Energy Reduction Technologies Based on the Lubricant Supply in the Roll Contact System "Quarto" during the Hot Strip Rolling

Abstract

With the development of the contemporary industry, a need arises in the production of high - strength steels that can withstand heavy loads and work in harsh conditions. Industrial equipment (in particular, a hot-rolling mill) is subject to high loads that are close to critical. Therefore, the issues related to the development and applications of methods aimed at reducing of energy consumption during rolling are being solved before the product output. One of the efficient ways to reduce energy-power parameters of the process is the use of the rolling lubrication feed systems (RLFS) in the production of hot-rolled products. Accordingly, it is necessary to consider the method of supplying lubricating material (LM), its quantity, shared contact surfaces nature. Currently, one of the significant drawbacks in the RLFS is the lack of correlation between the quantity of fed LM and properties of the rolled material. As a result, RLFS are used in a restricted mode, and power consumption reduction is not significant: 3-6%.

Effect of Rolling Parameters on Surface Strain Variation in Hot Strip Rolling

“…In addition, the amount of work roll wear is lowered by 30% when lubrication is applied . It helps to improve the lifespan of work roll and reduce the energy consumption of rolling process . Li built a work roll wear model considered lubrication for strip profile and flatness control by optimal shifting step of work roll .…”

An Experimental Study of the Thermal State of a Steel Billet during Hot Rolling

“…To deform a workpiece, mill rollsare used. The control over a workpiece thermal state is an important task aimed at the qualityof its manufacturing [7][8][9][10][11][12][13]. To achieve the goal, a mathematical model is developedfor calculating a steel billetthermal state.…”

“…The study results are useful for researchers and developers of the hot rolling technology,and they can be appliedinthe organization of the rolling process with an allowance for the temperature distribution. Based on the results, the parameters of steel billetproductioncan be adjusted or changed [14][15][16][17][18].The aim of the study is the development of a mathematical model, describing a steel bullet thermal state during a hot rolling process.…”

Elastohydrodynamic Friction Mode as a Method of Surface Finishing Excluding Burnishing

“…Processes of friction and wear significantly depend on constructive junction design, selection of wear resistant materials and effective lubricants for them, as well as the conditions of the machinery operation. Currently, a large number of scientific works [7][8][9][10][11][16][17][18][19][20] are devoted to the review of the contact interaction conditions with the use a lubricant. The method of elastohydrodynamic lubrication is of particular interest when studying different kinds of lubrication.…”