Roll stand comprising a crown-variable-control (cvc) roll pair

Details Roll stand comprising a crown-variable-control (cvc) roll pair Roll stand comprising a crown-variable-control (cvc) roll pair

B - Operations, Transporting

21

B

B21B 13/14 (2006.01) B21B 27/02 (2006.01)

Patent

CA 2420608

The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (bcont) in which a horizontally active torque (M) acts that leads to a twisting of the rolls and thus to axial forces in the roll bearings. In order to keep the axial forces in the roll bearings as small as possible, the torque (M) is minimized by an appropriate CVC grinding.

L'invention concerne une cage de laminoir comprenant une paire de cylindres équipée du système CVC (Crown-Variable-Control) de réglage du bombé, de préférence une paire de cylindres de travail CVC et une paire de cylindres de soutien. Ces cylindres présentent une zone de contact (b¿cont?) au niveau de laquelle agit un moment horizontal (M), entraînant une torsion des cylindres et la production de forces axiales dans les paliers de laminoir. Afin de maintenir ces forces axiales dans les paliers de laminoir à un niveau le plus bas possible, ce moment (M) est minimisé par une rectification CVC ?

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