At present, many continuous casting machines have adopted a basic technology which is widely used in modern continuous casting technology -- argon blowing protection casting.

Argon blowing protection generally includes two aspects: one is to seal the connection between the large ladle and the long nozzle and between the tundish immersion nozzle and the tundish to prevent air inhalation; the other is to blow argon before the injection of the tundish to prevent the molten steel from exposed in the air and causing the secondary oxidation of the molten steel.

Continuous casting production

In addition to sealing, argon has another important role in the pouring process -- preventing nodule formation. In some related articles, we can also read about blowing argon prevent nodular roughly content, if the argon sealing is hard, has a little influence on the casting operation itself is a process, so to prevent nodular blowing argon is elastic, but due to various reasons, it is only a few in common technical standards to reference, the specific use of flow, pressure and the ratio of each point of need operator to adjust according to the concrete situation, so how to use, control of argon gas to achieve the following three

(1) to ensure the safety of pouring

(2) the realization of multi-furnace pouring

(3) control the liquid level and improve the quality of casting billet.

This is still a problem worth exploring and researching.

The application of argon gas in continuous casting production is very important, just like the argon blowing process for steelmaking introduced above, which plays a very important role in steel production.