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REFRACTORY & INSULATION DIVISION
APPLICATIONS
Refractory For Glass Furnace
detail
Magnesia-zirconia Brick
Mainly used in over1750℃ ultra high temperature kiln or erosion of high temperature furnace and kiln furniture.
| 项目 Item | 氧化锆空心球砖 Bubble zirconia Brick | 氧化锆砖 zirconia Brick | 镁锆砖 Magnesia-zirconia Brick |
| 最高使用温度℃ Max service temperature | 2200 | 2200 | —— |
| Zr(hf)O2（%） | 98（含稳定剂） | 98（含稳定剂） | ≥13 |
| MgO(%) | —— | —— | ≥76 |
| SiO2 (%) | ≤0.5 | ≤0.5 | ≤8 |
| Fe2O3 (%) | ≤0.2 | ≤0.2 | ≤0.8 |
| 体积密度(g/cm3) Bulk Density | ≤3.1 | ≥4.5 | ≥3.1 |
| 常温耐压强度(Mpa) Cold Crushing Strength | ≥8 | ≥50 | ≥45 |
| 荷重软化开始温度(℃) (0.2Mpa,0.6%) Refractoriness under Load | >1700 | >1700 | ≥1600 |
| 重烧线变化率 (%) (1700℃*8h) Reheating Linear Change Rate | ±0.2 | ＜0.5 | —— |
| 热膨胀系数(x10-6) （室温Room Temp. to -1300℃） Coefficient of Thermal Expansion | 7.8 | 8 | —— |
| 典型应用 Typical Application | 使用与大于1750℃的特高温窑炉或侵蚀严重的高温窑炉和窑具。 Mainly used in over1750℃ ultra high temperature kiln or erosion of high temperature furnace and kiln furniture. | ||
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