Cold rammed SiC paste can be directly rammed at room temperature. It is specially used between the carbonaceous material and refractory material, bottom of furnace used for producing FeSi, Si and calcium carbide .

The red part in the picture is SiC paste, which is mainly used between carbonaceous lining and refractory brick materials, as well as in the tap hole and ladle lining.

 SiC paste is composed of SiC, Si powder and pitch binder. At temperatures above 1400 degrees, Si in the paste reacts with C in the pitch to form secondary SiC.

The smelting temperature of submerged arc furnace is generally high. At a high temperature of 1700-1800℃, this is far higher than the maximum working temperature of conventional refractory materials. Generally, SiO2/Al2O3 refractory materials are easily corroded by high-temperature molten liquid . However, SiC paste forms new secondary SiC and Si3N4 phases at high temperatures of 1400-1600 degrees, which increases the bonding strength while the new phases are not wetted by the slag and can fill the gaps after high-temperature shrinkage, thereby extending the service life.

The Advantages of the product :

◎Form an integral lining material with very low permeability

◎Easy to construct and install

◎Gases generated in the electrode crucible area are not easy to 

   penetrate into the refractory layer under the silicon carbide layer and 

   attack the refractory material below

◎ Reduce the temperature of the refractory layer under the silicon

    carbide layer

◎The possibility of the refractory material at the bottom of the furnace  

    being burned through is greatly reduced

◎The cost is much lower than that of using SiC bricks