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Method of improving galvanizing unit vertical loop tension control precision

A vertical looper and tension control technology, which is applied in hot-dip plating process, coating, metal material coating process, etc.

Inactive Publication Date: 2020-07-07
BAOTOU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the tension control accuracy of the vertical looper of the galvanizing unit, solve the problem, improve the tension control accuracy of the vertical looper, and make the tension control of the vertical looper meet the production requirements of the continuous hot-dip galvanizing unit

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  • Method of improving galvanizing unit vertical loop tension control precision

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Embodiment Construction

[0014] In order to make those skilled in the technical field of the application understand the application more clearly, the technical solution of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, it is a schematic diagram of the continuous hot-dip galvanizing entrance uncoiler and looper in the embodiment of the present invention, including uncoiler 1, welding machine 2, No. 1 tension roller group 3, looper system 4, looper tension gauge 5, two No. tension roller set 6.

[0016] At present, the continuous hot-dip galvanizing production line is divided into three parts: the entrance section, the process section and the exit section.

[0017] The vertical looper is the link between the entrance section, the process section and the exit section of the continuous hot-dip galvanizing production line. It is the main link to ensure the continuous and stable operation of t...

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Abstract

The invention discloses a method of improving galvanizing unit vertical loop tension control precision. The method comprises the steps that for vertical loop tension control, a measured value of a vertical loop outlet tensiometer is used as a feedback value, a set value is compared with the feedback value, a comparison difference value serves as an input value of a tension regulator, loop controlmotor torque is given through a PID algorithm, and closed-loop control over tension is realized. The invention aims to provide the method of improving the galvanizing unit vertical loop tension control precision, improve vertical loop tension control precision and make vertical loop tension control meet the production requirement of a continuous hot-dip galvanizing unit.

Description

technical field [0001] The invention relates to the technical field of continuous galvanizing line automation, in particular to a method for improving the tension control precision of a vertical looper of a galvanizing line. Background technique [0002] The existing galvanizing line is a continuous production line designed by voestalpine, which can produce strip steel of 0.25mm-2.5mm. The thickness span of the strip steel produced is relatively large. In the original design, the control parameters of each specification thickness remain unchanged. Under normal circumstances, the tension control of the vertical looper is very unstable. In severe cases, the strip steel of the vertical looper will lose tension, and the entire line will be stopped. It may also cause serious deviation of the strip steel in the looper, resulting in edge scraping or tearing and other serious accidents. [0003] The tension control of the vertical looper of the galvanizing line is a difficult point...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06C23C2/40
CPCC23C2/06C23C2/40C23C2/003
Inventor 陈儒峰李向东杜江姚遥
Owner BAOTOU IRON & STEEL GRP
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