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Compact Fused Zircon Corundum Brick Refractory Firebrick

  

Type:HY
Supply Ability:150T/D
Delivery:15-30days
Application:cement, electric power, metallurgy, chemical industry and other industry

 

 

description

♦ Compact microstructure
♦ Good erosion resistibility to molten glass
♦ Good thermal shock resistibility
♦ Barely rendering blister

Applications:

Mainly used for side walls of flame furnaces with embedded melter bottoms, for total security with average pulls and campaign lengths, and superstructures, front wall, back wall, top crown in glass melting furnace.

Specifications:

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

detail

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