Raw material plate starting tension control method and related equipment

Abstract

The invention provides a raw material plate starting tension control method and related equipment.The method comprises the steps that the target rolling thickness of materials and the actual rolling thickness of the materials at an outlet of a rolling mill are obtained; according to the target material rolling thickness and the actual material rolling thickness, the outlet tension amplification multiple of the rolling mill is determined; and determining the target outlet tension of the rolling mill according to the outlet tension amplification multiple. According to the raw material plate starting tension control method provided by the embodiment of the invention, the phenomenon that the rolling requirement cannot be met due to the fact that the outlet tension of the rolling mill is reduced due to large fluctuation of the tension when the raw material plate is started can be prevented, so that the possibility of material deviation is reduced, belt breakage of the material is avoided, and the production efficiency is improved. Reliable guarantee is provided for a rolling mill to smoothly start a raw material plate, stable production of a continuous rolling unit is guaranteed, and the rolling cost is effectively controlled.

Description

technical field [0001] The invention relates to the technical field of rolling mills, in particular to a method for controlling the starting tension of a raw material plate and related equipment. Background technique [0002] In the continuous rolling mill, when the raw material is defective and cannot be rolled normally, the daily maintenance or the specification width is too large, it is necessary to open the roll gap to curl the raw material defect or weld seam out of the continuous rolling stand, and then carry out the starting mode of the raw material plate, that is, start from the thickness of the raw material. Then, the raw material is rolled to the target thickness, and then forced shearing is performed. After the shearing is completed, the normal rolling is carried out according to the target. [0003] However, if the tension of the rolling mill of the continuous rolling mill is not controlled during the starting process of the raw material plate, the strip deviatio...

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Problems solved by technology

[0003] However, if the rolling mill tension of the continuous rolling mill is not controlled during the start-up process of the raw material slab, the strip deviation phenomenon is likely to occur, causing the problem of strip breakage, which seriously affects the stable production of the continuous rolling mill and increases the rolling cost

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