PolyTech developed WinTXU Screw Configuration Manager in 2004 as the future Windows interface for TXS. In the meantime, WinTXU has been highly

Transcription

1 PolyTech developed WinTXU Screw Configuration Manager in 2004 as the future Windows interface for TXS. In the meantime, WinTXU has been highly successful in the marketplace as a standalone screw design software tool while further developing this interface for WinTXS.

2 WinTXS currently supports virtually every ZSK machine model

3 WinTXS currently supports most common Berstorff models

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5 Select pre-defined L/D s or specify number of barrels to create custom shaft length

6 Double-click on barrel name or drag-and-drop icon from above

7 Double-click on element name or drag-and-drop icon from above

8 Inventory feature applies to elements and barrels enter current stock for each component in the table to the left. As you build a new screw design, WinTXU keeps track of remaining inventory

9 Change drawing colors, engineering units for storing process data Keeps track of shaft extensions so you know where to place elements to bridge the splice

10 The following screen shots show WinTXS assembly of the screw design/barrel profile is exactly the same as WinTXU. New screens have been added to WinTXS for entry of operating conditions, access of materials database and manipulation of simulation execution. For existing TXS users, all simulation parameters are the same as version 2.7xx.

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15 Specification for breaker plate, allows WinTXS to compute pressure drop

16 Specification for screens, allows WinTXS to compute pressure drop

17 Select one of the default die plates or click on Custom to enter new die geometry

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22 Adjusting coefficients are used to tune calculated pressure drop and temperature rise to measured/actual data

23 Inventory feature also now provided for WinTXS

24 WinTXS provides a choice of view for the screw design the mixed view (shown here) or side view can be selected by clicking on these icons.

25 Side view can be selected by clicking on these icons.

26 Click on the OPTIONS tab on the toolbar to open the options window

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31 Some parameters, formerly defined in the TXS initialization file (TXS.ini), now are user-definable during simulation execution

32 Calibration Factors (formerly defined using DEBUG in OPTIONS screen) are now easily accessed during simulation execution

33 Enabling the DEBUG mode in WinTXS provides adjustment of melting model, heat transfer, viscosity and shear rate. Adjusting these parameters, WinTXS simulation results are calibrated to match actual data for a given set of operating conditions.

34 Once the DEBUG parameters are identified that correlate simulation results with reality (e.g. torque, melt temp) subsequent changes in operating parameters, screw design, screw diameter, use these same values! Calibration Factors are the single largest advantage between WinTXS and all other simulation software products currently available

35 These parameters were formerly defined in the TXS initialization file (TXS.ini), now are user-definable during simulation execution

36 These parameters were formerly defined in the TXS initialization file (TXS.ini), now are user-definable during simulation execution

37 Define global conditions for simulation.

38 Define resin(s) for simulation.

39 Define solid fillers/liquid additives for simulation.

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41 Define process parameters for simulation.

42 Head pressure can be calculated from die geometry or input as a process parameter.

43 Material selection/editing, formerly done using TXM, is now selected using the Materials tab on the WinTXS toolbar

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45 Click on Generic Viscosity button to create a new resin with specified viscosity.

46 WinTXS can simulate using generic material properties select generic material type (e.g. PP, LDPE, PA6, PC, etc.) and specify melt flow rate. This unique feature, combined with Calibration Factors (DEBUG parameters) can provide quick and relatively accurate results without having actual material characterization simulation results can be adjusted to match actual machine performance (torque, melt temp, etc.)

47 List of generic resins which can be used for simulation

48 List of generic resins which can be used for simulation cont d

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55 Liquid additives can be specified as having a diluting effect (e.g. modify viscosity up/down) or a plasticizing effect (modify Tg).

56 Liquid additives can also be specified as having a lubricating effect, altering the melting behavior of resin if introduced prior to melting section.

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60 WinTXS has all features of existing TXS, latest release (version 2.7xx), in addition to improved screw design/documentation formatting and drag-and-drop user-friendly interface of WinTXU. WinTXS provides all currently-supported plotting with enhanced output compatibility: copy/paste simulation results and plots into any Windows application.