| 摘要 |
<p>The invention relates to a process and a device for squaring and for flash-butt-welding the leading and trailing ends of metal sheets (strips) in a combined machine comprising a welder and a shear cutter. According to the process of the invention, the ends of an incoming sheet (18'') and outgoing sheet (18') are held, after they have been centred and aligned, by means of auxiliary holding devices (4, 4') that are then kept in use, the space between the pairs of jaws (3, 3') of the welder is adjusted before inserting the shear cutter (2) into this space, the jaws (5, 6, 5', 6') of the welder being open, the shear cutter is centred with respect to this space and inserted into it by bringing the counter-blades (12, 12') between the open jaws (5, 6, 5', 6') of the welder, the jaws (5, 6, 5', 6') of the welder are clamped tight and the shear cutter (2) is actuated, the jaws (5, 6, 5', 6') of the welder are slackened and the shear cutter (2) removed, the jaws (5, 6, 5', 6') of the welder are tightened up again before moving the pairs of jaws (3, 3') closer to each other and flash welding the ends of the incoming and outgoing metal sheets. The invention is particularly intended to be used for ensuring continuity of a line making flat products in the iron and steel industry. <IMAGE></p> |
