Fused Cast Zirconium Mullite Brick
| 项目
Item |
HT-GM5 |
HT-GM20 |
| 化学成分 %
Chemical composition |
SiO2 |
17.0-20.0 |
5.0-8.0 |
| Al2O3 |
71.0-74.0 |
71.0-74.0 |
| ZrO2 |
4.5-6.0 |
19.0-22.0 |
| Fe2O3 |
≤0.5 |
≤0.5 |
| Na2O |
≤1.0 |
≤1.0 |
| CaO |
≤0.5 |
≤0.5 |
| 真密度(g/cm3)
True Density |
≥3.0 |
≥3.0 |
| 气孔率 %
Apparent Prosity |
5-8 |
5-8 |
| 常温抗压强度 MPa
Cold Crushing Strength |
≥250 |
≥250 |
| 高温抗压强度 Mpa(1300℃)
Hot Crushing Strength 1300℃ |
45 |
120 |
| 热导率(1250℃)W/m.k
Thermal conductivity (1250℃) |
4.6 |
9.2 |
| 热线性膨胀(1150℃)%
Linear thermal expansion(1150℃) |
0.9 |
0.9 |
| 体积密度(g/cm3)
Bulk Density |
PT(RN) |
3.0 |
3.0 |
| WS(VF) |
3.2 |
3.2 |
| 晶相分析 %
Crystallographic Analysis |
刚玉相 Corundum Phase |
39 |
71 |
| 莫来石相 Mullite Phase |
41 |
/ |
| 玻璃相 Glass Phase |
15 |
9 |
| 斜锆石 Baddeleyite |
5 |
20 |