Numerical Study of Internal Bubble Cooling (IBC) in Film Blowing

As this air touches the hot plastic (molten polymer), it absorbs heat.

A complete IBC "piece" or system typically includes several integrated parts:

A dedicated exhaust pipe, usually located in the middle of the die, pulls the warm air out.

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

The numerical results suggest that Internal Bubble Cooling (IBC) equipment introduces distinctive design and operation challenges. ResearchGate Digital Internal Bubble Cooling - Addex Inc.