Synthesis of multifunctional composite coatings with improved anti-friction properties for agricultural machinery

Abstract

The article is devoted to the synthesis of multifunctional composite coatings with improved antifriction properties in a complex acoustic field realized by means of two quasi-coherent sources of ultrasonic vibrations. The developed device for acoustic synthesis, which is based on the cavitation effect, allows developing high effective pressure values from 100 to 1000 bar in the shock wave, when the cavitation cavity collapses. The highly concentrated effect of the device on the composition ingredients synthesizes new compounds, are impossible to obtain under ordinary conditions. The process is fully controllable and allows imparting unique properties to the finished product, among which a special place should be given to the variable value of the friction coefficient. It depends on the external load and the high wear resistance value of the surface layer of the multifunctional composite protective coating. There is a problem of improving the energy efficiency of agricultural machinery and equipment. The solution to this problem is associated with the use of innovative technologies based on implementing the highly concentrated energy sources. The aim of the research is to optimize the process of obtaining multifunctional composite coatings with improved antifriction properties based on mass transfer of the electrode material and the subsequent formation of structures with predicted physical and mechanical properties. In order to achieve this goal, a generalized model of applying multifunctional composite coatings using the electro-acoustic spraying method has been developed.