Abstract
Purpose. Improve wear resistance of subsoiler bits by coating with new wear-resistant materials. Methods. Graphic, micrometer, comparative and field tests of locally hardened experimental parts of tillage machines. Results. A technology has been developed for restoring and strengthening subsoiler bits using new wear-resistant materials. Conclusions 1. According to the results of laboratory comparative tests of samples of wear-resistant materials deposited by detonation and plasma methods, compression sintering and surfacing, it was found that materials made of tungsten carbides Kutrite Carbide size and VK-8 have the highest relative wear resistance, respectively, 96.15 and 50 times higher, compared with hardened steel 65G, and titanium, chromium and nickel carbides – 54.34 times higher. 2. Based on the results of a production inspection of a batch of restored and strengthened deep-rippers bits in the soil conditions of UPI-AGRO LLC, it was found that the operating time of experimental deep-rippers bits is at the level of original parts and their resource is about 480 hectares per TG Gaspardo Artiglio R17820721 unit and 240 hectares on the Dante Macchine unit. Keywords: hardening, wear resistance, subsoiler bits.
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