| Abstract: | Minimizing of heat loss of liquid steel through the ladle lining led to the integration of increasing insulation function of the permanent lining and high-quality insulating layer between the permanent lining and the ladle steel shell. In this paper, a study was made on physical and thermomechanical properties and corrosion resistance of calcium hexaluminate based castables. The chemical and physical properties of CA_6 based castables fabricated in this work can fulfill general requirements of the permanent lining in ladle. The permanent linings of CA_6 based castables offer superb thermal insulation and corrosion resistance, compared to conventional refractory systems of 300 t ladle in Baosteel. Both functions of insulation and safety work effectively in whole process of ladle operation. |
