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What are the important functions of Parallel twin screw barrel

Update:Jun 19,2023
Parallel twin screw barrels are essential components used in various industries, particularly in plastic extrusion and compounding processes. These barrels are designed to accommodate parallel twin screw configurations, which consist of two screws running side by side within a cylindrical barrel. The parallel twin screw barrel plays a crucial role in facilitating efficient and uniform material processing, blending, and melt homogenization.

Manufactured with precision and expertise, parallel twin screw barrels are constructed using high-quality materials to ensure durability, resistance to wear, and corrosion protection. The inner surfaces of the barrel undergo specialized treatments such as nitriding or bimetallic lining, which enhance their hardness and resistance to abrasion caused by the interaction with the processed materials.

The design of parallel twin screw barrels allows for optimal mixing and dispersion of materials. As the material moves along the length of the barrel, the intermeshing screws generate a forward conveying action, ensuring a consistent flow of the material through the extrusion process. This results in improved melt quality, reduced variations in output, enhanced product consistency, and enhanced control over process parameters.

Parallel twin screw barrels are versatile and can handle a wide range of materials, including thermoplastics, elastomers, masterbatches, and various other compounds. They find applications in industries such as plastics extrusion, polymer compounding, recycling, and food processing, among others. Their ability to handle different material viscosities, provide efficient dispersive and distributive mixing, and accommodate additives and fillers make them indispensable in the manufacturing of high-quality plastic products.

To ensure optimal performance and longevity, parallel twin screw barrels require regular maintenance, including cleaning, inspection, and occasional replacement of worn components. Regular maintenance helps to preserve the barrel's performance and extend its service life, minimizing downtime and maximizing productivity.

Parallel twin screw barrel for plastic extruder machine

Product Name: Parallel twin screw and barrel
Barrel - Material: 38CrMoAlA high-quality alloy structural steel
Barrel - Quenched and Tempering Hardness: HB260-280
Barrel - Nitriding Hardness: HV950±50 degrees
Barrel - Nitride Layer Depth: 0.4-0.6mm
Barrel - Brittleness: ≤2 levels
Screw - Material: 38CrMoAlA high-quality alloy structural steel crown spray-welded nickel-based alloy powder
Screw - Alloy Thickness: ≥1.5mm
Screw - Hardness: HRC53-56
Scope of Application: PA/PET/PP/PE/XLPE/masterbatch,plastic that is not easily decomposed, blended, filled, glass fiber reinforced
Surface treatments: Including: quenching & tempering, nitriding, hard chrome-plated, bimetallic alloy coating, through hardened.