CNC Quick Change Tundish Nozzle:

The exchangeable metering system consists of an upper and lower nozzle on each tundish strand. The upper nozzle is located within the tundish lining and conveys the steel to the controlling lower (exchangeable) nozzle, which determines the steel flow. This type of composite nozzle encases the zirconia insert within a thin metal can. The outer body between the zirconia insert and metal can generally is a fine-grained alumina mainly produced by the casting process.

Characteristics: Exchangeable metering nozzle provides:

  1. Flexibility to reduce the casting speed by closing the strand to reduce metal flow or change the bore diameter of the nozzle
  2. Longer casting sequence
  3. Better casting operator safety

Application: CNC type of nozzle is a recent development in the continuous casting of steel. The nozzle is hydraulically actuated, and the nozzle is exchanged with no deviation or disturbance to the steel flow

Main properties of zirconia insert:
Product Code ZRPL –N-5 ZRPL-N-5.3
General Properties :-
Apparent Porosity 10-12 % 4 – 6 %
Bulk Density (g/cc) 5 - 5.1 5.3 – 5.4
Chemical Analysis (%):-
SiO2 <0.4 <0.4
TiO2 <0.25 <0.25
Fe2O3 <0.06 <0.06
Al2O3 <0.25 <0.25
MgO 2.5-3 2.5-3
ZrO2+HfO2 >95.5 >95.5
Main properties of outer body (Castable )
Product Code ZRPL-C
General Properties:-
Bulk Density (g/cc) ≥ 3
Apparent Porosity <20
Surface Flatness (μm) ≤ 40
Chemical Analysis (%):-
Al2O3 >95

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Email

zirconiarefractories@gmail.com
sales@zirconiarefratech.com

Phone

+91 - 8591675901

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Thane - 421204.India.