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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: 2010-12-08
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • 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 synchronous control method and device for pressing both sides of rolled plate

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

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

[0027] The specific structure of the synchronous control device for high-precision reduction on both sides of the rolled plate in this example is determined by Figure 1 ~ Figure 3 It is jointly shown that the device is a high-precision reduction speed synchronous control device installed on the hydraulic mechanisms on both sides of the rolling plate of the finishing mill. The technical feature is: the high-precision reduction synchronous control device on both sides of the rolled plate in this example is insta...

Embodiment 2

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

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

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

[0034] The general structure of the synchronous control device for high-precision reduction on both sides of the rolled plate in this example can be found in Figure 1 ~ Figure 3 , This example of the high-precision reduction speed synchronous control device on both sides of the rolled plate is different from that in Example 1. 1. It is installed on both sides of the rolled plate to synchronously control the various mechanisms, including the hydraulic mechanism. Two sets of electronic mechanism, servo 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 high-precision synchronous control method and device for pressing down both sides of a rolled plate, which belongs to the technical field of hot-rolled steel control, and specifically relates to a high-precision synchronous control method and device for both sides of a hot continuous rolling mill plate. 2. Background technology [0002] In the rolling production, the rolling quality of the hot strip of 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 strip and its reduction speed and thickness Control accuracy and control stability and reliability. According to relevant information: Domestic situation: The error of the rolling reduction speed on both sides of the plate was 0.5mm / sec in 1992 and 0.2mm / sec in 1997. Although the domestic hot rolling technology level is constantly improving, the 0.2mm / sec two-side reductio...

Claims

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Application Information

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