指标 | 体积密度 (g/cm3) | 显气孔率 (%) | 吸水率(%) |
保证值 | ≥ 3.5 | ≤ 5.0 | ≤1.5 |
典型值 | 3.56 | 2.35 | 0.72 |
比重 | 3.96 g/cm3 |
莫氏硬度 | 9.0 |
努普硬度 | 2000kg/cm3 |
热导率 | (100℃)0.069 cal/sec cm℃ |
热容量 | (20℃)0.21cal/gm/(100℃) |
熔点 | 2050℃ |
使用温度 | min 1800℃ |
折射率 | 1.76 |
外观 | 白色晶体或粉末 |
项目 | AL2O3 | SiO2 | Fe2O3 | Na2O |
保证值 | 99.2 | 0.18 | 0.1 | 0.4 |
典型值 | 99.45 | 0.05 | 0.02 | 0.34 |
规格 | 粒度分布 | 典型值% | 不低于/不超过 % |
5-10mm | 5-10mm | 92 | 75 |
7-10mm | 58 | 40 | |
5-7mm | 35 | 20 | |
3-6mm | 3-6mm | 98 | 90 |
4-6mm | 55 | 40 | |
3-4mm | 44 | 20 | |
1-3mm | 1-3mm | 99 | 90 |
2-3mm | 52 | 30 | |
1-2mm | 47 | 30 | |
1-2mm | +2.36mm | 8 | 10 |
-1mm | 5 | 10 | |
0.5-1mm | 0.5-1.18mm | 95 | 90 |
0.7-1.18mm | 45 | 35 | |
0.5-0.7mm | 50 | 20 | |
0.2-0.6mm | +0.6mm | 5 | 10 |
-0.2mm | 4 | 10 | |
0-0.5mm | 0-0.5mm | 95 | 90 |
0.15-0.5mm | 49 | 38 | |
-200# | +0.088mm | 0.3 | 3 |
-0.044mm | 96 | 90 | |
-325# | -0.044mm | 97 | 85 |