PRODUCT DESCRIPTION

► Low-Silica and Low-Sodium Fused Cast AZS Blocks SR-AZS36D

Description

Low-Silica and Low-Sodium Fused Cast AZS blocks represent the pinnacle of high-performance refractories for the modern glass industry. By reducing the vitreous phase (SiO₂) and alkali oxides (Na₂O), this advanced material achieves exceptional microstructural stability and superior corrosion resistance. It is specifically designed to eliminate the risk of glass contamination while withstanding the most aggressive thermal and chemical environments in high-pull glass furnaces.

Advantages

1. Ultra-Low Glass Phase Exudation
The minimized SiO₂ content significantly suppresses the vitreous phase exudation at high temperatures, effectively preventing stone, cord, and blister defects in premium glass products.

2. Superior Corrosion Resistance
A dense, intertwined matrix of corundum and baddeleyite crystals delivers unparalleled resistance against harsh chemical corrosion and mechanical erosion.

3.Minimized Na₂O for High-Purity Applications
Low sodium levels prevent secondary reaction layers, making it the ideal choice for high-purity glass types such as high-end electronic, optical, and premium borosilicate glass.

4. Exceptional Thermal Shock Resistance
Enhanced crystalline bonding ensures superior structural integrity during rapid temperature fluctuations, effectively eliminating cracking and spalling.

5. Extended Furnace Campaign Life
By minimizing wear in critical zones, these blocks drastically reduce downtime and extend the overall furnace lifespan.

Applications

SR-AZS36D is precision-engineered for critical, high-wear zones in float glass furnaces, premium electronic glass substrates, and specialty glass melting applications:

1. Melting Tank Sidewalls (High-Pull Zones)

Target Areas: Hot spots, severe fluid-friction zones, and high-output soda-lime or borosilicate furnace sidewalls.

Combat Performance: Endures relentless, high-temperature molten glass erosion and extends continuous campaign lifespans.

2. Throat & Flow Channels (Zero-Contamination Zones)

Target Areas: Throats and distributor channels.

Combat Performance: Outperforms standard refractories where liquid velocity peaks, guaranteeing zero-contamination and pristine glass quality.

3. Doghouse Corners & Facers (Maximum Mechanical Stress)

Target Areas: Doghouses and adjacent corner blocks.

Combat Performance: Resists the combined destructive forces of raw material abrasion, chemical volatilization, and extreme thermal shock.

4. Electrode Blocks & Corners (High Electrical Resistivity)

Target Areas: Blocks surrounding boosting electrodes and specialized corners.

Combat Performance: Prevents accelerated refractory wear caused by intense localized currents, utilizing enhanced electrical resistivity and maximum structural density.

5. Premium Superstructures & Breast Walls (Anti-Vapor Zones)

Target Areas: Oxy-fuel furnaces, port necks, and high-temperature flame zones.

Combat Performance: Forms an impenetrable barrier against severe alkali vapor attacks and volatile batch carryover.

   TECHNIQUE DATA

Technical Data