刚玉莫来石轻质砖
Corundum-Mullite Lnsulation Brick
项 目Ltem | 1500型 | 1550型 | 1600型 |
AL2O3% | ≥70 | ≥75 | ≥80 | ≥85 |
SiO2% | ≤28 | ≤23 | ≤18 | ≤13 |
Fe2O3% | ≤0.8 | ≤0.8 | ≤0.6 | ≤0.5 |
体积密度g/cm3 Bulk density | 1.3-1.6 | 1.3-1.6 | 1.3-1.7 | 1.3-1.7 |
常温耐压强度MPa Cold crushing strength | ≥6 | ≥8 | ≥8 | ≥10 |
荷重软化开始温度℃（0.1MPa，0.6%） Refractoriness under load | ≥1500 | ≥1550 | ≥1600 | ≥1600 |
重烧线变化率%（1600℃x3h） Reheating linear change | ±0.5 | ±0.5 | ±0.5 | ±0.3 |
导热系数w/(m.k)(平均温度800℃) Thermal Conductivity | ≤0.48 | ≤0.53 | ≤0.7 | ≤0.72 |
最高使用温度℃ Max service temperature | 1500 | 1550 | 1600 | 1600 |
应用Application
主要用于焙烧耐火材料、工业陶瓷、日用陶瓷梭式窑的内衬和隧道窑高温带用砖，高温窑炉的隔热砖
Primarily used for lining of the shuttle kiln for calcining refractory material,industrial ceramice and domestic ceramics,and the bricks for the high temperature zone of tunnel kiln,and insulation brick for high-temperature furnace.
备注Remark
长期使用温度的标准为氧化气氛和间歇性窑炉
The standards for highest used temperature are oxidizing atmosphere and intermittent furnace.