| Title: CO-ROTATING TWIN SCREW EXTRUDER MODELING PROGRAM Author: J. White et al.
Disclosure 152 Copyright registered
A computer model, personal computer (PC) based, that relates to a co-rotating twin
screw extrusion and can be used to model the flow of thermoplastic materials in such an
extruder. By modeling the interaction of modular components in such an extruder, the
blending characteristics of particular thermoplastics may be determined.
This user-friendly software can be used for blending, compounding, devolatilization and
reactive processing.
Version 1.x - Non-Newtonian and Isothermal; flow simulation and calculation of pressure
and fill factor profiles
Version 2.x - Non-Newtonian and Non-Isothermal; computes temperature profiles while
retaining all features of Version 1.0, and can also handle multiple feed ports/streams.
Version 3.0 - Advancements made to Ver. 2.x. includes such enhancements as graphing of
solid conveying, melting and average residence times, so the user does not have to specify
melting locality; graphing of screw torque and power consumption; and liquid injection and
powder stuffing, features that can handle multiple point addition of any kind of material,
providing the rheological properties of the mixture are known.
Extruder models currently included in the licensed version database are Werner and
Pfleiderer ZSK 30, ZSK 40, ZSK 53, ZSK 57, ZSK 58, ZSK 70, ZSK 83, ZSK 90, ZSK 92, ZSK
130, ZSK 133, ZSK 160, ZSK 300; Japan Steel Works TEX 30, TEX 44, TEX 65; Berstorff ZE 60;
Clextral BC 21 and BC 105. Others models recently added include Comacplast 40mm and 58mm,
and others can be added as data becomes available.
This software gives the user unique capabilities to scale-up processes from one
extruder system to any another system, regardless of manufacturer or brand name of
equipment (i.e. W&P ZSK 30 (most popular) -> Berstorff ZE 60 -> JSW TEX 65 ->
Clextral BC 105-> W&P ZSK 300) as long as extruder model is in the data base.
A free demonstration disk is available upon request or from Temarex's home page
at http://www.temarex.com/extrus.htm. The
demonstration software only has the Werner and Pfleiderer ZSK 30 included in the database. |
