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Fused Cast AZS Block

Fused Cast AZS Block
Details:
Fused Cast AZS Blocks are manufactured through a specialized fusion casting process. High-purity alumina powder and zircon sand are melted in an electric furnace, then cast into molds and allowed to cool, forming a dense and homogenous structure. This process results in a material with a compact microstructure, high strength, and excellent resistance to thermal shock and corrosion. The blocks are available in various grades, such as AZS-33#, AZS-36#, and AZS-41#, each offering different levels of corrosion resistance and thermal stability.
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Description
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Fused Cast AZS Block (Alumina-Zirconia-Silica) refractory bricks represent the gold standard in high-performance furnace linings, specifically engineered to withstand the most demanding thermal and chemical environments. Manufactured through advanced electric arc fusion technology, azs bricks offer unparalleled density, corrosion resistance, and thermal stability - making them the preferred choice for glass manufacturers, metallurgical operations, and chemical processors worldwide

 

Product Parameters

 

Brand

Properties

AZS-41

AZS-36

AZS-33

(%)Chemical Analysis

ZrO2

40

35

32

SiO2

13.0

14

15.5

Na2O

1.3

1.4

1.5

Fe2O3

0.10

0.10

0.10

TiO2

0.05

0.05

0.05

Cold Crushing Strength (MPa)

350

350

350

Bulk Density (g/cm3)

Regular cast

3.55

3.45

3.4

Void free

4.00

3.78

3.70

Apparent Porosity (%)

1.3

1.5

2.0

@0.2MPa Refractoriness Under Load(℃)

1700

1700

1700

@ 1,000℃ Thermal Linear Expansion(%)

0.80

0.80

0.80

Main Applications

Glass furnace

Product Usage:

 

Various high temperature kiln

Rotary klin(cement kiln,lime kiln)

Non Ferrous metal furnace

Glass melting tank,electric arc furnace,chamber combustor

 

Product Advantages

Thermal Shock Resistance

AZS Blocks can maintaining structural stability under extreme thermal stress

Ultra-Low Porosity (<1%)

Superior to sintered alternatives (3-5% porosity)

 Corrosion Resistance

Withstands aggressive glass melts and chemical attacks

Thermal Stability

Maintains structural integrity up to 1750°C

Mechanical Strength

The blocks maintain their strength under heavy loads, ensuring reliability in demanding conditions

Chemical Stability:

The blocks resist reactions with various molten materials, including glass

 

Product technology:

 

The production of Fused Cast AZS Brick involves advanced technology and precision engineering:

azs brick production process

Key steps include:

The production of Fused Cast AZS Blocks brick is a meticulous process that ensures the material's high performance and durability. It involves several stages: technical study, composition, fusion, shaping, annealing, finishing, and pre-assembly. Initially, high-purity raw materials such as industrial alumina powder and zircon sand are selected and blended with precision. These materials are then melted in an electric arc furnace at temperatures ranging from 1800℃ to 1900℃. The molten material is cast into sand molds and allowed to cool slowly in a controlled environment to prevent defects like shrinkage and cracks. The final product is inspected, cleaned, and finished to meet the required specifications.

Why Choose Us?

 

1

23+

years experience focus on refractories field

2

2 plants

with 3 sets of tunnel kilns for 120,000 tonnes capacity

3

3 QC

Labs Technology Centres

4

120+ employees

with ISO9001,TUV,SGS,Intertek certifications

5

100+

abroad customers in 50+ countries

6

20+

major industry furnace projects yearly

 

Packing

Fused Cast AZS Blocks are securely packaged to ensure perfect condition during international shipping and handling:

Primary Protection:Each azs brick is individually wrapped in anti-abrasion PE foam sheeting Corner protectors applied to all edges for impact resistance

Palletization:Standard load: 1-1.5 metric tons per pallet (customizable) Bricks stacked on ISPM15-certified fumigated wooden pallets Optimal weight distribution for safe transport

Final Packaging:Heavy-duty PE shrink film (200μm) for complete moisture protection Reinforced with PP plastic strapping (minimum 4 belts per pallet)

azs brick packing

 

FAQ

 

Q: Why chooset Fused Cast AZS Block over traditional refractory materials?

A: Fused cast AZS blocks offers significantly higher density, lower porosity, and better corrosion resistance - resulting in longer service life and reduced maintenance costs.

Q: What's the typical service life in glass furnace applications?

A: Depending on operating conditions, our AZS bricks typically last 5-8 years in glass tank applications - 2-3 times longer than sintered alternatives.

Q: How does the 41% ZrO₂ grade compare to standard 33%?

A: The 41% grade provides superior corrosion resistance for aggressive glass compositions (especially high-alkali glasses) but comes at a higher cost. Our engineers can help select the optimal grade.

Q: Can you provide custom azs brick shapes and sizes?

A: Yes, we offer complete customization services including special shapes, sizes, and machining to exact specifications.

Q: Can I customize the size and shape of these bricks?

A: Yes, we offer customizable dimensions and shapes to meet specific application requirements.

Q: What quality certifications do you maintain?

A: Our production meets ISO 9001, ASTM C621, and EN 993 standards, with full traceability and test reports provided.

 

 

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