Rolling mill stand for the rolling of different rolled stock...

Details Rolling mill stand for the rolling of different rolled stock... Rolling mill stand for the rolling of different rolled stock...

B - Operations, Transporting

21

B

B21B 31/32 (2006.01)

Patent

CA 2457177

The invention relates to a roll stand for rolling different rolling stock that requires different roll separating forces. The inventive roll stand comprises working rolls, back-up rolls, optionally a roll bending device for the working rolls and optionally a device for adjusting and balancing the back-up rolls, and pairs of adjustment cylinders (3) between the roll stands (1) and the chocks (2). According to the invention, the adjustment cylinders (3) consist of respective telescope cylinders (4), in which a first, concentric cylinder (5) having a large diameter is provided for high roll separating forces and a second, concentric cylinder (15) having a smaller diameter is provided for lower roll separating forces, thereby avoiding high friction losses.

L'invention concerne une cage de laminoir destinée au laminage de différents laminés nécessitant différentes forces de laminage. Cette cage comprend des cylindres de travail, des cylindres d'appui, éventuellement un dispositif de pliage destiné aux cylindres de travail et éventuellement un équipement destiné au réglage et à l'équilibrage de cylindres d'appui et des paires de cylindres de réglage (3) placés entre les montants de laminoir (1) et les empoises (2) permettent d'éviter les grandes pertes par frottement, de telle façon que les cylindres de réglage (3) soient respectivement composés d'un cylindre télescopique (4) qui renferme un premier cylindre concentrique (5) de grand diamètre pour des forces laminage élevées et un deuxième cylindre concentrique (15) de petit diamètre pour de petites forces de laminage.

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