MAGNESIA-CARBON REFRACTORY

摘要

This unburnt magnesia-carbon refractory material for ladle lining which comprises refractory raw materials comprising grains of magnesia, graphite fine powder, and magnesia fine powder characterized in that the refractory raw materials comprise at most 30% by weight of fine grains of magnesia having a grain diameter of 1.5-0.3mm and at least 70% by weight of a graphite fine powder having a particle diameter of at most 1mm and magnesia fine powder having a particle diameter of at most 0.3mm. The weight ratio of graphite to magnesia fine powder being in the range from 2.5:1 to 0.4:1.