Thermal Conductivity of Refractory Brick
Refractory brick is a kind of shaped refractory materials with certain shapes and sizes and is manufactured through firing fire clay with some other mix agent. Refractory bricks are mainly used for building all kinds of furnaces and kilns with excellent properties of high temperature resistance, slag erosion, high strength, thermal conductivity and etc. Now I will introduce you about the thermal conductivity of refractory brick.
About the Thermal Conductivity of Refractory Brick
Thermal conductivity of refractory brick is 1.04 W/m·K. Thermal conductivity of refractory brick is the capacity of transferring heat energy, which is generally expressed with heat conductivity coefficient. Thermal conductivity is the heat through the unit area under the condition of unit time and unit temperature gradient in the process of transferring heat energy.
In the common temperature, all kinds of refractory bricks’ thermal conductivity can be 0-10%. The largest value is nearly one thousand times than the lowest value. With the temperature rising, all kinds of refractory bricks’ coefficient value tend to reduce. But the difference is still large. Such as, when at the temperature of 1000℃, light-weight silica bricks’ thermal conductivity is about 0.35W/(m*℃), recrystallized silicon carbide product is about 17.5W/(m*℃) and the graphite can reach up to 35 W/(m*℃).
Thermal conductivity of refractory bricks is not only affected by temperature but also its chemical-mineral composition and structure. When the refractory brick is made with crystal, nature of crystal has obvious influence on thermal conductivity. As all known that thermal conductivity of inorganic nonmetallic materials is lower than metal materials, which caused of their different metals.
Choose the professional refractory bricks and materials manufacturer to buy suitable refractory after learning above introduction of thermal conductivity of refractory brick.
