Screw Barrel For Extrusion Of Sheets is a key device designed for plastic sheet extrusion and is suitable for many types of plastic materials. These materials include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), etc. Each material has its own unique physical properties and application scenarios, and has a wide range of applications in industries ranging from packaging and construction to electronics, automobiles, and medical.
Screw Barrel For Extrusion Of Sheets plays a vital role in the extrusion process. It consists of a screw and a barrel, which is responsible for pushing plastic particles from the feed area to the discharge port of the extruder barrel while mixing and melting the materials. The heating system around the barrel helps heat the material to the appropriate extrusion temperature, while the cooling system controls the final temperature of the sheet to ensure that its size and performance meet the specifications.
These screw and barrel devices are usually made of high-strength and wear-resistant alloy steel or nickel-based alloys, which can withstand high temperatures, high pressures, and friction to ensure long-term stable production. Its precise design and material processing capabilities ensure high quality and efficiency in sheet production.
In practical applications, different types of plastic materials require different extrusion parameters and processes. For example, for thermoplastics such as polyethylene (PE) and polypropylene (PP), higher extrusion temperatures and pressures are usually required to ensure that the material is fully melted and achieves the required physical properties. For plastics with good thermal stability such as polyvinyl chloride (PVC), special heating and cooling controls are required to avoid material decomposition or degradation.