ANALYSIS OF WEAR NATURE IN THE SCREW ASSEMBLY OF SO-150 TYPE PLASTERING UNITS

The screw mechanism is a key element of plastering equipment that ensures mortars transportation. During operation, its working surfaces are subject to intensive wear, which affects the productivity, supply uniformity and energy consumption of equipment. The paper investigates the mechanisms of material degradation, in particular the influence of abrasive and hydrodynamic wear. The wear intensity has been found to depend on the physical and mechanical properties of building mixtures, part geometry, and operating conditions. An analysis of the materials used to manufacture screw mechanism elements was performed, and measures were proposed to increase their durability. It has been established that the use of wear-resistant materials and optimization of geometric parameters allows to reduce the intensity of wear, extend the service life of the unit and reduce maintenance costs.