The use of silica fume in refractory castables provides better particle packing. It allows for less water to be used while maintaining the same flow characteristics. It also promotes low temperature sintering and the formation of mullite in the matrix of the castable. This produces a castable that has a low permeability to avoid gas, slag and metal penetration. Castables incorporating silica fume are stronger than non-silica fume containing castables especially at high temperatures with higher density they attain lower porosity and are more volume stable
Features Characteristics for Refractory Silica Fume
1. Enhancing the fluid of pouring refractory.
2. Reducing the volume of used water.
3. be easy to shape.
4. Raising the production efficiency.
5. Raising the compact and intensity of refractory.
6. Enhance elevated temperature strength and thermal shock of refractory.
Application area ( for refractory)
Company Introduction
Xiamen Topbon Industry Co., Ltd was established in 2005 in Xiamen, which specializes in manufacturing and trading micro silica. We have more than 4 manufacturers in Sichuan, Yunnan and so on. And we could provide more than 50,000T micro silica every year with superior quality and competitive price.
Our micro silica contains 85% to 97% SiO2, which could be widely used in concrete, Refractory, Mortar and so on. If you have any enquiry, please feel free to contact me, I am always here to service you. Thank you!
