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Hot continuous rolling-based strip steel head steel biting impact comprehensive analysis method

A comprehensive analysis, hot rolling technology, applied in the direction of metal rolling, metal rolling, rolling mill control devices, etc.

Active Publication Date: 2021-06-04
北京科技大学设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the researches on the steel-snapping impact of the strip head are on the torsional vibration of the main drive, but there are few literatures on the comprehensive analysis of the steel-snapping impact of the strip head

Method used

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  • Hot continuous rolling-based strip steel head steel biting impact comprehensive analysis method
  • Hot continuous rolling-based strip steel head steel biting impact comprehensive analysis method
  • Hot continuous rolling-based strip steel head steel biting impact comprehensive analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In this embodiment, a Kalman filter algorithm is used to filter the real-time collected data before the steel bite and the steel head steel bite impact data to remove the interference in the data.

[0055] Such as figure 2 , 3 , 4, and 5, in the aforementioned specific real-time mode based on the comprehensive analysis method for the impact of the steel strip head bite steel, further, the roll gap data on both sides of the steel strip head bite steel frame includes:

[0056] According to the real-time data of steel bite impact of the strip head, taking the roll gap as the main key (for example, the data of the steel bite from 100ms before the steel bite to the steel bite within 400ms), combining the mean value method and the extreme value method, using the strip steel head bite The optimal data of steel impact history is compared and analyzed with the current strip steel head bite steel impact data; wherein, the steel bite impact takes the roll gap wave peak as the ma...

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Abstract

The invention provides a hot continuous rolling-based strip steel head steel biting impact comprehensive analysis method and belongs to the technical field of roughing and finishing mills. According to the method, the strip steel end thickness step amount and the rack roll gap impact amount serve as evaluation targets, the influence of rough rolling and finish rolling head steel biting impact on equipment and product thickness is mainly analyzed, transmission torque, outlet thickness, roll gaps, rolling force and speed changes are analyzed, a basis is provided for optimization of the steel biting speed, and impact on a transmission system is reduced. On the basis of continuous judgment of calculated values such as roll gaps and rolling force of all racks in hot continuous rolling, the strip steel head steel biting impact strategy is analyzed, and actual application results show that the analysis method can effectively improve the head quality of the strip steel and reduce impact on the equipment transmission system.

Description

technical field [0001] The invention relates to the technical field of roughing and finishing mills, in particular to a comprehensive analysis method based on the bite impact of hot continuous rolling strip head. Background technique [0002] Rough and finish rolling units are the main components of hot rolling mills. Generally, there are 1 or 2 stands for rough rolling. In this article, there are 2 stands for rough rolling, namely R1 and R2. There are 7 finishing units. frame. Rough and finishing stands are 4-high rolling mills, with upper and lower backup rolls and upper and lower work rolls. In the hot rolling production process, if the rack bites the steel head with a large impact, it will affect the main drive system, the surface of the work roll, and the quality of the product. Therefore, a comprehensive analysis of the suggestions for the impact of steel bite on the head of the strip steel enables on-site operation, process, and equipment personnel to adjust the rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/26B21B37/00B21B38/00G06F30/17
CPCB21B1/26B21B37/00B21B38/00G06F30/17B21B2001/225
Inventor 毕鹏飞张飞荆丰伟任晓怀李杰曹成龙
Owner 北京科技大学设计研究院有限公司