Email this article Economic feasibility of using the technology of carbon-vibro-arc hardening for hardening the pointed paws of tillage machinery
- Authors: Titov N.V.1, Kolomeychenko A.V.2, Vinogradov V.V.1, Kolomeychenko A.S.3
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Affiliations:
- Orel State Agrarian University
- Central research and development automobile and engine institute NAMI
- College of Railroad and Urban Transportation
- Issue: Vol 88, No 6 (2021)
- Pages: 99-104
- Section: Economics, organization and technology of production
- URL: https://bakhtiniada.ru/0321-4443/article/view/95641
- DOI: https://doi.org/10.17816/0321-4443-2021-6-99-104
- ID: 95641
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Abstract
The article describes the rational technology of carbo-vibro-arc hardening (CVAH) developed by the authors using a multicomponent paste of the working surfaces of the pointed paw of tillage machinery. An economic assessment of the feasibility of using CVAH for strengthening pointed paws was carried out. PG-FBKh6-2 powder was used for research as the basis of a multicomponent paste for CVAH. The boron carbide B4C served as a ceramic component of the paste, the mass content of cryolite was 10 %. CVAH was carried out on a VDGU-2 installation. A carbon electrode of 8 mm in diameter was used to form reinforcing composite coatings.
The implementation of developed technology involves firstly the cleaning of working part of the paw. Then a multicomponent paste is prepared, it is applied to the surfaces, hardened and dried until cured. After it the CVAH is done with the formation of a composite coating and the resulting coating is monitored. The rational composition of the multicomponent paste according to the results of a set of studies should be as follows: PG-FBH6-2 powder – 60 % by weight, B4C – 30 % by weight, cryolite – the rest. Rational CVAH modes: current strength – 70 ... 80 A, carbon electrode vibration frequency – 25 Hz, electrode vibration amplitude – 1,1 mm. The thickness of the formed reinforcing composite coating is 0,9…1,0 mm, and its hardness is 70…72 HRC. The developed technology, due to low additional capital investments, can be used both in small workshops of farms and in the conditions of specialized repair and restoration enterprises. The calculation of the economic efficiency of the developed technology for strengthening pointed paws showed that the expected annual economic effect from the introduction of the technology will be 120, 191 rubles with the hardening of 430 blades of KShU-12N cultivators. Thus, the developed technology is economically feasible and can be recommended for implementation in production.
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##article.viewOnOriginalSite##About the authors
Nikolay V. Titov
Orel State Agrarian University
Email: ogau@mail.ru
PhD in Engineering
Russian Federation, OrelAlexander V. Kolomeychenko
Central research and development automobile and engine institute NAMI
Email: kolom_sasha@inbox.ru
DSc in Engineering
Russian Federation, MoscowVictor V. Vinogradov
Orel State Agrarian University
Email: ogau@mail.ru
PhD in Engineering
Russian Federation, OrelAlla S. Kolomeychenko
College of Railroad and Urban Transportation
Author for correspondence.
Email: alla.kolomeychenko@mail.ru
PhD in Economics
Russian Federation, MoscowReferences
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