The objective of extrusion processing is the continual physical-chemical transformation of viscous polymers and the production of high quality structured products, thanks to the exact control of the processing conditions.
The double screw extruders are composed of screwed assemblies, coupled and co-rotating, mounted on fluted shafts positioned inside a closed barrel. Because of the wide range of barrel and screw designs, numerous screw profiles and process capabilities can be adapted taking into account the requirements of every process.
Thus, the double screw extruders can carry out the following processes: transport, compression, mixing, cooking, shearing, heating, cooling, pumping, molding, etc. with high ranges of flexibility. The primary advantage of the extruders of double screw reticulated and co-rotary is its remarkable mixing capacity, which confers distinctive traits to the extruded products and offers a significant worth to the processing units.
In the processes by extrusion of double screw, the raw supplies might be stable (powders, granulates, flours), liquids, suspensions, and presumably gases. The ultimate products are plastic composite, chemically customized polymers, textured meals and meals products, fiber pulps, etc.
Over time, double screw extruder has develop into the primary normal for many industries, because it gives innumerable advantages compared to the extrusion of a single screw:
– Larger consistency in production, and control of product quality.
– Larger flexibility, with capacity to produce a wide range of raw materials.
– From easy and straightforward upkeep, they allow to save energy and water.
– For straightforward cleaning thanks to the design CIP (cleaning in place).
– Improve in productivity thanks to continuous processing, quick begin-up and detention between phases of product transformation, quick conversion and advanced automation.
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