Automatic flattening process parameter optimization of metal plate band

A technology of process parameters and metal strips, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of product flatness that cannot meet the requirements, deviations, etc.

Inactive Publication Date: 2006-08-16
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0003] The present invention aims at the complexity of the strip straightening process in the prior art and is easily affected by factors such as bounce, wear, and bearing clearance of the straightening machine itself. Deviation, which leads to the problem that the flatness of the product cannot meet the requirements, provide

Method used

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  • Automatic flattening process parameter optimization of metal plate band
  • Automatic flattening process parameter optimization of metal plate band
  • Automatic flattening process parameter optimization of metal plate band

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Embodiment Construction

[0130] This embodiment is used to illustrate the present invention, but not to limit the present invention.

[0131] The method described in the present invention has been successfully applied to the 3500mm medium plate straightening machine of Shougang Medium Plate Plant. The difference between the average value of the measured straightening force and the calculated value is less than ±5%, and the residual curvature of the product is less than the specified requirement.

[0132] Take steel type 345D as an example, with a thickness of 60mm, a width of 2350mm, and a processing temperature of 681°C. Theoretical setting value of the straightening machine: the entrance roll gap is 59.01mm (the thickness of the sheet minus the reduction of the second straightening roller), the exit roll gap is 59.21mm (the thickness of the sheet minus the penultimate straightening roller), and the theoretical straightening The force calculation P=7336KN, the straightening force measured by the for...

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Abstract

The invention belongs to the metal sheet and strap straighten technology field, which is a technical parameter optimizing method of straightening the metal sheet and strap automatically. The existing technology is complexity during the process of the straighten of the sheet and strap, the effect factors of straightener such as bounce, abrasion and clearance of axletree etc, more wrap of the technical initialization between the theoretic calculation and factual operation that lead the request about the flat and straight of the production can not be satisfied. The invention is making the least optimizing process for the difference of the theoretic value and the fact measure value, that is correcting the undetermined variable in the theoretic calculating formulary of the straighten force - regressive coefficient a0, a1, a2, a3, a4, a5, a6, a7, that is the nearest value between the theoretic value and the fact measure value. The method of the invention can setup the technical parameter automatically, improve the quality and the efficiency of straighten, the online system base on the invention has successful apply on the 3500 millimeters thick sheet straightener, the average value of the measure straighten force is discrepance smaller +5% with the calculation value, the remnants curvature of the production is less than 1.5mm/m.

Description

technical field [0001] The invention belongs to the technical field of straightening metal strips, in particular to an optimization method for automatic straightening process parameters of metal strips. Background technique [0002] The purpose of straightening metal strips is to obtain finished products with high flatness. In order to obtain a plate shape that meets the quality requirements, it is necessary to accurately set its process parameters. However, due to the complexity of the strip straightening process and the fact that it is easily affected by factors such as bounce, wear, and bearing clearance of the straightening machine itself, there is a large deviation between the theoretical calculation process setting value and the actual operation, resulting in unsatisfactory product flatness. fulfil requirements. Contents of the invention [0003] The present invention aims at the complexity of the strip straightening process in the prior art and is easily affected ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 黄庆学王效岗李玉贵孙斌煜
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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