Although the speed and efficiency of production are closely related, sometimes fast speed does not necessarily mean good quality control. Therefore, there must be a relative speed node between the two, so that we can achieve both high efficiency and high quality.

To fully deform the steel bars, it is necessary to control the speed of hot rolling appropriately, generally between 0.5-1.0. At the same time, it is required that after hot rolling to the specified stress and hot rolling rate, the steel bars should be stopped for 2-3 seconds before relaxing and ending the cold drawing to allow sufficient deformation time for the steel bars. The hot-rolled flat steel produced in this way is more suitable for our use.

The linear velocity difference at each point of hot-rolled flat steel is reduced, and the deformation of the rolled piece is averaged, resulting in a decrease in roll consumption; The improvement of the tail shape also reduces its wear and tear on the steel plate, indirectly reducing its energy consumption; The metal deformation is average and less chaotic, and the rolling pressure is uniform, especially the peak pressure is smaller, which greatly reduces or eliminates the phenomenon of hole holes being overfilled or underfilled that cause defects in the board, allowing for the rolling of thinner boards; Lower uniform rolling pressure can also be achieved by using cheaper inner hollow core rods. The low pressure also reduces the temperature rise of the inner hollow core rods. The use of internal and external cooling can effectively cool them, greatly reducing the energy consumption of hot-rolled flat steel.

Of course, no matter what kind of work is done, it is not possible without a certain speed. Efficiency and speed are always essential topics in our production, especially for products like hot-rolled flat steel.