The mold has been designed in order to exhibit the strong capabilities of a FLEXflow Evo hot runner system in balancing multi-cavities tool with remarkable differences in terms of frames’ volume and flow length too.
Our FLEXflow Evo solution let us reach a perfectly balanced filling for every cavity, simply managing the material flow in every noozle. The system is so flexible that the user can settle different opening quotes for every noozle in order to balance the multiple injection pressions required. Infact different opening quotes cause custimized pression loss and flow range in every noozle, with no need to settle a late opening for selected noozles, usually the cause of many injection defects on the part.
The balancing solution was defined thanks to a moldflow simulation, in order to identify the appropriate FLEXflow Evo settings. Infact every needle takes a different opening position during the injection, keeping it stable also in the holding phase. We've faced multiple discussions with the molding dept. in order to analyse the accuracy of the simulation, focusing mostly on the perfect positioning of the flow front during the filling. The final molded component produces according to the simulated set up perfectly overlaps the analysis results, proving an integrated approach and vision between simulation and moulding phases.
|Application field:||Automotive exterior|
|Part name:||Complete front grille|
|Part size:||580 x 330 mm|
|Nominal weight:||297 g|
|Nominal thickness:||2 mm - 3 mm (external frame)|