Refractory Technology
Chrome magnesite is not used in the

Aluminium melting furnaces
Wear out lining of steel melting furnaces
Inner lining of L.D. converter
All of these

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Refractory Technology
Thermal conductivity of refractory bricks

Increases with decrease in porosity
Decreases with decreases in porosity
Increases with the amount of air entrapped in pores
Is independent of its porosity and is maximum for insulating bricks

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