Rolling method and rolling apparatus for flat-rolled metal...

B - Operations – Transporting – 21 – B

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B21B 37/30 (2006.01)

Patent

CA 2519592

The invention provides a rolling method for a flat-rolled metal material and a rolling apparatus for the method each capable of stably producing a flat-rolled metal material free from camber or having an extremely light camber. The method is a rolling method of a flat--rolled metal material executed by using a rolling mill including at least work rolls and backup rolls. The apparatus is a rolling mill for this method. A rolling direction force acting on roll chocks on the operator side and the driving side of the work roll is measured, the difference of the rolling direction force between the operator side and the driving side is calculated and a left-right swivelling component of roll gap of the rolling mill is controlled on the basis of this difference.

L'invention concerne un procédé et un appareil permettant de produire de manière stable un matériau de plaque métallique ne présentant pas de bombage ou un bombage très léger. Le procédé et l'appareil mettent en oeuvre une machine de laminage destinée à un matériau de plaque métallique. La machine comprend au moins des rouleaux d'usinage et des rouleaux de secours. La force dans le sens de laminage exercée sur les cales des rouleaux sur le côté d'usinage et le côté d'entraînement des rouleaux d'usinage est mesurée. Une différence au niveau de la force, dans le sens de laminage, entre le côté d'usinage et le côté d'entraînement est calculée. En fonction de cette différence, des composants asymétriques gauche et droite d'une ouverture des rouleaux de la machine de laminage sont régulés.

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