The "transfer station" in steel smelting - the secret of the tundish

Today we are going to discuss an important link in the steelmaking process - the tundish. The tundish is an important component connecting the ladle and the continuous casting machine, and it plays the role of a "transfer station" in the entire steelmaking process. So, how does this "transit station" work?

Common refractory materials for tundish

The tundish has to withstand extremely high temperatures and erosion from molten steel during the steelmaking process, so it is very important to choose the right refractory material.

1. High alumina refractory

High alumina refractory materials are made of high alumina as the main raw material and are fired at high temperatures. It has high refractoriness and good corrosion resistance, and can maintain stable performance in high temperature environments. It is one of the commonly used refractory materials for tundishes.

2. Magnesium refractory

Magnesia refractory materials, with magnesium oxide as the main component, have excellent slag resistance and high temperature stability. During the steelmaking process, it can effectively resist the erosion of slag and ensure the integrity and stability of the lining of the tundish.

3. Unshaped refractory materials

Unshaped refractory materials such as refractory c

The refractory material for tundish plays an important role in the tundish. They not only withstand high temperatures and corrosion, but also ensure the quality of molten steel and the stability of the continuous casting process.

1. Constitute the inner lining and protect the tundish

Refractory materials, as the lining of the tundish, can directly withstand the high temperature erosion of molten steel. They effectively isolate the molten steel from the tundish body by forming a protective oxide layer, ensuring the long-term stable operation of the tundish.

2. Stabilize the temperature of molten steel

The thermal conductivity of refractory materials plays a key role in stabilizing the temperature of molten steel. By rationally selecting and designing the structure of refractory materials, precise control of molten steel temperature can be achieved, ensuring the temperature stability of molten steel during continuous casting.

3. Purify molten steel and improve quality

Some refractory materials also have the function of purifying molten steel. They can absorb and remove impurities and inclusions in molten steel, improving the purity and quality of the molten steel.

astables and refractory plastics have the characteristics of convenient construction and strong adaptability. They can be customized according to the shape and size of the tundish, providing fast and effective protection for the tundish.

Characteristics of Tundish Material

The selection of tundish materials needs to consider many factors, including high temperature stability, corrosion resistance, thermal shock stability, etc.

1. High temperature stability

The tundish material needs to be able to maintain stable performance at extremely high temperatures without melting or deforming. Only in this way can the normal operation of the tundish in a high temperature environment be ensured.

2. Corrosion resistance

During the steelmaking process, the chemical components in molten steel and slag will corrode refractory materials. Therefore, the tundish material needs to have good corrosion resistance to resist this corrosion.

3. Thermal shock stability

During the continuous casting process, the temperature of the molten steel in the tundish fluctuates frequently. This requires that the tundish material has excellent thermal shock resistance and can maintain structural integrity and stability under rapid temperature changes.

Application of refractory materials for tundish in tundish

As a key component in steelmaking, the selection and application of refractory materials for the tundish are of great significance to ensuring the stability of the steelmaking process and improving the quality of molten steel. By understanding the commonly used refractory materials for the tundish and their characteristics and applications, we can have a deeper understanding of the working principle of this "transfer station". With the advancement of science and technology and the development of industry, I believe that more innovative refractory materials will appear in the future, injecting new vitality into the development of the steel industry.