Tundish Nozzles for High Performance Steel Casting
Tundish nozzles are an essential component in high-performance steel casting, as they control the flow of molten steel from the tundish into the mold. The quality of the nozzle and its design can h...
DESCRIPTION
Tundish nozzles are an essential component in high-performance steel casting, as they control the flow of molten steel from the tundish into the mold. The quality of the nozzle and its design can have a significant impact on the quality of the final product and the overall efficiency of the casting process.
To achieve high-performance steel casting, tundish nozzles should be designed to ensure a smooth and uniform flow of molten steel into the mold. Any turbulence or interruptions in the flow can cause defects in the final product, leading to increased scrap rates and lower productivity. A well-designed nozzle should promote a consistent flow of steel, minimizing turbulence and ensuring a uniform distribution of the molten metal.
Another important factor to consider is the material used to construct the nozzle. The tundish nozzle is exposed to extremely high temperatures, abrasive materials, and corrosive elements, which can lead to wear and tear. Choosing a material that can withstand these conditions and designing the nozzle to resist erosion and corrosion can extend its lifespan and minimize maintenance requirements.
Customization options for tundish nozzles can further optimize the casting process. For example, adjusting the size and shape of the nozzle orifice can help control the flow of molten steel into the mold, ensuring a consistent and uniform flow. Additionally, the nozzle’s angle can be customized to optimize the flow pattern for a particular casting process.
The use of advanced technologies in tundish nozzle design can also improve the casting process’s efficiency and quality. For example, computer-controlled flow rates and sensors can help optimize the flow of molten steel, reducing turbulence and improving product quality. Other advanced features, such as automated cleaning and maintenance systems, can minimize downtime and increase production efficiency.
| Items | Upper Nozzle | Lower Nozzle | ||
| Zirconia core | Outside | Zirconia core | Outside | |
| ZrO2+HfO2(%) | ≥95 | ≥95 | ||
| Al2O3(%) | ≥85 | ≥85 | ||
| MgO(%) | ||||
| C(%) | ≥3 | ≥3 | ||
| Buik Density g/cm³ | ≥5.2 | ≥2.6 | ≥5.1 | ≥2.6 |
| Apparent porosity % | ≤10 | ≤20 | ≤13 | ≤20 |
| Crushing strength Mpa | ≥100 | ≥45 | ≥100 | ≥45 |
| Thermal shock resistance | ≥5 | ≥5 | ≥5 | ≥5 |
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