Determination method of rolling amount for setting work roll replacement cycle of thick plate rolling mill

摘要

The present invention relates to a method for determining the rolling amount of one replacement cycle of a work roll for improving plate crown and flatness in thick plate rolling, and considering the wear characteristics of the work roll of the thick plate rolling mill. It is an object of the present invention to provide a rolling amount determination method for setting a work roll replacement cycle of a thick plate rolling mill that can minimize plate crown generation by determining the rolling amount until replacement.;The present invention comprises the steps of measuring the amount of inspection and wear for the work roll drawn from the rolling mill to complete the rolling, collecting the polishing results after roll polishing, calculating the roll wear characteristic coefficient according to the roll history, roll diameter and roll wear characteristics Combining the coefficients to calculate the rolling amount determination coefficient for the work roll and determining the once-use rolling amount by the combination of the rolling amount determination coefficient and the roll diameter in order to use the polished roll for the next roll change. The method of determining the rolling amount for setting the work roll replacement cycle of the thick plate rolling mill configured to include the gist thereof.