1. Changing the Shape of Steel
Steel rolling involves passing a steel billet through a series of rollers, causing it to undergo plastic deformation and ultimately produce a metal product of the desired shape. This process can produce steel products with various cross-sectional shapes, such as round tubes, square tubes, beams, and angles, to meet the needs of various applications.
2. Changing the Thickness of Steel
Steel rolling not only changes the shape of steel but also its thickness. This process, commonly seen in cold rolling, involves passing thin sheets through a series of rollers to thin them, thereby adapting them to the needs of various applications.
3. Changing the Properties of Steel
Steel rolling can alter the mechanical and physical properties of steel. For example, during hot rolling, the steel undergoes microstructure refinement and recrystallization at high temperatures, improving its strength and plasticity. Cold rolling, on the other hand, increases the hardness and reduces the plasticity of the steel, but improves its tensile strength, wear resistance, and surface quality.
