High temperature resistance is very strong, but also improve the reuse rate of the nozzle

In the continuous casting process of molten steel, some containers are used. This is what we often call the tundish nozzle. In general continuous casting, the hot metal will flow into the nozzle through the tundish, so the nozzle needs to be corroded by the molten iron, and it also needs to have certain high temperature resistance. The zirconia nozzle is a nozzle made of zirconia. The nozzle of this material has high temperature resistance, and it also improves the reuse rate of the nozzle.

The zirconia nozzle is one of the tundish refractory materials in the continuous casting process. It is mainly used for billet continuous casting and can control the flow of molten steel. The sizing nozzle must have good thermal shock resistance and erosion resistance to ensure that the molten steel can flow into the crystallizer uniformly and steadily through the sizing nozzle without erosion, thereby ensuring the normal progress of the continuous casting process and increasing the production efficiency. .

The zirconia nozzle is made of highly corrosion-resistant refractory material, and the diameter of the nozzle remains basically unchanged throughout the continuous steel casting process. It is used for the plugless casting system of small billet continuous casting intermediate tank, which can ensure a stable pulling speed during the continuous casting process. Usually made of zirconium (ZrO2 is 60% to 95%) material. The zirconia nozzle is made of stable zirconia after being stabilized by a special process, and is formed by high-pressure molding and high-temperature firing. It can be customized according to different steelmaking environment and usage requirements of users. Zirconium oxide nozzle characteristics: The sizing nozzle has the characteristics of high refractoriness, good thermal shock performance, corrosion resistance, erosion resistance, small diameter expansion change and long service life.

 There are many types of nozzles used in the continuous casting process of hot metal. Common ones include zirconia nozzles and quick-change sizing nozzles. No matter what type of nozzle is, it should have good resistance to high temperature and hot metal erosion. Therefore, when purchasing the nozzle, there are very strict requirements for the material of the nozzle.