Rolling Group

What is Rolling?

Rolling is the process of shaping metal by passing it through cylindrical rollers at high temperatures or room temperature to achieve the desired size and shape. This process is used to thin, expand, or shape metals, and it is commonly used in the production of metals like steel and aluminum. Rolling can be performed using two main methods: hot rolling and cold rolling. In hot rolling, the metal is processed at high temperatures, while cold rolling involves shaping the metal at room temperature. Rolling plays a vital role in producing durable and high-quality metal products, which are used in various industries such as construction, automotive, and energy.

Hot Rolling:

Hot rolling is the process of processing metal by heating it to high temperatures, making it easier to shape the metal. During this process, the metal is heated to high temperatures, around 1100°C, and then passed through cylindrical rollers in rolling mills to achieve the desired size and shape. Hot rolling is primarily used in the production of large-volume products such as thick plates, bars, profiles, and pipes. Additionally, during the hot rolling process, the metal's crystal structure is improved, resulting in more durable and high-quality products.

Cold rolling:

Cold rolling is the process of shaping metal at room temperature or lower temperatures. Although shaping the metal is more challenging, this method results in more precise and thinner products. Cold rolling is particularly used for producing thin sheets, strips, wires, and small profiles. During this process, the metal's strength increases, and its surface quality improves. Cold rolling is also necessary for the production of specialized products where tighter dimensional tolerances are required. It is often preferred for applications that demand higher accuracy and surface finish.