Lightweight Heat Mullite Insulation Brick JM26

Brief introduction of mullite insulation brick JM26

Mullite insulation brick is a high alumina refractory material with mullite (3Al2O3-2SiO2) as the main crystalline phase. The general alumina content is between 65% and 75%. Mineral composition in addition to mullite, which contains low alumina also contains a small amount of glass phase and square quartz; high alumina also contains a small amount of corundum. Mullite insulation brick can be directly used for high-temperature kiln lining, has been widely used in shuttle kiln, roller kiln, glass and petrochemical kiln lining.

Characteristics of mullite insulation brick JM26

  1. Low thermal conductivity, with good thermal insulation and heat preservation effect.
  2. Low thermal fusion of mullite insulation bricks, due to low thermal conductivity, mullite series of lightweight insulation bricks accumulate little heat energy, energy-saving effect in intermittent operation is obvious.
  3. Low impurity content has a very low content of iron box alkali metal and other oxides, therefore, high refractoriness; higher aluminum content allows it to maintain good performance under reducing atmosphere.
  4. High compressive strength of mullite insulation bricks in the hot state.
  5. Accurate appearance size, speed up masonry, reduce the use of refractory clay, ensure the strength and stability of the masonry, thus extending the life of the lining
  6. Mullite insulation bricks can be processed into special shapes. to reduce the number of bricklaying blocks and masonry joints.

Parameters of mullite insulation brick JM26

JM-26
Model		Bulk DensityReheating
Linear
Change Rate		Cold 
Compressive
Strength		Modulus of Rupture Thermal ConductivityAl2O3SiO2Fe2O3
-g/cm³1400℃*12hMPaMpa350℃w/·k%%%
A0.7-0.921.20.215442.50.8
B0.8-0.72.51.40.255541.50.8
C0.9-0.52.81.60.35640.50.9
D1-0.53.21.80.325640.50.9