Study of the Composition and Properties of Rolling Oil Produced from Used Motor Oil

The effectiveness of using used motor oil as the base for producing rolling oil is studied. A method is proposed for removing resins and aging products from the oil. The obtained results are analyzed. The composition of additives that acts as a triturating material and components that enhance the lubricating, wear-resistance, and protection properties of the rolling oil are determined. Acicular products of urea recrystallization are recommended as materials for fine polishing of parts; oleic acid, as the surfactant. It is shown that additional incorporation of graphenes into the rolling oil promotes running-in of engine parts.