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Plate-shape control integrated system and executing method thereof

A shape control and integrated system technology, applied in contour control, electrical program control, program control in sequence/logic controller, etc., can solve difficult shape problems that cannot be obtained, analyzed and solved , did not consider issues such as

Active Publication Date: 2010-01-13
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it can only analyze and solve relatively simple shape problems, but cannot comprehensively and optimally analyze and solve difficult shape problems
For example, for the problem of plate shape setting control, the current general method is to integrate the plastic deformation module of the rolled piece with the elastic deformation module of the roll system, and then perform optimization calculations according to a certain goal. This method can generally solve the problem to a certain extent. but not the optimal solution
This is because the hot roll shape and the worn roll shape of the roll are not considered in the optimization calculation. The result is that the control effect of the initial setting of the roll on the machine is better, and the comprehensive roll shape of the roll continues to occur as the rolling process continues. As a result, the production practice gradually deviates from the ideal state, and the effect of the initial plate shape setting parameters gradually deteriorates.

Method used

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  • Plate-shape control integrated system and executing method thereof
  • Plate-shape control integrated system and executing method thereof
  • Plate-shape control integrated system and executing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0168] This example illustrates how to use the present invention to analyze the shape control performance and select the model. Firstly, given the specific machine type, the specific flatness control means that need to be analyzed for flatness control performance are specified. Taking a six-stand full four-high CVC hot tandem rolling mill as an example, the shape control performance of work roll bending force is analyzed.

[0169] The 1st step, carry out step 1), establish the continuous rolling mill coordinate system;

[0170] Step 2, execute step 2), after the execution, con1=2, con2 i =2 (i=1~6), con3=2, con4=1;

[0171] Step 3, execute step 3), collect relevant input parameters;

[0172] Step 4, since con1=2, step 4) is automatically skipped, and step 5) is executed to couple the plastic deformation module 1 of the rolled piece and the elastic deformation module 2 of the roll system to obtain the flatness and thickness lateral distribution of the exit of each stand σ ...

no. 2 example

[0177] Taking a six-stand all-ordinary four-high hot continuous rolling mill (without work roll bending function) as an example, it is explained how to use the present invention to carry out back-up rolls with the aim of optimizing the shape of some old rolling mills that lack shape control means. type optimization design. In order to simplify the process management of grinding rollers and improve the efficiency of grinding rollers in general production sites, it is hoped that the supporting rollers of each frame adopt the same roller shape. Therefore, the original grinding roll shape of each frame is uniformly represented by the following formula: C bgi (y)=c 2 (2y / L bi ) 2 +c 4 (2y / L bi ) 4 +c 6 (2y / L bi ) 6 (i=1~6), wherein, C bgi The original grinding roll shape of the support roll of each frame, L bi is the body length of the supporting rollers of each frame, c 2 、c 4 、c 6 Support roll profile characteristic parameters. The goal of roll shape optimization i...

no. 3 example

[0185] Taking a five-stand full UCM tandem cold rolling mill as an example, this example illustrates how to use the present invention to carry out on-line setting control of strip shape. The specific plate shape control parameters that need to be set include the bending force S of the work rolls of 1 to 5 stands 11 j ~S 15 j , The bending force S of the middle roll of 1~5 racks 21 j ~S 25 j 、Roll shifting amount RS of intermediate rolls of 1~5 racks m1 j ~RS m5 j . The specific calculation process is given below:

[0186] The 1st step, carry out step 1), establish the continuous rolling mill coordinate system;

[0187] Step 2, execute step 2), after execution con1=3, con2 i =2 (i=1~6), con3=1, con4=3;

[0188] Step 3, execute step 3), collect relevant input parameters;

[0189] Step 4, perform step 4), calculate the strip temperature field according to the rolled piece and roll temperature field module 3, and calculate the average deformation resistance of each ...

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Abstract

The invention provides an integrated method of a plate-shape control system of a plate-strip cold and hot continuous rolling machine. The plate-shape control system comprises a rolled piece plastic-distortion module, a roller-system elastic-distortion module, a rolled piece and roller temperature field module, a roller-system abrasion module, a flatness well-recognition module, a plate-shaped mode recognition module, a plate-shape standard curve module and a plate-shape control module. The invention integrates all modules according to internal relations, can solve a plurality of plate-shape control problems comprehensively and optimally, adopts a set of calculating flows in actual application and effects saves the labor time.

Description

technical field [0001] The invention relates to an analysis and control technology of a strip rolling process, in particular to an integrated system of strip shape control and an execution method of the integrated system. Background technique [0002] Strip is the main product of the steel industry, and most of the "high-quality goods" in steel products are strip products. The strip ratio is an important symbol to measure the level of a country's metallurgical industry. At present, the strip ratio in advanced countries in the world has reached 65-70%, which is more than 20% higher than that in our country. Therefore, there is still a lot of room for development in our country's strip production. Flatness is an important quality index of strips, and flatness control technology is the core technology of strip mills. There are dozens of sets of strip rolling mills in my country, and the overall level of flatness control technology is relatively backward compared with the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28G05B19/04
Inventor 刘宏民彭艳王东城杨利坡孙亚波
Owner YANSHAN UNIV
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