适用于循环硫化床锅炉旋风筒、炉墙内衬和煤灰冲击与磨损严重的部位。
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刚玉耐磨可塑料以高铝矾土熟料、刚玉和碳化硅等耐磨原料为骨料,以粉状或液体粘结剂结合,外掺若干添加剂配制而成的,高温下耐磨性能优良的可塑料。它具有常温可塑性好。高温下微膨胀,高温后强度高,密封性能好,施工方便等特点。
牌号 Brand | GS—70 | GS—75 | GS—80 | GS—85 | |
化学成分(%)Chemical composition | Al2O3≥ | 70 | 75 | 80 | 85 |
冷态耐压强度(MPa)Cold crushing strength |
110℃×24h After drying at |
10 | 12 | 15 | 15 |
600℃×3h After firing at |
16 | 20 | 20 | 22 | |
1350℃×3h After firing at |
25 | 25 | 26 | 28 | |
荷重软化温度(℃)Refractoriness under load |
-0.2% | 1380 | 1400 | 1450 | 1500 |
-0.4% | 1500 | 1550 | 1550 | 1580 | |
烧后线变化率(%)Linear changing after burnt |
1350℃×3h After firing at |
±2 | ±2 | ±1.5 | ±1.5 |
体积密度(g./cm3)Bulk density |
1350℃×3h After firing at |
2.6 | 2.65 | 2.7 | 2.8 |
耐火度(℃)Refractoriness≥ | 1700 | 1750 | 1790 | 1790 | |
施工用量(kg/m3)Amount for construction | 2800 | 2850 | 2900 | 3000 |
适用于循环硫化床锅炉旋风筒、炉墙内衬和煤灰冲击与磨损严重的部位。