The working process of the continuous casting and rolling production line is as follows: first, the steelmaking plant pours the molten steel into the billet ladle of the continuous casting machine, and evenly injects the steel into the continuous casting mold through the nozzle of the continuous casting machine, allowing it to quickly cool and solidify into a billet. Next, the billet is cut into suitable lengths by a cutting machine and transported to the continuous rolling mill.
The continuous rolling unit is the core part of the continuous casting and rolling production line, which is composed of multiple roller tracks. Firstly, the billet is preheated in a preheating furnace to reach a temperature suitable for rolling. Then, the casting billet undergoes blooming by the blooming mill to reduce its thickness to the predetermined value. Next, the billet is further pressed into the required specifications and dimensions through multiple passes of rolling through a precision rolling unit. Finally, after cooling and processing by the sizing unit, the rolled steel is cooled to room temperature and cut into the required length.
The continuous casting and rolling production line has many advantages. Firstly, it can achieve efficient production, which is much higher than traditional step-by-step production processes. Due to the direct connection between the continuous casting and rolling processes in the continuous casting and rolling production line, the waste of time and energy in the intermediate links is reduced, greatly improving production efficiency. Secondly, it can save energy. Due to the continuous casting process in the continuous casting and rolling production line, the molten steel is directly injected into the mold for cooling and solidification, without the need for additional heating and cooling processes, which can greatly reduce energy consumption. In addition, the continuous casting and rolling production line can also improve product quality. Due to the ability of the continuous casting and rolling production line to control the thickness and size of steel very accurately through multiple passes of rolling, the quality and stability of the product are improved.
Although the continuous casting and rolling production line has high requirements for raw materials, the continuous casting unit in the continuous casting and rolling production line needs to directly inject the molten steel into the mold for cooling and solidification, which has strict requirements for the composition and temperature of the steel liquid. At the same time, the continuous casting and rolling production line also has high requirements for operators, requiring them to have professional technical and operational capabilities. However, the continuous casting and rolling production line is an efficient The energy-saving steel production process closely combines the continuous casting and rolling processes, achieving efficient and energy-saving steel production. Therefore, with the continuous development of the metallurgical industry, efficient continuous casting and rolling production lines have also been widely applied.