Method for determining strip steel width and strip steel straight deviation according to measured radial force of plate shape roller

A strip deviation and radial force technology, used in length measuring devices, metal rolling, manufacturing tools, etc., can solve the problems of inaccurate strip width, inability to provide strip center offset, etc. The effect of misalignment

Active Publication Date: 2017-09-05
ANGANG STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a method for determining the strip width and strip deviation amount according to the measured radial force of the flat roller. The strip width provided by the unit is inaccurate, and cannot In the case of providing strip center offset, it can effectively avoid the wrong action of the strip shape control mechanism due to inaccurate strip width and uncertain strip deviation, and improve the robustness and applicability of the strip shape control system scope

Method used

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  • Method for determining strip steel width and strip steel straight deviation according to measured radial force of plate shape roller
  • Method for determining strip steel width and strip steel straight deviation according to measured radial force of plate shape roller
  • Method for determining strip steel width and strip steel straight deviation according to measured radial force of plate shape roller

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Embodiment

[0107] In the flatness reconstruction project of the cold rolling 1780 line tempering mill, the flatness measuring roll with the whole roll insert piezomagnetic type is used to realize the function of on-line detection of the flatness, provide the original data for the closed-loop control of the flatness, and meet the application requirements of the closed-loop control of the flatness . Due to the limited space during the equipment renovation, the skin-passing unit lacks an automatic centering device for the strip, and the deviation of the strip over a large distance often occurs. At the same time, the actual width of the strip often occurs due to the failure of the entrance strip width measuring device. The phenomenon that the strip width recorded by the system does not match.

[0108] The structure of the plate shape measurement roller adopts the whole roller block structure, and there are 33 equal-width measurement areas distributed along the axial direction of the detectio...

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Abstract

The invention relates to a method for determining strip steel width and strip steel straight deviation according to measured radial force of a plate shape roller. The plate shape measurement roller conducts measurement through a fixed width subsection manner and an edge part subsection encryption manner, measuring sections of the plate shape measurement roller are sequentially numbered from the operation side of a rack to the transmission side of the rack, and whether the measuring sections are starting coverage measuring sections or not is judged; then quadratic polynomial curve fitting is carried out, the width coverage rate of the measuring sections is solved, and the distance between the strip steel edge of the operation side and the outer edge of the first measuring section on the operation side and the distance between the strip steel edge of the transmission side and the outer edge of the first measuring section on the operation side are further obtained; and the strip steel actual width and strip steel straight deviation are further obtained. The method has the beneficial effects that strip shape mistuning caused by inaccurate strip steel width is avoided, the robustness of a strip shape control system is improved, and the application scope of the strip shape control system is enlarged.

Description

technical field [0001] The invention belongs to the technical field of cold-rolled strip steel control, and in particular relates to a method for determining the width of the strip steel and the deviation amount of the strip steel according to the radial force measured by the shape roller, which is applicable to the application of the cold-rolled strip steel strip shape control system and cannot be determined Processing of signals of measured values ​​of flatness during strip width and strip deviation. Background technique [0002] Cold rolling technology is one of the links with the highest technical requirements in the field of steel rolling, and cold rolling flat shape control technology and control system is the most complicated technical content in the field of cold rolling technology. With the improvement of users' requirements for the quality of cold-rolled products, especially for high-end automobiles and high-end IT product manufacturing industries, the shape qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28B21B38/00
CPCB21B37/28B21B38/00
Inventor 曹忠华秦大伟张岩李志锋侯永刚王军生刘宝权宋君费静许寒冰
Owner ANGANG STEEL CO LTD
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