Abstract
The lubricant action of emulsion in rolling is considered. The entrainment of multiphase liquids (rolling fluids) into the deformation zone in the course of rolling is analyzed. A mathematical model is proposed for the flow of emulsion to the roller–strip contact zone and its infiltration into the deformation zone. Analysis of experimental data shows that the thickness of the lubricant layer in the deformation zone is directly proportional to the viscosity and adhesive properties of the disperse medium (the oil in the emulsion) and inversely proportional to the degree of reduction and the yield point of the metal being rolled. Recommendations are made regarding the selection of rolling conditions and regulation of the process.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Mazur, V.L. and Timoshenko, V.I., Teoriya prokatki (gidrodinamicheskie effekty smazki) (The Theory of Rolling: Hydrodynamic Effects of Lubrication), Moscow: Metallurgiya, 1989.
Grudev, A.P., Zil’berg, Yu.V., and Tilik, V.T., Trenie i smazka pri obrabotke metallov davleniem: spravochnik (Friction and Lubrication during Metal Processing by Pressure: Handbook), Moscow: Metallurgiya, 1982.
Pawelski, H., Interaction between Mechanics and Tribology for Cold Rolling of Strip with Special Emphasis on Surface Evolution, Freiberg: Tech. Univ. Bergakademie, 2004.
Azushima, A., Tribology in Sheet Rolling Technology, Bern: Springer-Verlag, 2016.
Lo, S.-W., Yang, T.-C., and Lin, H.-S., The lubricity of oil-in-water emulsion in cold strip rolling under mixed lubrication, Tribol. Int., 2013, no. 66, pp. 125–133.
Belosevich, V.K., Netesov, N.P., Meleshko, V.I., and Adamskii, S.D., Emul’sii i smazki pri kholodnoi prokatke (Emulsions and Lubricants Used in Cold Rolling), Moscow: Metallurgiya, 1976.
Grudev, A.P. and Razmakhnin, A.D., The lubricating effect of emulsions during cold rolling, Izv. Vyssh. Uchebn. Zaved., Chern. Metall., 1985, no. 5, pp. 104–107.
Sakai, T., Saito, J., and Kato, K., Estimation of lubrication state by observation of rolled strip surface in high speed cold rolling of mild steel, Proc. Int. Conf. Steel Rolling, Tokyo, 1980, vol. 2, pp. 1120–1131.
Mizuno, T., An experimental research on cold rolling. I. Report: estimating the mechanism of the lubrication, J. Jpn. Soc. Technol. Plast., 1966, no. 7, pp. 383–389.
Meleshko, V.I., Mazur, V.L., and Timoshenko, V.I., Specific temper rolling with lubrication, Izv. Vyssh. Uchebn. Zaved., Chern. Metall., 1974, no. 5, pp. 111–114.
Grudev, A.P. and Maksimenko, O.P., The conditions for the lubricant supply into the deformation center during rolling, in Obrabotka metallov davleniem (Metal Forming by Pressure), Moscow: Metallurgiya, 1971, no. 57, pp. 209–221.
Kannel, J.W. and Dow, T.A., The evolution of surface pressure and temperature measurement techniques for use in the study of lubrication in metal rolling, J. Lubric. Technol., 1974, vol. 96, no. 4, pp. 611–616.
Wallis, G.B., One Dimensional Two-Phase Flow, NewYork: McGraw Hill, 1969.
Kolmogorov, G.L., Gidrodinamicheskaya smazka pri obrabotke metallov davleniem (Use of Hydrodynamics Lubrication in Metal Forming by Pressure), Moscow: Metallurgiya, 1986.
Razmakhin, A.D., IVanov, K.A., and Sorokin, V.A., USSR Inventor’s Certificate no. 749523, Byull. Izobret., 1980, no. 27.
Nikolaev, V.A., The effect of process lubrication on the rolling parameters of strips, Metall. Gornorudn. Prom., 2013, no. 5, pp. 34–37.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.L. Mazur, V.I. Timoshenko, 2017, published in Stal’, 2017, No. 7, pp. 24–32.
About this article
Cite this article
Mazur, V.L., Timoshenko, V.I. Lubricant action of emulsions in rolling: Theory and practice. Steel Transl. 47, 483–490 (2017). https://doi.org/10.3103/S0967091217070075
Received:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S0967091217070075