Roller abrasion mathematical model optimizing method for improving CSP product quality

A mathematical model and optimization method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of poor shape quality, large difference, affecting the production of high-proportion thin-gauge hot-rolled sheets, etc., to achieve enhanced Stabilizing, quality-enhancing effects

Inactive Publication Date: 2008-04-09
GUANGZHOU PEARL RIVER STEEL & IRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the changes in the production rhythm of single and double streams and the ratio of rolling specifications, the parameters of the original roll wear mathematical model cannot meet the needs of production, and there is a large difference between the roll wear value calculated by the model and the actual wear value of the roll, resulting in strip head The shape quality of the strip and the tail is poor, and the quality of the strip steel products with a thickness of ≤2.0mm is difficult to guarantee, which seriously affects the production of high-proportion thin-gauge hot-rolled sheets

Method used

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  • Roller abrasion mathematical model optimizing method for improving CSP product quality

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1 comprises the steps:

[0024] (1) First of all, it is single-stream production, and the parameter values ​​of the mathematical model of roll wear selected by each stand are shown in Table 4.

[0025] Table 4 Parameter values ​​of the mathematical model of roll wear in each stand

[0026] rack

[0027] (2) After a period of time, single-stream production is transformed into dual-stream production. The parameter values ​​of the mathematical model of roll wear selected by each stand are automatically converted from single-stream data to dual-stream data. The parameter values ​​of the mathematical model of roll wear for each stand are shown in Table 5. Show.

[0028] Table 5 Parameter values ​​of the mathematical model of roll wear in each stand

[0029] rack

[0030] In Example 1, the rolling steel type is SPA-H, the specification is 1.6×1180mm, the weight of a single coil is 20 tons, and the statistical data is 100 coils. shown. It can...

Embodiment 2

[0031] Embodiment 2 is another embodiment of the present invention, and the relevant differences between this embodiment and Embodiment 1 specifically include the following aspects:

[0032] (1) The first is double-flow production, and the parameter values ​​of the mathematical model of roll wear selected by each stand are shown in Table 6.

[0033] Table 6 Parameter values ​​of the mathematical model of roll wear in each stand

[0034] rack

[0035] (2) After a period of time, the double-stream production is transformed into single-stream production. The parameter values ​​of the mathematical model of roll wear degree selected by each stand are automatically converted from the double-stream data to the parameters of the single-stream model. The parameter values ​​of the mathematical model of roll wear for each stand are shown in the table 7.

[0036] Table 7 Parameter values ​​of the mathematical model of roll wear in each stand

[0037] rack

[0038] In...

Embodiment 3

[0039] Embodiment 3 is the 3rd embodiment of the present invention, and the relevant difference in this embodiment and embodiment 1 and embodiment 2 specifically includes the following aspects:

[0040] (1) The first is double-stream production, and the parameter values ​​of the mathematical model of roll wear selected by each stand are shown in Table 8.

[0041] Table 8 Parameter values ​​of the mathematical model of roll wear in each stand

[0042] rack

[0043] (2) After a period of time, the double-stream production is transformed into single-stream production. The parameter values ​​of the mathematical model of roll wear degree selected by each stand are automatically converted from the double-stream data to the parameters of the single-stream model. The parameter values ​​of the mathematical model of roll wear for each stand are shown in the table 9.

[0044] Table 9 Parameter values ​​of the mathematical model of roll wear in each stand

[0045] rac...

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Abstract

The invention discloses a roll-wear mathematical-model optimization method for improving CSP product quality. The method uses two sets of data for the thin-slab continuous casting and rolling flow of the single and the double flow production and for all frame roll-wear mathematical-model parameters in a flatness control system of a plate mill, and is able to automatically distinguish and select according to the single and the double flow production, and then under the single or the double flow production state, the calculated value and the actual value of roll wear are relatively identical, acquiring strips of the improved quality, enhancing production efficiency and rolling yield, and boosting high-proportion thin-gauge hot rolling plate production.

Description

technical field [0001] The invention relates to a method for optimizing the mathematical model of roll wear for improving the product quality of CSP (Compact Strip Production Process). Background technique [0002] In order to improve strip shape quality, increase productivity and yield, traditional hot rolling and thin slab continuous casting and rolling processes generally add a shape control system to the rolling mill. Since the wear of the roll cannot be measured online, the flatness control system calculates it through the wear calculation model of the roll. The deviation between the roll wear value calculated by the model and the actual value directly affects the rolling stability and strip shape quality. [0003] When the parameters of the mathematical model of roll wear provided by the foreign party are used, when the strip below 2.0mm is rolled, the roll wear curve calculated by the flatness system simulation and the actual wear curve of the roll are quite differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 林育耿侯宇建童红飞
Owner GUANGZHOU PEARL RIVER STEEL & IRON
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