- Time:Jul 18, 2023
Mullite insulation bricks and mullite refractory bricks are two different types of mullite products, which differ in material composition, performance and application. The following is a detailed introduction to the difference between mullite insulation bricks and mullite refractory bricks:
一. The difference in material composition:
1. Material composition of mullite insulation bricks: Mullite insulation bricks are mainly composed of mullite fibers and a certain proportion of organic or inorganic additives. Mullite fiber is a high-temperature refractory fiber with light weight, low thermal conductivity and excellent thermal insulation properties.
2. Material composition of mullite refractory bricks: Mullite refractory bricks are made of mullite ore and sintered at high temperature. Mullite ore mainly contains aluminum silicate compound, which has high temperature resistance and corrosion resistance.
二. the difference in thermal conductivity:
1. Fire resistance of mullite thermal insulation bricks: Mullite thermal insulation bricks have good thermal insulation properties due to their low density and the characteristics of mullite fibers. Its low thermal conductivity can effectively reduce heat conduction and loss.
2. Fire resistance of mullite refractory bricks: Due to the difference in sintering process and material composition, mullite refractory bricks usually have high density and high thermal conductivity. Compared with insulation bricks, refractory bricks are more suitable to withstand thermal shock and chemical attack in high temperature environment.
三. the difference in fire resistance:
1. Fire resistance of mullite insulation bricks: Due to its fiber structure, mullite insulation bricks may soften or melt at high temperatures, so their use temperature is usually low. It is mainly used to provide thermal insulation as a supplement to the internal refractory material.
2. Fire resistance of mullite refractory bricks: Mullite refractory bricks have extremely high fire resistance and can withstand high temperature, thermal shock and chemical erosion. It is commonly applied to the internal lining of high temperature industrial equipment, providing structural support and fire protection.
四. the difference in application fields:
1. Application fields of mullite insulation bricks: mullite insulation bricks are widely used in metallurgy, electric power, petrochemical and other industrial fields, as the insulation layer of furnaces and kilns, reducing energy loss and improving energy efficiency.
2. Application fields of mullite refractory bricks: Mullite refractory bricks are suitable for lining of high-temperature equipment and kilns, such as converters, glass kilns, and cement kilns in the steel industry.
