Double Gob Orifice Rings For 10” Spout - Saint-Gobain

SINTERED MATERIALS ZIRCON
CHEMICAL ANALYSIS
SiO 2
33%
ZrO 2
64%
CRYSTALLOGRAPHIC ANALYSIS
Principal phase .........................................................................................Zircon
Secondary phases ..................................................................Monoclinic zirconia
and silicate phase
PHYSICAL CHARACTERISTICS
International System British Standard Units
Bulk density .........................3.8 Tm -3
..........................................237 pcf
Open porosity ........................16.5% ...........................................16.5%
Cold crushing strength ..........90 Mpa
Refractoriness
.......................................13050 psi
under load 2 105 Pa, 0.5% at ..1520°C
Coefficient of
under load 29 psi, 0.5% at ....2770°F
thermal expansion .............510-6 °C-1 .....................................2.7 10-6 °F-1 Thermal conductivity
at 1000°C ......................2.2 Wm -1 °C -1 at 1830°F ....... 15.25 BTU in hr -1 ft -2 °F -1
Thermal shock resistance ......medium ........................................medium
TYPICAL APPLICATIONS
CZ 4
CZ 4 is a fine grain zircon based refractory.
It is used mainly as orifice rings for production of borosilicate and other special glasses.
14
TiO 2
0.6%
Other
2.4%
The data quoted above provides average values for current production and is not contractual.
If further information is required, please contact the Saint-Gobain SEFPRO Marketing Department.
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