PRODUCTS

Refractory Materials for Glass

Oxidized Fused-Cast α-β Al2O3 Brick & β- Al2O3 Brick
 
Typical Properties
 
Properties
α-βAl2O3
β-Al2O3
Al2O3, Min. (%)
94.0
92.8
SiO2, Max. (%)
1.5
0.3
K2O+Na2O, Max. (%)
3.7
5.5
Others, Max. (%)
0.5
1
Bulk density, Min. (g/cm3)
3.30
3.05
Cold crushing strength, Min. (MPa)
1700
1700
α- Al2O3 (%)
35 - 45
1 - 2
β- Al2O3 (%)
45 - 58
98 Min.
Glass phase, Max. (%)
2
0.5-1.0
 
 
 
Applications
 
Ideal indispensable mating refractory for the cooling part, the bottom tank in the glass furnace as well as the flowing way and flowing bath of float glass furnace.   
 
 
 
Oxidized Fused-Cast Zr-Corundum Brick, No. NAZS-41 Typical Properties
 
Properties
Parameters
Al2O3, Min. (%)
balance
SiO2, Max. (%)
13.0
ZrO2, Min. (%)
40.0
K2O+Na2O, Max. (%)
1.2
Others, Max. (%)
0.3
Bulk density, Min. (g/cm3)
4.0
Cold crushing strength, Min. (MPa)
400
Refractoriness under load, Min. (°C)
1700
Exuding temperature of glass phase, Min. (°C)
1400
Eutectic (%)
55 - 57
Zircon (%)
15 - 20
Glass phase, Max. (%)
17
 
 

Applications

Ideal refractory material for the key parts of high-temperature zone, in the melting part of the fused-cast furnace. It is used for making large-sized float glass and instrument glass such as sidewall, dog-house, corner and throat, etc.

 

Oxidized Fused-Cast Zr-Corundum Brick, No. NAZS-33 Typical Properties 

Properties
Parameters
Al2O3, Min. (%)
balance
SiO2, Max. (%)
16.0
ZrO2, Min. (%)
32.5
K2O+Na2O, Max. (%)
1.4
Others, Max. (%)
0.5
Bulk density, Min. (g/cm3)
3.7
Refractoriness under load, Min. (°C)
1700
Exuding temperature of glass phase, Min. (°C)
1400
Zircon, Min. (%)
32
Corundum, Min. (%)
48
Glass phase, Max. (%)
20
 
 
 
Applications

Necessary refractory for sidewall, jamb wall, small furnace, paving of tank bottom and other important parts in the melting part of fused-cast furnaces for making teletube glass, float glass, instrument glass and daily household utensils.

 
 
 

 

 
 

 

 
 

 

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