What Are the Advantages of Zirconia Nozzles?

Zirconia nozzles feature high zirconia content and dense zirconia ceramic cores, providing exceptional resistance to erosion and corrosion.

When selecting refractory materials for nozzles, technical requirements must be balanced with cost and supply considerations. Many refractories, though high-performing, are prohibitively expensive, limiting their application. Selecting suitable refractories can mitigate damage from high-temperature flames and slag. Additionally, operators must perform regular maintenance, inspections, and timely replacements.

Zirconia nozzles not only exhibit excellent high-temperature resistance but also demonstrate corrosion resistance when exposed to molten iron. Since casting is a complex operation, improper handling or nozzle quality issues can easily cause nozzle blockages. Therefore, rigorous quality inspection of nozzles is essential, alongside adherence to correct operating procedures to minimize accidents.

Due to their low erosion rate, zirconia nozzles introduce minimal impurities into molten steel, thereby reducing inclusions in steel billets and enhancing the mechanical properties and surface quality of the final steel product.