Silicon powder special for refractory
Silicon powder it is silver gray or dark gray powder with metallic luster.
With the characteristic of high melting point, good heat resistance, high resistivity and high antioxidant effect, it is Known as “industrial MSG”- indispensable basic raw materials to many high-tech industry,such as refractory castables,stopper rod.
1. There are many pores in traditional refractory materials. Silicon powder can enter into the pores, increase the volume density and reduce the porosity.
2. Silicon powder has strong activity, it can form colloid particles in the water. Add the right amount of dispersant, can increase liquidity, improve the performance of pouring.
3. Silicon powder is easy to form Si-OH in water,which is with strong hydrophilic and activity,can enhance the cohesion of refractory materials. Meanwhile, it can improve high-temperature behavior greatly and prolong the service life of refractory products.