Steel plate thickness controlling method and device

A technology of thickness control and steel plate, applied in the direction of rolling mill control device, metal rolling, manufacturing tools, etc., to achieve the effect of improving the accuracy of thickness control

Active Publication Date: 2019-09-20
MCC CAPITAL ENGINEERING & RESEARCH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The main purpose of the present invention is to provide a steel plate thickness control method and device to solve the influence of the thickness gauge measurement lag on the thickness control algorithm and improve the thickness control accuracy

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  • Steel plate thickness controlling method and device
  • Steel plate thickness controlling method and device
  • Steel plate thickness controlling method and device

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0053] Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware as...

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Abstract

The invention discloses a steel plate thickness controlling method and device. The steel plate thickness controlling method comprises the steps that the roll gap correction amount is determined according to steel plate outlet thickness deviation; the roll gap correction amount and an output of a second simulator are superposed to be used as output of a feedback AGC and input of a first simulator, and the output of the first simulator is used as input of the second simulator, wherein the first simulator is used for simulating the roll gap position ring characteristic, and the second simulator is used for simulating the hysteresis characteristic that strip steel moves to the position below a thickness gauge from a rolling mill; according to the feedback AGC output, steel plate thickness control is conducted. The steel plate thickness controlling method and device solve the influence of measurement hysteresis of the thickness gauge on a thickness control algorithm, and the thickness control precision is improved.

Description

technical field [0001] The invention relates to the field of automatic control of steel rolling, in particular to a method and device for controlling the thickness of a steel plate. Background technique [0002] Now, the market competition is fierce, and users have put forward more and more strict standards for the precision of plate products. At the same time, improving product precision is also conducive to reducing costs and occupying a favorable position in the market. The automatic thickness control (Automatic GaugeControl, AGC) plays a decisive role in improving the thickness accuracy of the product. [0003] The production of thin steel plates generally includes two types of production processes: hot-rolled steel plates and cold-rolled steel plates. In order to improve the thickness control accuracy of the steel plate, a thickness gauge is generally installed in the exit direction of the steel plate rolling to measure the thickness of the steel plate in real time. W...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/16
CPCB21B37/16
Inventor 王云波张兴起
Owner MCC CAPITAL ENGINEERING & RESEARCH
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