Method and installation for rolling a continuous billet from a furnace for heating billets arranged upstream of a rolling mill.

摘要

Method for rolling a continuous billet (15) from a furnace (10) for heating billets arranged upstream of a rolling mill, in which, between the furnace (10) and a first support (11) of the rolling mill is it provides a welding operation, during movement of the billet, the head of each billet (14), which has left the oven (10) along an axis (12) from the furnace to the tail of the billet ( 15) being rolled which is running along an axis (13) of lamination, wherein said welding operation comprises, in succession, the following steps: a. descaling in moving conditions along the axis (12) of exit of the billets from the furnace of the surfaces of the billet (14) that have left the oven; b. stop billet (14); c. Simultaneous emergence of the head and tail of the billet (14); d. transfer of the billet (14) of the shaft (12) of exit of the billets from the furnace to the axis (13) of lamination, which is staggered with respect to the axis (12); and. gripping of the billet (14) on a machine (19) mobile welding machine; F. transfer accelerated machine (19) welding, and therefore the billet (14), along the axis (13) rolling and subsequent deceleration of the billet (14) until there is gentle contact between the head of the billet (14 ) and the tail of the billet (15) which is undergoing rolling; g. reciprocal welding in moving conditions of said head and tail; h. recoil of the machine (19) from the billets already welder soldiers; i. machine stop (19) welding.