INCREASING THE DURABILITY OF THE SCREWS OF THE PRESSING DEVICE OF THE MILL STAND 650

Abstract

This research work deals with the use of chrome plating using the self-propagating high temperature synthesis (SHS) process on the idler screws of a Model 650 rolling mill. The main objective of the work is to improve the wear resistance and durability of the rolling mill mechanisms to improve its performance. Experimental studies include conducting tests on an MT-5 friction machine to evaluate the microhardness and wear resistance of the chrome plating. Also thermodynamic analysis of the process of obtaining the coating and study of the composition of the gas and condensed phase in the reactor were carried out. The results of the work can be used to optimize technological processes at rolling mills, improve product quality and reduce equipment maintenance costs. The study revealed that titanium and silicon doped chrome coating obtained using SHS technology promotes the formation of a protective layer that improves adhesion and resistance to mechanical effects. The obtained results confirm the efficiency of SHS technology application for increasing wear resistance and durability of screws of tensioning device of rolling mill 650, which is an actual task in the field of industrial machine building and tinplate production.