Sollac

Sollac (societe Anonyme)

Patrick Vanhee

Jean-Jacques Campas

Stephane Terreaux

The invention relates to an apparatus for detecting surface defects on a running metal strip (,), which comprises means (,) for illuminating the area (,) of the strip (,) to be inspected, at least one pair of cameras (,) each periodically capturing an image of the same portion (,) of said area (,), a computing unit (,) comprising means for reconstructing a stereoscopic image of said portion (,) from the images provided by the pair of cameras (,), means for detecting, on said stereoscopic image, those objects which exhibit a relief&mdash;as a projection or as an indentation&mdash;with respect to the surface of the strip (,) greater than a predetermined threshold, means for analyzing the images of said objects and means (,) for displaying the result of this analysis to the operator.

Apparatus for detecting surface defects on running metal strip

The invention relates to a device for the measurement of the thickness profile of a metal product in the form of a moving strip or a moving plate, of the type composed of an X-ray source emitting in the direction of the said product, an X-ray detection unit (21) located on the other side of the product with respect to the said source, means (22) for processing the signals emitted by the detection unit enabling the thickness profile of the said product to be measured, and means (23, 24) for cooling the detection unit and means for processing its signals, wherein the detection unit and the means for processing its signals are arranged on a support plate (18) fitted with a closure plate (19), the closure plate including electrical (27) and fluid (25, 26) connections necessary for the operation of the detection unit and of the means for processing its signals, in that the support plate is inserted into a box of which one of the side faces has an opening, means (20) for the attachment of the closure plate and means for sealing the join between the box and the closure plate, that face of the box located opposite the product having, facing the detection unit, a window made of an X-ray-permeable material and in that the box is installed in a frame which holds it close to the product.

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Briey, France

Patrick Vanhee