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During seasonal work, as practice shows, the paintwork is subject to damage, which leads to the appearance of corrosion foci on steel structures, the removal of which requires considerable labor. The applied paint coatings of agricultural machinery are short-lived, therefore, the development and implementation of new progressive methods of protecting parts of agricultural machinery from corrosion is important. (Research purpose) The research purpose is to extend the service life of agricultural machinery by creating an anticorrosive coating by supersonic electric arc metallization with subsequent application of paint and varnish coating. (Materials and methods) Abrasive blasting with corundum was performed for preliminary preparation of the surface of the parts before coating by electric arc metallization. A specialized installation for electric arc supersonic metallization «Dragon» was used for coating, zinc-aluminum wire Zn85/Al15 was used as the applied material. (Results and discussion) Selected equipment for the preparation of parts and assemblies and the application of anticorrosive coating by supersonic electric arc metallization. We have completed the layout of the site for coating. The modes of supersonic electric arc metallization were established. The modes of obtaining high-quality and durable coating of products were worked out on the basis of the Kaluga Region state enterprise «Kaluga Machine-Technological Station». (Conclusions) Anticorrosive treatment of products operating in aggressive environments is most effective when two coatings are applied sequentially: anti-corrosion layer by electric arc metallization and subsequent application of a layer of paint and varnish coating. The use of the technology of abrasive blasting and anticorrosive protection of housing and frame structures of agricultural machinery by the method of supersonic electric arc metallization allows extending the service life of these structures for 12 years.
Dobrin et al. (Sun,) studied this question.