已阅 238 次 发布时间：2006-07-05 0:03:59
|
|
普通镁砖 |
优质镁砖 |
|
MZ-91 |
MZ-89 |
MZ-87 |
MZ-98 |
MZ-97 |
MZ-96 |
MZ-95 |
MZ-93 |
|
MgO≥% |
91 |
89 |
87 |
97.5 |
96.5 |
96 |
94.5 |
93 |
|
CaO≤% |
3 |
3 |
3 |
|
1.2 |
1.2 |
2.0 |
2.0 |
|
Fe2O3≤% |
|
|
|
0.7 |
0.9 |
1.0 |
|
|
|
SiO2 ≤% |
|
|
|
0.8 |
1.5 |
1.5 |
2.5 |
3.5 |
|
体积密度≥g/cm3 |
2.9 |
2.8 |
2.7 |
3.10 |
3.05 |
3.0 |
2.95 |
2.95 |
|
显气孔率≤% |
18 |
20 |
20 |
16 |
16 |
17 |
18 |
18 |
|
常温耐压强度≥MPa |
55 |
45 |
40 |
65 |
60 |
60 |
50 |
65 |
| 0.2MPa荷重软化温度≥℃ |
1530 |
1520 |
1500 |
1700 |
1700 |
1650 |
1600 |
1550 |
镁砖