Key Factors to Consider When Buying Glass Furnace AZS Blocks

Introduction to Glass Furnace AZS Blocks

Glass Furnace AZS (Alumina-Zirconia-Silica) blocks are essential refractory materials used in glass melting furnaces. These electrocast AZS refractory blocks are known for their high resistance to corrosion, thermal shock, and wear, making them ideal for harsh glass production environments.

Key Properties of Electrocast AZS Refractory Blocks

When selecting AZS blocks, consider the following properties:

  • Chemical Composition: Typically composed of 33-41% ZrO₂, 45-53% Al₂O₃, and 11-16% SiO₂.
  • Thermal Resistance: High melting point (up to 1800°C) ensures durability in extreme temperatures.
  • Corrosion Resistance: Excellent resistance to molten glass and alkali vapors.
  • Density and Porosity: Low porosity (less than 1.5%) minimizes glass penetration.

Applications in Glass Furnaces

AZS blocks are primarily used in:

Application AreaBenefits
Melting TankHigh resistance to molten glass corrosion
SuperstructureExcellent thermal shock resistance
Throat and DoghouseMinimizes wear and tear

How to Choose the Right AZS Blocks

Consider these factors when purchasing:

  1. Grade: Standard (33% ZrO₂), High-Zirconia (41% ZrO₂), or Special grades for specific needs.
  2. Manufacturing Process: Electrocast blocks offer superior homogeneity and density compared to sintered products.
  3. Supplier Reputation: Choose suppliers with proven expertise in refractory materials for glass furnaces.

Why Choose Our AZS Blocks?

Our electrocast AZS refractory blocks are manufactured to meet international standards (ASTM, JIS) and are trusted by leading glass manufacturers worldwide. With over 20 years of experience, we ensure:

  • Customized solutions for specific furnace designs
  • Strict quality control and testing
  • Competitive pricing and reliable delivery

Contact our experts today to discuss your Glass Furnace AZS Block requirements and receive a tailored solution for your production needs.