Method, device and computer equipment for setting intermediate billet convexity

By calculating the convexity setting model of the intermediate blank, the convexity of the intermediate blank is reasonably set, the problem of large convexity deviation in the headless rolling process is solved, and the configuration of the finishing rolling stand and the shape of the finished plate are optimized.

CN114918261BActive Publication Date: 2025-08-12SHOUGANG GROUP CO LTD
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Patent Information

Application Number
CN202210429840.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-22
Publication Date
2025-08-12
Estimated Expiration
2042-04-22

AI Technical Summary

Technical Problem

In the existing headless rolling process, the target convexity of the intermediate blank varies greatly from the actual convexity, which affects the bending/bounce configuration of the finishing rolling stand and the shape of the finished plate.

Method used

By obtaining the actual intermediate blank parameters, actual finished product parameters and target finished product parameters of the preset steel type, the intermediate blank convexity setting model is used to calculate the intermediate blank convexity setting value corresponding to each finished product thickness range, and the convexity correction value is determined based on the finished product convexity control range, and the intermediate blank convexity range is reasonably set.

Benefits of technology

The bend/roll configuration of the finishing stand is optimized, and the control accuracy and consistency of the finished plate shape is improved.

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Abstract

An embodiment of the present application provides a method for setting the convexity of an intermediate billet, the method comprising: obtaining actual intermediate billet parameters, actual finished product parameters, and target finished product parameters corresponding to each finished product thickness interval of a preset steel grade during a headless rolling process; calculating intermediate billet convexity setting values corresponding to each finished product thickness interval using an intermediate billet convexity setting model based on the actual intermediate billet parameters, actual finished product parameters, and target finished product parameters corresponding to each finished product thickness interval; and determining intermediate billet convexity setting ranges corresponding to each finished product thickness interval based on the target finished product parameters and intermediate billet convexity setting values corresponding to each finished product thickness interval. The technical method provided in the present application can, to a certain extent, reasonably set the intermediate billet convexity, thereby reasonably allocating the bending / shifting roll configuration of the finishing mill stand, and ultimately optimizing the finished product plate shape.
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Citation Information

Patent Citations

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  • Control method for improving head thickness precision of first block of non-oriented silicon steel hot-rolled

    CN105855297A