Method for refurbishing rolls

B - Operations – Transporting – 21 – B

Patent

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Details

B21B 28/04 (2006.01) B21B 28/02 (2006.01)

Patent

CA 2457168

The invention relates to a method for reconditioning rollers for the production of rolling mill products. According to the inventive method, the rollers are reconditioned following or during use, by treatment of the surface thereof. One such method is significantly improved in terms of related down time and costs by the fact that the surface of the roller is treated by means of a liquid jet and the hydrostatic pressure during the production of the jet is set to between approximately 50 and 250 Mpa, preferably between 70 and 150 MPa.

L'invention concerne un procédé permettant de remettre en état des cylindres utilisés pour produire des laminés. Selon ce procédé, les cylindres sont remis en état, après ou pendant leur utilisation, par réusinage de leur surface. Un tel procédé est sensiblement amélioré, du point de vue des temps d'arrêt et des coûts associés, par le fait que la surface des cylindres est réusinée au moyen d'un jet de liquide, la pression du liquide lors de la production du jet étant réglée entre 50 et 250 MPa, de préférence entre 70 et 150 MPa.

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