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An online evaluation method based on looper stability of strip finishing mill

A finishing mill and stability technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problem of looper stability

Active Publication Date: 2021-02-12
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the research on the looper is about how to control the looper to improve the stability of the looper, but there is almost no literature on the evaluation of the looper stability

Method used

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  • An online evaluation method based on looper stability of strip finishing mill
  • An online evaluation method based on looper stability of strip finishing mill
  • An online evaluation method based on looper stability of strip finishing mill

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Embodiment Construction

[0048] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0049] Such as figure 1 As shown, the online evaluation method based on the looper stability of the strip finishing mill provided by the embodiment of the present invention includes:

[0050]S101, collecting in real time the data of the strip looper unrolling process and the strip head threading data of the finishing mill;

[0051] S102, according to the real-time collected strip looper set-up process data, determine the influence coefficient of the strip-steel looper set-up state;

[0052] S103, according to the strip head threading data collected in real time, determine the hit ratio of the looper of the strip head and the hit ratio of the width of the strip head;

[0053] S104. Determine the looper score of the strip head and the looper stability le...

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Abstract

The invention provides an online assessment method based on the looper stability of a strip steel finishing mill, which can perform online assessment and classification on the looper stability, thereby realizing the quality assessment of the looper stability of the strip steel finishing mill. The method comprises: real-time collection of strip looper unwinding process data and strip head threading data of the finishing mill; and determining the influence coefficient of the strip looper unrolling state according to the real-time collected strip looper unpacking process data ;According to the strip head threading data collected in real time, determine the hit rate of the strip head looper and the width hit rate of the strip head; and the strip head width hit rate determine the strip head loop score and loop stability rating. The invention relates to the technical field of finishing mills.

Description

technical field [0001] The invention relates to the technical field of finishing mills, in particular to an online evaluation method based on the looper stability of a strip steel finishing mill. Background technique [0002] The finishing mill is an important part of the hot rolling mill, and generally has 7 stands and 6 looper devices. The looper of the finishing mill is located between the two finishing stands, and is used to absorb the amount of strip sheathing caused by the dynamic speed drop of the main drive system due to the steel bite, so as to ensure a constant flow rate of the strip per second between adjacent stands. Relationship formation and stability play a very important role. In the hot continuous rolling production process, if the looper is unstable, the second flow rate between two adjacent stands will not match, the phenomenon of piled steel will appear, and even scrap steel will seriously affect the production efficiency and product quality. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B41/12B21B41/00
CPCB21B41/00B21B41/12
Inventor 荆丰伟冯莹李杰韩庆
Owner UNIV OF SCI & TECH BEIJING