Castables have been widely used in ladle for medium and small die casting. The average ladle age is 60 to 80 times. Compared with clay ladle bricks, the consumption of refractory materials per ton of steel is reduced by about 70%. Light burnt magnesia powder

The raw materials of the aluminum-magnesium castable for ladle are basically the same as the aluminum-magnesium refractory ramming material. In order to obtain normal temperature strength, sodium fluorosilicate should be added as a coagulant. The load softening temperature of the ladle aluminum-magnesium castable is low, which is the result of the combined effect of the addition of magnesia powder to form some low-baked substances and the combined action of water glass and sodium fluorosilicate.