Category: Extrusion
-
PP copolymer hot water pipe
Polypropylene copolymer has been used for hot water piping in many countries and has a well established market. The material comes heat stabilized from the supplier. In South Africa the colour is normally red to distinguish it from other pipes. Installation of these pipes take into consideration the high thermal expansion of plastic materials compared to metals…
-
PVC Pipe Extrusion
We are pleased to send you some pictures of the quality UPVC lines we offer 1.1 16 to 40 mm 4 strand UPVC line 1.2 20 to 63 mm 2 strand UPVC line. 1.3 40 to 110 mm single strand…
-
Extrusion barrel temperature control.
Heaters: When you receive an extruder, the first action for temperature control is to check that the heaters are properly fastened to the barrel. When they are up to temperature it is best to check tightness again. To improve heater life significantly, set below 100 for 1 hour at start-up before entering the required temperature. Thermocouples:…
-
The purpose of a breaker plate in single screw extrusion.
Flow of the plastic in a single screw extruder is circumferential. Also, each flow channel if divided by a flight. The breaker plate has several functions:
-
Plastic Squeezer-Dryer
One method to remove water from plastics after a wash plant and reducing moisture to 2 – 5% is the energy efficient squeezer dryer. This has been found effective for films and fibers. What sets the squeezer apart is its grooved barrel, which utilizes shear heating and mechanical squeezing to eliminate moisture. A die-face cutter…