Method for controlling the shape of an intermediate coil in a hot coil box and related device

By identifying the inner ring eye status of the intermediate billet in the hot rolling box and formulating a bending roll gap adjustment strategy, the problem of poor roll shape control in traditional hot rolling boxes was solved, achieving precise roll shape control and improved production efficiency.

CN119566070BActive Publication Date: 2026-07-07SHOUGANG QIANAN IRON & STEEL CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHOUGANG QIANAN IRON & STEEL CO LTD
Filing Date
2024-12-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional hot rolling boxes are difficult to adapt to the needs of different steel grades and specifications in roll shape control, resulting in poor roll shape or roll failure, and relying on experimental adjustment of roll gap or replacement of roll assembly is not effective.

Method used

By acquiring the inner ring eye state of the intermediate roll, the eye state is identified using the rate of curvature change and symmetry parameters. A bending roll gap adjustment strategy is formulated, and the roll shape control is optimized by combining a self-learning mechanism.

Benefits of technology

It achieves precise control of coil shape, improves production efficiency, reduces the impact of coil defects on subsequent finishing rolling processes, extends the life of key components, and reduces the need for manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a control method for an intermediate coil type of a hot coil box and related equipment, and relates to the technical field of hot coil boxes. The method comprises the following steps: acquiring an inner ring coil eye state of a coiled intermediate product, wherein the coiled intermediate product is formed by a bending operation, a correction operation, a supporting operation and a stabilizing operation of an intermediate strip in a hot coil box, and the intermediate strip is guided into a roller bed of the hot coil box by an inlet side guide plate; and formulating a bending roller gap adjustment strategy based on the inner ring coil eye state of the coiled intermediate product.
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