Hot-rolled steel slab continuous casting round tube or the slab as the raw material, the reheating furnace is heated, high-pressure water descaling into the roughing mill, roughing material by cutting head, tail, and then into the finishing mill, the implementation of computer-controlled rolling, finish rolling after via the laminar cooling and coiling coiling machine, become straight hair volume. straight hair volume head, tail and tongue were often fishtail, poor thickness, width, precision, while often the presence of wave-shaped section, folding, pyramid and other defects.
The hot-rolled steel coil weight heavier, coil inner diameter of 760mm. (Pipe industry generally prefer to use.) The straight hair volume by the cutting head, cutting the end, cutting and multi-pass straightening, leveling of finishing line after the treatment, and then cutting board or heavy volume becomes: hot-rolled steel, flat hot-rolled coil, hot rolled and other products with slitting coil finishing descaled if pickled and oiled hot rolled Serve acid washer volumes.
