Continuous Casting Zirconia Nozzle
Changtai supplies stabilized zirconia metering nozzles for tundish continuous casting. Resist erosion and thermal shock, control bore size. YSZ and MSZ material options, custom sizes for billet, bloom and round steel casting.
Products Description
Changtai Continuous Casting Zirconia Nozzle, also called tundish metering nozzle or sizing nozzle, is one refractory part for steel continuous casting. It mounts at the bottom of tundish to control molten steel flow and keep steady casting speed. Its condition directly affects billet quality and continuous casting time.
We supply two types: solid zirconia nozzles and composite nozzles. Composite nozzle uses zirconia insert for flow channel, with alumina-carbon or high alumina sleeve outside for mechanical protection. Zirconia core is made from high purity ZrO₂ with magnesia or yttria as stabilizer. Raw material goes through isostatic pressing and high temperature sintering, with tight structure and low porosity.
Material Grade Options
MgO stabilized zirconia (MSZ)
Used for common carbon steel and alloy steel billet casting, lower cost
Y₂O₃ stabilized zirconia (YSZ)
Higher density, better scour resistance, for clean steel, calcium-treated steel and high speed casting
Composite zirconia insert nozzle
Al-C sleeve outside, balance performance and cost. Most selected by overseas steel plants
Technical Parameters (Reference)
| Item | Specification |
|---|---|
| ZrO₂ Content | ≥90% / ≥93% / ≥95% |
| Stabilizer | MgO / Y₂O₃ |
| Apparent Porosity | ≤12% |
| Bulk Density | ≥5.2 g/cm³ |
| Working Temperature | 1580 ~ 1750 ℃ |
| Custom Items | Inner bore, outer size, length, composite structure |
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Send your drawing, bore size or site working condition to Changtai. We sort out technical suggestion and quotation for continuous casting zirconia nozzles.
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