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board(A), middle : slag line(B), bottom : metal zone(C)
Table 2. Chemical composition of MgO-Cr2O3 brick, A, from hot face to the 50mm
inside.
wt%
Depth
MgO
Cr2O3
Al2O3
SiO2
Fe2O3
CaO
Na2O
TiO2
Surface
27.69
17.52
11.74
0.86
31.56
0.80
0.044
0.13
0∼10mm
50.49
22.29
8.69
0.97
10.75
0.74
0.028
0.096
1
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