Extrusion Anomolies - Plate Out, 1999 Polymers, Laminations & Coatings Conference Proceedings
By: Dwight A. Holtzen and J. A. Musiano
DuPont White Pigment and Mineral Products
Chestnut Run Technical Service Laboratory
Wilmington,Delaware
Relentless deposition of debris on extruder die surfaces negatively affect productivity during extrusion processes. Removal of these unwanted deposits is often the source of much down time. This paper will review previously published reports (1, 2) and present new data regarding the accumulation of compound remains on extrusion dies and extruder screws. A proposal of how these relate to simple rheological properties of the materials being processed will be given.