Intelligent setting method for on-line target strip shape of cold rolling strip

A technology of cold-rolled strip and setting method, which is applied in the direction of metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as plate shape defects, and achieve the effect of clear functions and clear goals

Active Publication Date: 2016-06-22
河北燕赵蓝天板业集团有限责任公司
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Problems solved by technology

Obviously, these two methods will cause a series of problems in the actual application process, and it is easy

Method used

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  • Intelligent setting method for on-line target strip shape of cold rolling strip
  • Intelligent setting method for on-line target strip shape of cold rolling strip
  • Intelligent setting method for on-line target strip shape of cold rolling strip

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] A method for intelligently setting an online target shape of a cold-rolled strip, comprising the following steps:

[0021] 1. Split the shape curve into three types: original shape detection curve, process error shape compensation curve and target shape curve; the original shape detection curve and process error shape compensation curve are superimposed to form an effective measured shape curve , referred to as the effective flatness curve, which can truly reflect the actual cold-rolled strip flatness state, and the target flatness curve represents the flatness control target to be achieved considering the requirements of the subsequent process; in the flatness control process, the corresponding flatness The signal error compensation model compensates and corrects the detected online original shape signal to accurately reflect the real sh...

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Abstract

The invention discloses an intelligent setting method for the on-line target strip shape of a cold rolling strip. The intelligent setting method comprises the following steps that a strip shape curve is divided into an original strip shape detection curve, a technology error strip shape compensation curve and a target strip shape curve, wherein the original strip shape detection curve and the technology error strip shape compensation curve are overlaid to form an effective actually-measured strip shape curve which is called the effective strip shape curve for short, and the target strip shape curve only needs to consider a strip shape control target for the follow-up process requirement; an on-line strip shape target curve is built on the basis of a quartic Legendre polynomial, the self-balanced constraint condition requirement (that is, the transverse integration in the width direction of the strip is zero) of the residual stress deviation of the rolled strip in the width direction of the strip is met, the target is clear, and the function is explicit; and a target strip shape standard curve library is built on the basis of an intelligent algorithm, the optimal parameter of the on-line target strip shape is obtained, and the control precision of the strip shape is ensured.

Description

technical field [0001] The present invention relates to the field of automatic measurement of rolling strip machinery and equipment, in particular to an intelligent setting method for on-line target shape of cold-rolled strip, the method is suitable for cold-rolled strip, aluminum strip, copper strip and other strip products Shape control target. Background technique [0002] With the rapid development of rolling theory and steel rolling technology, the strip tends to be wider and thinner. Therefore, the flatness problem is becoming more and more prominent and complex, and the research on flatness control theory and regulation technology is constantly updated and improved. . The key to flatness closed-loop control lies in the real-time detection of high-sensitivity online flatness signals, the target flatness curve considering actual working conditions, and a stable and reliable high-precision flatness control model. The original flatness signal is the basis and premise, an...

Claims

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Application Information

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IPC IPC(8): B21B37/28B21B38/00
CPCB21B37/28B21B38/00
Inventor 杨利坡于华鑫张永顺于丙强李荣民
Owner 河北燕赵蓝天板业集团有限责任公司
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