Internal Bubble | Cooling

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

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:

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

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

The numerical results suggest that Internal Bubble Cooling (IBC) equipment introduces distinctive design and operation challenges. ResearchGate Digital Internal Bubble Cooling - Addex Inc. A complete IBC "piece" or system typically includes

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

Fresh, often chilled air is blown into the center of the die to inflate the bubble. ResearchGate Digital Internal Bubble Cooling - Addex Inc

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