Basic ideas of light corundum mullite brick
Corundum and mullite as the main materials made of light, heat preservation, heat insulation refractory products
Main components of light corundum mullite brick:
The Al2O3 content of light corundum mullite brick is: 1500 type: ≥ 70%, 1550 type: ≥ 75%, 1600 type: ≥ 80%, and ≥ 85%, the SiO2 content is: 1500 type ≤ 28%, 1550 type ≤ 23%, 1600 type ≤ 18%, and ≤ 13%, Fe2O3 content is not more than 0.5% - 0.8%, volume density is 1.3-1.7g/cm3, load (0.2MPa) softening temperature is not less than 1500 ℃ - 1600 ℃, thermal conductivity is 0.48-0.72w ／(m•K).
Manufacturing process and characteristics of light corundum mullite brick:
The light corundum mullite brick is made of fused white corundum and fused mullite. The loss on ignition agent is mixed and shaped in a certain proportion and fired at high temperature. It has the characteristics of high temperature resistance, low heat conduction (good heat preservation effect, thin kiln wall, low cost), high strength, high thermal shock stability, etc.
Application scope of light corundum mullite brick:
The products have the advantages of light weight, high temperature resistance, small change of reburning, good thermal shock resistance, low cost of kiln construction and obvious energy saving. Widely used in metallurgy, chemical industry, glass, ceramics, refractories and other industries of high temperature kiln, well received by users.
