Direct rolling process for heavy-medium plate billet continuous casting-rolling mill set

Abstract

The present invention discloses a straight rolling process of heavy and medium slab continuous-casting continuous-rolling mill train. Its technological process includes the following steps: converter-LF furnace-casting machine-cutting slab into size-feeding roller table-high-pressure water descaling-vertical roll sizing-roughing-hot coiling box-flying shear cutting head and cutting tail-high pressure water descaling-finished rolling-laminar flow cooling-coiling to obtain finished product. It is characterized by adopting casting blank straight rolling process.

Description

technical field [0001] The invention belongs to the field of metallurgical steel rolling, in particular to a direct rolling process of a medium-thick slab continuous casting and rolling unit. Background technique [0002] In recent years, with the intensification of the world's energy crisis, the metallurgical industry, as a large energy-consuming household, has had serious contradictions between capacity expansion and energy scarcity. Energy-saving and efficient production processes have become the main research direction of metallurgical enterprises. The casting and rolling process provides a development direction for energy saving and consumption reduction. According to the conventional continuous casting and rolling process, the energy consumption is 463wh / t, but can new ways of energy saving be explored in the continuous casting and rolling process? At the end of the last century, some iron and steel enterprises tried to use the direct rolling process for the slab and u...

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the existing continuous casting and rolling technology cannot realize the direct rolling process, the present invention proposes a set of direct rolling process for medium-thick slab continuous casting and rolling unit

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