Continuous casting slabs or primary rolling slabs are used as raw materials, heated by a stepping furnace, and dephosphorized by high-pressure water, and then enter the roughing mill. The rough rolling material is cut through the head, tail, and then into the finishing mill, and computer-controlled rolling is carried out. After the final rolling, it will go through laminar cooling (computer-controlled cooling rate) and take-up by the coiler to become a straight hair coil. The head and tail of straight hair curls tend to be tongue-shaped and fish-tailed, with poor thickness and width accuracy, and often have wavy, folded, tower-shaped and other defects on the edges. The coil is heavier and the inner diameter of the steel coil is 760mm. (Generally used in the pipe-making industry.) After straightening the hair through the cutting head, tail cutting, trimming and multi-pass straightening and smoothing finishing lines, and then cutting or re-rolling, it becomes: hot rolling Steel plates, flat hot rolled steel coils, slitting tapes and other products. If the hot-rolled finishing coil is pickled to remove scale and coated with oil, it will become a hot-rolled pickled coil.
Carbon Steel Coil,Cold Rolled Steel Coil,Cold Rolled Steel Coils,Hard Cold Rolled Steel Coil Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com
This press developed by the design team of the Heavy Design Institute of Forging Hydraulics has a two-column prestressed frame combination structure, a rectangular guide rail, a combined moving beam, an anvil rotary clamping device, an anvil library, and a movable machine. Workbench and horizontally moveable anvil. Compared with the traditional three-beam four-column press, it has strong anti-offset capacity, easy adjustment of the guide gap of the column, contact between the slide plate and the column surface, wide operating field, wide working range, easy access to lifting equipment and good rigidity of the frame. . Compared with the double-column drive press, it has the advantages of small moving mass, easy control and shallow pit.
Heavy Design Institute successfully developed 12.5MN fast forging hydraulic press
With the development of forging press technology, the traditional three-beam four-column press has not been able to meet the modern high-efficiency, high-automation, high-precision production requirements due to its own structural characteristics. The heavy design institute responded quickly according to the market demand. After the joint development of the 25MN double-column transmission fast forging hydraulic press, it took only two months to develop the 12.5MN fast forging hydraulic press independently, which filled the heavy products. The blank has achieved a breakthrough in technology development in this field.