The numerical results suggest that Internal Bubble Cooling (IBC) equipment introduces distinctive design and operation challenges. ResearchGate Digital Internal Bubble Cooling - Addex Inc.
As this air touches the hot plastic (molten polymer), it absorbs heat. INTERNAL BUBBLE COOLING
A complete IBC "piece" or system typically includes several integrated parts: The numerical results suggest that Internal Bubble Cooling
In a standard blown film process, molten plastic is extruded through a circular die to form a tube, which is then inflated into a bubble. IBC systems add a sophisticated air-exchange loop inside this tube: pulls the warm air out.
A dedicated exhaust pipe, usually located in the middle of the die, pulls the warm air out.