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Cold rolling temper mill thin strip steel plate shape controlling system and method thereof

A technology of control system and control method, which is applied in the field of cold rolling, can solve problems such as poor flatness of strip steel, and achieve the effects of improving stability, reducing failure time, and improving flatness

Inactive Publication Date: 2019-05-03
ANHUI MA STEEL AUTOMATION INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The embodiment of the present invention provides a thin strip shape control method for a cold rolling skin pass mill, aiming at solving the problem of poor strip flatness existing in the existing constant tension variable rolling force control mode,

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  • Cold rolling temper mill thin strip steel plate shape controlling system and method thereof
  • Cold rolling temper mill thin strip steel plate shape controlling system and method thereof
  • Cold rolling temper mill thin strip steel plate shape controlling system and method thereof

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] The tempering machine includes rolling force controller, tension controller 1 and tension controller 2. The rolling force correction model is integrated in the rolling force controller. The rolling force currently output by the whole machine is integrated with the tension correction model 1 in the tension controller 1, and the tension correction model 2 is integrated in the tension controller 2. Based on the tension correction model 1 and the tension correction model 2, the leveling is corrected in real time. Machine inlet tension and outlet tension;

[0033] In the embodiment of the presen...

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Abstract

The invention belongs to the technical field of cold rolling, and discloses a cold rolling temper mill thin strip steel plate shape controlling system and a method thereof. The method specifically comprises the following steps that in the cold rolling process, a temper mill simultaneously adjusts the current rolling force of the temper mill, the inlet tension and the outlet tension of the temper mill based on the difference between a set elongation rate and a feedback elongation rate, the temper mill automatically calculates the synchronously increased rolling force, the decreased inlet tension and the increased outlet tension in the production correspondingly to improve the flatness of strip steel and reduce the fluctuation of the elongation rate of the temper mill in the process of rolling the thin strip steel, so that the elongation rate accuracy is controlled within 0.04%. Meanwhile, the stability of the temper mill is improved, the failure time is reduced, and the product qualityis improved.

Description

technical field [0001] The invention belongs to the technical field of cold rolling and provides a strip shape control system and method for a cold rolling temper mill. Background technique [0002] For single stand leveling, rolling force control and strip steel tension control are generally used at present, and the elongation control system adopts the control mode of constant tension and variable rolling force. The annealed steel strip is flattened in the range of small deformation, the yield limit is reduced to the minimum value, and the yield platform disappears. When the tempering machine produces thin strip steel, such as high-strength thin strip steel, it only increases the rolling force to meet the elongation requirement of the steel plate, which affects the flatness of the strip steel. Contents of the invention [0003] The embodiment of the present invention provides a method for controlling the shape of a thin strip in a cold rolling pass mill, aiming to solve ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28
Inventor 王强程鹏张世友范卫锋王伟
Owner ANHUI MA STEEL AUTOMATION INFORMATION TECH
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