Die swell
In fluid dynamics and polymer science, die swell (also called extrudate swell or the Barus effect) is what happens when a polymer melt comes out of an extrusion die wider than the opening it just passed through. It sounds counterintuitive.
In fluid dynamics and polymer science, die swell (also called extrudate swell or the Barus effect) is what happens when a polymer melt comes out of an extrusion die wider than the opening it just passed through. It sounds counterintuitive.
In fluid dynamics and polymer science, die swell (also called extrudate swell or the Barus effect) is what happens when a polymer melt comes out of an extrusion die wider than the opening it just passed through. It sounds counterintuitive.
Source: Wikipedia "Die swell" · CC BY-SA 4.0
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