| 摘要 |
The invention relates to a method for fabricating a steel strip (1), in which firstly a slab (3) is cast in a caster (2), with the slab (3) exiting the caster (2) at a casting speed (v) with a given slab thickness (H), with the slab (3) then being rolled to form a strip (1) in at least one rolling train (4, 5) having a number of rolling stands (6, 7) and the strip (1) having a final thickness (d E) downstream of the last rolling stand (6, 7). In order to maintain optimum processing conditions and be able to react to unexpected events, the invention provides the following method steps: a) providing a functional relationship in a machine controller (8) between the casting speed (v) or the mass flow as a product of casting speed and slab thickness (v x H) or as a product of strip speed and strip thickness and the strip temperature (T) downstream of the last rolling stand (7), which rolls the strip (1), for a different number (n) of active rolling stands (7) and different final thicknesses; b) determining or specifying the casting speed (v) or the mass flow (v x H) and feeding the determined value into the machine controller (8); c) determining the optimum number of active rolling stands (7) and the final thicknesses and thickness reductions which can be rolled with them in the rolling train using the functional profiles stored in accordance with step a) in the machine controller (8) in order to achieve a desired strip temperature (T) downstream of the last active rolling stand (7) at the given casting speed (v) or at the given mass flow (v x H); d) raising a number of rolling stands (7) in the rolling train (5) so that only the number of rolling stands (7) determined in accordance with step c) are active.
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