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ISSN 0536-1028 (Print)              ISSN 2686-9853 (Online)  

Blinkov O. G. – Ural Federal University, Ekaterinburg, the Russian Federation. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Dmitriev V. T., Boiarskikh G. A. – The Ural State Mining University, Ekaterinburg, the Russian Federation.
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The article introduces the results of the use of plasma technology to reinforce the elements of cutter rock drilling bits.
The method of hard facing is currently being widely used; the method is based on getting ionic component of metal in the
plasma of arc discharge. The main advantage, which has predetermined the wide spread occurrence of vacuum ionicplasma method is the fact that in within a compact and simple device it is possible to obtain plasma jet of metal with high
level of ionization and high average ion kinetic energy. It makes it possible to transfer thermodynamically-equilibrium
covering generation process into essentially non-equilibrium – straight plasma chemical synthesis. At that the values of
critical temperatures at which the required level of adhesion is obtained, high rate of connection formation reaction, and
the required level of cohesive interaction, can be reduced from 1000°С to near normal values. Furthermore, possibility
emerges to obtain coverings unique in composition with various content of components. As the result of investigations
fulfilled, optimal materials are determined, as well as parameters and regimes of plasma coating of abrasion-resistant
covering on link rails of bearing units of cutter rock drilling bits. Practical use of the investigation results will allow
significantly increase operational life and reliability of bearing units of a cutter rock drilling bit and, consequently, increase
efficiency and reduce the cost of drilling operations.

Key words: rock drilling bit; link rails; arc discharge; vacuum ionic-plasma method.

REFERENCES
1. Boiarskikh G. A., Simisinov D. I. [Comparative efficiency evaluation of rock drilling bits support elements
reinforcement]. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal – News of the Higher Institutions. Mining
Journal, 2002, no. 5, pp. 65–72. (In Russ.)
2. Simisinov D. I., Kurbanov Ia. M., Simisinov I. L., Gorbunov V. A. [The increase of technological indices roller bit
drilling heads to drill the Uralskaia ultradeep well SG-4]. Razvedka i okhrana nedr – Prospect and Protection of Mineral
Resources, 2003, no. 6, pp. 8–10. (In Russ.)
3. Simisinov D. I., Boiarskikh G. A., Dmitriev V. T. [Self-organizing tribosystem as a means of increasing operational
efficiency of rock drilling bit supports]. Gornoe oborudovanie i elektromekhanika – Mining Equipment and
Electromechanics, 2006, no. 8, pp. 25–28. (In Russ.)
4. Serikov D. Iu., Panin N. M., Ageeva V. N. [Rock drilling bit bearing units hermetization system development].
Stroitel'stvo neftianykh i gazovykh skvazhin na sushe i na more – Oil and Gas Wells Construction on Land and Sea,
2016, no. 4, pp. 16–19. (In Russ.)
5. Popov A. N., Batalov S. P., Torgashov A. V. and others. [Peculiarities of wastage and ways of improving bits plain
bearings rigidity]. Problemy neftegazovogo kompleksa Rossii; tezisy dokl. Vseros. nauch.-tekhn. konf. [Proc. All-Russ.
Sci. and Tech. Conf. “The problems of oil and gas complex in Russia”]. Ufa, USPTU Publ., 1995, pp. 105–109.

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