Roll defect management process

G - Physics – 01 – N

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G01N 27/00 (2006.01) G01N 27/20 (2006.01) G01N 27/82 (2006.01) G01N 29/04 (2006.01) G01N 29/30 (2006.01) G01N 29/44 (2006.01) G01N 33/20 (2006.01)

Patent

CA 2432469

The Roll Defect Management Process (RDMP) (24) is a system which is designed to manage, track and evaluate all mill rolls found in use in the hot and cold production of flat rolled metal strip. The RDMP is capable of detection, distinction and differentiation of various defects found in the mill roll using a nondestructive inspection system (21) for generating variable amplitude output voltage signals (41, 81) corresponding to changes in physical properties found in a mill roll (1) and defines corrective action for each roll type, mill, stand and position. The disposition and corrective actions of the RDMP are automated and dependent on the determination of various thresholds identified by roll, mill and stand.

L'invention concerne un procédé de gestion de défauts de laminoirs (RDMP) (24), un système destiné à gérer, pister et évaluer tous les laminoirs utilisés dans la production à chaud et à froid de bandes métalliques plates laminées. Le système RDMP peut détecter, distinguer et différencier divers défauts trouvés dans le laminoir à l'aide d'un système (21) de contrôle non destructeur destiné à générer des signaux (42, 81) de tension de sortie d'amplitude variable correspondant aux changements des propriétés physiques d'un laminoir (1), et définit une action corrective pour chaque type de rouleau, laminoir, montant et position. La disposition et les actions correctives du système RDMP sont automatisées et dépendent de la détermination de divers seuils identifiés par rouleau, laminoir et montant.

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