Zirconia Sizing Nozzle And Tundish Upper Nozzle


Zirconia sizing nozzle can be divided into two types,the composite monolithic nozzleand the insert nozzle.Imported zircon sand and stabilized zirconia are used for themono-nozzle.For the insert nozzle,stabilized zirconia is adopted for the core and highgrade bauxite is the starting material for the sleeve.Both nozzles have good thermalshock stability,strong resistance to erosion and spalling.

Classification:


Zirconia sizing nozzle can be divided into two types,the composite monolithic nozzleand the insert nozzle.Imported zircon sand and stabilized zirconia are used for themono-nozzle.For the insert nozzle,stabilized zirconia is adopted for the core and highgrade bauxite is the starting material for the sleeve.Both nozzles have good thermalshock stability,strong resistance to erosion and spalling.

Main chemical compositions and physical properties of insert sizing nozzle

Grade JH-DSN-90 JH-DSN-95 JH-DSN
Chemical
composition(%),≥
Al₂O₃ - - 70~80
ZrO₂ 90  95  -
AP(%),≤ 18  20  20 
BD  (g/cm³),≥ 4.6  4.6  2.6 
Area core core sleeve

 

Main chemical compositions and physical properties of monolithic sizing nozzle

Grade JH-DSN-F65 JH-DSN-Z80
Chemical composition
(%),≥
Al₂O₃ 65  -
 ZrO₂ - 80 
AP(%),≤ 20  18 
BD(g/cm³),≥ 2.5  3.9 
Area body sizing zone

 

Main chemical compositions and physical properties of tundish upper nozzle

Grade JH-TQN50 JH-TQN85 JH-TQN60
Chemical composition
(%),≥
  Al₂O₃ 52  85  62 
ZrO₂ - -
AP(%),≤ 16  18  18 
BD(g/cm³),≥ 2.4  2.8  2.4 
Area body bowl-like zone inner layer

Packaging:wooden case or pallet.                                    


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