Open Access Conference Proceedings

The main purpose of this study is to develop an algorithm for determining the friction coefficient value using actual technological parameters of the hot rolling mill. The presented algorithm is based on Ekelund formula where the friction coefficient is expressed in terms of the roll bite contact geometry, which can be calculated using technological parameters such as forward slip, metal thickness and roll diameter. Processing of this collected data allows us to obtain the friction coefficient based on the rolling of several thousand strips under the conditions of a hot strip mill 1950. The research results demonstrate how the main technological factors affect the friction coefficient value where the roll speed is the most significant correlation factor. Statistical analysis shows that the friction coefficient dataset is very similar to results in the literature, moreover, this method makes it possible to refine them.

Keywords: Friction coefficient, hot strip rolling, forward slip

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