| Friction and lubrication to the rolling of hot strip mill products have An important impact. Broadly speaking, the lubricant plays a effect in cooling, cleaning and lubricating in rolling process, so the template, pinhole, surface state etc.,mainly depend on the performance of lubricants and its use. Especially in the rolling of hot rolled plate, the lubricant has been put forward higher requirements. At present, the hot strip mill, also known as hot rolling oil, with the exception of its own shortcomings, because of the complexity and poor of rolling conditions, these will definitely have a certain impact in use, and also will affect the quality of strip,so it is the most important reason which is hindering the production of hot strip mill increase.With the increasingly demanding of the strip quality in future, these problems will become more prominent. Therefore, the choice of hot-rolled oil in the rolling process, as well as the changes is very import to the quality of hot-rolled strip.The paper mainly analyzed the mechanism of hot-rolling and the impact of lubrication performance on rolling process, calculated and derived the formula of the thickness of the lubrication film under different conditions,through the analysis of the process of rolling friction mechanism.In view of three different kinds of hot-rolled oil which would be used in the project on craft lubrication to the 1500mm hot rolling mill production line of Shanxi Haixin Iron and Steel, the paper carried out the simulation reaserch.Through the simulation of the temperature in rolling,the paper compared of the scope of influence that three kinds of oil studies brought on the pressure by the way of the experiment of hot extrusion. At the same time, the paper analyzed the oily water mixture of hot-rolled oil of different concentrationsl.At last,the paper will choose one or two kind of hot-rolled oil which have the better performance to prepare for the debugging in future.
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