Improvement of wear resistance of working elements from gray iron for development of the ground

Abstract

Abstract The question of increasing the wear resistance and resource of working elements for the development of soil through the use of sound technological methods of manufacturing them from inexpensive materials is considered. Increased tribological characteristics of the working elements are achieved by optimally structuring them into functional areas, depending on the perceived loads and peculiarities of the working conditions. According to the results of research, a promising material for the manufacture of chisel plows bits - gray cast iron is proposed. Gray cast iron SCh 20 with a bleached layer on the working surface with a thickness of about 2 mm has higher tribological characteristics as compared to rolled steel, as well as technological and economic advantages in production due to the use of casting technologies.