Estudio de llamas oxiacetilénicas usadas en la proyección térmica

Edwin Humberto Cadavid Iglesias; Carolina Parra Velásquez; Fabio Vargas Galvis

doi:10.17533/udea.rcm.326490

Authors

Edwin Humberto Cadavid Iglesias University of Antioquia
Carolina Parra Velásquez University of Antioquia
Fabio Vargas Galvis University of Antioquia

DOI:

https://doi.org/10.17533/udea.rcm.326490

Keywords:

flames, thermal spray, temperature, enthalpy

Abstract

The knowledge and control of parameters that modifies the flame used to manufacture coatings by oxy-fuel thermal spraying process are of great importance; to provide the particles an appropriate thermo-kinetic state achieving a correct deposition on the substrate. With the purpose of understanding the influence of the different gas ratios in the flame’s temperature, frequency and length, the physical and thermal behavior of the oxyacetylene flame produced with different acetylene and oxygen ratios were studied. The acetylene-oxygen volume ratios used were (1:1.4) (1:1.7) (1:2.5) (1:3.2) and (1:4.0), which were studied by numerical simulations using the Jets&Poudres software and high-speed image analysis. It was observed that the highest temperature was reached for the flame whose volumetric acetylene:oxygen ratio is approximately (1:1.7); however, the oxidizing flames corresponding to (1:2.5), (1:3.2) and (1:4.0) ratios are those with the greatest hotter zone length. Meanwhile, the flame blow’s frequency increases with the oxygen flow and it stabilizes from the neutral flame.

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Author Biographies

Edwin Humberto Cadavid Iglesias, University of Antioquia

Materials Engineer, Ceramic Materials and Coatings Research Group (GIMACYR), University of Antioquia, Medellín, Colombia.

Carolina Parra Velásquez, University of Antioquia

Materials Engineer, Ceramic Materials and Coatings Research Group (GIMACYR), University of Antioquia, Medellín, Colombia.

Fabio Vargas Galvis, University of Antioquia

PhD in Science and Engineering, Pyrometalurgical and Materials Research Group (GIPIMME), University of Antioquia, Medellín, Colombia.

References

Fauchais, P. L., Heberlein, J. V. R., Boulos, M. I., Thermal Spray Fundamentals, Springer US, Boston, MA, 2014.

Vargas, F., Élaboration De Couches Céramiques Épaisses A Structures Micrométriques Et Nanométriques Par Projections Thermiques Pour Des Applications Tribologiques, Université de Limoges, Universidad de Antioquia, 2010.

Linde catalogue, “Acetylene ... there is no better fuel gas for oxy-fuel gas processes”, Linde AG.

Soto, D., Parra, C., López, M. E., et al., “Elaboración de recubrimientos base cobre sobre un sustrato de porcelana mediante proyección térmica con llama oxiacetilénica” Tecno Lógicas, vol. 18, no. 35, pp. 83–91, 2015.

Davis, J. R., Handbook of Thermal Spray Technology, USA, 2004.

Redjdal, O., Zaid, B., Tabti, M. S., et al., “Characterization of thermal flame sprayed coatings prepared from fecr mechanically milled powder”, Journal of Materials Processing Technology, vol. 213, no. 5, pp. 779–790, 2013.

Correa, R., Monsalve, M., López, E., et al., “Influencia de los parámetros de deposición en la porosidad y adherencia de recubrimientos de biovidrios del sistema 31SiO2-11P2O5- 51CaO –7MgO elaborados mediante proyección térmica por combustión oxiacetilénica,” Revista Lationoamericana de Materiales y Metalurgia, vol. 33, no. 1, pp. 92–99, 2013.

Djebali, R., Pateyron, B., ElGanaoui, M., “Scrutiny of plasma spraying complexities with case study on the optimized conditions toward coating process control”, Case Studies in Thermal Engineering, vol. 6, pp. 171–181, 2015.

Pateyron, B., "JETS&POUDRES” AND “T&TWINNER” [Online], Available: http://www.unilim.fr/spcts, [Accessed: 06-Jul-2016].

Delluc, G., Mariaux, G., Vardelle, “A numerical tool for plasma spraying. part i: modelling of plasma jet and particle behaviour”, Sciences des Procédés Céramiques et Traitements de Surface, pp. 1–6, 2003.

Wan, Y. P., Gupta, V., Deng, Q., et al., “Modeling and visualization of plasma spraying of functionally graded materials and its application to the optimization of spray conditions”, Journal of Thermal Spray Technology., vol. 10, no. 2, pp. 382–389, 2001.

Dussoubs, B., Fauchais, P., Vardelle, A., Vardelle, M., Themelis, N. J., & Berndt, C. C., “Thermal spray: Aunited forum for scientific and technological advances”, ASM Int. Mater. Park. Ohio, USA, 1997.

Djebali, R., Pateyron, B., El Ganaoui, M., “A lattice boltzmann based investigation of powder in-flight characteristics during aps process, part ii: effects of parameter dispersions at powder injection”, Surface and Coatings Technology, vol. 220, pp. 157–163, 2013.

Pateyron, B., Calve, N., Pawłowski, L., “Influence of water and ethanol on transport properties of the jets used in suspension plasma spraying”, Surface and Coatings Technology, vol. 220, pp. 257–260, 2013.Powered by TCPDF (www.tcpdf.org).