17 June 2009 Industrial online surface defects detection in continuous casting hot slabs
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Early surface defects inspection in hot steel products is a difficult task, but can help to reduce significantly production costs. This is the case of steel slabs when they are produced in the continuous casting line. Conoscopic holography phase-based long stand-off profilometers have shown to be a great tool for this kind of inspection, and a breakthrough system based on them is being used for more than 2 years in production conditions with high reliability and economical impact. This paper presents the results of this system and the challenges it has overcome: hot material up to 900°C, dust, scale over the inspected surface.
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Ignacio Alvarez, Ignacio Alvarez, Jorge Marina, Jorge Marina, Jose Maria Enguita, Jose Maria Enguita, Cesar Fraga, Cesar Fraga, Ricardo Garcia, Ricardo Garcia, "Industrial online surface defects detection in continuous casting hot slabs", Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 73891X (17 June 2009); doi: 10.1117/12.827532; https://doi.org/10.1117/12.827532

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