The design of the tundish weir can change the flow state of the molten steel in the tundish, effectively promote the floating of harmful impurities in the molten steel, thereby enhancing the function of the tundish in purifying the molten steel.
Main physical and chemical performance index:
|
Index |
Magnesia |
Magnesia alumina |
Corundum |
|
|
Al2O3 % ≥ |
--- |
50 |
85 |
|
|
MgO % ≥ |
80 |
25 |
--- |
|
|
Bulk density g/cm3 ≥ |
2.9 |
2.9 |
2.8 |
|
|
CCS MPa ≥ |
110℃ |
60 |
50 |
30 |
|
|
1550℃ |
20 |
40 |
35 |
|
Linear change after heating % |
1500℃ |
0~+1.5 |
0~+3.0 |
0~+1.5 |
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