Strip mill coils are transferred by conveyor, car or lift equipment to the coil storage area. During the handling and storage of coils, some of the strip usually has to be scrapped due to collapse, excessive deformations and other forms of damage. Losses tend to increase with heavier coils or thinner strip. To minimize such losses it is important to identify the cause and understand the mechanics of coil deformation during various stages of handling. Length and the speed of the hot coil conveyor relates to the deformation of coils placed on their sides (i. e. , the effect of cooling time). In new hot strip mill design, the reduction in the length of the hot coil conveyor results in substantial capital savings. Excessive deformation and collapse of coils can be significantly reduced by proper coiling temperature profile. Long hot coil conveyors are not the most efficient method to reduce coil deformation.
Authors
Robson JE; Ghobarah AA
Journal
Iron and Steel Engineer, Vol. 52, No. 4, pp. 64–66