Low cement refractory castables are composed of refractory aggregate, refractory powder, appropriate amount of ultrafine powder, appropriate amount or small amount of calcium aluminate cement and trace amount of dispersant (high-efficiency debonding agent). Its use temperature is higher than that of ordinary refractory castables of the same material. It has the characteristics of high high temperature strength, low porosity, high bulk density and good slag resistance.
Clay and high-alumina low-cement refractory castables can be used for the lining of various heat treatment furnaces and rotary kilns such as heating furnaces and soaking furnaces.
Mullite low cement refractory castables can be used for the lining of various high temperature burners, the lining of water cooling pipes of heating furnaces, etc.
Corundum and chromium-containing corundum low-cement refractory castables can be used as linings for certain components of molten steel refining equipment outside the furnace, such as integral spray gun linings for jet metallurgy, impregnation tube linings for RH or DH vacuum degassing equipment, and can also be used as linings for industrial frequency induction furnaces, high-temperature wear-resistant linings for petrochemical catalytic cracking reactors, etc.
Al2O3-SiC-C low cement castable can be used as lining for blast furnace tapping channel, cupola tapping trough, integral powder spraying gun for molten iron pretreatment, etc.
Low cement castables of MgO-Al2O3 or Al2O3-MgO·Al2O3 can be used as linings of steel ladle and steel spout.
When selecting low-cement refractory castables, it is necessary to conduct systematic selection based on actual application conditions such as operating temperature, chemical corrosion environment, mechanical stress conditions, construction and maintenance restrictions, so as to significantly improve the equipment operating efficiency and life.
The technical team of Shandong Haixin Refractory Materials Co., Ltd. will provide you with professional support. We will provide you with the most professional opinions and suggestions for any problems you encounter in material selection and construction.