本公司开发的镁质捣打料，是选用优质镁砂，电熔镁砂及合成镁砂，经不同粒度配比，加入各种复合结合剂，添加剂，烧结剂混合而成。其特点是强度高，整体性好，具有良好高温体积稳定和抗侵蚀性，是各种工业窑炉工作衬、窑封层理想材料。
The magnesia ramming mix developed by our Company is made of high quality magnesia, electric fused magnesia and composite magnesia combined with various kinds of composite wedding agent,additive and sintering agent through different compounding ratios of grain size.With high intensity,excellent integrity, excellent high temperature stability and erosion resistance, it is the ideal material as working lining and seal layer of various kinds of industrial furnaces.
| 牌号Brand | MR-97 | MR-95 | MRG-97 | MRG-95 | MRWB-95 | MRWBG-LG | MGRW-60 | |
| 最高使用温度 Max temperature(℃) |
1800 | 1750 | 1800 | 1750 | 1750 | 1800 | 1700 | |
| 标准施工量 Standard construction dosage(t/m3) |
3.0 | 2.9 | 3.0 | 2.9 | 2.9 | 2.8 | 2.6 | |
| 线变化率（%） Permanent linear change |
1200℃×3h | -0.08 | -0.11 | -0.03 | -0.13 | -0.37 | -0.10 | |
| 1600℃×3h | -0.34 | -0.57 | -0.20 | -0.54 | -0.66 | -0.17 | -0.30 | |
| 耐压强度 （Mpa） Cold crushing strength |
110℃×24h | 35.7 | 33.8 | 87.5 | 77.0 | 63.0 | 65.0 | 22.0 |
| 1200℃×24h | 42.2 | 40.0 | 43.4 | 40.1 | 36.4 | 35.0 | ||
| 1600℃×3h | 61.0 | 55.6 | 81.4 | 65.4 | 58.0 | 63.0 | 16.0 | |
| 体积密度（g/m3） Bulk density |
1200℃×3h | 2.85 | 2.73 | 2.90 | 2.84 | 2.83 | 2.73 | |
| 1600℃×3h | 2.93 | 2.78 | 2.98 | 2.87 | 2.84 | 2.75 | 2.68 | |
| 粒度（mm） Grain size |
极限粒度 Max grain size |
5 | 5 | 5 | 5 | 5 | 5-2 | 4 |
| +1.0（%） | 51-55 | 51-55 | 51-55 | 51-55 | 51-55 | |||
| -0.074（%） | 27-35 | 27-35 | 27-35 | 27-35 | 27-35 | |||
| MgO | 94.91 | 92.01 | 95.04 | 92.41 | 95.02 | 95-97 | 57 | |
| CaO | 1.15 | 1.39 | 1.43 | 1.48 | 1.57 | 1-1.6 | ||
| Cr2O3 | 1.60 | 1.50 | 16 | |||||
| SiO2 | 2.28 | 3.02 | 0.82 | 2.21 | 2.13 | 1-2.5 | ||
| 特征 Features | 抗蚀 Corrosion -resistant |
抗蚀 Corrosion -resistant |
抗蚀 Corrosion -resistant |
抗蚀抗热震 Corrosion and thermal shock resistance |
抗蚀抗热震 Corrosion and thermal shock resistance |
抗蚀 Corrosion-resistant |
耐热震 Thermal shock resistance |
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| 施工方法 Construction method |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
湿式作业 Wet method operation |
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| 使用部位 Application | 电炉炉床出钢口等 Tap hole and bed of the electric furnace |
电炉炉床出钢口等 Tap hole and bed of the electric furnace |
电炉炉床出钢口等 Tap hole and bed of the electric furnace |
电炉炉床出钢口等 Tap hole and bed of the electric furnace |
电炉炉床出钢口等 Tap hole and bed of the electric furnace |
电炉炉床出钢口等 Tap hole and bed of the electric furnace |
隔热窑炉工业窑炉 Heat insulating furnace industrial furnace |
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