Rail surface inspection system

Thursday, 04 January 2007 01:00

Rail surface inspection system

A new developed rail inspection system has been commissioned at Corus steelworks in Scunthorpe, UK.

The system records 6.000 images of the surface of each rail at a speed of four metres a second.

The red hot rail is illuminated and optical filtering takes out the glow of the red hot steel. Thereby the rail is presented with a cold appearance. The pictures of the surfaces are displayed to the operators at a speed determined by the inspectors and not by the roller table. Rails with significant surface defects are registered and can be traced later on the cooling bed.

Software facilities for automatic detection of defects, and stamped identification numbers, will be developed.