Features of extending the service life of transport and technological machines in mountain and foothill conditions
DOI:
https://doi.org/10.56143/3030-3893-2026-1-139-143Ключевые слова:
corrosion, anti-corrosion coating, ED-16 epoxy resin, epoxyurethane, cyclocarbonate, service life, mountain conditionsАннотация
When transport and technological machines are operated in mountain and foothill conditions, their bodies and parts are more susceptible to corrosion, which leads to premature failure and a sharp decrease in the reliability of joints and main load-bearing parts. Multifunctional anti-corrosion coatings with high physicochemical properties are therefore needed to extend the service life of bodies and units of such machines. The aim of the study is to propose an epoxyurethane anti-corrosion coating based on ED-16 epoxy resin modified with cyclocarbonate and a method for estimating the effect of the coating reapplication interval on the corrosion-limited service life of vehicle units operated in mountain conditions. In a preliminary screening test in 10% HCl, the mass changes of coated copper, steel and aluminum alloy specimens did not exceed 0.0003 g. Coating deterioration observed in operation is approximated by a power law of mileage, and the predicted service life of the unit is reported with 95% confidence intervals, the assumptions of the model and the limitations of the available data.
Библиографические ссылки
[1]
“Why car bodies rust: a little theory and a scary bedtime story,” ABS Auto, 12–27 (December 2015) (in Russian), available at https://abs-magazine.ru/article/pochemu-rzhavejut-avtomobilnye-kuzova-nemnogo-teorii-i-strashnaja-skazka-na-noch
[2]
A. A. Gerasimenko, Protection of Machines, Equipment and Structures against Corrosion, Ageing and Biodeterioration, Vol. 1 (Mashinostroenie, Moscow, 1987) (in Russian).
[3]
M. I. Karyakina, Testing of Paint and Varnish Materials and Coatings (Khimiya, Moscow, 1988) (in Russian).
[4]
GOST 9.908-85, Unified System of Corrosion and Ageing Protection. Metals and Alloys. Methods for Determination of Corrosion and Corrosion Resistance Indices (1985).
[5]
A. D. Yakovlev, Chemistry and Technology of Paint and Varnish Coatings (Khimiya, Leningrad, 1981) (in Russian).
[6]
P. A. Sørensen, S. Kiil, K. Dam-Johansen, and C. E. Weinell, “Anticorrosive coatings: a review,” J. Coat. Technol. Res. 6, 135–176 (2009), https://doi.org/10.1007/s11998-008-9144-2.
[7]
G. Rokicki, P. G. Parzuchowski, and M. Mazurek, “Non-isocyanate polyurethanes: synthesis, properties, and applications,” Polym. Adv. Technol. 26, 707–761 (2015), https://doi.org/10.1002/pat.3522.
[8]
H. Blattmann, M. Fleischer, M. Bähr, and R. Mülhaupt, “Isocyanate- and phosgene-free routes to polyfunctional cyclic carbonates and green polyurethanes by fixation of carbon dioxide,” Macromol. Rapid Commun. 35, 1238–1254 (2014), https://doi.org/10.1002/marc.201400209.
[9]
ISO 9227:2022, Corrosion Tests in Artificial Atmospheres — Salt Spray Tests (ISO, Geneva, 2022).
[10]
O‘z DSt 9.101-98, Unified System of Protection against Corrosion and Ageing. Basic Provisions (Tashkent, 1998).
[11]
Polyethylene and Other Polyolefins, translated from English, edited by P. V. Kozlov and N. A. Plate (Mir, Moscow, 1989) (in Russian).
[12]
Yu. A. Marchuk and I. K. Yartsev, Pentaplast (Khimiya, Leningrad, 1975) (in Russian).
[13]
Properties, Processing and Application of Pentaplast, Collection of Scientific Papers of ONPO “Plastpolimer” (Leningrad, 1975) (in Russian).
[14]
V. N. Kestelman, Physical Methods of Modification of Polymer Materials (Khimiya, Moscow, 1975) (in Russian).
[15]
A. A. Tadjibayev, Study of Vehicle Reliability in Operation, Monograph (Tashkent, 2024).
[16]
S. Absattarov, S. Yunusov, and N. Tursunov, “Research of the stress-strain state and durability of freight wagon trolley springs by the method of finite element modeling in ANSYS,” Vibroengineering Procedia, Vol. 60, pp. 664–669, Dec. 2025, https://doi.org/10.21595/vp.2025.25532.
[17]
S. Absattarov, N. Tursunov, B. Erkin, and K. Khojakhmedova, “Numerical simulation of the spatial distribution of temperature fields in spring elements of freight wagons of railway transport,” Vibroengineering Procedia, Vol. 60, pp. 670–675, Dec. 2025, https://doi.org/10.21595/vp.2025.25533.
[18]
ISO 4628-1:2016, Paints and Varnishes — Evaluation of Degradation of Coatings — Designation of Quantity and Size of Defects, and of Intensity of Uniform Changes in Appearance — Part 1: General Int
