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Flatness is a wide strip a very important indicator of quality. If the flatness control technology configuration complete, advanced, you can increase the production line active control strip shape to accommodate a variety of rolling conditions flatness control requirements. Large steel silo wide strip hot rolling mill plate-shaped configuration of the integrated control technology include the following: All racks roughing mill and finishing mill rolls with variable contact technical support, automatic elimination of inter-roller "harmful contact zone", the low lateral stiffness roll gap into high transverse stiffness roll gap, increase resistance to plate-shaped mill interfering factors improve the mill shape control performance, reduce roll consumption.

In the upstream stand finishing unit (such as F1 ~ F4) using efficient technology becomes crown work roll, plate-shaped strip width adjustment capability with a linear relationship between the roll by channeling it in a substantial increase in the overall shape control capability mill at the same time, enhance the narrow specifications of shape control capabilities.

Downstream of the conventional work roll frame, shifting of the roll by the reciprocating cycle, the uniform wear of the rolls to accommodate the requirements of free rolling. To take into account the shape of the rolled plate inside the unit control, design becomes routine work roll special trip shifting strategy. For specific species, such as silicon, but also at the end of the rack or the end of the two racks using asymmetric work roll technology, shape control and wear control the dual function of strip edge flatness effective control.

Consider hot strip mill shape control characteristics upstream and downstream roller-shaped configuration policies, using the flexibility to adapt to the roll-shaped configuration, fully functional shape control model, including process control level of plate-shaped set model, plate-shaped self-learning models and flatness basic automation level of feedback control model, crown feedback control model, before bending force-fed control model, shape and gauge decoupling model and cooling after rolling flatness compensation strategy, to achieve high-precision flatness control.

Advanced large steel grain storage silo shape control function effectively protect the plate-shaped product quality, making the strip flatness control precision reached a high level, and the production line for the free rolling adaptable, rolling width of up to 70 kilometers up to 300 mm inverse broad jump. Free rolling is achieved, not only can reduce the roll consumption, reduce production time aid for improving the thermal loading rate and thereby reduce the energy consumption is also good.