DOI: https://doi.org/10.31319/2519-8106.2(41)2019.185057

MODELING THE INFLUENCE OF ROLL WEAR ON THE ROLLING PARAMETERS IN A WIRE ROD BLOCK

Олег Павлович Максименко, Володимир Михайлович Самохвал, Андрій Юрійович Оробцев, Максим Миколайович Штода, Костянтин Костянтинович Марченко

Анотація


A mathematical model of the rolling process in a wire rod block with the determination of the average resultant force of the internal longitudinal forces of the metal in the roll bite deformation is proposed, as a criterion for the rolling process stability, and the analysis of the limits of the process self-regulation from perturbations arising from the wear of the rolls of one of the modules. The influence of the wear of the gauge roll of one of the modules on the rolling parameters in all subsequent modules is revealed, which is manifested in the gradual increase of tension stresses between the modules. Such an increase in tension within the self-regulating equilibrium conditions in the deformation roll bite of the fifth and all subsequent modules leads to a decrease in the rolling moments in these modules and in general for the block. The model allows to determine the maximum wear of the calibers, which maintains the stability of the rolling process, which is estimated by the value of the average resulting longitudinal forces.

Ключові слова


roll wear; interstand tension; process stability; torque rolling; average resultant longitudinal forces

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Посилання


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ISSN 2519-8106 (Print), eISSN 2519-8114 (Online)