Production method of rough surface acid continuous rolling hot rolling pickling plate

Abstract

The invention provides a production method of a rough-surface acid continuous rolling hot-rolled pickled plate, which realizes the purpose of producing the rough-surface hot-rolled pickled plate on an acid continuous rolling unit by performing uncoiling, head-to-tail connection, withdrawal, straightening and scale breaking, pickling, rinsing, drying, trimming, rolling and coiling on a hot-rolled raw material meeting technical requirements. When the rough-surface hot-rolled pickled plate is produced, the equipment function of the acid continuous rolling unit is fully utilized, the investment is saved, the risk is reduced, the research and development requirements of the rough-surface hot-rolled pickled plate are met, the product category produced by the acid continuous rolling unit is expanded, and the method is pioneering in China.

Description

technical field [0001] The invention belongs to the technical field of iron and steel material engineering, and specifically relates to a method for producing matte acid continuous rolling and hot-rolled pickling plates. Background technique [0002] After decoiling, pickling, leveling and coiling, the hot-rolled sheet is processed into a hot-rolled pickled sheet. The hot-rolled pickled sheet requires dimensional accuracy, surface quality, and flatness between the hot-rolled sheet and the cold-rolled sheet. The hot-rolled pickled plate has high dimensional accuracy, and the thickness accuracy is completely guaranteed by the dimensional accuracy and compensation of the hot-rolled raw material. The width accuracy requires edge trimming during the production of the hot-rolled pickled plate; The corrosion inhibitor used in the pickling process; the flatness belongs to the category of plate shape control, which improves the operator's plate shape control level. Hot-rolled pickle...

AI Technical Summary

Problems solved by technology

[0003] In addition to the raw materials for continuous annealing and galvanizing, the acid rolling line still has some abundant production capacity. Chilled coil is an intermediate product. Due to the influence of the downstream, the price is relatively low, which cannot meet the need to release the abundant production capacity.

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