氧化铝空心球砖 氧化铝 空心球制品 保温材料 厂家直销
空心球砖Bubble Bricks 项目Ltem | 氧化铝空心球砖 Alumina bubble brick | 氧化锆空心球砖Zirconia bubble brick | | 85砖 | 87砖 | 90砖 | 95砖 | 99砖 | 98砖 | AL2O3% | ≥85 | ≥87 | ≥90 | ≥95 | ≥99 | - | ZrO2% | - | - | - | - | - | ≥98(含稳定剂) | SiO2% | ≤13 | ≤12 | ≤8 | ≤4 | ≤0.2 | ≤0.2 | Fe2O3% | ≤0.3 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | 体积密度g/cm3 Bulk density | 1.2-1.7 | 1.3-1.5 | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 | 2.5-3.5 | 常温耐压强度MPa Cold crushing strength | ≥12 | ≥10 | ≥10 | ≥10 | ≥9 | ≥8 | 荷重软化开始温度℃(0.1MPa ,0.6%) Refractoriness under load | ≥1650 | ≥1650 | ≥1700 | ≥1700 | ≥1700 | ≥1700 | 重烧线变化率%(1600℃x3h) Reheating linear change | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.2 | 热膨胀系数x10-6(室温-1300℃) Thermal expansion coefficient | ~7.8 | ~7.8 | ~8.0 | ~8.0 | ~8.6 | ~9.1 | 导热系数 w/(m.k)(平均温度800℃) Thermal Conductivity | ≤0.8 | ≤0.8 | ≤1.3 | ≤1.4 | ≤1.5 | ≤0.3 | 最高使用温度℃ Max service temperature | 1680 | 1700 | 1700 | 1700 | 1800 | 2200 |
氧化铝空心球制品具有轻质耐高温,重烧线变化小,抗热震好,降低建窑成本,节能明显等优良性能。广泛应用于冶金、化工、玻璃、陶瓷、耐火材料等行业高温窑炉的内衬及超高温窑炉的隔热材料。中凯主网站:www.zzzknc.com
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