Kuban State Technical University (Krasnodar, Russia)

A. E. Litvinov, Dr. Eng., Associate Prof., Prof., Head of the Dept. of Technical Mechanics and Special Machines named after Prof. A. A. Petrik, artstyleone@mail.ru
L. S. Khakhulin, Postgraduate Student, Dept. of Technical Mechanics and Special Machines named after Prof. A. A. Petrik, Khakhulin33@mail.ru

Wear of working bodies of soil-tilling implements is one of the key problems having the effect on efficiency of soil treatment and quality of agricultural products. Gradually these working bodies are subjecting to essential mechanical, physical, abrasive and corrosion loads, what leads to deterioration of their operating parameters and decrease of service life, lowering of treatment depth and increase of draught resistance of an assembly. The fundamental analysis of applicability of protective coatings becomes necessary for optimization of assemblies operation and rise of economical efficiency in agricultural production. The results of this research can be applied in production of cutting blocks, with decrease of operating expenses and rise of economical efficiency in agricultural area. The research presents preparation to examination of operating efficiency of protective coatings, which were applied on working bodies of soil-tilling implements via three advanced methods of gas-thermal spraying. The aim of this research was comparative analysis of wear resistance and resource of the components after application of hard alloy coating, which was obtained via high-speed gas-thermal spraying, and the layer, which was formed via cold gas-dynamic spraying. The second experimental part of this work includes description of applied presented protective coatings, with comparative analysis of their efficiency. It is planned to provide analysis of wear resistance after mounting the working bodies in the assembly and their resting in real conditions. The novelty of this research is formulated as use and testing of new protective coatings and their combining, in order to increase operating resource of assemblies. These coatings were applied previously in production of metal-working equipment, but they were not used in manufacture of steel working bodies of soil-tilling implements.

The research was carried out under financial support of the Kuban scientific fund within the framework of the project No. N-25.1/36.

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