High-temperature-resistant aqueous metal rolling lubricant and preparation method thereof

Abstract

This invention provides a high-temperature resistant water-based metal rolling lubricant and its preparation method. Two-dimensional nano-clay sheets are dispersed in deionized water to obtain a nano-clay sol, which can suppress the Leidenfrost effect. The clay sheets are modified with a zwitterionic surfactant to obtain a high-temperature resistant water-based metal hot rolling lubricant. This lubricant can suppress or even eliminate the Leidenfrost effect of water droplets on high-temperature metal surfaces, promote the contact wetting effect between the lubricant and the surface of high-temperature rolls, and also possesses good rolling lubrication performance. The high-temperature water-based metal rolling lubricant of this invention can effectively wet the surface of high-temperature metal rolls (200℃~500℃), forming a continuous lubricating layer between the metal and the roll, achieving friction reduction and wear resistance. Furthermore, the high-temperature water-based metal rolling lubricant of this invention does not contain oil phase components, is low-carbon and energy-saving, and environmentally friendly, and can be widely used in various metal rolling applications.

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