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Method and device for synchro controlling high precision screwdown at two side during rolling steel plate

A high-precision synchronous and synchronous control technology, applied in rolling mill control devices, hydraulic program control, metal rolling, etc., can solve problems such as reduction speed errors

Inactive Publication Date: 2007-07-25
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Although the domestic hot rolling technology level is constantly improving, the reduction speed error on both sides of 0.2mm / s is still far from being competent and meeting the needs for the production of rolled thin or ultra-thin plates! Aiming at the error problem of the rolling speed of the rolls on both sides of the plate, we carried out experiments and research, invented a high-precision synchronous control method for the hydraulic pressing speed on both sides of the rolling plate, and developed a hydraulic pressing speed on both sides of the rolling plate in the finishing mill High precision synchronous control device

Method used

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  • Method and device for synchro controlling high precision screwdown at two side during rolling steel plate
  • Method and device for synchro controlling high precision screwdown at two side during rolling steel plate
  • Method and device for synchro controlling high precision screwdown at two side during rolling steel plate

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Embodiment 1

[0024] Embodiment 1. High-precision pressing synchronous control method and device on both sides of the rolled plate

[0025] The technical content of this embodiment includes two parts: one is the high-precision pressing synchronous control device on both sides of the rolling plate, and the other is the high-precision pressing synchronous control method on both sides of the rolling plate.

[0026] 1. High-precision pressing synchronous control device on both sides of the rolled plate

[0027] The specific structure of the high-precision reduction synchronous control device on both sides of the rolled plate in this example is jointly shown in Figures 1 to 3. The technical features of the control device are: the high-precision pressing synchronous control device on both sides of the rolling plate in this example is the same two sets of two-stage high-precision pressing speed control mechanisms arranged on the hydraulic mechanisms on both sides of the rolling plate, and the two ...

Embodiment 2

[0031] Embodiment 2. High-precision pressing synchronous control method and device on both sides of the rolled plate

[0032] The technical content of this embodiment includes two parts: one is the high-precision pressing synchronous control device on both sides of the rolling plate, and the other is the high-precision pressing synchronous control method on both sides of the rolling plate.

[0033] 1. High-precision pressing synchronous control device on both sides of the rolled plate

[0034] The general structure of the high-precision reduction synchronous control device on both sides of the rolled plate in this example can be seen in Figures 1 to 3. The difference is: 1. It is set on both sides of the rolled plate to press and control each mechanism with high precision, including two sets of electronic mechanisms with the same structure of the hydraulic mechanism, servo mechanism, action mechanism and two sets of reference control mechanisms of the computer control mechanis...

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Abstract

A method for controlling the high-precision synchronous press-down at both sides of rolled plate features that a technique for high-precision two-stage synchronous control to press-down speed and the in-line real-time computer control to automatic complementary linkage of high-precision synchronizing are used. Its apparatus is composed of two high-precision two-stage press-down speed controlling mechanisms with hydraulic mechanism, computer, push-pull switching circuit and electro-hydraulic servo valve.

Description

1. Technical field [0001] The invention discloses a method for synchronously controlling high-precision pressing on both sides of a rolled plate and a device thereof, which belong to the technical field of hot-rolled steel control, and specifically relates to a method and a device for synchronously controlling high-precision pressing on both sides of a hot continuous rolling mill. 2. Background technology [0002] In the production of steel rolling, the rolling quality of the hot-rolled plate in the finishing mill, such as the flatness of the plate surface, the uniformity of thickness, etc., depends on the pressure of the rolls on both sides of the hot-rolled plate and its reduction speed and thickness. Control accuracy and control stability and reliability. According to relevant information: Domestic situation: the error of the rolling speed of the rolls on both sides of the plate was 0.5mm / second in 1992 and 0.2mm / second in 1997. Although the domestic hot rolling technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00G05B19/02G05B15/02G05B19/46
Inventor 卢权观
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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