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Method of raising response frequency of high pressure servo system in rolling machine

A technology of servo system and response frequency, which is applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., can solve the problem of restricting the response frequency of the rolling mill servo system, and achieve the effect of increasing the response frequency and increasing the frequency

Inactive Publication Date: 2009-02-11
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hose connection between the system and the pressing cylinder largely restricts the improvement of the response frequency of the mill servo system

Method used

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  • Method of raising response frequency of high pressure servo system in rolling machine
  • Method of raising response frequency of high pressure servo system in rolling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Such as figure 1 , figure 2 As shown, a method for improving the response frequency of the high-pressure servo system of the rolling mill, in the high-pressure servo system of the high-speed tandem cold rolling mill, a steel pipe 6 is added to the high-pressure hose 5 connecting the pressing cylinder valve table 1 and the pressing cylinder 3, Steel pipe thickness 3mm. The high-voltage servo system of the high-speed tandem cold rolling mill referred to in the present invention is a known technology.

Embodiment 2

[0014] Such as figure 1 , figure 2 As shown, a method for improving the response frequency of the high-pressure servo system of the rolling mill, in the high-pressure servo system of the high-speed tandem cold rolling mill, a steel pipe 6 is added to the high-pressure hose 5 connecting the pressing cylinder valve table 1 and the pressing cylinder 3, Steel pipe thickness 4mm.

Embodiment 3

[0016] Such as figure 1 , figure 2 As shown, a method for improving the response frequency of the high-pressure servo system of the rolling mill, in the high-pressure servo system of the high-speed tandem cold rolling mill, a steel pipe 6 is added to the high-pressure hose 5 connecting the pressing cylinder valve table 1 and the pressing cylinder 3, Steel pipe thickness 5mm.

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Abstract

The present invention relates to method of raising response frequency of high pressure servo system in rolling machine. In the high pressure servo system of high speed cooling continuous rolling machine, one 3-5 mm thick steel pipe is used to jacket the high pressure hose connecting the screwdown cylinder and its valve stand. The method can raise the response frequency of high pressure servo system in rolling machine.

Description

technical field [0001] The invention relates to a method for increasing the response frequency of a rolling mill high-voltage servo system, which is applied to a hydraulic servo system that needs to increase the system response frequency, especially a rolling mill hydraulic pressing system with high-frequency flutter. Background technique [0002] The rolling speed of modern cold tandem mills is generally between 1500m / min and 3000m / min. At the same time, the requirements for strip thickness accuracy are also increasing. For high-speed rolling cold tandem mills, there are many factors that affect the thickness accuracy of the strip, but among the various factors, the high-voltage servo system of the rolling mill that directly regulates the thickness accuracy of the strip has the greatest impact. [0003] In the high-voltage servo system of the rolling mill, the response frequency of the system is a key factor affecting the rolling thickness accuracy of the high-speed rolling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/32
Inventor 于志行陈行忠贺文健闵威丁文红
Owner WISDRI ENG & RES INC LTD
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