Deep processing treatment system for hot rolling strip steel

Abstract

The invention relates to a deep processing treatment system for hot rolling strip steel, and belongs to the technical field of deep processing of strip steel. The system comprises an independent hot rolling strip steel leveling machine set and a heat treatment line; the heat treatment line comprises a quenching heat treatment line and / or a normalizing heat treatment line; and the hot rolling strip steel leveling machine set (2) and the heat treatment line are arranged in adjacent finished product spans, and a leveling plate produced by the hot rolling strip steel leveling machine set is transported to the heat treatment line by spanning a platform lorry (1) or through other transportation modes to carry out quenching or tempering treatment. The system has the advantages of simple combination mode, flexible process route, wide range for adapting steels, little occupied area, investment conservation and the like, and can produce a product with high performance and high added value at the same time of meeting the requirements of common users so as to meet special requirements of high-end users and partially replace middle board products.

Description

technical field [0001] The invention belongs to the technical field of strip steel deep processing, and in particular provides a hot-rolled strip deep-processing system, which can realize the flattening and heat treatment requirements of steel coils in a hot-rolled strip production line. Background technique [0002] At present, for the vast majority of hot-rolled strip production lines at home and abroad, the deep processing of hot-rolled strip is mainly to produce flat plates through flattening units. The flat plate produced by the Kaiping unit maintains the mechanical properties of the original hot-rolled coil. Although the appearance is straight, the residual stress only tends to be uniform and has not been fundamentally eliminated. Therefore, its products have a limited application range and low added value, and can only meet the needs of ordinary users, and cannot replace medium plate products of the same specification; especially in shipbuilding steel, boiler and pres...

AI Technical Summary

Problems solved by technology

The flat plate produced by the Kaiping unit maintains the mechanical properties of the original hot-rolled coil. Although the appearance is straight, the residual stress only tends to be uniform and has not been fundamentally eliminated.

Therefore, its products have a limited application range and low added value, and can only meet the needs of ordinary users, and cannot replace medium plate products of the same specification; especially in shipbuilding steel, boiler and pressure vessel steel, bridge steel, pipeline steel , high-strength mechanical steel and other aspects are greatly restricted, so that the production capacity advantages of the hot-rolled strip steel production line cannot be brought into play

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