Continuous Casting

Continuous casting is a critical production stage where liquid steel produced in the steelmaking plant is converted into semi-finished products. Liquid steel is transferred from the ladle furnace through the tundish to the copper crystallizer. Through intense water cooling from the copper mold walls, the outer shell of the steel rapidly solidifies.

The Electromagnetic Stirring (EMS) system ensures homogeneous mixing of liquid steel during casting. Thanks to this technology, segregation (element separation) is minimized and internal structure homogeneity is guaranteed. Automatic mold level control is a critical parameter that directly affects casting surface quality.

In the secondary cooling zone, controlled cooling is applied through water spray zones. The cooling rate is optimized according to steel grade and cross-section size. Too rapid cooling can cause internal stresses, while too slow cooling can lead to segregation. Therefore, specific cooling curves are determined for each steel grade.

At the end of casting, billets are cut to desired lengths by the oxygen cutting unit. Cutting length is adjusted between 3 and 12 meters according to customer orders and subsequent process requirements. Each billet is marked with heat number and charge information to ensure full traceability.