Extrusion

Conventional extrusion dies “supply” lateral distribution qualities of different precisions depending on the viscosity and the surface tension of the film cast material. Variations of more than 20% are not uncommon. The state of the art regarding the dependence of the lateral distribution on the mass flow and the viscosity, is generally known. However, this is undesired in many applications, because in production lines mass flow and viscosity changes have to be made several times each day. This is linked to unavoidable variations in the lateral distribution precision if the same extrusion die is used. The use of multiple extrusion dies would be necessary to ensure the desired lateral distribution precision for changing viscosities and mass flows. However, this cannot be realised due to the high associated investment costs.

Due to the current set of problems described above, FMP TECHNOLOGY GMBH created new innovative extrusion dies for film casting that did not lead to changes in the lateral distribution precision of the applied layer thicknesses.

Advantages of FMP Extrusion Dies:

Elimination of thermal deformation due to special steel

Armoring for increasing of durability

Heatable up to 450 Degree C

Pressure Consistency (max. 350 bar)

Processing of multiple materials (PE, PP, PA, LDPE, LLDPE, mPE, ABS, PMMA, PC, PVC, Schaum, etc.)

Production of different film thicknesses (min. 1 µm)

Film casting of one or multi layer

Guaranteed independence from the film cast material viscosity and mass flow

Guaranteed accuracy of the cross web film layer (±1%, ±3%, ±5%)

Laminar flow guarantees no Agglomeration inside of the die

Modularly constructed up to widths of more than 4.000 mm


Applications:

  • Plastic foils (office, decor, strech, lamination, protection, barrier foils, etc.)
  • Plates (construction, insulation boards, foam plates, etc.
  • etc.