2017 №07 (05) DOI of Article
2017 №07 (07)

The Paton Welding Journal 2017 #07
The Paton Welding Journal, 2017, #7, 28-32 pages

Development of technology of microplasma spraying for restoration of local damages of enamel coating

Yu.S. Borisov, S.G. Vojnarovich, A.N. Kislitsa, Ie.K. Kuzmych-Ianchuk, O.P. Masyuchok and S.N. Kalyuzhny

E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
Fundamentals of microplasma spraying technology for restoration of local damages in enamel coatings of tank equipment were developed. A double-layer repair coating consisting of a layer of zirconium oxide and tantalum sublayer was proposed. The optimum parameters of microplasma spaying mode were determined in order to obtain a layer of zirconium oxide with dense microstructure (porosity 1.2–1.9 %). It is shown that application of tantalum-based sublayer increases adhesion strength of zirconium oxide coating by 25 % (up to 8.14±2.16 MPa). Evaluation of coating through porosity was carried out. A method was proposed for increase of coating uniformity using epoxy-resin treatment. The technology was approved under real production conditions at CJSC «Kharkovreakhim». 15 Ref., 1 Table, 6 Figures.
Keywords: microplasma spraying, enamel coatings, restoration, adhesion strength, zirconium oxide, tantalum, coating permeability
Received:                23.03.17
Published:               01.09.17
  1. (1972) Enameling of metallic products. Ed. by V.V. Vargina. Leningrad: Mashinostroenie.
  2. Petzold, A. (1990) Enamel and enameling: Refer. Book. Moscow: Metallurgiya.
  3. Lobanov, L.M., Maksimovich, B.I., Neiesa, I.V. (1991) Materials, equipment and technology of deposition of corrosion-resistant coatings on steel metallic structures. In: Strengthening and protection of surfaces by thermal and vacuum deposition: Transact. Kiev, 104–107.
  4. Lyublinsky, E.Ya. (1991) Thermal coatings in shipbuilding. Strengthening and protection of surfaces by thermal and vacuum spraying. In: of 3rd Int. Sci.-Techn. Conf. Kiev, 154–159.
  5. Morozov, V.N., Narkevich, N.K., Tretyakova, I.A. et al. (1993) Method of repair of damaged glass-enamel coatings. USSR author’s cert. 1813796. Int. Cl. C 23 D 13/02.
  6. Kudinov, V.V., Ivanov, V.M. (1981) Plasma deposition of refractory coatings. Moscow: Mashinostroenie.
  7. Berzynsh, I.A., Zelenkevich, O.A., Zozulya, A.I. et al. (1980) Application of plasma spraying in repair of enameled equipment at SPA Biokhimreaktiv. Teoriya i Praktika Gazotermicheskogo Naneseniya Pokrytij, 2, 118–120.
  8. Kupriyanov, I.L., Korotkina, M.G., Verstak, A.A. (1983) Study of protective properties of composite coatings for agricultural machine parts. In: of Pap. of Sci.-Techn. Conf. on New Corrosion-Resistant Metallic Alloys, Nonmetallic and Composite Materials and Coatings. Kiev, 45–46.
  9. Byoungchul Hwang, Ahn Jeehoon, Lee Sunghak (2002) Correlation of microstructure and wear resistance of ferrous coatings fabricated by atmospheric plasma spraying. and Mater. Transact. A, 33(9), 2933–2945. https://doi.org/10.1007/s11661-002-0278-z
  10. Kolotyrkin, V.I., Knyazheva, V.M. (1991) Possibilities of high-energy treatment methods of metals surface for corrosion protection. Zashchita Metallov, 27(2), 179–196.
  11. Safonova, A.A., Kramarenko, D.M., Eseleva, L.I. (1985) Application of metallized-polymer coatings for corrosion protection of metallic structures of equipment in domestic and foreign practice. Moscow: Mintsvetmet SSSR.
  12. Verenkova, E.M., Trofimov, M.G., Frolov, A.S. et al. (1966) Heat-resistant electrically insulating ceramic materials and coatings. In: of 3rd Sem. on Temperature-Resistant Protective Coatings, Leningrad, 215–222.
  13. Reutovich, S.S., Shilova, O.A., Khamova, T.V. et al. (2001) Producing of protective heat-resistant material by method of electric arc plasma spraying using glass-ceramic powder materials. In: Temperature-resistant functional coatings: Book, 219–222.
  14. Borisov, Yu., Borisova, A., Pereverzev, Yu. et al. (1997) Microplasma spraying. In: of the 5th Europ. Conf. on Advanced Materials and Processes, Netherlands.
  15. Borisov, Yu.S., Borisova, A.L. (1986) Plasma powder coatings. Kiev: Tekhnika.