Plant and method for the production of metal

Abstract

Plant for the production of metal products comprising:a main rolling line configured to roll thin slabs;a main casting line of thin slabs associated downstream to a heating and / or maintenance furnace to heat and / or maintain the cast thin slabs at a uniform temperature, the main casting line being positioned upstream of and aligned with said main rolling line, the main rolling line being configured to roll the thin slabs arriving at least from the heating and / or maintenance furnace;an auxiliary rolling line provided with at least one rolling unit configured to roll conventional slabs and obtain thin slabs, and with a transfer unit positioned downstream of the rolling unit and configured to transfer the thin slabs rolled by the latter to the heating and / or maintenance furnace.

Description

FIELD OF THE INVENTION[0001]The present invention concerns a plant for the production of metal products and the corresponding method.[0002]In particular, the plant for the production of metal products is suitable to produce metal products starting from slabs and comprises at least one casting line and at least one rolling line located downstream of and continuous with the casting line.[0003]The present invention also concerns a method for the production of metal products in a plant of the type identified above.BACKGROUND OF THE INVENTION[0004]Plants for the production of metal products are known, comprising a casting line for thin slabs and a rolling line located downstream of and aligned with the casting line.[0005]Downstream of the casting line there is normally a furnace to heat and / or maintain the thin slabs at a determinate temperature before they are rolled.[0006]The rolling line is provided with a plurality of rolling units disposed in sequence and in which the thin slab is p...

AI Technical Summary

Benefits of technology

The patent text describes using an induction heating unit to quickly adjust the heat on thin slabs in transit to ensure they are all thermally homogenized. This increases plant flexibility and allows for maintenance interventions on one line while others continue to work.

Problems solved by technology

Although it increases the efficiency and productivity of the plant, this solution does not allow to obtain, at the end of the production cycle, rolled products with dimensional qualities and mechanical properties that are uniform and constant over time.

Indeed, it is very difficult to guarantee homogenous temperatures for the thin slabs obtained by the auxiliary rolling line with the reversible stand.

The heating of the thin slab in the heating furnace can vary depending on the time it remains inside, but it is difficult to homogenize the temperature of the whole thin slab arriving from the auxiliary line.

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