A low energy consumption cold rolling annealing equipment and cold rolling annealing process

Abstract

The invention relates to a cold rolling and annealing equipment with low energy consumption, which comprises a main table, a guide device arranged on the main table and guiding and conveying the steel, and an oil spraying device arranged in the main table and spraying rolling oil on the surface of the steel , a cold rolling device installed on the main table and cold rolling the steel, a natural gas annealing furnace installed on the side of the main table and capable of annealing the steel, the cold rolling device includes a Two vertical plates, a roll groove opened on the upper surface of the main table, a lower backup roll and a lower work roll arranged inside the roll groove and abutting each other, and an upper backup roll and a mutual abutment set between the two vertical plates. The upper work roll is in contact with the upper surface of the steel material, and the lower work roll is in contact with the lower surface of the steel material, and the upper work roll is abutted and supported by the upper backup roll and the lower work roll is supported by the upper backup roll, and the steel material is lifted. The effect of cold rolling quality.

Description

technical field [0001] The invention relates to the technical field of production and manufacture of cold-rolled steel coils, in particular to a low-energy-consumption cold-rolling and annealing equipment and a cold-rolling and annealing process. Background technique [0002] Cold-rolled steel coils are generally subjected to pickling to remove the oxide film on the surface of the steel, and then cold-rolled the steel, so that the steel is compressed and deformed, the thickness becomes thinner, and the length becomes longer, and then the steel is processed. Annealing restores the plasticity of the steel and reduces the deformation resistance of the steel. After that, the final product processing process is carried out through a series of inspection, shearing, straightening, printing, sorting and packaging. For the sake of energy saving, there is a cold rolled steel coil. The natural gas annealing furnace is used for the annealing treatment of steel in the production line. ...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the first cold rolling roll and the second cold rolling roll are prone to bending under the condition of long-term cold rolling work, and then the strip steel is subjected to uneven cold rolling, which affects the strip steel. Defects in the cold-rolled quality of steel

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