17 June 2009 Industrial online surface defects detection in continuous casting hot slabs
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Abstract
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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