Internal Bubble Cooling May 2026

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

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

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 INTERNAL BUBBLE COOLING

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

A dedicated exhaust pipe, usually located in the middle of the die, pulls the warm air out. Numerical Study of Internal Bubble Cooling (IBC) in

Fresh, often chilled air is blown into the center of the die to inflate the bubble.

A complete IBC "piece" or system typically includes several integrated parts: These sensors trigger automated blowers or valves to

is a specialized air-management technology used in blown film extrusion to increase production speed and film quality. By constantly exchanging the air inside the inflated plastic "bubble," IBC systems remove heat from the internal surface, allowing the plastic to solidify faster than with external cooling alone. How IBC Works