On 15.02.2017 during the workshop held within the scope of T 5.1a and dedicated to NEWEX project staff, Janusz W. Sikora from Lublin University of Technology gave all-day practical laboratory classes on the issues concerning the construction and operation of the plasticizing systems of extruders and injection moulding machines. In the first part of the Workshop the secondment participants from ZES and BOR as well as members of the LUT team got to know the construction and operation of a single-screw extruder W-25 as well as a twin-screw co-rotating extruder EHP 2 x20 S Line. They saw the construction of the barrel and the screw and got acquainted with different metal elements of intensive shearing and mixing. It was described step by step how the injection moulding machine Arburg Allrounder 320C equipped with the robot Multilift select 6 operates. The second part of the workshop consisted of the demonstration of the operation of the extruder W-25 and EHP 2 x 20 S Line as well as the injection moulding machine Arburg Allrounder 320C. Various polymers of different mass flow rates and densities were extruded and injection moulded. It was shown how the organic filler (fragmented pumpkin scales), non-organic filler (iron powder) and nanofiller (Montmorillonite – MMT) influenced the behaviour of polymer in the plasticizing systems.
