Hot Rolled Cylinder Tube After The Difference

Hot rolling cylinder pipe continuous casting round tube slab or priming slab as raw materials, through the step heating furnace heating, high pressure water descaling into roughing mill, roughing mill through cutting, tail, and then into the finishing mill, the computer control rolling, after the final rolling laminar cooling and coiler winding, straight coil. The head and tail of the straight hair curl are often tongue and fishtail, the thickness and width accuracy are poor, and the edge often has defects such as wave shape, fold edge and tower shape. The coil weight is heavy, and the inner diameter of the steel coil is 760mm. After finishing lines such as cutting the head, cutting the tail, cutting the edge and straightening and leveling for multiple passes, the straight hair coil is then cut or rerolled to become: hot rolled steel plate, flat hot rolled steel coil, longitudinal cutting strip and other products. Hot rolled finishing coil is formed after pickling and oil coating.