In steelmaking, the tundish plays a critical role by receiving, distributing, and purifying molten steel. Given that the tundish must withstand high temperatures and resist the erosion of molten steel and slag, selecting suitable refractory materials is essential to ensure tundish stability and enhance the quality of molten steel. Zhong Tang Materials (ZTM) provides a range of tundish refractory solutions designed to meet these challenges, extending tundish lifespan and ensuring the purity of the molten steel.
Common Refractory Materials for Tundish
Selecting refractory materials for the tundish requires careful consideration of factors such as high-temperature stability, erosion resistance, thermal shock resistance, and the ability to purify molten steel. ZTM offers a wide range of products, covering everything from working linings to key parts with resistance to erosion and thermal shock, ensuring optimal performance in every process stage.
- Stopper: The stopper is used to control molten steel flow, particularly during casting, by adjusting the gap between the stopper head and the nozzle to precisely control flow rate and reduce casting defects. ZTM’s stopper offers excellent high-temperature resistance, slag resistance, and thermal shock stability, allowing it to maintain a stable operating state even under high temperatures and constant molten steel flow.
- Tundish Nozzles and Submerged Entry Nozzles (SEN): These nozzles are critical channels for molten steel to enter the crystallizer and must resist the erosion from molten steel flow, temperature fluctuations, and slag. ZTM’s tundish nozzles and SENs are made from high-quality materials like magnesia-carbon and alumina-carbon, offering outstanding slag resistance and high-temperature performance to ensure smooth and accurate steel flow under harsh conditions.
- Metering Nozzle: In the steelmaking process, the metering nozzle is crucial in controlling the flow speed and volume of molten steel, ensuring stable solidification of billets in the crystallizer. ZTM’s metering nozzles use high-alumina and zirconia materials, with excellent high-temperature resistance and thermal shock stability, capable of withstanding prolonged exposure to molten steel and slag, ensuring steady molten steel flow.
- Working Lining Castable (Coating and Dry Mass): Primarily used for the working lining of the tundish, castable refractory materials withstand the impact of molten steel flow and slag erosion, maintaining structural stability. ZTM’s castables provide excellent slag resistance and high-temperature performance, are easy to install and remove, and help maintain continuous operation, effectively purifying molten steel.
- Slag Wall and Impact Pot: Slag walls and impact pot are used to prevent inclusions from entering downstream processes and ensure stable steel flow. ZTM’s slag walls and impact pot, made from high-quality alumina materials, offer excellent resistance to molten steel erosion, effectively protecting the tundish and enhancing steel purity.
Advantages of ZTM's Products
- High-Temperature Stability and Erosion Resistance: ZTM’s tundish refractory materials effectively resist erosion from molten steel and slag, ensuring long-term, efficient operation.
- Thermal Shock Resistance: Carefully selected materials maintain stability under high temperatures and thermal fluctuations, reducing lining wear.
- Molten Steel Purification: Certain materials can absorb impurities and inclusions from the molten steel, improving its purity and enhancing steel quality.
- Ease of Installation and Efficiency: ZTM’s dry materials and precast components are easy to install and help reduce downtime, increasing production efficiency.
Why Choose ZTM?
With over 15 years of experience in the refractory materials industry, Zhong Tang Materials (ZTM) understands the unique needs of different clients and can tailor solutions for each customer. We are committed to high-quality production standards, advanced manufacturing processes, and stringent quality control to ensure product reliability. Choosing ZTM means receiving high-performance refractory materials along with comprehensive technical support and after-sales service. Whether for daily maintenance of the tundish or operation in high-temperature, harsh smelting environments, ZTM offers the most valuable refractory solutions for your needs.
For any questions about tundish refractory solutions, please feel free to contact us. We are dedicated to providing expert advice and service.
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