PSI - Issue 33

Taoufik Hachimi et al. / Procedia Structural Integrity 33 (2021) 907 – 916 HACHIMI Taoufik et al. / Structural Integrity Procedia 00 (2021) 000–000

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2.3. Extruder manufacture This extruder machine was manufactured using many components:

Table 1. Extruder machine components

Components Turning screw Steel Tubes The hopper Copper tube The heaters Locking nut Shaping die Support plates Thermal isolation

QTY

1 1 1 1 1 2 2 2 2

2.3.1. Turning screw The turning screw used has 16mm in diameter and 150mm as a total length, assures the transfer of thermoplastic materials, in order to be extruded in different final forms aimed, thanks to its rotation around its axis of revolution and the geometry of the flights which have 20 of width for each, while fixing the pitch in 43,5mm between every two successive flights with 6,05 of channel depth. a b

Fig. 3. (a) Design of Turning screw; (b) Turning screw geometry

2.3.2. Steel Tube (Chamber): This tube works as chamber housing for the screw. The raw material is fed into the chamber through the screw. The tube used has 16mm in internal diameter, 25 in external diameter, and 150mm in length. with a hollow area in the lateral surface which is consecrated for the material feed, as shown in Fig. 4.

a

b

Fig. 4. (a) Steel tube geometry; (b) Design of the steel tube