Continuous casting is the direct cooling and moulding of metal in the continuous casting process. Compared with the traditional casting method, it has the advantages of saving raw materials and energy and improving production efficiency and product quality. Large pressure reduction at the end of the solidification of the continuous casting billet is one of the key steps in the continuous casting process. This article will discuss and introduce the segment of continuous casting machines and their large pressure reduction method.
The continuous casting segment refers to the specific area at the end of the solidification of billet in the continuous casting process, which is usually located behind the last solidification wall. The segment of continuous casting machine plays a vital role in the whole continuous casting process. It not only directly affects the solidification speed and internal structure of billet, but also can control the crystallization structure and mechanical properties of billet by adjusting the temperature and pressure of the segment.
Continuous casting sector section >>>
The design and layout of segment are directly related to the quality of continuous casting and production efficiency. It usually consists of dozens of outlet nozzles, each with a specific angle and flow rate. The angle of the outlet nozzle determines the angle between nozzles, and the flow rate determines the cooling effect of nozzle. By reasonably arranging and adjusting the angle and flow rate of the outlet nozzle, uniform cooling of the billet can be achieved and surface defects can be prevented.
There are many main methods in the process of large reduction at the end of solidification of the continuous casting billet. One of them is to achieve a large reduction effect by adjusting the temperature of the fan segment. Specifically, the temperature of the fan segment can be reduced by increasing the flow rate of cooling water. Lower temperatures can increase the negative pressure on the surface of the billet, thereby improving the continuous casting quality and surface quality. Another method is to achieve a large reduction effect by increasing the pressure of the fan segment. Generally speaking, increasing the pressure of cooling water can improve the cooling effect of the fan segment, thereby improving the continuous casting quality and surface quality.
In addition to the above two methods, a large reduction effect can also be achieved by adjusting the distance and angle between the nozzles. Smaller angles and smaller nozzle spacing can increase the cooling effect of the continuous casting billet, thereby achieving a large reduction effect. In addition, a large reduction effect can also be achieved by adjusting the cooling water flow and pressure of the nozzle. Appropriately increasing the flow and pressure of cooling water can improve the cooling effect of the billet, thereby achieving a large reduction effect.
In summary, a large reduction at the end of the solidification of continuous casting billet is one of the key steps in the continuous casting process. By rationally designing and adjusting parameters such as temperature, pressure and nozzle spacing of the fan-shaped segment, uniform cooling of the billet and prevention of surface defects can be achieved. This not only helps to improve the quality of continuous casting and production efficiency but also improves the mechanical properties and service life of metal materials. Therefore, the research and application of the fan-shaped segment of the continuous casting machine and its large reduction method are of great significance and value.
