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:
Numerical Study of Internal Bubble Cooling (IBC) in Film Blowing INTERNAL BUBBLE COOLING
Modern systems, like those from Addex Inc. or TSM Control Systems , use ultrasonic sensors to monitor the bubble's diameter. These sensors trigger automated blowers or valves to maintain a perfectly stable size. Core Components In a standard blown film process, molten plastic
A dedicated exhaust pipe, usually located in the middle of the die, pulls the warm air out. These sensors trigger automated blowers or valves to
The numerical results suggest that Internal Bubble Cooling (IBC) equipment introduces distinctive design and operation challenges. ResearchGate Digital Internal Bubble Cooling - Addex Inc.