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Roller parameter setting method for flatness and surface quality control of levelling unit

A technology of parameter setting and surface quality, applied in the direction of contour control, etc., can solve problems affecting the quality of finished products, wave shape and surface defects, weakening the effect of plate shape and surface quality control, etc., to bring economic benefits and reduce the probability of occurrence , Reduce the effect of color difference defects on the surface of strip steel

Active Publication Date: 2011-12-07
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the control parameters of the three parts of the roll system are set independently instead of coordinated with each other, it is not only easy to appear that the effects of the three part of the roll system control methods cancel each other out, which weakens the control effect on the shape and surface quality, but also may be in the The comprehensive effect of the control means of the roll system will bring new additional local waves and surface defects, which will affect the quality of the finished product

Method used

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  • Roller parameter setting method for flatness and surface quality control of levelling unit
  • Roller parameter setting method for flatness and surface quality control of levelling unit
  • Roller parameter setting method for flatness and surface quality control of levelling unit

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Embodiment 1

[0034] In order to illustrate the basic idea of ​​the present invention, a certain 1850CVC-6 type smoothing unit is taken as an example, with the help of figure 1 To describe the comprehensive optimization and setting process of the roll system parameters on a specific skin pass unit for a steel strip with a specification of 1200mm*0.8mm and a steel grade of SPCC:

[0035] First, in step 1, collect the equipment and process parameters of the skin pass unit, including the work roll body length L W =1850mm, working roll diameter DW =360mm, middle roll body length L M =1850mm, intermediate roll diameter D M =400mm, back-up roll body length L b =1850mm, back-up roller diameter D b =900mm, the distance between the drive side of the back-up roller and the center of the screw on the working side is l 1 =2500mm, the center distance between the drive side of the work roll and the bending roll hydraulic cylinder on the work side l 2 =2500mm, the maximum positive roll bending force ...

Embodiment 2

[0059] In order to further illustrate the basic idea of ​​the present invention, a 1850CVC-6 type smoothing unit is now taken as an example, with the help of figure 1 To describe the comprehensive optimization and setting process of the roll system parameters on a specific skin pass unit for a steel strip with a specification of 1000mm*0.6mm and a steel type of DC06:

[0060] First, in step 1, collect the equipment and process parameters of the skin pass unit, including the work roll body length L W =1850mm, working roll diameter D W =360mm, middle roll body length L M =1850mm, intermediate roll diameter D M =420mm, back-up roll body length L b =1850mm, back-up roller diameter D b =900mm, the distance between the drive side of the back-up roller and the center of the screw on the working side is l 1 =2500mm, the center distance between the drive side of the work roll and the bending roll hydraulic cylinder on the work side l 2 =2500mm, the maximum positive roll bending f...

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Abstract

The invention discloses a roll system parameter setting method for a temper mill unit through strip shape and surface quality control, and belongs to the technical field of strip shape leveling production. In the method, roll system parameters are comprehensively optimized, equipment and process characteristics of a current voltage characteristic-6 (CVC-6) temper mill unit are considered, and a set of comprehensively optimized set model suitable for roll system parameters of a six-roll CVC-6 temper mill unit is established on the premise of fully exerting the potential of a control means of all roll system parameters of the unit. The invention has the advantages that: the equipment and process characteristics of the six-roll temper mill unit are fully considered in the rolling process, and a group of set values of optimal working roll bending force, intermediate roll bending force and intermediate roll movement of the temper mill are searched through a comparison method, so that transverse distribution values of rolling pressure, inter-roll pressure and forward pull are uniform in the process of rolling strips; therefore, the strip shape and surface quality of strip steel are considered, the probability of occurrence of color difference defects on the surface of the strip steel is reduced, and economic benefits are brought to the unit.

Description

technical field [0001] The invention belongs to the technical field of plate shape leveling production, and in particular relates to a method for setting parameters of a roll system for a leveling unit to control the shape and surface quality, which is suitable for the rollers of the CVC-6 type leveling unit whose aim is to control the shape and surface quality Comprehensive optimization of system parameters. Background technique [0002] attached figure 1 It is a schematic diagram of the production process and equipment layout of the CVC-6 type skin pass unit. as attached figure 1 As shown, the strip 1 is uncoiled from the uncoiler 2 and sent to the frame, and after being rolled by the temper mill, the strip 1 reaches a specified thickness and is sent to the coiler 3 for rewinding. The rolls of the skin pass mill include work rolls 4, intermediate rolls 5 and backup rolls 6, and the work rolls are in direct contact with the strip surface. Reference attached figure 1 An...

Claims

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Application Information

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IPC IPC(8): B21B37/30
Inventor 王凤琴白振华解家英朱启建尹显东乔建军周利申延智齐海英张利君于顺兵闻达苏昊刘丹宁林新
Owner SHOUGANG CORPORATION
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