The main problem in injection molding under pressure - to provide high quality products for maximum productivity. Implementation of these requirements in injection molding by the properties of the material terms and conditions processing, design and technological features of injection molding machines. Conditions in molding plastics depend on the material properties, technological parameters of processing, as well as technical and technological performance injection molding machines. At the present stage of molding plastics is constantly being improved - namely, improving the quality of molded products. Increase productivity in injection molding is possible with the establishment of new machines and design parameters which take into account the specific properties in injection molding, especially in injection molding process and provide a variety of technological regimes casting, allowing to obtain products with required properties, as well as the automation of process control casting. Mastication - a preliminary operation in injection molding, and it affects an important technological parameter - temperature in injection molding, which goes to the molding, and the temperature uniformity. The temperature in injection molding defines the properties of the melt, which, in turn, determine the processes of formation (Hydrodynamic, plastic structure formation).
In connection with this process of mastication in molding plastic molding process depends on fluid dynamics and its stability, as well as the quality of cast products and stability of their properties. The process of mastication in injection molding defines performance injection molding machine (machine parameter). For casting molten plastic material is attached to the required configuration of the product during its course (in a plastic condition) in a closed mold cavity tool (form) under the influence of external factors (pressure). Purchased the configuration further in injection molding recorded after the transfer of plastic in the solid state by cooling (for thermoplastics).