Description for AZS Brick
AZS Brick is a kind of fused cast zirconia-corundum refractory brick which is short writing of abbreviation that AZS from “A” of Al2O3, “Z” of ZrO2 and “S” of SiO2. Such as No. 33 fused cast zirconia-corundum refractory brick adopts the “AZS-33#” as its abbreviation, No. 36 fused cast zirconia-corundum refractory brick adopts the “AZS-36#” as its abbreviation and No. 41 fused cast zirconia-corundum refractory brick adopts the “AZS-41#” as its abbreviation.
Composition of AZS brick
AZS Brick is a kind of white solid body that made from alumina powder and about 65% ZrO2 and 34% SiO2 with zircon sand inside, and which is poured into mould after being melted in the electric melting furnace. AZS bricks’ petrographic structure is made of eutectoid and glass phase of corundum and zirconium clinopyroxene.
AZS bricks Supplier
Rongsheng Company is a professional manufacturer of Magnesia Carbon brick in China, with top quality and cheap price, we have gain good reputation worldwide and get good feedback.We focus On Manufacturing all Kinds of refractory bricks for furnace or Kiln application. RS Company Has Professional And Large Refractory Factory In China. If you need AZS brick, also named as zirconia-corundum refractory brick, please feel free to contact with us, we will provide you with the best service and products.
Characteristics of AZS Bricks
1.Strong glass corrosion resistance and high thermal shack stability.
2.Good wear-resistance,dregs-resistance and alkali corrosion resistance.
3.High-purity raw material, barely no pollution.
4.Top quality, long service time.
Application of AZS Bricks
The AZS bricks are mainly applied for the top and bottom structure of melting chamber.Such as melting tank,the tank wall brick, the paving brick,the forehearths and so on.The high corrosion part shall be AZS 41#, such as the feeding part, the throat,the bubble brick, the furnace weir, the burner block, the tongue brick the discharging part and so on.
Physical and Chemical Index of AZS Bricks
chemical composition | AZS-33 | AZS-36 | AZS-41 |
ZrO2 | ≥33 | ≥35 | ≥40 |
SiO2 | ≤16.0 | ≤14 | ≤13.0 |
Al2O3 | a little | a little | a little |
Na2O | ≤1.5 | ≤1.6 | ≤1.3 |
Fe2O3+TiO2 | ≤0.3 | ≤0.3 | ≤0.3 |
Physical Properties
bulk density(g/cm3): | 3.5-3.6 | 3.75 | 3.90 | |
cold crushing Mpa | 350 | 350 | 350 | |
thermal expansion coefficient (1000°C) | 0.80 | 0.80 | 0.80 | |
exudation temp. of glass phase | 1400 | 1400 | 1400 | |
corrocion resistance of glass melt(mm/24h) | 1.6 | 1.5 | 1.3 | |
Density | PT QX | 3.40 | 3.45 | 3.55 |
WS ZWS | 3.60 | 3.70 | 3.8 | |
phase composition(%)
baddeleyite | 32 | 35 | 40 |
glass phase | 21 | 18 | 17 |
α- corundum | 47 | 47 | 43 |
