Evaluation of the influence of the cone shape of the extruder body on the law of pressure distribution along its length

The problem of theoretical description of the law of distribution of the material's internal screw pressure as a function of the friction forces distributed along the length of the screw surface and the concentrated mechanical resistance of the counter-rotation ribs, made in the form of multi-pass collars on the inner surface of the conical extruder body, is set and solved by methods of differential calculus. The developed mathematical model of the extrusion process allows optimizing the design and technological parameters of equipment based on criteria not only energy efficiency and material consumption, but also the quality of processed raw materials. The results obtained are in agreement with the known theoretical [1, 2] and experimental materials of research on extrusion processes.