The resistant material slag sample of 25#torpedo tank in a steel plant was analyzed.The results show that the re-sidual slag composition of 25#torpedo tank is quite different from that of blast-furnace slag,especially the MnO content is higher.By SEM analysis,it can be seen that MnO and CaO have greater melting loss to the aggregate and matrix of AlSIC carbon brick.During the pitting of the 25#torpedo tank cone and the operation of the tank,the local slag iron composition in the tank changes greatly,which melts the aluminum-silicon carbide carbon brick faster,resulting in local pitting.
torpedo tanksteel scrapaluminum silicon carbide carbon brickmelting loss
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