defects are a result of a change in pressures and the fact that polymer melt is compressible. These parts will usually be scrapped, costing the molder time and money.

This presentation shows how Moldex3D provides us with a way to not only predict when and where we will see these defects, but with the ability to simulate pin movement, allows us to see if the defects can be eliminated with Synventive activeGate controls.

*This webinar is co-hosted  by      

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