Sheet Extrusion
- Home
- /
- Sheet Extrusion
Production process cast sheet Extrusion
During the process of extrusion of plastics, raw thermoplastic material in the form of small beads (resins) and/or regrind are gravity fed from a top mounted hopper into the barrel of an extruder. Additives such as colorants and UV inhibitors (in pellet form) are additionally used and can be mixed into the granulate prior to arriving at the hopper or added through a coextruder.
The material enters through the feed throat (an opening near the rear of the barrel) and comes into contact with the screw. The rotating screw forces the granule compound forward into the barrel, which is heated up to the desired melting temperature of the compounded plastic.
In most extrusion processes, a couple of heating elements are attached to the outside barrel in which three or more independent controlled heater zones gradually increase the temperature of the barrel from the rear (feed throat) to the front. This allows the plastic compound to melt gradually as it is pushed gradually through the barrel and this lowers the risk of overheating, hence degradation of the polymer.
KΞΞN ®
By implementation of the principle of a Circular Economy, CSX wants to become one of the leaders in Europe in developing plastic sheet materials and film.
Sustainable
CSX is not only considering existing generations, but also future generations. Due to their environmentally friendly production process CSX is aiming to produce to state of the art sustainable standards and beyond.
Clean
Environmentally friendly production processes are at the forefront of CSX. CSX strives for a system in which raw materials are fully re-deployed in a Circular Loop system.
Frequently asked questions about sheet extrusion
Sheet extrusion is a manufacturing process in which plastic pellets are melted and processed into flat film, sheets or panels. At CSX, this process is used to produce customised plastic products, for example in a specific thickness, size, colour or design.
We produce custom-made circular plastic sheets, films and plates. These products can be manufactured in a variety of colours, textures and layer configurations, depending on the application and the desired properties.
We work with materials including LDPE, MDPE, HDPE, HMPE, PP, HIPS, TPS and PLA. CSX prefers to use post-industrial recycled materials that are free from contaminants and/or bio-based materials derived from safe and clean raw materials.
We can add colourants, UV stabilisers, flame retardants and other organic additives, amongst other things. The suitability of these additives depends on the application and the desired product properties.