Internal Bubble Cooling | 8K 2024 |

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

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

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: Fresh, often chilled air is blown into the