Abstract
In recent years, the continuous casting process in which molten metal is constantly cast into semifinished shapes has been widely adopted in the steel and nonferrous metal producing industry, mainly due to its economic advantages associated with increased yields and the elimination of intermediate processing steps. Turbulent flow in submerged entrance nozzle and mold of continuous casting is associated with costly failure such as the entrainment of slag inclusions and the formation of surface defects. A number of previously studies have analyzed the flow. A CFD model study has done to decrease the turbulence within the mold by developing a 4-port submerged entry nozzle in comparison with conventional 2-port submerged entry nozzle. VOF (volume of fluid) simulation study has been done to find out the effect of turbulence within mold on slag metal interaction, level fluctuation, and risk of breakout. In all the cases the performance of new 4-port SEN over 2-port SEN has been compared by plotting graph.
Highlights
Steel maker around the world is emphasized to increase the production rate to cope with the global demand of steel in coming decade
Scientists have been interested in the fluid flow that is observed in the mold during continuous casting because the flow pattern affects the inner and the surface quality of the steel slab to a great extent
It has been found out that the velocity of flowing fluid for 2-port submerged entry nozzle (SEN) has high value as compared to 4-port SEN. It means that 4-port nozzle will provide less turbulence in mold compare to 2-port nozzle
Summary
Steel maker around the world is emphasized to increase the production rate to cope with the global demand of steel in coming decade. The supply of quality steel is demanding by customer To meet this stringent demand is very difficult as production machine has certain drawbacks and limitations. One of these drawbacks is creation of turbulence within mold during casting of steel at high casting speed. Scientists have been interested in the fluid flow that is observed in the mold during continuous casting because the flow pattern affects the inner and the surface quality of the steel slab to a great extent. The current research is to decrease the turbulence in the mold to increase the product quality and indirectly increasing the yield of caster without hampering the normal casting process
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