A new advanced and breakthrough technology has been developed for hot slab on-line surface
inspection and installed in Aceralia (Spain). This innovative inspection system,
integrating novel Conoscopic Holography, CCD cameras, a complex mechanical system
and intelligent tools, operates in the real environment of a continuous casting facility,
allows on-line hot slab surface inspection of 100% of the production, detecting cracks -
without removing the surface scale - and inclusions (peeling a narrow strip on the surface).