COMPUPLAST® Virtual Extrusion Laboratory - Blown Film Extrusion

The COMPUPLAST® Blown Film Extrusion Package™ can be used to simulate the components of virtually any tubular film extrusion line configuration including the production of multi-layer blown films to help troubleshoot and optimize the process. It can be used to study the effect of changes in processing conditions, materials and equipment design.

The COMPUPLAST® Blown Film Extrusion Package™ can help the user visualize the material behavior anywhere inside the blown film extrusion process. It can handle virtually all die geometries like cross-head/side-fed dies, spiral mandrel dies (flat and cylindrical) and multi-layer dies. The package can be used to evaluate existing equipment or engineer new designs. The results not only include the flow distribution but also the shear stresses that may result in material stagnation inside the die and/or poor surface quality at the die exit.

The package can be applied to both mono-layer and coextrusion processes. As such, problems like interfacial instabilities can also be solved.

With the Blown Film Extrusion Package, the user can avoid many problems due to improper equipment design and also reduce the number of physical experiments when developing a new product.

The COMPUPLAST®, Virtual Extrusion Laboratory™ for Blown Film consists of several modules that can be purchased individually, or in combination, to simulate the various components in a Blown (Tubular) Film Extrusion Process. 

The applicable VEL™ Modules are:

The VEL™ for Blown Film has been developed with the extrusion process engineer in mind. 

These modules can be used to help:

  • Optimize Screw Designs
  • Optimize Flow Channel
  • Optimize Mono or Coex Die Design

The versatility and ease of use have truly made the COMPUPLAST™ VEL™ a valuable CAE tool.

The Virtual Extrusion Laboratory™ for Blown Film is also a very useful and powerfultool for assisting with material selection for product/structure development and process troubleshooting on existing lines. The modules can be used to help:

  • Optimize Material Selection
  • Optimize Coex Structures
  • Troubleshoot Process Problems
  • Minimize Down Time
  • Maximize Production

The Blown Film Extrusion Package can help the user understand/solve the following problems:

  • unbalanced /uneven flow at the die exit
  • poor surface quality
  • material degradation inside the die and slow purging/color change
  • instabilities in coextrusion
  • problems related to the extruder performance such as surging, material overheating, material degradation and burning