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Proceedings Paper

Industrial online surface defects detection in continuous casting hot slabs
Author(s): Ignacio Alvarez; Jorge Marina; Jose Maria Enguita; Cesar Fraga; Ricardo Garcia
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Paper 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.

Paper Details

Date Published: 17 June 2009
PDF: 9 pages
Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 73891X (17 June 2009); doi: 10.1117/12.827532
Show Author Affiliations
Ignacio Alvarez, Univ. de Oviedo (Spain)
Jorge Marina, DSIPlus (Spain)
Jose Maria Enguita, Univ. de Oviedo (Spain)
Cesar Fraga, ArcelorMittal (Spain)
Ricardo Garcia, DSIPlus (Spain)

Published in SPIE Proceedings Vol. 7389:
Optical Measurement Systems for Industrial Inspection VI
Peter H. Lehmann, Editor(s)

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