Automatic gauge control (AGC) self-adaptive control method for hot rolling mill

A technology of self-adaptive control and finishing rolling mill, applied in rolling mill control device, metal rolling, metal rolling, etc., can solve the problem of low control precision of strip head thickness, improve the overall thickness control precision and improve quality Grade effect

Active Publication Date: 2013-12-25
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to develop an AGC self-adaptive control method for hot continuous rolling and finishing mills to solve the problem of low control precision of strip head thickness

Method used

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  • Automatic gauge control (AGC) self-adaptive control method for hot rolling mill
  • Automatic gauge control (AGC) self-adaptive control method for hot rolling mill

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Embodiment Construction

[0016] The present invention takes 7 groups of continuous finishing mills as an example, with reference to figure 1 , 2 , in the AGC self-adaptive control method of the hot continuous rolling finishing mill, select a stand at the front end of the finishing mill as the automatic control system to collect and calculate the actual roll gap and rolling force value of the stand and the roll gap and rolling force set by the model The scale factor of the value is the key point of this technique. In the present invention, this front-end frame is optional, if there is abnormality in the roll gap and rolling force detection equipment of F1 frame, it will cause inaccurate self-adaptive function, at this moment just can choose F2 frame as front-end machine frame, the self-adaptive function is automatically adjusted to correct the set roll gap and rolling force of the F2 ~ F7 frame; if the front end frame is F3, the set roll gap, The rolling force is corrected; and so on, whichever rack ...

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Abstract

The invention relates to an automatic gauge control (AGC) self-adaptive control method for a hot rolling mill, wherein the problem, which cannot be solved by an AGC setting model, that thickness control precision of several strip steel heads before changing a specification during a rolling procedure is not high is solved. The technical scheme of the invention is that the AGC self-adaptive control method for the hot rolling mill comprises the following step of performing an AGC self-adaptive control function of online adjusted of the presetting roll gap and roll force of the rack selected at front end of the rolling mill and all racks at the rear end of the rolling mill according to a different value between the real roll gap and real roll force of the rack at the front end of the rolling mill during a steel biting procedure and the roll gap and roll force preset by the AGC setting model, so that the thickness control precision of the strip steel heads at the exit of the rolling mill is improved.

Description

technical field [0001] The invention relates to an automatic thickness control (AGC) self-adaptive control method of a hot continuous rolling and finishing mill. It uses the self-control idea of ​​the automatic control system of the hot continuous rolling and finishing mill to establish an AGC adaptive control method to improve the output of the finishing mill. The thickness control accuracy of the strip head solves the problem that the thickness control accuracy of the strip head is not high during the rolling process, which cannot be solved by the AGC setting model. Background technique [0002] At present, in the production of hot continuous rolling enterprises, there is a problem that the thickness control accuracy of the strip steel head is not high in the control of strip steel thickness. The reasons are as follows: 1. At present, only There are two functions of thickness gauge AGC and monitoring AGC. The thickness gauge AGC has the characteristics of real-time perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/20
Inventor 张奉贤
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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