Kyzylorda, Kazakhstan
When developing new methods to make hardening coatings on the cutting tool surfaces of tilling machines, the main characteristic parameter determining the ability to serve for a long time, resisting external environmental influences and mechanical wear, is wear resistance. At the same time, this parameter should be determined before life tests in the field. Various stands and installations are available for this purpose. Each of them is characterized by their own advantages and disadvantages. Therefore, based on the specific production conditions, new devices are being developed. In this paper, a rotary-table installation of a specific design is developed for life tests of abrasive wear of various parts. A patent is obtained for it. The differences of this installation from existing analogues are the following: 1 – the pressure of the abrasive material layer on the test sample is regulated by deepening the sample into the abrasive medium; 2 - the test sample is under constant influence of the abrasive material by filling it with the required amount of abrasive materials; 3 – higher efficiency of the installation. This is achieved due to lower power consumption in the absence of friction forces between the sample bracket and the abrasive material. Comparative life tests were carried out for two harrow teeth, the original tooth and the hardened one. The harrow teeth were tested on a simplified model of a developed installation. An experimental inverter vibration control unit of Kazan Federal University was used for treatment. Hardening was performed with a multi-rod electrode at an arc current of 60A. The frequency of the electrode vibration is 100 Hz. Tests show that the service life of hardened harrow teeth when treated by a vibrating arc with a multi-rod electrode is about 5-6 times higher than the service life of factory harrow teeth.
life time, wear resistance, installation, hardening, test, harrow tooth, abrasive wear, machine, element, electrode
1. Zatsarinin AA. Increasing the resource of trapezoid ploughshares of general purpose ploughs [dissertation]. [Moscow (RF)]: 2006.
2. Reznik NE. The theory of blade cutting and the basics of calculating cutting devices. Moscow: Mashinostroenie; 1975.
3. Lyakhov AP. Substantiation of the constructive and technological parameters of the working bodies of a row cultivator [abstract of dissertation]. [Stavropol (RF)]; Stavropol State Agrarian University; 2009.
4. Magomedov RA. Increasing the resource of plowshares by forming a wear-resistant coating based on cast iron [dissertation]. [Zernograd (RF)]: 2013.
5. Mamedova MD. Diesel operation on liquefied gas. Moscow: Mashinostroenie; 1980.
6. Tkachev VN. Wear and increase in durability of soil tiller elements. Moscow: Mashinostroenie; 1984.
7. Sharifullin SN, Adigamov NR, Kudryashova EYu, Romanov IV, Bainiyazova AT, Abzhaev MM. Metallographic studies of samples made of 65G steel subjected to complex treatment by electrospark and vibration arc discharges using cermet powders. Journal of Agriculture and Environment. 2019;4(12):1-13.
8. Bayniyazova AT, Abzhaev MM, Kudryashova EYu, Fayzrakhmanov IA, Sharifullin SN. Vibro-plasma hardening of wprking elements of agricultural machines. Machinery Technical Service. 2020;1(138):132-142. DOI:https://doi.org/10.22314/2618-8287-2020-58-1-132-142.
9. Bayniyazova AT, Abzhaev MM, Sharifullin SN. Hardening of the working bodies of agricultural machines by electric spark and vibratory arc processing. IOP Conf. Series: Materials Science and Engineering 915: 2020. doihttps://doi.org/10.1088/1757-899X/915/1/012006.
10. Sharifullin SN, Denisov VA, Zadorozhny RN, Zuevskiy VA, Abzhaev MM, Bayniyazova AT. Nanostructuring of the surface layer of the working bodies of agricultural machines with alloyed elements by the method of vibroplasma treatment. International Journal of Nanotechnology (IJNT). 2021;18(9/10):903-914. DOI:https://doi.org/10.1504/IJNT.2021.118164
11. Sharifullin SN, Abzhaev MM, Bayniyazova AT. Simulation of the process of electric spark hardening of the surfaces of machine parts and mechanisms. High Energy Chemistry. 2023;57:193-199.
12. Sharifullin SN, Bayniyazova AT, Abzhaev MM. RF patent for innovation No. 2736702 IPC G01N 3/56 (2006.01). Installation for comparative resource tests of abrasive wear of soil tiller elements with different wear resistance. 2020 Nov 19.
