basic ramming mixes
|
Main indexes |
ММНN | ММSN | ММSGN |
ММGN |
|
Content, %: |
||||
| MgO, not less |
60 |
65 | 60 |
70 |
| Cr2O3, within limits |
7-16 |
- | - |
- |
| CaO, not more |
5 |
3 | 3 |
3 |
| SiO2, not more |
4 |
3 | 2 |
2 |
| Al2O3 , within limits |
1,0-1,5 |
10-20 | 10-20 |
0,6-1,0 |
| С (nnn), within limits |
- |
- | 5-12 |
5-12 |
| Humidity, % |
13-16 |
13-16 | 18-20 |
18-20 |
|
CCS, Mpa: |
||||
| Grude sample after 12 hours soaking at room temperature after treatment, оС |
1-2 |
1-3 | 1-2 |
1-2 |
| at t = 200 оC |
10-20 |
10-20 | 4-7 |
3-5 |
| at t = 600 оC |
8-14 |
9-17 | 2-4 |
1-3 |
| at t = 1400 оC |
9-10 |
9-14 | 5-7 |
3-5 |
Application: ramming of nozzle-pocket block, ramming of gaps between wall and bottom of steel ladle, ramming of joints of walls and bottom of vacuum unit, monolitic lining of steel leadles walls by “Orbita”-mashine.