|
|
镁锆砖 |
电熔再结合镁砖 |
电熔再结合镁铬砖 |
| XMZR |
XDMZ-98 |
XDMZ-97 |
XDMZ-96 |
XDMZ-95 |
XDMC-12 |
| MgO ≥% |
76 |
97.5 |
97 |
96 |
95 |
70 |
| SiO2 ≤% |
|
0.8 |
1.0 |
1.2 |
1.5 |
2.5 |
| CaO ≤% |
|
|
1.2 |
1.2 |
1.5 |
1.0 |
| Fe2O3 ≤% |
|
0.6 |
0.9 |
1.0 |
1.2 |
|
| Cr2O3 ≥% |
|
|
|
|
|
12 |
| ZrO2 ≥% |
12 |
|
|
|
|
|
| 显气孔率 |
16 |
15 |
18 |
18 |
18 |
18 |
| 常温耐压强度 ≥MPa |
80 |
60 |
65 |
60 |
60 |
40 |
| 0.2MPa荷重软化温度T0.6≥℃ |
1640 |
T0.5
1700 |
1700 |
1650 |
1600 |
1650 |
| 体积密度 ≥g/cm3 |
3.2 |
3.05 |
3.05 |
3.0 |
2.95 |
3.0 |
| 热膨胀率%（℃） |
|
1.9(1400℃) |
|
|
|
|
| 热震稳定性 950℃风冷≥次 |
30 |
15 |
20 |
20 |
20 |
20 |
导热系数W/m.k
400℃
700℃
1100℃ |
|
7.5
5.5
4.2 |
|
|
|
|
|
|
