耐火预制件 Prefabricated refractory block理化指标Physico-chemical index 内容Content型号Grade | 低水泥结合料 Low-cement bond refractory | 磷酸结合料 Phosphate bond refractory | CM-NT-55 | CM-NT-60 | CM-NT-70 | CM-NT-80 | CM-NT-90 | CM-NT-60 | CM-NT-70 | CM-NT-80 | 化学成分 %Chem.comp. | Al2O3 ≥ | 55 | 60 | 70 | 80 | 90 | 60 | 70 | 80 | 体积密度 Bd | g/cm3 | 2.4 | 2.5 | 2.7 | 2.85 | 3.0 | 2.5 | 2.7 | 2.8 | 抗折强度MOR Mpa | 110℃×24h | 7 | 7 | 8 | 9 | 10 | 6 | 6 | 8 | 1300℃×3h | 10 | 11 | 11 | 12 | 13 | 8 | 10 | 10 | 耐压强度CCS Mpa ≥ | 110℃×24h | 50 | 60 | 70 | 80 | 80 | 20 | 20 | 25 | 1300℃×3h | 70 | 75 | 90 | 100 | 100 | 50 | 60 | 65 | 烧后线变化率 LC% burnout | 1300℃×3h | ±0.5 | ±0.5 | ±0.5 | ±0.5 | ±0.3 | ±0.5 | ±0.5 | ±0.5 | 抗热震性 次Thermal shock resistance time | ≥ | 20 | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 长期使用温度Long time serving temp. | ℃ | 1350 | 1400 | 1450 | 1500 | 1700 | 1450 | 1500 | 1600 | |