CN100498805C - Roller abrasion mathematical model optimizing method for improving CSP product quality - Google Patents
Roller abrasion mathematical model optimizing method for improving CSP product quality Download PDFInfo
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- CN100498805C CN100498805C CNB2007100313006A CN200710031300A CN100498805C CN 100498805 C CN100498805 C CN 100498805C CN B2007100313006 A CNB2007100313006 A CN B2007100313006A CN 200710031300 A CN200710031300 A CN 200710031300A CN 100498805 C CN100498805 C CN 100498805C
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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
The present invention relates to the roll wear mathematical model optimizing method of a kind of CSP of improvement (close-coupled band steel production technology) product quality.
Background technology
For improving the belt plate shape quality, to boost productivity and lumber recovery, traditional hot tandem rolling and bar strip continuous casting and rolling flow path are generally set up plat control system at milling train.Because the wearing and tearing of roll can't on-line measurement, plat control system calculates Model Calculation by the wearing and tearing of roll and obtains.The roll wear value of Model Calculation and the deviation size of actual value, the directly stable and belt plate shape quality of influence of rolled.
When the roll wear mathematical model parameter that adopts foreign side to provide, when the following strip of rolling 2.0mm, the roll wear curve of plate shape systematic simulation calculation and roll actual wear curve differ bigger, cause the precomputation values such as CVC, Bend_Force of plate shape secondary machine system-computed inaccurate, strip is difficult to control, and band steel toe overtaking wave shape is obvious.In addition because the accumulative total effect of roll wear analog computation error, increasing when the tonnage number of roll, when plate shape secondary machine system surpassed to a certain degree to the departure of strip, plate shape secondary machine system can't carry out the most basic control to strip.
And the rhythm of roll wear and production, cooling water inflow and water temperature, rolling specs, roll material etc. are closely related.The wearing and tearing mathematical model parameter of roll is a steady state value in the plat control system that foreign side provides, and design only adapts to single current production.Variation along with single double-current rhythm of production and rolling specs ratio etc., the wearing and tearing mathematical model parameter of former roll can not satisfy the demand of production, exist the roll wear value of Model Calculation and the attrition value of roll reality to differ bigger, cause being with steel toe portion and afterbody strip shape quality relatively poor, the following belt steel product strip shape quality of thickness≤2.0mm is difficult to guarantee, has a strong impact on the production of thin size hot-rolled plate at high proportion.Each breast roller wearing and tearing mathematics model parameter value that foreign side provides is as shown in table 1.
Table 1 roll wear mathematical model parameter value
Summary of the invention
The roll wear mathematical model optimizing method that the purpose of this invention is to provide a kind of CSP of improvement product quality, be that each breast roller wearing and tearing mathematical model parameter adapts to single current respectively automatically and double fluid is produced, the belt plate shape quality is improved, enhance productivity and lumber recovery, promote effects such as thin size hot-rolled plate production at high proportion.
Purpose of the present invention is achieved by taking following technical measures:
A kind of roll wear mathematical model optimizing method that improves the CSP product quality, it is characterized in that under single current and double-current rolling mode, respectively the firm roll of milling train is down carried out wear measurement with the roll shape instrument, the line data analysis of going forward side by side, gather a large amount of wearing and tearing raw data, the data that collect are analyzed with analysis tool, the final roll wear curve map that forms, and the roll wear curve map uploaded to plate shape secondary machine offline optimization system, in plate shape secondary machine offline optimization system to this roll in the rolling cycle rolling band steel carry out re-computation, roll wear curve map that is calculated and the curve map of uploading are compared, regulate the roll wear mathematical model parameter then, re-computation again, until wear curve figure that the wear curve figure and the hand dipping of plate shape secondary machine offline optimization system-computed forms as far as possible near or overlap till, when
When (1) single current was produced, each breast roller wearing and tearing mathematics model parameter value was as shown in table 2;
Each breast roller wearing and tearing mathematics model parameter value (single current) of table 2
| Frame | F1 | F2 | F3 |
| Parameter value | 0.000032-0.000038 | 0.000038-0.000043 | 0.000032-0.000036 |
| Frame | F4 | F5 | F6 |
| Parameter value | 0.00033-0.00040 | 0.00021-0.00028 | 0.00016-0.00023 |
When (2) double fluid was produced, each breast roller wearing and tearing mathematics model parameter value was as shown in table 3.
Each breast roller wearing and tearing mathematics model parameter value (two stream) of table 3
| Frame | F1 | F2 | F3 |
| Parameter value | 0.000045-0.000052 | 0.000048-0.000053 | 0.000042-0.000049 |
| Frame | F4 | F5 | F6 |
| Parameter value | 0.00045-0.00053 | 0.00035-0.00041 | 0.00029-0.00036 |
When single current is produced among the present invention, each breast roller wearing and tearing mathematics model parameter value adopts as table 2 data, be that each breast roller attrition value for Model Calculation conforms to actual value, obtain the stable and belt plate shape quality preferably of the especially thin specification belt steel rolling of band steel.
When double fluid was produced among the present invention, each breast roller wearing and tearing mathematics model parameter value adopted as table 3 data, was that each the breast roller attrition value for Model Calculation conforms to actual value, and it is good to obtain rolling thin specification belt plate shape quality, and production such as stablizes at effect.
Compared with prior art, the present invention has following advantage: for the bar strip continuous casting and rolling flow path of single, double stream production, each breast roller wearing and tearing mathematical model parameter adopts two sets of data in the milling train plat control system, and can differentiate automatically according to the production of single, double stream and select for use, thereby make under single current or double-current production status, the roll wear calculated value all conforms to actual value, has reached to strengthen rolling stablely and to the control of belt plate shape, has improved the quality of product.
Description of drawings
Fig. 1 is that the optimization front and back band steel flatness of the embodiment of the invention 1 compares synoptic diagram;
Fig. 2 is that the optimization front and back band steel flatness of the embodiment of the invention 2 compares synoptic diagram;
Fig. 3 is that the optimization front and back band steel flatness of the embodiment of the invention 3 compares synoptic diagram.
Embodiment
The present invention specifically is implemented on bar strip continuous casting and rolling flow path 6 frame continuous hot-rolling mills, double fluid or single current production, the slab thickness that adopts is 50～60mm, width of plate slab is 1000～1350mm, and the slab tapping temperature is 1050～1180 ℃, and belt steel thickness is 1.2～12.7mm, the roller of backing roll directly is 1250～1350mm, barrel length is 1500mm, and the roller of working roll directly is 720～800mm, and barrel length is 1700mm.
Embodiment 1 comprises the steps:
(1) at first be single current production, the roll wear mathematical model parameter value that each frame is selected for use is as shown in table 4.
Each breast roller wearing and tearing mathematics model parameter value of table 4
| Frame | F1 | F2 | F3 | F4 | F5 | F6 |
| Parameter value | 0.000032 | 0.000038 | 0.000032 | 0.00033 | 0.00021 | 0.00016 |
(2) single current changes double fluid production into after producing a period of time, and the roll wear mathematical model parameter value that each frame is selected for use is automatically converted to double-current data by the single current data, and the roll wear mathematical model parameter value of each frame conversion is as shown in table 5.
Each breast roller wearing and tearing mathematics model parameter value of table 5
Present embodiment 1 rolling steel grade is SPA-H, and specification is 1.6 * 1180mm, and monovolume heavily is 20 tons, and statistics is 100 volumes, optimize front and back band steel head and afterbody flatness mean value more as shown in Figure 1.As shown in Figure 1, the band steel plate shape be improved significantly.
Embodiment 2 is an alternative embodiment of the invention, and relevant difference specifically comprises following aspect among this embodiment and the embodiment 1:
(1) at first be double fluid production, the roll wear mathematical model parameter value that each frame is selected for use is as shown in table 6.
Each breast roller wearing and tearing mathematics model parameter value of table 6
(2) double fluid changes single current production into after producing a period of time, and the roll wear number of degrees that each frame is selected for use are learned model parameter value and are automatically converted to the uniflow model parameter by double-current data, and the roll wear mathematical model parameter value of each frame conversion is as shown in table 7.
Each breast roller wearing and tearing mathematics model parameter value of table 7
Present embodiment 2 rolling steel grades are SS330, and specification is 1.5 * 1250mm, and monovolume heavily is 20 tons, and statistics is 100 volumes, optimize front and back band steel head and afterbody flatness mean value more as shown in Figure 2.As shown in Figure 2, the band steel strip shape quality be improved significantly.
Embodiment 3 is the 3rd embodiment of the present invention, and relevant difference specifically comprises following aspect among this embodiment and embodiment 1 and the embodiment 2:
(1) at first be double fluid production, the roll wear mathematical model parameter value that each frame is selected for use is as shown in table 8.
Each breast roller wearing and tearing mathematics model parameter value of table 8
(2) double fluid changes single current production into after producing a period of time, and the roll wear number of degrees that each frame is selected for use are learned model parameter value and are automatically converted to the uniflow model parameter by double-current data, and the roll wear mathematical model parameter value of each frame conversion is as shown in table 9.
Each breast roller wearing and tearing mathematics model parameter value of table 9
Present embodiment 3 rolling steel grades are SPA-H, and specification is 1.6 * 1125mm, and monovolume heavily is 20 tons, and statistics is 100 volumes, optimize front and back band steel head and afterbody flatness mean value more as shown in Figure 3.As shown in Figure 3, the band steel strip shape quality be improved significantly.
Claims (1)
1, a kind of roll wear mathematical model optimizing method that improves the CSP product quality, it is characterized in that: under single current and double-current rolling mode, respectively the firm roll of milling train is down carried out wear measurement with the roll shape instrument, the line data analysis of going forward side by side, gather a large amount of wearing and tearing raw data, the data that collect are analyzed with analysis tool, the final roll wear curve map that forms, and the roll wear curve map uploaded to plate shape secondary machine offline optimization system, in plate shape secondary machine offline optimization system to this roll in the rolling cycle rolling band steel carry out re-computation, roll wear curve map that is calculated and the roll wear curve map of uploading are compared, regulate the roll wear mathematical model parameter then, re-computation again, until roll wear curve map that the roll wear curve map of plate shape secondary machine offline optimization system-computed and aforementioned hand dipping form as far as possible near or overlap till, when
When (1) single current was produced, each frame F1-F6 roll wear mathematical model adopted following parameter value:
F1：0.000032-0.000038 F2：0.000038-0.000043 F3：0.000032-0.000036
F4：0.00033-0.00040 F5：0.00021-0.00028 F6：0.00016-0.00023
When (2) double fluid was produced, each frame F1-F6 roll wear mathematical model adopted following parameter value:
F1：0.000045-0.000052 F2：0.000048-0.000053 F3：0.000042-0.000049
F4：0.00045-0.00053 F5：0.00035-0.00041 F6：0.00029-0.00036
When rolling mode is carried out analysis and judgement, by increasing system program, slab number is analyzed, the automatic real-time judge rolling mode of plate shape secondary machine offline optimization system, when rolling mode is single current, plate shape secondary machine offline optimization system adopts the roll wear mathematical model under the single-stream mode, and when rolling mode was double fluid, plate shape secondary machine offline optimization system adopted the roll wear mathematical model under the double-stream mode.
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| EP2422894A1 (en) * | 2010-08-27 | 2012-02-29 | Siemens Aktiengesellschaft | Method for determining the wear of a roller used to roll rolled goods |
| CN103817156B (en) * | 2014-02-28 | 2016-01-13 | 北京首钢股份有限公司 | A kind of method controlling finishing stand threading middle wave |
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Non-Patent Citations (8)
| Title |
|---|
| 冷轧轧辊磨损数学模型研究. 付华高，李长生，刘相华，王国栋等.钢铁研究，第133期. 2003 |
| 冷轧轧辊磨损数学模型研究. 付华高，李长生，刘相华，王国栋等.钢铁研究，第133期. 2003 * |
| 温度对轧辊磨损测量结果的影响. 徐光，熊俊伟，刘显军，李海滨.特殊钢，第27卷第3期. 2006 |
| 温度对轧辊磨损测量结果的影响. 徐光，熊俊伟，刘显军，李海滨.特殊钢，第27卷第3期. 2006 * |
| 轧辊磨损分析及计算. 高国才，王俊胜.鞍钢技术，第2期. 2000 |
| 轧辊磨损分析及计算. 高国才，王俊胜.鞍钢技术，第2期. 2000 * |
| 轧辊磨损模型研究. 朱宏涛，王哲等.钢铁研究，第108期. 1999 |
| 轧辊磨损模型研究. 朱宏涛，王哲等.钢铁研究，第108期. 1999 * |
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