Product Description of Zirconia Core of Sizing Nozzle
The Zirconia nozzles are essential tundish refractory components in the continuous casting process, primarily used in billet casting to regulate the flow of molten steel. These nozzles must exhibit outstanding thermal shock resistance and erosion resistance to ensure a stable and uniform flow of molten steel into the mold. This stability is critical for maintaining the efficiency and consistency of the continuous casting process. Our zirconium sizing nozzle is made of stable zirconia and rare earth oxides, high pressure forming, high temperature solid phase. Specific parameters and dimensions can be customized according to different working environments and usage requirements of users.
We offer a complete range of zirconia metering nozzles for tundish applications in steel continuous casting. These nozzles can be manufactured as a solid unit or combined with an outer high-alumina body. With superior thermal stability, excellent anti-erosion properties, and high wear resistance, our nozzles are well-suited for various small billet casting requirements.
- Metering Nozzle Inserts
- Exchangeable (Lower/Outer) Nozzle
- Stationary (Upper/Inner) Nozzle
Zirconia Nozzle for Continuous Casting Suppliers
- Raw material selection: The first step is to select the raw materials for the zirconia nozzle. The type of raw materials will depend on the desired properties of the nozzle. For example, zirconia, alumina, and magnesia are often used for zirconia nozzles because they are refractory materials with high melting points, good thermal conductivity, and resistance to thermal shock.
- Mixing: The raw materials are then mixed together in a pug mill. The pug mill is a machine that mixes the materials together and kneads them until they are evenly distributed.
- Forming: The mixed materials are then formed into the desired shape. This can be done by hand, by using a machine, or by a combination of both.
- Sintering: The formed nozzle is then sintered. Sintering is a process that heats the nozzle to a high temperature without melting it. This process causes the particles of the nozzle to fuse together, creating a strong and durable material.
- Cooling: The sintered nozzle is then cooled. This process allows the nozzle to reach its final properties.
- Inspection: The final step is to inspect the nozzle to ensure that it meets the desired quality standards.
Product Features of Zirconia Core of Sizing Nozzle
The inner core of the zirconium sizing nozzle has the characteristics of high strength, goodthermal vibration performance,corrosion resistance,erosion resistance,low expansion rate and long service life.
Product Advantages of Zirconium Sizing Nozzle
- 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
Product Application:
- Steel casting
- Aluminum casting
- Copper casting
- Other metals
The sizing nozzle is a functional device made of high-temperature structural eramics installed at the bottom of the continuous casting tundish.Its main function is to keep the static pressure of molten steel in the tundish 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 awaythe heat released during the crystallization process.The molten steel is solidified,and the molten steel is solidified into a billet.Due to the limited heat taken away by the water cooling of the mold,the amount of molten steel flowing into the mold per unit time must be within a certain range.The larger the diameter of the sizing nozzle is,the more molten steel flows into the mold per unit time.Select the appropriate aperture to make the tundish nozzle, that is, the sizing nozzle; it can also be used as the flow control function of other metal solutions.
