Tundish Metering Nozzle

Tundish Metering Nozzle is usually made of refractory materials, such as high alumina bricks, carbonaceous materials, or ceramic fibers. It consists of several parts, including an inner lining, a housing and some auxiliary components. The lining is the part in direct contact with the molten steel, which needs to have good fire resistance and corrosion resistance. The outer shell is used to protect the inner lining and is usually made of steel or cast iron. Auxiliary components include connectors, cooling devices and regulating devices, etc.

The main function of tundish metering nozzle is to control the flow of molten steel and pouring process to ensure the smooth operation of continuous casting. It can control the flow rate and speed of molten steel by adjusting the opening and closing of the water orifice so that it can form stable ingot in the mold. The nozzle can also be used to adjust the temperature and composition of molten steel to meet the requirements of different brands and specifications of steel products.

1. Continuous casting process control: The tundish nozzle is used to control the flow and pouring process of molten steel, to ensure that molten steel enters the crystallizer at a stable speed and flow rate, and forms an ingot that meets the requirements. By adjusting the opening and closing of the nozzle and adjusting the flow rate, the temperature, composition and fluidity of molten steel in the continuous casting process can be controlled.

2. Composition adjustment: Tundish metering nozzle can be used to adjust the composition of molten steel to meet the requirements of steel products of different grades and specifications. By adjusting the opening degree and flow rate of the nozzle, the impurity content and the addition of alloying elements in the molten steel can be controlled to a certain extent.

3. Temperature control: Tundish nozzle can be used to control the temperature of molten steel. By adjusting the cooling system of the nozzle, the area near the nozzle can be cooled, the temperature of the molten steel can be lowered, and a suitable solidification structure can be ensured in the mold.

4. Ladle cleaning: The nozzle of the tundish can also be used for cleaning and purifying the ladle. In the continuous casting process, the tundish metering nozzle can be used to flush and clean up impurities and residues in the ladle to ensure the quality and purity of molten steel.

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