Innovation and Technology



Corundum Ramming Mix

Corundum ramming mix

Composition of corundum ramming material

Corundum based ramming material is an amorphous refractory material formed by strong ramming, which is made of particles and fine powder made from oxidized fused corundum according to a certain grading and added with appropriate binders. Combined with the corundum furnace bottom, material channel, and arch area, it can minimize the potential risk of glass penetration, ensure the flatness of relevant parts, and ensure the air tightness during heating.

Recommended Fields of Application:

Widely used for sealing between the bottom of glass kilns, material channels, and large arch bricks. Strengthening the furnace bottom with fused cast corundum bricks while improving glass quality and mechanical properties:

  • Its overall structure covers the entire surface
  • The composition of high-purity fused alumina particles enables the furnace bottom system of fused cast corundum refractory bricks to have excellent resistance to chemical erosion of molten glass at operating temperature.
  • The chemical uniformity of the bottom material of the fused alumina furnace can enable:
  • -Stabilizing the interface between glass and refractory materials is a key factor in improving glass quality,
  • -Reduce the difference in expansion in the horizontal direction.
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Physical and chemical indicators

Physical Indicators

AL2O3: 91.5%
SiO2: 5.5%
Others: 0.3%

Chemical Indicators

Loss on ignition: 4.5%
Bulk Density: 3.2 g/cm³(after heated)
Grain size: 0-5mm
Refractoriness: 1350 ℃
Adhesive: water+curing agent

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Advantages and characteristics of corundum ramming material

  • Exceptional High-Temperature Performance: Our refractory materials boast outstanding resistance to extreme temperatures, ensuring durability and reliability in high-temperature industrial settings.
  • Impressive Compressive Strength: They exhibit remarkable compressive strength, with the ability to withstand substantial loads without compromising structural integrity.
  • Minimal Thermal Expansion and Shrinkage: Our materials feature low thermal expansion and shrinkage rates, maintaining dimensional stability even when exposed to rapid temperature fluctuations.
  • Robust Glass Solution Corrosion Resistance: They offer strong resistance to corrosion from glass solutions, ensuring longevity in glass industry applications.
  • Superb Thermal Shock Resistance: Our materials excel in thermal shock resistance, with the capability to endure sudden temperature changes without cracking or damage.
  • Low Thermal Conductivity at High Temperatures: They provide excellent thermal insulation, with low thermal conductivity at elevated temperatures, helping to conserve energy in various processes.
  • Chemical Stability: Our refractory materials are chemically stable, showing no adverse reactions when in contact with molten metals or other chemicals.
  • Reduced Bubble Formation: They exhibit a weak tendency to produce bubbles, contributing to a smoother and more controlled manufacturing process.
  • Minimal Environmental Impact: Because their primary component is aluminum oxide, our materials have a negligible environmental impact and minimal pollution when used in glass production processes.

These qualities make our refractory materials the ideal choice for a wide range of high-temperature industrial applications.

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