Zircomia corundum brick 33#
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The cast method and application of AZS series products
After complete melt , cast in the mould with materials, produced by cooling and curdle. Especially notice is in the condensation course, due to volume constricition become cavities . The AZS's cast method is Regular Cast, Tilt Cast, Void Free Cast and End Cut. Different cast method of AZS product are suitable for diffferent glass kiln part's requirement.
Code Name Characteristic and Use
PT Regular Cast It is the accustomed cast method and cavities are located under the mouth of casting. It is used for top of thawy pool, etc. corrasive non-severity part.
QX Tilt Cast Using tilt cast method and the cavities of goods are located under the good's part. being used for sidewall.
WS Void Free Cast It is resect cavities part of molten brick and the main using is hole of stream liquid kiln and sidewalls corner, etc corrasive severity part.
ZWS End Cut It is similarly void free cast and basically resect cavities part. Being used for sidewalls brick.
Typical physical and chemical property of AZS series
Chemical composition (%) AZS-33 AZS-36 AZS-41
ZrO2 32 35 40
SiO2 14.5 14 12.5
Al2O3 Remains Remains Remains
Na2O 1.4 1.6 1.2
Fe2O3 0.15 0.15 0.15
TiO2 0.10 0.10 0.10
True proportion(g/cm3) 3.84 3.95 4.10
Cold crushing strength (Mpa) 350 350 350
Thermal expansion rate
(%) 10000C 0.80 0.80 0.80
15000C 0.80 0.80 0.80
Exudation temp. of glass phase (0C) 1450 1500 1500
Corrosion Resistance to glass melt (mm/24hr) 1.3 1.2 1.0
Bulk density(g/cm3) PT QX 3.50 3.52 3.70
WS ZWS 3.70 3.80 3.95
Crystalline phase composition (%)
Baddeleyite 32 35 40
Glass phase 21 18 17
ɑ -Corundum 47 47 43