Internal Bubble Cooling -

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

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

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 Numerical Study of Internal Bubble Cooling (IBC) in

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

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: