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  • Product Name: thermal insulation mullite bri...
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  Light Weight Mullite Insulation Brick

Size: 230 x 114 x 65 mm & Customized

Working Temperature °C: > 1450

Application: Light Weight Mullite Insulation Brick can be directly as a fire-resistant lining or insulation layer, but also in the high-temperature furnace burner brackets, burner fixed brick and light burner brick replacement products.

Description

Light Weight Mullite Insulation Brick, mainly based on aluminum silicate-based refractory materials, with some excellent performance, (especially high temperature creep performance) living in natural raw materials production Of the high aluminum products first.

Mullite composition AL203 in about 79%, Si02 in 21% is more appropriate, but there are a certain amount of raw materials in the impurity composition, at high temperatures will cause the composition of the composition, so as the impurity composition increases, will make vitreous and corundum And the molybdenum is formed into coarse grain structure, which makes the porosity of the product increase, the thermal shock stability and corrosion resistance are reduced, and cracks are likely to occur.

Product Characteristics:

  1. Low levels of iron and other impurities
  2. High mechanical intensity
  3. High refractoriness, can contact with the flame directly, suitable for various atmosphere
  4. High porosity, low volume density, low thermal conductivity
  5. Good heat insulating performance and energy-efficient
  6. Low creep rare at high temperature,good thermal shock stability
  7. Chemical corrosion resistance
  8. Long service life

Performance parameters

Index/spec. ρ=0.8 ρ=1.0 ρ=1.2
Classification temperature(℃) 1400 1550 1600
A1203(%)≥ 50~70 65~70 79
Fe203(%)≤ 0.5 0.5 0.5
Density(g/cm3) 0.8 1.0 1.2
Crushing strength(Mp) 3 5 7
Thermal Conductivity(350℃)w/(mk) 0.25 0.33 0.42
Refractoriness under load(℃)(0.2Mp,0.6%) 1400 1500 1600
Rebirth line change ≤0.9 ≤0.7 ≤0.5
Long term temperature usage(℃) 1200~1500 1200~1550 1500-1700

 

Application Areas:

  1. Roller kiln, drawer kiln, shuttle kiln, tunnel kiln, special ceramic sintering furnace;
  2. Blast furnace hot stove, sintering furnace, rolling furnace, ladle insulation lining;
  3. Forging furnace, melting furnace, vacuum furnace, carbonization furnace, tempering furnace;
  4. Cracking furnace, reforming furnace;
  5. Glass annealing furnace, glass melting furnace;
  6. Light Weight Mullite Insulation Brick can be directly as a fire-resistant lining or insulation layer, but also in the high-temperature furnace burner brackets, burner fixed brick and light burner brick replacement products.

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