Method to produce a metal strip, and production plant implementing said method

Abstract

Method to produce metal strip that comprises the casting of a cast product through a casting machine provided with a crystallizer to obtain a slab, and the hot rolling of the slab in a rolling station to obtain metal strip. The casting machine, during casting, exerts an action of reducing the thickness of the cast product exiting the crystallizer.

Description

FIELD OF THE INVENTION[0001]The present invention concerns a method to produce a metal strip and the production plant implementing said method.[0002]In particular, the method according to the present invention allows to define the modes to obtain a metal strip and a constructive layout of a plant for producing hot-rolled metal strip.BACKGROUND OF THE INVENTION[0003]In the iron and steel industry, plants for producing metal strip are known which usually comprise a mold configured to cast slabs, extraction devices provided to extract the slabs from the mold, and a rolling line located downstream of the extraction devices, configured to reduce the overall thickness of the slab until a metal strip of the desired thickness is obtained.[0004]Depending on the thicknesses of the metal strip to be obtained, as well as on the overall productivity that the plant needs to have, it is known to suitably size the entire plant so that it complies with the required parameters, at least with regard t...

AI Technical Summary

Benefits of technology

The patent describes a casting machine that reduces the thickness of cast products, resulting in better quality. Additionally, the invention can help reduce maintenance interventions at the rolling station.

Problems solved by technology

This sizing, that is, the preparation of the strip production plant, however, sometimes does not allow to reach an effective compromise between the investments required for the construction of the plant, also called Capex, and the operating transformation costs, also called Opex.

There are therefore situations in which the investments incurred for the construction of the production plant are too high compared to the revenues, and therefore a production plant is supplied that is oversized with respect to the client's productivity, or alternatively, situations arise in which the production plant is undersized and therefore does not allow to reach the production capacity required by the client.

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