\▐swәr(-ә)l\ n (15c) A term applied to visual and tactile surface roughness sometimes observed in the structural-foam-molding process. It results from jetting at the gate of the mold, causing surface wrinkling as the polymer melt flows along the wall of the mold. The condition can be alleviated by measures such as reducing the filling speed and raising the temperature of melt and/or mold.
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© 2011 Springer Science+Business Media, LLC
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Gooch, J.W. (2011). Swirl. In: Gooch, J.W. (eds) Encyclopedic Dictionary of Polymers. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6247-8_11473
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