Huachen Refractory

Fused Cast Block Magnesia Chrome Brick Manufacturer

        
Please leave your message in the form below and we will reply by e-mail

 
Home > Glass furnace used refractory brick > Fused cast AZS 33 block

Fused cast AZS 33 block

AZS-33 has excellent corrosion resistance towards glass liquid, and is unlikely to form stones or other defects. The possibility of generating small bubbles is also relatively low. Therefore, AZS-33 bricks are widely used in glass furnaces, mainly applicable to the upper structure of the melting pool, the wall bricks of the working pool, the paving bricks and the material channels.

Other name: Fused cast AZS 33 block

Model Number: Fused cast AZS 33 block

Certification: ISO9001-14001

Minimum Order Quantity: 5 MT

Share With:

Fused cast AZS 33 block

Al2O3: 50%

Zirconia 32.5%

Volume density: 3.75 grams per cubic centimeter

Cold pressing strength: 200 megapascals

Core advantages

Outstanding cost-performance: Among the AZS series, AZS-33 has the lowest cost. It offers far superior erosion resistance compared to common sintered refractory materials (such as aluminosilicate and corundum) at an acceptable cost, making it an economical choice for "entry-level" high-zirconium materials.

Excellent thermal shock stability: Among the three mainstream AZS bricks (33/36/41), AZS-33 has the lowest zirconium content, and its thermal expansion coefficient is relatively small. The internal glass phase content and structure make it the most stable in responding to significant temperature changes, and it is less prone to large cracks due to thermal stress.

Good resistance to glass liquid erosion: Although its erosion resistance is weaker than AZS-36 and AZS-41, its 33% ZrO₂ content still forms an effective scheelite-cordierite eutectic structure, providing good resistance to molten glass (especially sodium calcium glass), and its performance is far superior to non-zirconium materials.

Better machinability: Compared to higher-grade AZS bricks, its hardness and brittleness are relatively lower, making it easier to process in cutting, grinding, and other on-site processing operations.

 Main applications

Due to its "economical and practical, balanced comprehensive performance" characteristics, AZS-33 is widely used in areas of glass kilns where the erosion environment is not the most extreme:

Float glass, flat glass kilns:

The pool walls and bottom of the clarification and working sections (these areas have relatively milder temperatures, flow rates, and erosion compared to the melting section).

The top of the grid body in the upper part of the heat storage chamber (used to resist the erosion of high-temperature dust and alkali vapor).

Some breast walls and small furnace slopes.

Some kiln sections' liquid flow side walls or upper structures (as an alternative to AZS-36 or for small kilns).

Glassware, bottle and can kilns:

Extensively used, often placed on the rear part of the melting pool, clarification pool, working pool, and pool walls and bottoms of the supply path. For many small and medium-sized kilns, AZS-33 is the main lining material.

Glass fiber kilns:

Used in channels and transition sections with relatively weak erosion.

Special glass and electronic glass kilns:

Used for special glass furnaces with not particularly strong erosion, or as secondary erosion areas in the design.


Inquiry title:
E-mail
Content: