Dofasco Inc.

Tenova S.p.a.

William Hill

Giovanni Boselli

Claudio Trevisan

Giovanni Guido Maria Bavestrelli

Tedd Kerr

Paul Schumacher

Andrea Tognoni

Ron Howard

Ron Webber

A method for classification of defects and running of grinding of lamination cylinders includes identifying defect areas in a map illustrating a plurality of surface measurements of a cylinder. The method includes calculating, for each area identified, a plurality of parameters. The method includes identifying a type of defect associated with the areas identified, on the basis of the parameters calculated. The method includes determining an acceptability threshold of a specific defect for each type of defect identified. The method includes defining a corrective action for each area on the basis of a comparison between the acceptability threshold associated with the type of defect of the area, and a measurement of the surface measurements of the cylinder associated with the area. The method includes determining grinding parameters on the basis of the surface measurements of the cylinder, if the corrective action is a grinding operation to remove the defects.

Method for the classification of defects and running of lamination cylinder grinding

The Roll Defect Management Process (RDMP) 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 for generating variable amplitude output voltage signals corresponding to changes in physical properties found in a mill roll 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.

Roll defect management process

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Dundas, Canada

William Hill