Method of electroacoustic spraying allows getting ordering of material remote structures by complex energy interaction and ultrasound field. Complex interaction influences on strengthening surface is leading to a thin film formation, which gives a strong base for the basic material by formation of forecasting structural phase contain for getting protective wear-resistant films and also thanks to interaction forces between a film and a particle location.
The threshing process consists of a number of elementary technological operations, the duration of each of which proceeds during a time of 0.002-0.004 s. surrounded by one bar. In this article we present the calculation of the parameters of the threshing zone using the law of compression. A model of an elementary technological operation has been developed that makes it possible to determine probability of threshing, Calculate the parameters of the working elements of the output zone of the underdrum space of the threshing apparatus of a combine harvester.
The article considers a number of models for describing threshing technology, which is associated with a variety of physical and mechanical properties of plants under different threshing conditions. The analysis of determining the position of a site with a relatively high resistance to the movement of plant mass is carried out, which may allow taking constructive measures to increase the speed of stems and reduce their damage for threshing machines of different sizes. The main components of the threshing medium in the threshing space are stems and grains. When studying the regularities of the threshing and separation processes, various models of the components of the threshed mass are used, reflecting to varying degrees the essential aspects of the phenomena under study. The given models of the threshed mass expand our understanding of the picture of what is happening in the threshing space.
The control of obtaining the predicted physico-mechanical properties of protective coatings of machine parts in a complex acoustic field by the method of electroacoustic spraying is carried out through the use of highly concentrated sources of electrical energy. The prediction of the physico-mechanical properties of the hardened surface of machine parts is made on the basis of the experiment planning methodology with non-orthogonal planning matrices. The adequacy of the obtained mathematical models was carried out using the criterion of adequacy of Fisher. Physical fundamentals of mass transfer of materials to a substrate in a complex acoustic field, realized through the transformation of longitudinal vibrations, to longitudinal-torsional, have been developed, while the amplitude of oscillation of the acoustic system is 5 to 15 micrometers. The use of longitudinal-torsional ultrasonic waveguides in this process and ultrafast cooling temperatures make it possible to form elements such as carbides, carbonitrides, and intermetallic compounds on the surface of a conductive material. The subsequent impact with a shift against the surface produced by the waveguide - electrode leads to irreversible microplastic deformations of the surface layer, which provide the specified parameters of surface quality and its physico-mechanical properties.
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