What are the application places of twin-screw extrusion granulator- Zhoushan Jiading Plastic Machinery Co., Ltd.

The screw barrel for recycling granulation is widely used and can be applied to the processing of various materials, and can achieve high output, high quality, high efficiency and other characteristics. Although its structure is complex, it still receives widespread attention and rapid development. In recent years, with the development of new products and new technologies such as synthetic materials and fine chemicals, there are more and more special or special states of polymers, making twin-screw extruders more and more widely used. At present, the trend of twin-screw extruders in the world is to develop in the direction of high torque, high speed and low energy consumption.

Single extruder screw barrel for EVA film

Single extruder screw barrel for EVA film

According to different raw materials and products, the screw can be chosen: general type, pin type, barrier type, separation type, and vented type, pipe, sheet, blowing film, wire drawing and Granulating etc.

Single screw extrusion screw barrel can be applied to PP, PE, PS, ABS, PC, PMMA, PVC, TPU and other thermoplastic pipe, sheet, sheet bar, profile and so on. For different raw materials and product specifications, the screw uses different aspect ratio and compression ratio, the barrel uses a different structure. To meet the processing needs of high-quality products.

The twin-screw extrusion granulator has good mixing and plasticizing basic functions, and its great feature is that PVC powder can be directly extruded for production and processing. The screw geometry can also be used for extrusion, production and processing of other materials, but the advantages still exist for PVC extrusion production and processing. The specifications and models of the twin-screw extrusion granulator are determined according to the specifications and models of the plastic section, and then selected by the extrusion volume. When the plastic processing and extrusion molding process conditions are basically the same, the conical twin-screw granulation function meets the larger head pressure, and the parallel twin-screw granulation function meets the smaller head pressure.

In the twin-screw extrusion granulator, the thread of one screw is inserted into the thread groove of the other screw at the toothing, so that the continuous thread groove is divided into C chambers that are isolated from each other. When the screw rotates, it will move with the axial movement of the meshing part, and the C chamber will also move axially. Every time the screw rotates, the C chamber will move forward by the distance of the lead, and C will move forward due to the thrust of the meshing thread. , the material in the cubby blocks the rotational tendency of the material to hug the screw and is pushed forward by the thread. There will be no backflow or stagnation during transportation, so it has a great capacity for forced transportation.