Critical analysis of a steel wire rod plant Processes for Energy Optimization-A case study
Energy is needed in the wire rod plant processes for any value addition activity to develop the finished product. The increased energy costs and an uncertain steel markets have created the demand for a system in the steel plant, to utilizes the rolling process waste heat, or improve rolling process so that next further processing may be avoided for rolled product.. The process energy optimization is a tool to improve profitability, environment and productivity of an organization. In a wire rod plant processes, the aim of energy saving can be achieved by reduced resource consumption and by efficient use of plant installation like reheating furnace, mills and utility. A case study is used to illustrate the rolling processes energy optimization and to demonstrate its applicability.
Temperature distribution in steel during hot rolling: pseudo-bond graph view
Abstract In hot rolling, a metal is given its final shape by plastically deforming the original stock. In this present work, the above mentioned deformation process is modelled, i.e., temperature, flow stress at each point in and around the deformation zone. A viable bond graph model has been developed to study the essential dynamics inside the material. Low-carbon steel has been considered and the modelling is described for single-pass hot rolling.
STUDY ON SCHEDULE FREE ROLLING WITH FLAT ROLL ON F7 FINISH STAND
If the CVC work roll on the F7 stand of Baosteel 2050 mm hot strip rolling mill is substituted by flat roll (for schedule-free rolling, SFR) and the strip profile is controlled by the existing bending force, the control will be inadequate. This fact has been testified through on-site experiment. The NBCM (New Backup Roll Crowning Method) is recommended to improve the profile control. Finally the plastic deformation of the strip and elastic deformation of the roll are analysed by the coupled calculation of rigid-plastic finite element method and G-function method, and the optimal crown range of backup roll is given theoretically.