Facility and method for treating the surface of an elongate product for the purpose of wire-drawing

A facility for treating of a metal long product in movement, in preparation for a wire drawing step, the long product having at least one surface covered with a layer of oxides, comprising:

• a stripping assembly comprising at least one group of a plurality of lasers distributed around the moving long product each laser being configured to emit beams onto the surface of the moving long product for stripping the surface, each laser being intended for the treatment of an associated portion of the surface of the long product
• a control unit configured to acquire information relating to the long product in movement, the information comprising a speed of movement of the long product and at least one characteristic dimension of the long product in a plane orthogonal to an axis of movement of the long product,
• the control unit being configured to:
• determine operating parameters to be imposed on the stripping assembly for obtaining the stripping of the layer of oxides on the surface of the long product and to ablate a layer of metal of predetermined thickness on the surface of the long product and so as to obtain a predetermined roughness on the surface of the long product compared with experimental results pre-recorded in the control unit and
• impose said operating parameters to said stripping assembly.