Explanation

The process technology of off furnace refining in tundish is an important guarantee for achieving high efficiency continuous casting. The residence time of liquid steel can be prolonged and the removal rate of inclusions can be improved mainly through the shape design of tundish and increasing its volume; Through the installation of slag retaining wall dam, the flow of steel liquid is controlled to promote the collision, growth and floating of inclusions. In recent years, through advanced tundish design such as tundish heating, thermal cycle operation, inert gas injection, active calcium inner wall, wire feeding in tundish, relevant refining processes have been carried out to achieve metallurgical functions such as cleaning molten steel, adjusting molten steel temperature, and fine-tuning composition.

Classification