Analysis of TiO2 nano-additive water-based lubricants in hot rolling of microalloyed steel. (June 2017)

• Record Type: Journal Article
• Authors: Wu, Hui; Zhao, Jingwei; Xia, Wenzhen; Cheng, Xiawei; He, Anshun; Yun, Jung Ho; Wang, Lianzhou; Huang, Han; Jiao, Sihai; Huang, Li; Zhang, Suoquan; Jiang, Zhengyi
• Is Part Of: Journal of manufacturing processes. Volume 27(2017)
• Page Start: 26
• Page End: 36
• Publication Date: 2017-06
• Subjects: Microalloyed steel -- Hot rolling -- TiO2 nano-additive -- Water-based lubricant; Production management -- Data processing -- Periodicals; Manufacturing processes -- Periodicals; Procestechnologie; Productietechniek; Production -- Gestion -- Informatique -- Périodiques; Fabrication -- Périodiques; Manufacturing processes; Production management -- Data processing; Periodicals; 670.5
• DOI: 10.1016/j.jmapro.2017.03.011
• Languages: English
• ISSNs: 1526-6125

Abstract

Highlights: The TiO2 nano-additive water-based lubricants which are environment-friendly with superb dispersity and stability were synthesised. The developed TiO2 nano-additive water-based lubricants exhibited excellent lubrication performance by reducing the rolling force, the surface roughness of rolled steel, and the thickness of oxide scale significantly. The lubrication mechanisms of the TiO2 nano-additive water-based lubricants were investigated and explained with clear evidence. The developed TiO2 nano-additive water-based lubricants showed promising lubricating properties to substitute the traditional neat oil and oil-based lubricants which lead to environmental pollution and also a problem of recycling. Abstract: Hot rolling tests of microalloyed steel were performed at rolling temperatures of 1050, 950, and 850 °C under different lubrication conditions, including dry, water lubrication, and 1.0 vol.% oil-in-water (O/W) emulsion. The rolling force, surface roughness, and thickness of the oxide scale of the rolled steel were investigated in order to evaluate the lubrication effects of TiO2 nano-additive water-based lubricants. The results show that the rolling force under a rolling temperature of 1050 °C does not vary significantly under all the lubrication conditions. The 4.0 wt.% TiO2 water-based lubricant, however, leads to the lowest rolling force at rolling temperatures of 950 and 850 °C. The application of 4.0 wt.% TiO2 water-based lubricant in hot rolling not only produces the best surface finish, but also results in the thinnest oxide scale of the rolled steels. The lubrication mechanisms of TiO2 nano-additive water-based lubricants in hot rolling were also discussed.