Steel coils are processed for cold rolling or hot rolling through a series of steps. For cold rolling, the steel coils are first cleaned and pickled to remove any impurities. They are then passed through a series of rolling mills, where the steel is gradually reduced in thickness and elongated. This process improves the steel's strength and surface finish. In contrast, for hot rolling, the steel coils are heated to high temperatures and then passed through a series of rolling mills. The hot rolling process allows for greater deformability and shaping of the steel, resulting in different thicknesses and shapes.
Steel coils are first unwound and inspected for any defects. Then, they are cleaned and treated to remove any impurities. For cold rolling, the coils are passed through a series of rollers at room temperature to reduce their thickness and improve their surface finish. On the other hand, for hot rolling, the coils are heated to high temperatures and then passed through rollers to achieve the desired thickness and shape.
Steel coils are processed for cold rolling or hot rolling through a series of steps. For cold rolling, the steel coil is first uncoiled and then cleaned to remove any dirt or impurities. It is then passed through a series of rollers to reduce its thickness and improve its surface finish. On the other hand, for hot rolling, the steel coil is heated to high temperatures and then run through a set of rollers to reduce its thickness and shape it into the desired form. Both processes involve careful control of temperature, pressure, and speed to achieve the desired properties and dimensions of the steel.