Using Atomic Spectrometry and Volumetry Method for Determination of Bearing Corrosion in Tribotechnical Diagnostics of Engines

Abstract:

The presence of water in the engine lubrication system is supposed to be a significant factor, which causes engine corrosion. Atomic spectrometry method and method for water content determination were applied for the detection of corrosion. Rotating disc electrode optical emission spectrometry (RD OES) is a method used to determine the concentration of 21 chemical elements in used lubricating oil in 30 seconds. In the used oil the concentration of Fe, Cu and Sn was monitored because these elements are indicators of bearing wear. The elements were analyzed using Conostan S-21 organo metallic calibration standards. The precision of the method was verified by calculating RSD for n = 3, the values of which are for Fe, Cu and Sn less than 7 %. Accuracy of measurement was verified by measuring standard reference material NIST 1084a. Karl Fischer volumetric method was used for the determination of water content in used lubricating oils with precision less than 1 %. The obtained reference material 34849 HYDRANAL-Water Standard 10.0, which is traceable to NIST SRM 2890 for determination of water content by Karl Fischer method, was analyzed for accuracy purposes.

• Periodical: Applied Mechanics and Materials (Volume 616)
• Pages: 110-117
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.616.110
• Online since: August 2014
• Authors: Janka Mihalčová*
• Keywords: Corrosion, Karl Fischer Volumetric Method, RD OES, Uncertainty, Used Lubricating Oil

References

[1] Ľ. Straka, I. Čorný, R. Kreheľ, Evaluation of capability of measuring device on the basis of diagnostics, Applied Mechanics and Materials 308 (2013) 69-74.

DOI: 10.4028/www.scientific.net/amm.308.69

[2] M. Rimár, M. Fedák, Š. Kuna, Equation Model of Stabilization of Low Damped Astatic Systems, Applied Mechanics and Materials 415 (2013) 427-430.

DOI: 10.4028/www.scientific.net/amm.415.427

[3] J. Mihalčová, H. Al Hakim, Tribotechnical diagnostics in service of used oils 1: Methods of evaluating the wear particles in oil (Tribotechnická diagnostika v prevádzke použitých olejov 1: Metódy hodnotenia častíc opotrebovania v olejoch), Chemické listy 102/5 (2008).

[4] J. Mihalčová, Global evaluation of quality oils by selected analytical methods, Transactions of the Universities of Košice 2 (2004) 72-75.

[5] S. Fabian, P. Čačko, Objective determination the time of run in process of gearbox after the exchange of bearings by applying selected methods of tribology, in: Scientific Papers: Operation and Diagnostics of Machines and Production Systems Operational States 4, Lüdenscheid, RAM-Verlag (2011).

[6] M. Rimár, M. Vaľko, Multiparametric monitoring of rotating parts of mechanical devices, Advanced Materials Research 734-737 (2013) 2646-2649.

DOI: 10.4028/www.scientific.net/amr.734-737.2646

[7] A. Panda, M. Jančík, J. Jurko, I. Pandová, World trends in the development of composite materials, which is usable for bearings parts too, Pogranicza Technik (2013) 114-136.

[8] Ľ. Bičejová, M. Nováková, P. Michalik, Experimental determination of deformation of the elastic environment, in: Scientific Papers: Operation and Diagnostics of Machines and Production Systems Operational States 3, Lüdenscheid, RAM-Verlag (2010).

[9] J. Černecký, J. Koniar, Z. Brodnianská, Impact of lower heat exchange plate's geometry on heat transfer in horizontal chanel, in: Proc. of 22nd Int. DAAAM Symposium Intelligent manufacturing & automation: Power of knowledge and creativity, Vienna, Austria, 2011, pp.245-246.

DOI: 10.2507/22nd.daaam.proceedings.122

[10] A. Panda, J. Duplák, J. Jurko, M. Behúň, Comprehensive Identification of Sintered Carbide Durability in Machining Process of Bearings Steel 100CrMn6, Advanced Materials Research 340 (2011) 30-33.

DOI: 10.4028/www.scientific.net/amr.340.30

[11] J. Machalíková, J. Chýlková, R. Šelešovská, E. Schmidová, Advanced instrumental methods in tribotechnical diagnostics (Pokročilé instrumentální metody v tribotechnické diagnostic), Proc. of 4th Int. Sci. Conf. Challenges in Transport and Communication, Pardubice, 2006, pp.1087-1092.