Continuous forging system for cast slab strand

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 11/128 (2006.01) B21B 15/00 (2006.01) B21J 7/34 (2006.01) B22D 11/12 (2006.01) B22D 11/20 (2006.01)

Patent

CA 2081334

According to the present invention, in case of continuously forging a cast strand in its final solidification region, in order to forge the cast strand with uniform reduction amounts on front and rear sides of the strand notwithstanding the cast strand is wrapped or floated during movement of the cast strand being drawn from molds, the head end oil chamber and the rod end oil chamber of each of positioning cylinders for adjusting the positions of anvils are connected by means of hydraulic oil passages having a selector valve, and further the hydraulic oil passages connected to the head end oil chambers of the positioning cylinders are connected to each other by means of a first bypass line.

L'invention se rapporte à un système dans lequel, au moment où le travail de forgeage en continu est appliqué à la région de solidification finale d'une barre coulée en vue de réaliser un forgeage à partir des surfaces avant et arrière de la barre sous l'action d'une force de laminage uniforme en dépit des gauchissements et des gondolements pendant le mouvement d'étirage de la barre coulée, les cylindres de positionnement qui servent à régler la position de l'enclume sont reliés entre eux au niveau d'une chambre hydraulique du côté d'une tige et au niveau d'une chambre hydraulique du côté d'une tête, par l'intermédiaire d'un conduit d'écoulement de fluide hydraulique comportant une soupape de commutation, et des conduits d'écoulement de fluide hydraulique reliés aux chambres hydrauliques correspondantes du côté de la tête des cylindres de positionnement sont en outre reliés entre eux par l'intermédiaire d'une première ligne de dérivation.

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