Tianjian Brilliance Figure ladle drainage sand

Chrome drainage sand physical and chemical indicators (%) Particle size (mm) 0.5 ~ 3.0 Cr2O3 38 ± 10 press interest angle (degrees) 29.5 Fe2O3 1.2 ± 0.5 sintering case (1650 ℃) good SiO2 52 ± 10 Bulk density (g / cm3 ) 2.80 MgO ≤15 case of thermal shock cracking Al2O3 1.0 ± 0.5 Tc (solid) ≤3 drainage sand, also known as drainage agent, a ladle filled seat and a bulk refractory brick inside the nozzle in the converter (or EAF) before tapping into the molten steel in order to prevent entry when pouring steel and then its release, from the role of guiding the flow. Drainage sand quality greatly restricts the merits of automatic open casting ladle rate level. High automatic start pouring ladle rate of stable casting operation process to ensure the quality of steel plays a very important role, but also the continuous casting with a long ladder, to achieve full protection of casting an important prerequisite.