Rolling trains for the production of tubes and strips
A rolling mill and rolling stand technology, applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of difficulty, time-consuming and high investment cost in thin strip rolling
Active Publication Date: 2016-10-26
SMS GRP GMBH
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Problems solved by technology
[0006] Due to the generally aligned arrangement of the slab-discharge roller table (Austrage roll gang), the roughing or slab stands and the finishing train of the slab furnace, conventional rolling trains have a large length and require more powerful mills. frame, thus high investment cost
Conventional rolling mills are inferior to CSP equipment in terms of energy
Especially when producing thin strip, the input temperature to the finishing train is very low here, which makes thin strip rolling difficult
Due to the necessary temperature control, the production of tubular plates (Röhrenblech) in conventional hot strip trains is also very time-consuming and reduces the output of conventional hot strip trains
Method used
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[0046] figure 1 Shows a part of a hot rolling mill 2 in a first embodiment according to the invention, in which a metal strip 1 runs through a first rolling stand denoted Fi and denoted Fi+1 out of the second rolling stand. The distance between the racks Fi and Fi+1 is respectively between 5 and 25 m. After exiting the finishing stand Fi, the strip 1 passes directly into the induction heating 8 and then into the pair of drive rollers 12 . Via this drive roller pair 12 , a strip tension can be applied to the strip 1 (before the strip head reaches the subsequent stand) and the water remaining on the strip 1 can also be squeezed slightly. A minimum tension adjustment section may be constructed between the frames Fi and Fi+1. Here, the drive roller pair 12 helps to adjust the exact set speed at the machine frame Fi+1. Alternatively, tension-measuring rollers or loopers (not shown) are arranged between the stands to ensure mass flow. Finally, for an application example, a cool...
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Abstract
The invention relates to a rolling train for the production of metal strip, preferably tubular steel and / or thin strip, in which a rapid heating device (induction heating) can be used between the finishing stands Fi and Fi‑1 Affects temperature control, characterized in that the distance between the frames Fi and Fi‑1 (between which the rapid heating device is arranged) is between 5‑25 m, and in addition to the induction heating part, between these two frames Additional units are arranged: a roller straightening unit (for example a roller straightener 14 ) and / or a shear 8 and / or a drive roller pair 12 and / or a mill scale cleaner 15 . Furthermore, the rolling stand Fi and / or the region upstream of the rolling stand Fi have adjustment elements for influencing the strip bowing and / or the strip slippage at the strip head.
Description
technical field [0001] The invention relates to a rolling mill (Walzstraße), in particular a CSP plant, for producing strips, in particular tubular steel and / or thin strips, comprising a casting device for producing thin slabs (Duennbramme) and for rolling the thin slabs Rolling train to make strip or thin strip. Background technique [0002] The production of steel strips or sheets by hot rolling is well described in the prior art. For example, in the article "Improvement of Microstructural Homogeneity in Themomechanical Processed Nb Steels by Thin Slab Casting" by P. Uranga, A. I. (43 rd Mechanical Working and Steel Processing Conference, 15 Charlotte, ISS, Vol. 39, pp. 511-529); in C. Klinkenberg et al., "Processing of Niobium Microalloyed API Grade Steel on a Thin Slab Plant" (Materials Science Forum, 2005, Vol. 500-501, pp. 253-260); and in S. V. Subramanian et al., "Process modeling of microalloyed steel for near net shane casting" (Proc. Of the Int. Conf. On Thermo...
Claims
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IPC IPC(8): B21B45/00
CPCB21B1/463B21B45/004B21B45/04B21B45/00B21B45/06
Inventor J.赛德尔C.克莱因
Owner SMS GRP GMBH