Russian Federation
UDK 62 Инженерное дело. Техника в целом. Транспорт
The effect of the sandblasting pressure and the volume of alumina on the roughness of the substrate made of the AK12MMgN alloy, on the roughness of the deposited galvanic-plasma modification (GPM) coatings after blast cleaning, and on the adhesion strength of these coatings is investigate. It has been established that the proposed technology of surface treatment of cylinder-piston group (CPG) parts made of AK12MMgN alloy both before the application of GMG coatings and after their application to the above alloy makes it possible to obtain a heat-shielding layer, leading to significant fuel savings in diesel internal combustion engines. This method of treating the surfaces of the parts of a diesel engine CPG before and after applying heat-protective and wear-resistant coatings, confirmed by full-scale and bench tests, seems to be effective.
CYLINDER-PISTON GROUP, GALVANIC-PLASMA MODIFICATION, HEAT-PROTECTIVE COATING, JET-ABRASIVE TREATMENT, AVERAGE ROUGHNESS, COEFFICIENT OF FRICTION.
DOI:
|
|
УДК 62.843.6
|
|
05.02.07 – Технология и оборудования механической и физико-технической обработки
|
|
ПОВЕРХНОСТЕЙ ДЕТАЛЕЙ ЦПГ
|
TO THE QUESTION OF SURFACE TREATMENT OF CPG PARTS IN THE PROCESS OF APPLYING COATINGS ON THEM
|
Аль-Бдейри Махмуд Шакир Хассан аспирант кафедры материаловедения и нанотехнологий НИУ «БелГУ», г. Белгород, РФ
|
Al'-Bdeyri Makhmud Shakir Khassan graduate student of the department of materials science and nanotechnology of University of Scientific Research "Belgorod State University", Belgorod, RF
|
Красильников Владимир Владимирович доктор технических наук, профессор кафедры материаловедения и нанотехнологий НИУ «БелГУ», г. Белгород, РФ
|
Krasilnikov Vladimir Vladimirovich doctor of technical sciences, professor of the department of materials science and nanotechnology of University of Scientific Research "Belgorod State University", Belgorod, RF
|
1Кадырметов Анвар Минирович доктор технических наук, доцент, заведующий кафедрой машиностроительных технологий ФГБОУ ВО «Воронежский государственный лесотехнический университет имени Г.Ф. Морозова», г. Воронеж, РФ e-mail: kadyrmetov.a@mail.ru
|
1 Kadyrmetov Anvar Minirovich doctor of technical sciences, associate professor, head of machine-building technology department of Federal State Budget Educational Institution of Higher Education “Voronezh State University of Forestry and Technologies named after G.F. Morozov”, Voronezh, RF e-mail: kadyrmetov.a@mail.ru
|
Сергеев Сергей Валерьевич кандидат технических наук, доцент, начальник НИЛ технологических систем НИУ «БелГУ», г. Белгород, РФ
|
Sergeyev Sergey Valerevich candidate of technical sciences, associate professor, head of the scientific research laboratory of technological systems of Research University "Belgorod State University", Belgorod, RF
|
Аннотация.
|
Annotation. The effect of the sandblasting pressure and the volume of alumina on the roughness of the substrate made of the AK12MMgN alloy, on the roughness of the deposited galvanic-plasma modification (GPM) coatings after blast cleaning, and on the adhesion strength of these coatings is investigate. It has been established that the proposed technology of surface treatment of cylinder-piston group (CPG) parts made of AK12MMgN alloy both before the application of GMG coatings and after their application to the above alloy makes it possible to obtain a heat-shielding layer, leading to significant fuel savings in diesel internal combustion engines. This method of treating the surfaces of the parts of a diesel engine CPG before and after applying heat-protective and wear-resistant coatings, confirmed by full-scale and bench tests, seems to be effective.
|
Ключевые слова: ЦИЛИНДРОПОРШНЕВАЯ ГРУППА, ГАЛЬВАНО-ПЛАЗМЕННАЯ МОДИФИКАЦИЯ, ТЕПЛОЗАЩИТНОЕ ПОКРЫТИЕ, СТРУЙНО-АБРАЗИВНАЯ ОБРАБОТКА, СРЕДНЯЯ ШЕРОХОВАТОСТЬ, КОЭФФИЦИЕНТ ТРЕНИЯ.
|
Keywords: CYLINDER-PISTON GROUP, GALVANIC-PLASMA MODIFICATION, HEAT-PROTECTIVE COATING, JET-ABRASIVE TREATMENT, AVERAGE ROUGHNESS, COEFFICIENT OF FRICTION. |
1Автор для ведения переписки |
|
- Состояние вопроса исследования и актуальность работы
Развитие современного машиностроения во многом обусловлено проблемой экономии топлива в двигателях внутреннего сгорания (ДВС). Поскольку на расход топлива влияют такие основные факторы, как температура в камере сгорания и тепловые напряжения на деталях цилиндропоршневой группы (ЦПГ), то существуют различные методы уменьшения влияния указанных факторов путем нанесения теплозащитных покрытий на поверхности элементов ЦПГ [1]. В этой связи одним из перспективных методов нанесения покрытий является метод гальвано-плазменной модификации (ГПМ) микродугового оксидирования (МДО) [2-4].
Технология формирования теплозащитных покрытий методом ГПМ, включает в себя технологию предварительной очистки поверхности сплава АК12ММгН, служащего подложкой, само формирование покрытия методом ГПМ и технологию финишной обработки детали с покрытием путем достижения необходимых характеристик точности и качества поверхности.
Кроме того, в случае ремонта изношенных деталей ЦПГ (рис. 1) до нанесения восстановительных покрытий требуется проводить обдув поверхности абразивным материалом, чтобы удалить нагары и мелкие дефекты поверхности, так как возникающая при этом шероховатость в
1. Dorokhov, A. F. Modeling of heat transfer through the wall of the working cylinder of a piston internal combustion engine and control of its stress-strain state. / A. F. Dorokhov, N. V. Pakhomov // Modern technologies. System analysis. Modeling. - 2015. - №. 1 (45). - pp. 68-74.
2. Tikhonenko, V. V. Microarc oxidation method. / V. V. Tikhonenko, A. M. Shkilko // Eastern European Journal of Advanced Technologies. Materials Science. - 2012. - 2/13 (56). - pp. 13-18.
3. Timoshenko, A. V. Influence of the superimposed alternating current on the composition and properties of oxide coatings formed in the microplasma mode on the D16 alloy / A. V. Timoshenko, B. K. Opara, Yu. V. Magurova // Protection of metals. - 1994. - Vol. 30, №. 1. - pp. 32-38.
4. Al-Bdeiri M. Sh. Kh. Review of methods of galvanic-plasma modification for the production of anodized coatings on aluminum alloys : microstructure, properties and application / Al-Bdeiri M. Sh. Kh. // Bulletin of the Perm National Research Polytechnic University. Mechanical engineering, materials science. - 2020. - Vol. 22. - №. 3. - pp. 51-59.
5. Chen L Effects of Surface Roughness Parameters on Tribological Performance for Micro-textured Eutectic Aluminum-Silicon Alloy / Chen L., Liu Z., Wang X., Wang Q., Liang X. // Journal of Tribology. - 2020. - Vol. 142. - № 2. - pp. 43-48.
6. Iordan V. I., Simulation modeling of the formation of a rough surface of a substrate during its sandblasting / Iordan V. I., Blednov V. A., Smirnov A. V., Chesnokov A. E. // Polzunov Almanac. - 2018. - №. 4. - pp. 23-27.
7. Ghara T. Effect of grit blasting parameters on surface and near-surface properties of different metal alloys / Ghara T., Paul S., Bandyopadhyay P. P. // Journal of Thermal Spray Technology. - 2021. - Vol. 30. - №. 1. - pp. 251-269.
8. Xie T. Simulation of effect of counterface roughness on the friction transfer and wear of PTFE sliding against steel / Xie T., Lai J., Yang H. // Industrial Lubrication Tribology. - 2019. - Vol. 71, № 9. - pp. 1086-1092.
9. Pat. 2 741 039 Rus. Federation. Method of forming a wear-resistant self-wearing coating on working elements of a spiral expander made of aluminum alloy : C1 / S. V. Sergeev, M. Sh. Al-Bdeiri ; applicant and patentee FGAOU VO NRU "BelGU". - declared. 09.18.2020 ; publ. 01.22.2021.
10. Yasmin T. Tribological (wear) properties of aluminum-silicon eutectic base alloy under dry sliding condition / Yasmin T., Khalid A. A., Haque M. M. // Journal of Materials Processing Technology. - 2004. - Vol. 153. - pp. 833-838.
11. Dudareva N. Yu. Study of the effect of micro-arc oxidation on the wear resistance of the cylinder liner of an internal combustion engine made of aluminum alloy / Dudareva N. Yu., Kalshchikov R. V., Musin N. Kh., Ryabova D. A. // Bulletin of the Irkutsk State Technical University. - 2013. - Vol. 80, №. 9 - pp. 127-144.
12. Santos D. M. F. Hydrogen production by alkaline water electrolysis / Santos D. M. F., Sequeira C. A. C., Figueiredo J. L. //Química Nova. - 2013. - Vol. 36. - №. 8. - pp. 1176-1193.
13. Lu X. Effects of phase transformation on properties of alumina ceramic membrane : A new assessment based on quantitative X-ray diffraction (QXRD) / Yang J., Li X., Sun F., Wang F., Chao Y. // Chemical Engineering Science. - 2019. - Vol. 199. - pp. 349-358.
14. Xue W. Analysis of phase distribution for ceramic coatings formed by microarc oxidation on aluminum alloy / Xue W., Deng Z., Lai Y., Chen R. // Journal of the American Ceramic Society. - 1998. - Vol. 81. - pp. 1365-1368. DOI :https://doi.org/10.1111/j.1151-2916.1998.tb02493.
15. Al-Bdeiri M. S. Analysis of Physical and Mechanical Properties of Galvanic-Plasma Wear-Resistant Coatings / Al-Bdeiri M. S., Sergeev S., Krasilnikov V. V. // Advances in Science, Technology and Engineering Systems Journal. - 2020. - Vol. 5, pp. 1387-1393.