Increasing the technological process’ energy efficiency of the of applying multifunctional wear-and-heat-resistant protective coatings by electro-acoustic spraying

The article is devoted to measures improving the energy efficiency of the technological process of applying wear-resistant multifunctional composite protective coatings by the method of electroacoustic spraying. The proposed technique for increasing energy efficiency is based on the use of methods for optimal planning of an experiment using non-orthogonal matrices for planning an experiment and the obtained interpolation-regression equations for the output of the main parameters of the quality of processed products, micro-hardness and roughness, which were tested using the adequacy criterion. The optimization technique based on the criterion of minimizing the reduced energy costs, the technological process of applying wear-resistant protective coatings is based on the determination of the main modes of electro-acoustic spraying according to the specified quality parameters of the required surface layer of the processed mechanical engineering products, micro-hardness and roughness. As a result, from the whole set of solutions of the corresponding equations, we get the opportunity to select those operating modes of the electro-acoustic spraying station that correspond to the minimum values of the amplitude of ultrasonic vibrations and the voltage supplied to the inter-electrode space