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Control method and system for plate type of hot-rolled plate

A technology of shape control and control method, applied in the direction of contour control and so on

Active Publication Date: 2013-12-18
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a hot-rolled strip shape control method and system that can solve the problem of local bulging of the hot-rolled strip

Method used

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  • Control method and system for plate type of hot-rolled plate

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Embodiment Construction

[0013] The method and system for controlling the profile of a hot-rolled strip provided in the embodiments of the present invention are implemented based on a profile control system of a hot-rolled profile (such as a PCFC profile control system or a PFC profile control system) in the CVC work roll profile control mode of. The hot-rolled strip shape control system based on CVC work rolls includes shape calculation models, actuators (such as roll bending and roll shifting systems), flatness meters and crown meters. The control process is as follows: according to the target shape of the product value and CVC can continuously change the characteristics of the roll shape, the model calculates the roll bending value and roll shifting value, and sends it to the actuator for execution, and continuously optimizes the control parameters according to the measured values ​​of the flatness meter and crown meter to achieve a closed loop Control belongs to known technology. In the field of ...

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Abstract

The invention relates to the technical field of hot rolling and particularly relates to a control method and system for the plate type of a hot-rolled plate. The control method comprises the following steps that roll bending values are set into a group of values with periodic changes in the control system for the plate type of the hot-rolled plate, and a control model of the hot-rolled plate determines a group of roll stringing values with changes according to the roll bending values; the roll bending values and the roll stringing values are used as control data of the control system for the plate type of the hot-rolled plate to realize control on the plate type of the hot-rolled plate. The system comprises a data setting unit, a data determination unit and a control unit. The control method and the system for the plate type of the hot-rolled plate provided by the invention have the advantages that the step-length adjusting amplitude in roll stringing is larger, and the problem that the local part of the hot-rolled plate is protruded due to small step-length adjusting amplitude in roll stringing is solved.

Description

technical field [0001] The invention relates to the technical field of hot rolling, in particular to a method and system for controlling the shape of a hot-rolled plate. Background technique [0002] Hot-rolled sheet is a commonly used industrial material. At present, the most commonly used hot-rolled sheet shape control systems in iron and steel enterprises mainly include the PCFC shape control system of SMS Company and the PFC shape control system of TMEIC Company. The common feature of these systems is the finish rolling All or part of the unit uses CVC work roll profile, and the roll bending control strategy adopts a fixed value method. A fixed roll bending value is set in the profile control system, and then a fixed value is automatically calculated by the profile control system. The string roll value. Since the roll skew value is constant, the small adjustment range of the roll shifting step under this control strategy results in local bulging of the hot-rolled produc...

Claims

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Application Information

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IPC IPC(8): B21B37/28
Inventor 张敏王松涛王文广黄爽周政张杰
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD