| 摘要 |
<p>Installation for preparing metal billets for extrusion, comprising a furnace (1) heating a metal bloom (4), having an elongate receptacle (10), means of heating the bloom and means (3) of pushing the bloom out of the receptacle along a longitudinal axis of movement, and a shear (2) cutting the bloom into billets of a length suitable for extrusion, comprising a pair of rear jaws (5) mounted in a fixed frame (21) and at least one front jaw (65) mounted so as to slide, transversely relative to the axis of movement of the bloom, along the rear jaws (5) and on the opposite site to the furnace (1) and associated with means (66) of controlling, as a result of sliding, the shearing of a specific length of the bloom (4). The rear jaws (51, 52) are placed directly against the outlet end (13) of the furnace (1) in the extension of the receptacle (10), so as to form with the latter a substantially continuous enclosure, while the front jaw (65), arranged in alignment with the receptacle (10) after transverse sliding, forms a door closing the furnace (1) between two shearing operations.</p> |
