tundish metering nozzle of high quality is a kind of continuous casting refractory material for steelmaking, which is suitable for continuous casting in steelmaking.
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As a key functional refractory material for billet continuous casting, sizing nozzle plays a role in controlling the flow of molten steel and determining the drawing speed of billet in continuous casting, which is a necessary condition to ensure the normal operation of continuous casting, and is called continuous casting functional refractory material. In addition to not being able to crack, block and fall off, the sizing nozzle is also required to expand the diameter at a speed that is not too fast to meet the requirements of long-term casting.
In order to achieve cost savings, the ideal use state of three types of tundish refractory materials with different functions is to achieve synchronous failure, however, with the tundish fourth generation dry vibration material/paint work liner application, its service life has been greatly improved, up to more than 60 hours, compared with the sizing nozzle life has not been matched. At present, it is the bottleneck that restricts the whole life improvement of continuous casting tundish.
The sizing nozzle of tundish has the characteristics of long service life, corrosion resistance and good thermal shock resistance. Products can be designed according to customers' use environment, dimensions and other requirements.
The production process of sizing nozzle plays a crucial role in its performance, and the process parameters such as the particle composition of raw materials, mixing time, molding pressure, drying method and firing system will affect the performance of nozzle. The service life of sizing nozzle can be improved by controlling the production process factors such as granulation, molding and sintering.
The sizing nozzle of tundish has the characteristics of long service life, corrosion resistance and good thermal shock resistance. Products can be designed according to customers' use environment, dimensions and other requirements.
