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Vol 229
Pages:
77
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RUS ENG

Provision of adhesion strength of gas-thermal coatings on piston rings of quarry transport engines

Authors:
Yu. Olt1
V. V. Maksarov2
V. A. Krasnyi3
About authors
  • 1 — Estonian University of Life Sciences
  • 2 — Saint-Petersburg Mining University ▪ Orcid
  • 3 — Saint-Petersburg Mining University
Date submitted:
2017-09-11
Date accepted:
2017-10-30
Date published:
2018-02-25

Abstract

The main trend in the development of modern diesel engine manufacturign is the creation of high-powered, reliable and economical internal combustion engines (ICE), which are widely used in various industries, including mining machinery. The application of the methods of gas-thermal and gas-plasma coating for obtaining wear-resistant layers on piston rings for large internal combustion engines of quarry transport – diesel locomotives and dump trucks- is considered. It is shown that the abrasive-jet machining of base coat is widely used as a preparatory operation before coating process, and the roughness of the working surface of the rings after abrasive-jet machining has a significant impact on the adhesion strength of the coating with the base material. The selection of the surface roughness and the conditions of abrasive-jet machining for increasing the coating adhesion strength to the base coat significantly determines both the thickness of the coating and the reliability of the part itself. The aim of the paper is to investigate the dependence of the adhesion strength of a gas-thermal wear-resistant coating of piston rings of large engines of quarry transport, including dump trucks and diesel locomotives, from the roughness of the working surface after abrasive-jet machining, which in turn depends on its modes (distance to the nozzle exit section, the number of passes, the working air pressure, the shot change rate). The working surface adhesion strength of piston rings with diameter of 210 mm coated with molybdenum and steel wire composition was investigated by the twisting angle at which the coating peeled. It is shown that the roughness providing a twist angle greater than 35° should be more than 22 μm, which does not cause coating peeling off. Modes of abrasive-jet machining providing the specified values of roughness: working air pressure is 0.4 MPa, distance to the nozzle exit section is 110 mm, the number of passes is 2, and the shot changes after processing 40 mandrels.

10.25515/pmi.2018.1.77
Go to volume 229

References

  1. Гаркунов Д.Н. Триботехника / Д.Н.Гаркунов, Э.Л.Мельников, В.С.Гаврилюк. М.: КНОРУС, 2013. 408 с.
  2. Дроздов Ю.Н. Прикладная трибология (трение, износ и смазка) / Ю.Н.Дроздов, Е.Г.Юдин, А.И.Белов. М.: Эко-Пресс, 2010. 604 с.
  3. Кравченко И.Н. Обеспечение надежности адгезионной связи плазменных покрытий на поршневых кольцах ДВС с учетом их теплового и термонапряженного состояния / И.Н.Кравченко, Е.М.Бобряшов, А.Ф.Пузряков // Международный журнал экспериментального образования. 2013. № 10. C. 358-361.
  4. Красный В.А. Применение полимерных композитных материалов в узлах трения скважинных нефтяных насосов / В.А.Красный, В.В.Максаров, Ю.Ольт // Записки Горного института. 2015. Т. 211. С. 71-79.
  5. Кудинов В.А. Нанесение покрытий напылением. Теория, технология и оборудование / В.А.Кудинов, Г.В.Бобров. М.: Металлургия, 1992. 432 с.
  6. Мяконьков М.Б. Сравнительные исследования способов нанесения покрытий на поршневые кольца для уменьшения их износа // Металлообработка. 2010. № 3. C. 36-39.
  7. Основы эксплуатации горных машин и оборудования / А.В.Гилев, В.Г.Чесноков, Н.Б.Лаврова, Л.В.Хомич, Н.Н.Гилева, Л.П.Коростовенко; Сиб. федер. ун-т. Красноярск. 2011. 276 с.
  8. Суслов А.Г. Технологическое обеспечение и повышение эксплуатационных свойств деталей и их соединений / А.Г.Суслов, В.П.Федоров, О.А.Горленко. М.: Машиностроение, 2006. 448 с.
  9. Цыбин А.С. Физические основы плазменной и лазерной технологий / МИФИ. М., 2002. 184 с.
  10. Agarwala R.C. Electroless alloy/composite coatings: A review / R.C.Agarwala, V.Agarwala // Sadhana. 2003. Vol. 28. Parts 3 & 4. P. 475-493.
  11. Diesel Engine Cylinder Bore Coating for Extreme Operating Conditions / Kamo Lloyd, Dorsaf Saad, Philipe Saad, Milad H.Mekari // SAE Technical Paper 2007-01-1439, 2007. DOI: 10.4271/2007-01-1439
  12. Holmberg K. Coatings Tribology – Properties, Mechanisms, Techniques and Applications in Surface Engineering / K.Holmberg, A.Matthews // Tribology and Interface Engineering Series 56. Amsterdam: Elsevier, 2009. 560 p.
  13. Krasnyy V. Improving fretting resistance of heavily loaded friction machine parts using a modified polymer composition / V.Krasnyy, V.Maksarov, J.Olt // Agronomy Research. 2016. Vol. 14(S1). P. 1023-1033.
  14. Krasnyy V. Increase of wear and fretting resistance of mining machinery parts with regular roughness patterns / V.Krasnyy, V.Maksarov, J.Olt // Annals of DAAAM and Proceedings of the International DAAAM Symposium. 2016. P. 151-156.
  15. Maksarov V. The Formation of Surface Roughness of Piston Rings for the Purpose of Improving the Adhesion of Wear-Resistant Coatings / V.Maksarov, V.Krasnyy // Key Engineering Materials. 2017. Vol. 736. P. 73-78.
  16. Musil J. Hard and super hard nanocomposite coatings // Surface and coatings technology. 2000. Vol. 125. Iss. 1-3. P. 322-330.
  17. Shaffer S.J. Tribological performance of various coatings in unlubricated sliding for use in small arms action components / S.J.Shaffer, M.J.Rogers // Wear. 2007. Vol. 263. P. 1281-1290.
  18. Sigmund P. Nucl. Mechanisms and theory of physical sputtering by particle impact // Nuclear Instruments and Methods in Physics Research Section B. 1987. Vol. 27. Iss. 1. P. 1-20. DOI: 10.1016/0168-583X(87)90004-8

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