Application of Twin Screw Extruder

With the development of engineering plastics towards high quality, high performance, and low cost, the diversification and compounding of plastic products have appeared worldwide. In recent years, people have developed high-performance twin-screw extruders to meet the requirements of plastic material modification, rationalize manufacturing processes.

The twin-screw extruder is a tool for homogenizing the composition of materials in the molten state. It has the advantages of high reliability, strong self-lubrication and less residual materials. In recent years, it has been widely used. Its performance mainly depends on the working condition of the screw and the performance of the structure. The design level and manufacturing quality of the screw are the key to ensuring its excellent performance.

Co-rotating twin-screw extruders are widely used in substrates physical and chemical modification of resin, such as filling, strengthening, toughening, reactive extrusion, etc. Due to the complexity of the structure, design and processing of the twin-screw extruder, and the imperfect theoretical development, the screw design is difficult, so a modular block-type twin-screw extruder with flexible operation, that is, screw elements and barrels, has appeared. The components are removable. The screw and barrel of the combined intermeshing co-rotating twin-screw extruder has the advantage that, for different material mixing requirements, a limited number and type of screw elements and barrel elements are used for multiple arrangements and combinations to optimize the design and adaptability.