Screw barrel is the core component of plastic processing equipment, and its design principle directly affects production efficiency and product quality. The design of the screw barrel requires consideration of several factors, including the properties of the plastic material, the requirements of the processing process, and the shape and size of the product. So, what is the design principle of the screw barrel?
First of all, the design of the screw barrel needs to consider the characteristics of the plastic material. Different types of plastics have different melting temperatures, viscosities and fluidity, so the design of the screw barrel needs to determine the heating, cooling and extrusion parameters according to the characteristics of the specific plastic material. At the same time, the thread structure of the screw barrel also needs to be optimized according to the characteristics of the plastic material to ensure that the plastic can be melted and extruded evenly in the screw barrel.
Secondly, the design of the screw barrel also needs to consider the requirements of the processing process. Different plastic processing processes, such as extrusion, injection molding, blow molding, etc., have different requirements for the design of the screw barrel. For example, in the injection molding process, the screw barrel needs to be able to quickly inject molten plastic into the mold, so it is necessary to design suitable screw flights and feed channels. During the extrusion process, the screw barrel needs to provide sufficient extrusion pressure and temperature to ensure that the plastic can be evenly extruded.
In addition, the shape and size of the product also have an impact on the design of the screw barrel. Products of different shapes and sizes require different extrusion and molding methods, so the design of the screw barrel needs to be adjusted according to product requirements. Some products with complex shapes may require multi-segment screw barrels to achieve different extrusion and plasticizing processes.Parallel cylindrical screws for PE PP sheet product
Twin screw and barrel type: CINCINNATI, BATTENFELD, KRAUSSMAFFEI, BAUSANO, MAPLAN and AMUT model spares.
The screw of the series consists mainly of two parallel cylindrical screws, which rotate to the opposite direction. Parallel double screw rotational speed is low, less heat, shear stability of the materials in the barrel, uniform, screw of material conveying ability is strong, have good exhaust effect at the same time, is conducive to the stability of product quality.
The main applications: Includes PVC pipe & profile extrude, PP/PE sheet product.