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Strip steel C warping control method

A control method and strip technology, applied in the direction of profile control, etc., can solve the problems of harsh production environment, different warpage, and different operating levels of operators, so as to ensure the quality of strip steel and improve the yield.

Active Publication Date: 2012-10-24
BAOSHAN IRON & STEEL CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the in-depth research on the mechanism, influencing factors, detection methods and control methods of warpage at this stage, the online warpage control of the strip steel production process is generally observed by the operator with the naked eye, and then manually adjusted. realized
The biggest problem with this control method is that due to the fast actual production speed, the harsh production environment, the different warpage of the strip along the length direction in the coil, and the different operating levels of the operators, it is difficult to realize the control of the strip C. warped high precision control

Method used

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  • Strip steel C warping control method
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  • Strip steel C warping control method

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] The principle block diagram of the strip steel C warping control method of the present invention is as figure 1 As shown, the method mainly includes the following four steps:

[0038] A. Install a strip steel C warpage detection device 2 at the entrance of the rolling mill 1 or the skin pass mill to detect the incoming strip steel 7 in real time and obtain the warpage amount of the strip steel 7;

[0039] B. Perform fitting processing on the warpage amount by processor 3 to obtain a warpage height value representing the degree of C-warping of the strip;

[0040] C. Perform displacement processing on the warpage height value through the shift register 4 and delay the output to obtain the warpage height value currently entering the rolling mill 1 or skin pass mill for feed-forward control;

[0041] D. Calculate and cont...

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Abstract

The invention discloses a strip steel C warping control method. The method comprises the following steps of: detecting the warping amount of a strip steel; calculating the warping height value; performing displacement processing to obtain corresponding warping height value for feedforward control; calculating the controlled cutting depth of an anti-wrinkle roller; and performing feedforward control according to the cutting depth so as to control the strip steel C warping by changing the rolling wrap angle and the extension difference between the upper and lower surfaces of the strip steel; and therefore, the method ensures the plate profile and quality of the strip steel and improves the yield of the strip steel.

Description

technical field [0001] The invention relates to the strip steel shape control technology, more specifically, relates to a strip steel C warping control method. Background technique [0002] Shape is one of the main quality indicators of strip steel, and the C-warping defect of strip steel is a typical shape defect. Since the mechanism of C-warping (uneven distribution of residual stress in the thickness direction) is different from that of conventional wave-shaped defects (uneven distribution of residual stress in the width direction of the plate), the means for detection and control of wave-shaped defects cannot It is used to control the C warping defect of strip steel. [0003] With the continuous improvement of users' requirements for the quality of strip products, the C warping defect, which was previously ignored to a certain extent, has gradually attracted widespread attention from users and manufacturers. However, due to the in-depth research on the mechanism, influ...

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Application Information

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IPC IPC(8): B21B37/28
Inventor 舒巧军张晓峰胡广魁张清东阮星谊黄佩杰
Owner BAOSHAN IRON & STEEL CO LTD
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