| 摘要 |
<p>The present invention discloses an extrusion die module (10) having a flat compression seal (18, 24) surrounding a conical or otherwise angled spillover surface (20, 26). The die module (10) promotes a flat surface to flat surface compression seal (18, 24) outside of the flow distribution channels and promotes better streamlined flow and material combination than a traditional flat disk die module. The die module (10) promotes a reduced overall diameter and wetted diameter in comparison to standard flat disk dies. In addition, the conical or angled spillover surface (20, 26) is surrounded by the planar sealing surface (18, 24). Further, the present invention relates to a method for utilizing an extrusion die module (10) with a conical or otherwise angled spillover surface (20, 26) to minimize the die surface area wetted by an intermediate layer in a multi-layer coextrusion process.</p> |
