Zirconium Sizing Nozzle Introduction:
The zirconium sizing nozzle is made of stabilized zirconia and imported natural oblique zircon after being stabilized by a special process, and then formed by high pressure molding and high temperature firing. The nozzle brand can be set according to the different steelmaking environment and use requirements of users. The sizing nozzle has the characteristics of high refractoriness, good thermal shock performance, corrosion resistance, erosion resistance, small diameter expansion, and long service life. The sizing nozzle is mainly used for continuous casting of tundish billets, blooms, rectangular billets, and small slabs.
The main function and characteristics of zirconium based sizing nozzles are high fire resistance, good thermal shock performance, corrosion resistance, erosion resistance, small expansion changes, and long service life.
Zirconium Sizing Nozzle Advantages:
Zirconium based fixed diameter nozzles have good erosion resistance, corrosion resistance, good thermal shock stability, no cracking during use, long service life, and a service time of over 20 hours. It has the advantages of low production cost and low price, and the continuous watering time is less than 500min. However, its disadvantage is that zirconium reacts with the steel liquid during use, causing inclusions in the steel liquid, causing zirconium to decompose during use. Zirconia is very small, and multi-component solutions are easily washed away by the steel liquid. Zirconium based sizing nozzles are mainly used for continuous casting of steel billets, which can control the flow of molten steel. The sizing nozzle has good thermal shock resistance and corrosion resistance, ensuring that the molten steel flows evenly and stably into the mold through the zirconium sized nozzle, ensuring the normal operation of the continuous casting process and improving production efficiency. The manufacturer of zirconium based fixed diameter nozzle pointed out that its main processing materials include corundum, zirconia, and graphite. It is mainly used for continuous casting of medium billets, square billets, large billets, and square billets to cast steel. It has good high-temperature wear resistance and can maintain small pore size expansion during the pouring process. The zirconium based sizing nozzle is made of stable zirconia and imported natural oblique zirconia, which is stabilized through special processes, high-pressure forming, and high-temperature firing. It can be set according to different steelmaking environments and requirements of users.
- Use temperature up to 2400℃
- High density
- Low thermal conductivity (20% than of alumina)
- Chemical inertness
- Resistance to molten metals
- Ionic electrical conduction
- Wear resistance
- High fracture toughness
- High hardness
