Improving Periodic Defect Detection in Hot-Rolled Long Products by Means of Combination Between Eddy Current and Vision

Thursday, 4 March 2021 • 11 a.m. – Noon 

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Periodic defect roller marks, PDRMs. are an important problem for hot-rolled long products, Most PDRMs are caused by groove cracks (GCs). An early detection of GCs as well as their identification is of vital importance to improve the profitability of steel plants, and in many cases their survival. In this webinar we will review the fundamentals of periodic detection in hot rolled long products by using the state of the art technologies, more specifically a combination between eddy current and vision fully synchronized that makes users able to make an automatic classification in real time of all occurrences.


Jose Ignacio Lucas​, isend


AIST’s Long Products Technology Committee