Increasing the Wear Resistance and Other Life Characteristics of Materials of Tillage Tools

摘要

Issues related to the study of wear resistance, strength, and other material characteristics of parts of tillage machinery are addressed. The importance of improving the heavy-duty tool of domestic tillage machines is evaluated. Chemical compositions and mechanical properties of steels for tools of agricultural machines of leading European manufacturers are given. New grades of steel for high-strength rolled products have been developed. Comparative results of laboratory bench tests for wear resistance of commercial and prototype domestic and foreign grades of rolled steel and powder hard-alloy coatings are presented. An effective technology for hard-facing of wearable parts of tillage machinery is substantiated and analyzed. Verification comparison performance and life-cycle tests of tools manufactured using new materials and facing technology were carried out. The life of the prototype tools was increased by a factor of 2.8 to 3.8. The market potential of using new materials science and technology developments in Russian agricultural production is assessed.