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Fused AZS Zirconia Corundum Bricks

Fused AZS zirconia corundum bricks are made with raw materials including high pure alumina powder, zircon sand, and desiliconized zirconium, after fusing processing, and chemical reaction, and are composed of three main chemical components of Al2O3, ZrO2, and SiO2.

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Introduction of Fused AZS Zirconia Corundum Bricks

The main ramp from zircon and corundum of casting refractories. ZrO2-Al2O3-SiO2 ternary system is molded into customized blocks (AZS representing Al2O3, ZrO2 and SiO2), containing Al2O3 40% ~ 50%, ZrO2 30% ~ 50%, SiO2 10% to 17%.

The dense microstructure of AZS zirconium corundum bricks makes the bricks have good resistance ability to high-temperature glass liquid erosion. It can withstand high pressure and high temperature by scientifically graduating and adding aggressive conditions in contact with molten glass.

Properties of Fused AZS Zirconia Corundum Bricks

Dense microstructure

Strong resistance to high temperature and glass liquid

Good thermal shock resistance

High pressure resistance

Wear resistance and slag erosion resistance

Specification

Characteristics of Fused AZS Zirconia Corundum Bricks

High strength microstructure

Good erosion resistibility to molten glass.

Good thermal shock resistance.

High pressure resistance.

Wear resistance and slag erosion resistance.

Applications of Fused AZS Zirconia Corundum Bricks

AZS Bricks are mainly used in the linings of decomposing furnaces for the petroleum and chemical industries, as well as the chemical fertilizer industry. They are also used as high-temperature kiln linings and high furnaces in the metallurgical industry.

Packing for Fused AZS Zirconia Corundum Bricks

1. Pallet+Paper or Steel angle bead+Paper board +Plastic

Wooden pallet size: Usually0.92*0.92m(standard brick) or 1.0*1.0m (special shape brick).

The gross weight of each pallet: Usually 1.5-1.7 tons, max 2.0 tons.

20 Foot containers can be loaded max 25-26 tons, about 13-16 pallets.

2. Package of AZS bricks according to customer's requirements.

Physical Parameters

Items		AZS #41	AZS #36	AZS #33
Chemical Composition	Al₂O₃, min	45.50%	48.50%	49.50%
	ZrO₂, min	41%	36%	33%
	SiO₂, max	12%	14%	15.50%
	Fe₂O₃, max	0.10%	0.10%	0.10%
	TiO₂, max	0.05%	0.05%	0.05%
	Na₂O, max	1.20%	1.30%	1.40%
Bulk Density, g/cm3, min		3.8	3.7	3.6
Apparent Porosity, max		1.00%	1.00%	1.00%
True Density, g/cm3, min		4	3.95	3.85
Cold Crushing Strength, Mpa, min		350	350	350
Softening Temperature Under Load (0.2 Mpa), ℃, min		1700	1700	1700
Bubbling Tendency, max		0.50%	0.50%	0.50%
Exudation Temperature of Glass Phase, ℃, min		1400	1400	1400
Corrosion Resistance to Glass Melt (mm/24hrs), max		1	1.2	1.3
Thermal Expansion, 1000℃, max		0.80%	0.80%	0.80%
Baddeleyite Crystalline Phase, min		12%	11%	10%
Corundum–Baddeleyite Eutectic Crystalline Phase, min		70%	70%	70%
Glass Phase, max		18%	18%	18%