Research On Molten Steel Flow And Solidification In Beam Blank

H-beam blank section because of its complexity, outlet special structure, making themold during casting of molten steel flow conditions and slab, billet, which are verydifferent from the current research in the field of beam blank is also relatively scarcemany things can not be directly copied, this paper on the basis of previous scholars tofurther study the H-beam blank mold molten steel flow conditions and Solidification law.Using a dual-beam blank mold casting nozzle, when using120°three side holeswhen submerged nozzle, From the opposite side of the hole at the center of the web ofmolten steel flowing out of the outlet and the other side of the liquid steel collide, theyform the upper and lower recirculation zone, on the impact of the recirculation zone andthe protection level fluctuation slag melt, reflux area affected inclusions go up, thereforeneed to select a reasonable speed and outlet pull parameters to get the best flow structure.Mold level fluctuation situation directly affects the quality of the slab, which in previousstudies, usually as the free surface wall treatment, usually ignored steel-slag interfacefluctuations, the subject of a liquid to take VOF model tracking Score0.5fluctuation ofliquid steel to obtain a more realistic simulation results.During solidification, the cross section of the cooling effect of different differentlocations, The central topic of the web, flange ends, narrow face centers etc. solidifiedshell temperature changes and growth conditions and the different parameters of thecontinuous casting mold solidified shell thickness variations.The topics in ANSYS workbench platform, established a H-beam blankthree-dimensional flow and temperature fields coupling model, through Fluent finiteelement software to simulate the different sections of the flow field temperature fieldlevel fluctuation conditions and initial solidification shell growth conditions to determineoptimum pouring temperature, casting speed, and a reasonable choice of outletparameters, so as to develop a reasonable process parameters to improve the slab qualityand reduce the occurrence of breakouts, actually provided for the production of reliabletheoretical basis.