Development of Castable of Safety Lining for High Speed Continuous Casting Tundish

摘要：

　　To meet the need of the development of high speed continuous casting technology of steel and the need of energy saving, a kind of castable of safety lining of tundish with low thermal conductivity and high strength was developed The castable was prepared by using high-alumina lightweight aggregate and flint clay as aggregates and using fused magnesia powder and fumed silica as bonding system.The main properties of the developed castable as follows: Al2O3 54.0%, cold modulus of rupture (CMOR) /cold crushing strength (CCS), 6.0/44.2 MPa (110 ℃ × 24 h), 12.3/75.4 MPa (1100 ℃ × 3 h),15.4/109.6 MPa (1400 ℃ × 3 h), thermal conductivity,0.55 W·m-1·K-1 (500 ℃), 0.67 W·m-1·K-1 (850 ℃),0.73 W·m-1·K-1 (1050 ℃).The thermal conductivity of the developed castable reduced 39% compared with the conventional high alumina based castable for safety lining of tundish.

关键词： safety lining of tundish castable binder thermal conductivity strength

作者: LUO Zhiyong LIU Kaiqi WANG Bingjun LIU Yongfei

作者单位: Beijing Key Laboratory of Advanced Ceramic and Refractories,China Iron and Steel Research Institute Group,Beijing,China

会议类型: 国际会议

会议名称: 第七届国际耐火材料学术会议(ISR2016)

会议地点: 西安

会议语种:英文

页码: 1-6

在线出版日期: 2016-09-20（万方平台首次上网日期，不代表论文的发表时间）