Zirconia sizing nozzle
Product overview: The zirconium upper nozzle is made of stable zirconia and imported natural baddeleyite zircon after being stabilized by a special process. The specific parameters and dimensions can be processed according to the user's different steelmaking environment and usage requirements.
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Product Details
Product overview: The zirconium upper nozzle is made of stable zirconia and imported natural baddeleyite zircon after being stabilized by a special process. The specific parameters and dimensions can be processed according to the user's different steelmaking environment and usage requirements.
Product features: The zirconium top nozzle has the characteristics of high strength, good thermal vibration performance, corrosion resistance, erosion resistance, low expansion rate, and long service life.
Product application: Sizing nozzle refers to a functional device made of high-temperature structural ceramics installed at the bottom of the continuous casting tundish. Its main function is that the static pressure of the molten steel in the tundish remains basically unchanged, the molten steel flows into the mold through the sizing nozzle, and the mold is cooled by a large flow of water to take away the heat released during the solidification of the molten steel, so that the molten steel solidifies into a billet. Since the heat taken away by the water cooling of the mold is limited, the quantity of molten steel flowing into the mold per unit time must be within a certain range. The larger the aperture of the sizing nozzle, the more molten steel flows into the mold per unit time. Select the appropriate aperture to make the tundish nozzle, which is the sizing nozzle.
| Technical indicators | FM01 | FM02 |
| Zr02+HfO2(%) | ≥95 | ≥95 |
| A12O3(%) | ≤0.2 | ≤0.2 |
| SiO2(%) | ≤0.4 | ≤0.4 |
| MgO(%) | ≤2.9 | ≤2.9 |
| Fe2O3(%) | ≤0.1 | ≤0.1 |
| TiO2(%) | ≤0.1 | ≤0.1 |
| body density(g/cm³) | 5.4 | 5.2 |
| stomata(%) | ≤8 | ≤15 |
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