STEEL MILLS

Continuous casting rollers are subjected to varying combinations of rather complex individual wear mechanisms. This leads to rapid deterioration of the rollers when their surface is not properly protected. The type of wear and its intensity depend on the position of the rollers in the continuous casting line as the slab temperature drops and the gravitational force acting on the rollers increases. At the upper part of the line, wet corrosion, thermal shock and resulting fire cracking are predominant. At the lower part of the line, mechanical stresses and metal-to-metal wear progressively play a more significant role