Modernization of the Installation for Electric Erosion Dispersion

Abstract

Very often, powders of metals and alloys are used in the technologies of repair and restoration of parts, as well as when creating new parts. With the development of mechanical engineering, high requirements are imposed on such materials, which are associated with certain physico-chemical and granulometric indicators. Currently, a large number of different methods for producing metal powders are known. Many of them have a number of disadvantages: high energy consumption, irregular particle shape, the presence of impurities. The method of electroerosive dispersion is one of the most energy-efficient and allows to obtain metal powders with particles of the correct shape and small sizes. However, existing installations do not make it possible to bring the process to the industrial level due to outdated and low-power components of electrical circuits. (Research purpose) The research purpose is increasing the productivity and efficiency of the installation for electroerosive dispersion, as well as improving the quality characteristics of metal powders obtained with its use. (Materials and methods) Studied literary sources, scientific papers and patents, used the laboratory installation of the CCP "Nano-Center" FNAC VIM. (Results and discussion) Described the process of electroerosive dispersion, examined the principle of operation of the existing laboratory installation. It was revealed that this installation has a number of disadvantages that significantly affect performance indicators and efficiency. They proposed modernization options and developed a new electrical circuit of the most important unit of the installation, which was supplemented with auxiliary electronic components. The structure was equipped with fundamentally new nodes. (Conclusions) The proposed scheme of an upgraded installation for electroerosive dispersion provides an increase in productivity and efficiency and meets modern industrial requirements.