AL9697 Patching Refractory (Al2O3-SiO2)

Patching Refractory (Al2O3-SiO2) Description

Patching Refractory (Al2O3-SiO2) is a finely milled powder composed of alumina (Al2O3) and silica (SiO2). Its formulation is optimised for repairing and restoring refractory linings in high-temperature environments. The controlled particle size distribution enhances sintering behaviour, reduces stress in repair zones, and maintains chemical inertness. This composition effectively serves as a patching material for applications requiring resistance to thermal shock and chemical attack.

Patching Refractory (Al2O3-SiO2) Applications

Industrial Applications
- Used as a patching agent in furnace linings to restore thermal barriers by leveraging its calibrated oxide-silicate composition.
- Applied as an overlay in kiln repairs to minimise heat loss by utilising its thermal stability and uniform sintering properties.

Ceramic Processing Applications
- Employed as an additive in refractory formulations to improve material cohesion by controlling particle distribution.
- Serves as a repair filler in high-temperature ceramic installations to maintain structural integrity through its chemical inertness.

Patching Refractory (Al2O3-SiO2) Packing

Patching Refractory (Al2O3-SiO2) is packaged in moisture-resistant, sealed bags placed within rigid, protective boxes. Each package includes detailed batch labelling and production date for traceability. The packaging incorporates anti-contamination measures and cushioning to minimise mechanical damage. It is recommended to store the material in a dry, cool environment, and customisation options are available to meet specific storage and transport requirements.

Frequently Asked Questions

Q1: How does particle size distribution affect the repair performance?
A1: A narrow particle size distribution achieved through controlled milling enhances sintering behaviour and reduces localised stress, promoting uniform thermal expansion and an even repair layer in high-temperature environments.

Q2: What are the recommended storage conditions for this powder?
A2: The material should be stored in a dry, temperature-controlled environment. Moisture and fluctuating temperatures can induce agglomeration or premature oxidation, so sealed packaging with anti-contamination features is advised.

Q3: Can the formulation be adjusted for specific repair conditions?
A3: Yes, adjustments such as modifying particle size distribution or composition ratios can be made. Technical support is available to discuss tailored modifications that align with specific thermal or mechanical performance requirements.

Additional Information

Refractory materials based on alumina and silica are widely used in industrial settings for their ability to withstand extreme temperatures and oxidative environments. Their oxide-silicate structure plays a crucial role in regulating thermal expansion and resisting chemical degradation during prolonged exposure to high operational temperatures.

Understanding the physical and chemical behaviour of these refractory compounds is essential for optimising repair processes in furnaces, kilns, and other high-heat systems. Advances in milling and quality control continue to enhance the performance characteristics of these materials, supporting their application in demanding industrial environments.