Abstract
The science of repair and restoration of components and parts of agricultural machinery was actively developed in the conditions of the planned economy of the country in the 1950-1980 s. The work of the network of specialized repair plants, maintenance stations, diagnostic points deployed in all regions of the country was based on the scientific and technological basis created by domestic scientists. A great contribution to the accumulation of significant scientific and practical experience in the restoration of agricultural machinery was made by the scientific school of the Chelyabinsk Institute of Mechanization and Electrification of Agriculture, headed by I.E. Ulman. (The purpose of the study) TTo analyze the directions of research and development in the field of creating a system for organizing and carrying out maintenance and repair of agricultural machinery and to identify its role in the development of the agro-industrial complex of the region. (Materials and methods) Determined that the beginning of work I.E. Ulman is associated with the development of experimental research methods on various friction units of mechanisms and machines in the laboratory of the Leningrad Polytechnic Institute named after M.I. Kalinin and industrial training at the Putilov plant. (Results and discussion) The scientific research of the I.E. Ulman school covered the following main areas: research and development of technological processes for the restoration of worn parts by electrophysical methods; evaluation of the reliability of repaired units and restored parts by accelerated testing methods; diagnostics of mobile equipment units in the process of their repair, research and development of organizational bases for maintenance and repair of machines, restoration of worn parts of a wide range. (Conclusions) The scientific school of I.E. Ulman has made a significant contribution to the development of technologies for restoring worn-out machine parts with various coatings (galvanics, vibro-arc surfacing, baking metal powders).
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