Foam Extrusion with Physical Blowing Agents—Practical Approach

Products ........................................................................................... 331 11.4 Partial Review of Foam Extrusion Equipment Offered by

Equipment Manufacturer .........................................................................333 11.4.1 ZE/KE (TSE/SSE) Foam Extruder Lines ....................................334 11.4.2 KE/KE (SE/SE) Foam Extruder Lines .........................................334 11.4.3 Empirical Correlation of Specic Rate versus Extruder

Diameter ..........................................................................................336 11.4.4 Turbo-ScrewTechnologyTurbo-Cool Screw .............................. 337

11.5 Selection Criteria of Screw Design for Foam Extruder ........................338 11.5.1 Selection of a Pilot Tandem Line of 90 mm/120 mm

Single-Screw Extruders ................................................................. 339 11.5.2 Heating and Cooling Arrangement for Extruders A and B

of the Pilot Line .............................................................................. 339 11.5.3 Monitoring Barrel Temperatures and Heat Transfer ................342 11.5.4 Heat Transfer Calculation .............................................................343 11.5.5 Data Acquisition of Experimental Values of Conventional

Screws versus ET Screws ..............................................................345 11.6 Comparison of Conventional Screws versus ET

Screws- Experimental ..............................................................................347 11.6.1 Comparison between MIFT and ET Screws at Identical

Temperature Settings ....................................................................347 11.6.2 MIFT Screws ...................................................................................349