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A method for mill entry thickness optimization using quality analysis tools

A technology of inlet thickness and quality analysis, applied in manufacturing tools, rolling mill control devices, metal rolling, etc., can solve problems such as lack of quality analysis methods, and achieve the effect of ensuring calculation accuracy

Active Publication Date: 2022-03-04
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

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Problems solved by technology

However, the data analysis used in this method all adopts simple mean statistics and lacks effective quality analysis methods.

Method used

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  • A method for mill entry thickness optimization using quality analysis tools
  • A method for mill entry thickness optimization using quality analysis tools
  • A method for mill entry thickness optimization using quality analysis tools

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Experimental program
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Embodiment 1

[0059] The method of utilizing quality analysis tools to optimize the thickness of the rolling mill entrance is applied to a specific cold rolling production line, which produces medium and low grade non-oriented silicon steel and part of medium and high grade silicon steel (in the present invention, medium and low grade silicon steel The steel grade S30Y and steel grade S60RC are taken as examples, and the medium and high grade silicon steel is steel grade S23 as an example), and the process steps are as follows:

[0060] (1) Take the steel coil as the unit, collect its raw material data, such as steel type, chemical composition, longitudinal thickness; control system data, such as the elongation rate of the tension leveler, the tension leveling mode when the weld passes, the insertion amount of the tension leveler, Marking of the input of the tension leveler, parameters of the weld passing through the tension leveler, tension of the tension leveler; pickling process data, suc...

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Abstract

The invention provides a method for optimizing the entrance thickness of a rolling mill by using a quality analysis tool, and belongs to the technical field of cold tandem rolling process control. This method first obtains the potential factors affecting the thickness of the rolling mill entrance, and then uses quality analysis tools to screen out key factors, quantify the relationship between pickling speed and pickling thickness reduction, and consider the thickness reduction of the weld when it passes through the tension leveler. And the thickness reduction under different tension-leveling elongation, and finally get the calculation formula of the thickness reduction of the rolling mill entrance, optimize the calculation of the thickness of the rolling mill entrance, improve the accuracy of the original data of the preset model, and then improve the preset rolling Model accuracy for forces. The invention ensures the accuracy of the initial value calculated by the preset model and improves the precision of the rolling force model.

Description

technical field [0001] The invention relates to the technical field of cold tandem rolling process control, in particular to a method for optimizing the entrance thickness of a rolling mill by using a quality analysis tool. Background technique [0002] The fully continuous cold rolling production line is currently the most widely used and recognized as the most efficient cold rolling production line. It uses hot-rolled strip steel as raw material, and the hot-rolled strip The iron oxide scale of the steel is removed, and then cold-rolled to the thickness of the finished product. Due to the characteristics of cold tandem rolling equipment and production technology, there is a common thickness difference between the measured thickness of the strip steel at the entrance of the rolling mill and the thickness of the hot-rolled raw material, and the raw material thickness is the basis for the calculation of the preset model in the tandem cold rolling process control system. Data...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/20B21B1/28
CPCB21B37/20B21B1/28
Inventor 陈丹邵健殷实茅福根张雅倩陆惟见邹军
Owner 北京科技大学设计研究院有限公司