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Refractory Products

Zirconic Metering Nozzles

 

Zirconic metering nozzle developed and produced by orientmineral is of good corrosion and thermal shock resistance, long service life as well as low diameter enlarging rate. Excellent application results have been achieved in many domestic I&S words.

online see tundish nozzle

 
Item
Nozzle cores
Nozzle body
OR-1
OR-2
OR-3
OR-4
Zr(Hf)O2, % ¡Ý
75
93
93
94
-
Al2O3, % ¡Ý
-
-
-
-
75
Bulk density, g/cm3,  ¡Ý
3.9
4.3
4.5
4.7
2.2
Apparent porosity, %, ¡Ü
22
24
22
20
25
Cold crushing strength, MPa, ¡Ý

15
60
60
80
-
Service life, hrs, >
6
8
10
12
-
Speed of diameter enlarging , mm/hrs, <
0.2
0.1
0.1
0.1
-
Thermal shock resistance, cycle,    >
(water quenching at 1200 ¡ãC)
5
5
5
5
5
Application

Used for small square billet con-casting and steel flow rate controlling

 

 

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