Cold-rolled silicon steel thickness control method and device based on full-process data

Abstract

The invention relates to a cold-rolled silicon steel thickness control method and device based on full-process data, and the method comprises the steps: for a certain cold-rolled steel coil, monitoring AGC is used by default in the first pass, before the cold-rolled steel coil enters a cold-rolling mill process for production, the production process and quality data of the previous full process of the cold-rolled steel coil are obtained, pre-identification is carried out, and if the performance fluctuation of silicon steel is found, the cold-rolled steel coil is determined; if yes, the first pass additionally uses the second flow AGC; if it is found that the silicon steel thickness fluctuation is not violent, the feedforward AGC is additionally used for the first pass. According to the method, manual interference is not needed, the optimal AGC production mode can be automatically determined before production by adopting the rule, the thickness precision of a silicon steel product is ensured, and the defect of the silicon steel thickness index is avoided.

Description

technical field [0001] The invention belongs to the technical field of cold-rolled silicon steel, and in particular relates to a method and device for controlling the thickness of cold-rolled silicon steel based on full process data. Background technique [0002] Cold-rolled silicon steel is a steel variety with extremely high added value. It is mainly used as the iron core of various motors, generators, compressors, motors and transformers. It is an indispensable raw material product in industries such as electric power and home appliances. [0003] The thickness deviation (referred to as thickness difference) of cold-rolled silicon steel is an important quality dimension. On the one hand, a large thickness difference will affect the production efficiency of the downstream process; on the other hand, the lamination coefficient decreases with the increase of the thickness difference, and every 1% reduction in the lamination coefficient is equivalent to a 2% increase in iron ...

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to overcome the defects of the prior art, and provide a method and device for controlling the thickness of cold-rolled silicon steel based on the whole process data, which can determine the optimal AGC production mode before production without manual intervention, ensuring Thickness accuracy of silicon steel products to avoid defects in silicon steel thickness indicators

Images