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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2015, 15 (2), 78—85.

About Optimal Concentration of Mesogenic Additives in Metalworking Fluids

V. V. Novikov1, S. A. Syrbu1, Е. Е. Nuzhdina1, M. S. Marshalov2, R. Yu. Lisitsуn2

Author affiliations
1Ivanovo State University,
39 Ermak St., Ivanovo, 153025, Russia
2Ivanovo Institute of the State Firefighting Service,
33 Stroiteley Ave., Ivanovo, 153040, Russia

The purpose of the research is the optimization of the metalworking fluids (MWF) composition for drilling and threading of structural steels by the inclusion of cholesterol mesogenic compounds into the composition. Principles of the optimization for lubricant-coolant liquids with mesogenic additives for metalworking are described. The positive action into the technological characteristics of the drilling and reamer process was observed. The results of the experiments indicate that the best working properties for MWF are achieved at the optimal concentration of additives near 3...4 mas. %. For materials with higher hardness the compositions with high concentration of additives having a temperature of the mesomorphic phase existence over 100°C can be recommended.

Keywords: additives, liquid crystals, cholesterol, metalworking, metalworking fluids

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