Abstract:

With development of continuous casting and secondary refining,the out-of-furnace refining treatments mainly proceed in steel ladle.The refractories for ladle lining are easy to constructed and have excellent metallurgical effects.MgO-CaO refractories can meet the above-mentioned requirements,and they are beneficial for clean steel production,but the applications for MgO-CaO refractories are limited by the hydration characteristics.The high quality MgO-CaO refractories fill the blank of ultra-high temperature researches especially above 1 900℃.