氧化铝空心球
ItemAKZ-85AKZ-90AKZ-99化学指标Chemical composition%Al2O3≥85≥90≥99SiO2≤13≤8≤0.2Fe2O3≤0.5≤0.5≤0.5显气孔率Apparent Porosity％58-6258-6258-62体积密度Bulk Density g/cm31.4-1.71.4-1.71.4-1.7抗压强度Cold Crushing Strength Mpa≥12≥10≥9荷重软化温度0.1Mpa Refractoriness Under Load T0
| Item | AKZ-85 | AKZ-90 | AKZ-99 | |
| 化学指标Chemical composition% | Al2O3 | ≥85 | ≥90 | ≥99 |
| SiO2 | ≤13 | ≤8 | ≤0.2 | |
| Fe2O3 | ≤0.5 | ≤0.5 | ≤0.5 | |
| 显气孔率Apparent Porosity％ | 58-62 | 58-62 | 58-62 | |
| 体积密度Bulk Density g/cm3 | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 | |
| 抗压强度Cold Crushing Strength Mpa | ≥12 | ≥10 | ≥9 | |
| 荷重软化温度0.1Mpa Refractoriness Under Load T0.6 ℃ | ≥1650 | ≥1700 | ≥1700 | |
| 重烧永久线变化Permanent Linear Change On Reheating（%）1500℃X2h | ±0.3 | ±0.3 | ±0.3 | |
| 20－1300℃ 热膨胀Thermal Expansion % (x 10-6) | 0-7.8 | 0-8.0 | 0-8.6 | |
| 导热系数Thermal Conductivity(Average 800℃) W/(M.K) | ≤0.8 | ≤1.3 | ≤1.5 | |
| 最大工作温度Max Service Temperature ℃ | 1680 | 1700 | 180 | |
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