Magnesite Refractory AZS41 Brick

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Product Description:

Fused Casting Zirconia Corundum (AZS) bricks for glass furnace

Fused Casting Zirconia Corundum (AZS) bricks for glass furnace

1.Definition:

It is mainly made of the baddeleyite and corundum material.

2.Raw material: corundum and baddeleyite eutecticum
3.Product technology:Casting technology.
4.Production process:

Made of the zirconite (Industry zirconia ) and industry alumina as the mainly mixed raw material, melting in the electric furnace, casting, annealing, machining, then finished.

5.Highlight:1). Fine thermal conductivity in the normal temperature.

2).Compact structure

3).Strong resistant erosion stability to the glass liquid.

4).Not color to the glass.

6.Properties:

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

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