Fused Zircon Refractory Corundum Brick AZS-33 Of Industrial Kiln High Temperature

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Fused Zircon Refractory Corundum Brick AZS-33 Of Industrial Kiln , High Temperature

 

 

Quick Detail:

 

♦ 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