Study of Rail Profile before & After Straightening in Bhilai Steel Plant

Conventionally the production of rail track comprises of forming process in which rail is manufactured by rolling, During the process bloom is being passed by several passes and stages, To get an appropriate desired profile of rail section as per requirement. So basically in “Universal Rolling Mill� and “Rail & Structural Mill� of Bhilai Steel Plant there we face some common Issues related to Quality of product during manufacturing process I.e. Rejection of Rail (Some Common Reasons are as follows): Due to uneven Symmetry, Due to Surface Roughness, Un-appropriate or out of tolerances, Defect caused by more Scaling on surface, Development of Fracture in Rail, Internal Defects, Shrinkage of hot rail profile. All the above are which directly affect production parameters and lead to increase in the production time, cost and the material wastage. This paper is about the study and analyse of the defect parameters and the cause of defects occurs during Rail rolling technique and also to provide the correction measures in Roll profile to maintain and improve the Quality of product which is being manufactured in Inline rolling process.