Aluminium industrial furnace in not stereotypes refractories development direction
With the development of aluminium industry, aluminum alloy melting furnace and the holding furnace refractory material used by phosphate combined with high alumina brick to develop in the direction of low cement castable. To prevent liquid aluminum to the refractory of the infiltration, often use reverse wetting agent to increase wetting Angle between liquid aluminum and refractory materials, and can prolong the service life of refractory materials at high temperature.
Of aluminium and aluminium alloy melting furnace and the holding furnace refractory material of the heating surface, low cement castable has replaced phosphate combined with high alumina brick. Reasons are as follows: in the structure of the low cement castable, have a smaller pore size, liquid aluminium and aluminium alloy are difficult to penetrate into the refractory materials, can be avoided by aluminum oxide reduction in refractory material, at the same time, the low cement castable has excellent wear resistance. In recent years, the low cement castable with liquid aluminum as additives increase the wetting Angle, so the improvement of its performance. This kind of new material gradually replace traditional phosphate brick and low cement castable.
