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Control method and device for thin-strip continuous casting side sealing pressing mechanism

A technology of a pressing mechanism and a control method, applied in the field of metallurgy

Active Publication Date: 2021-01-22
NORTHEASTERN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a control method and device for the thin strip continuous casting side seal pressing mechanism, the main purpose of which is to solve the problem of the thin strip continuous casting side seal pressing mechanism in the prior art during the process of pressing the side sealing plate. , it is not possible to ensure no steel leakage between the side sealing plate and the continuous casting molten pool, and to reduce the wear speed of the side sealing plate as much as possible

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  • Control method and device for thin-strip continuous casting side sealing pressing mechanism
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  • Control method and device for thin-strip continuous casting side sealing pressing mechanism

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[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] In the thin strip continuous casting production process, the effect of the side seal is mainly affected by the material of the side seal plate itself, the relative position between the side seal plate and the crystallization roller, and the force transmission mode of the side seal mechanism. As long as it is greater than the minimum pressing force allowed by the side seal, the size of the pressing force has no obvious effect ...

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Abstract

The invention discloses a control method and device for a thin-strip continuous casting side sealing pressing mechanism, relates to the technical field of metallurgy, and aims to solve the problems that in the prior art, in the process that a thin-strip continuous casting side sealing pressing mechanism presses a side sealing plate, the conditions of guaranteeing avoiding of liquid leakage betweenthe side sealing plate and a continuous casting molten pool, reducing the abrasion speed of the side sealing plate as much as possible, and prolonging the pouring time as much as possible cannot be achieved. The method mainly comprises the steps that the real-time pressing force of the side sealing plate is detected; if the real-time pressing force is not smaller than a preset pressing force threshold value, the dynamic opening degree of a servo valve is calculated according to an opening degree PID control algorithm, and the dynamic opening degree is sent to the servo valve; the current cylinder rod displacement of an oil cylinder is obtained; the current wear rate of the current cylinder rod displacement is calculated; according to the pressing force PID control algorithm, the target pressing force of the side sealing plate is calculated; and the dynamic opening degree of the servo valve is calculated according to the opening degree PID control algorithm, and the dynamic opening degree is sent to the servo valve. The method is mainly applied to the thin-strip continuous casting pouring process.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a control method and device for a thin strip continuous casting side sealing and pressing mechanism. Background technique [0002] Thin strip continuous casting is to directly cast and roll liquid steel into a thin strip with a thickness of less than 5mm, and only need one or two hot rolling passes before it can be coiled into hot rolled coils by a coiler. In the thin strip continuous casting process, in order to prevent the molten steel stored between the crystallization rollers from leaking from the edge and ensure the high stability of the continuous casting molten pool, it is necessary to use two side sealing plates to block both ends of the continuous casting molten pool. There is a certain contact between the sealing plate and the end face of the crystallization roller, and the side sealing plate is constantly worn during the rotation of the crystallization roller. If t...

Claims

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Application Information

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IPC IPC(8): B22D11/06B22D11/18
CPCB22D11/0622B22D11/0637B22D11/18
Inventor 李振垒袁国张元祥康健汤洋张晓明王黎筠王国栋
Owner NORTHEASTERN UNIV
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