Optimal setting method for roll force of six-roller temper mill unit

A technology for optimizing setting and rolling force, applied in the direction of rolling force/roll gap control, etc., which can solve the problems of large error of rolling force setting value, influence of shape, sharp fluctuation of rolling force and elongation, etc. , to improve the yield, reduce production instability, and improve the stability of shape control.

Active Publication Date: 2013-09-18
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the large error in the setting value of the rolling force of some current temper mills, the closed-loop system will have a large adjustment in the initial stage of control, the rolling force and elongation fluctuate violently, and the shape of the plate is also affected.

Method used

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  • Optimal setting method for roll force of six-roller temper mill unit
  • Optimal setting method for roll force of six-roller temper mill unit
  • Optimal setting method for roll force of six-roller temper mill unit

Examples

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Embodiment 1

[0027] In order to illustrate the basic idea of ​​the present invention, a certain 1850 six-roll skin pass unit is taken as an example, with the help of figure 1 To describe the tension optimization setting process of the steel strip with the specification of 1.2m*1.0mm and the steel type of SPCC on a specific skin pass unit.

[0028] First, collect the equipment and process parameters of the skin pass unit in step 1, and collect the equipment and process parameters of the skin pass unit in step 1, including the diameter of the work roll 550mm, the equivalent mass of the backup roll, intermediate roll and work roll 5.4*10 4 kg, 7.02*10 3 kg, 4.71*10 3 kg, the equivalent stiffness of the leveling machine archway is 7.5*10 10 N / m, contact stiffness between backup roll and intermediate roll 1.0*10 10 N / m, contact stiffness between work roll and intermediate roll 0.5*10 10 N / m, the maximum rolling pressure 12*10 6 N, minimum rolling pressure 6*10 5 N, go to step 2;

[0029]...

Embodiment 2

[0042] In order to further clarify the design idea of ​​the patent, a certain 1850 six-roll skin pass unit is taken as an example, with the help of figure 1 To describe the tension optimization setting process of the steel strip with the specification of 1.7m*0.65mm and steel type Trip780 on a specific skin pass unit.

[0043] First, collect the equipment and process parameters of the skin pass unit in step 1, and collect the equipment and process parameters of the skin pass unit in step 1, including the diameter of the work roll 550mm, the equivalent mass of the backup roll, intermediate roll and work roll 5.4*10 4 kg, 7.02*10 3 kg, 4.71*10 3 kg, the equivalent stiffness of the leveling machine archway is 7.5*10 10 N / m, contact stiffness between backup roll and intermediate roll 1.0*10 10 N / m, contact stiffness between work roll and intermediate roll 0.5*10 10 N / m, the maximum rolling pressure 12*10 6 N, minimum rolling pressure 0.6*10 6 N, go to step 2;

[0044] In st...

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Abstract

The invention relates to an optimal setting method for roll force of a six-roller temper mill unit, and belongs to a strip steel temper rolling production process and a control technology. After a lot of production tests and theory researches, the equipment and process characteristics of the temper rolling process of a six-roller temper mill are fully considered. According to the method, a set of optimal roll force setting values of the temper mill is determined for each type of steel and each specification. When a new specification of product is produced at the first time, a system can give the reasonable roll force setting values. Under the conditions of ensuring that slip factors are in a critical point, calculating the impact response amplitude of the roll force of the temper mill not to be beyond load, and finally being combined with the actual production, the roll force setting values of the temper mill are determined. The bad phenomena of unstable production, break by rolling and the like due to inaccurate setting are reduced. The strip shape controlling stability of the temper mill can be improved, and the yield is increased.

Description

technical field [0001] The invention belongs to strip steel skinning production technology and control technology, in particular to a rolling force optimization setting method of a six-roll skin skinning unit. Background technique [0002] As the degree of industrialization of society becomes more and more widespread, the level of social and economic development has been greatly improved, which has driven the market demand for plate and strip steel (household appliance plate and automobile plate, etc.) in the metallurgical field, and also put forward higher requirements for the quality of plate and strip steel. Require. As a subsequent finishing process in the production of cold-rolled strips, leveling is particularly important for product quality control. The tempering process can ensure the mechanical properties and shape quality of the annealed product by controlling the process parameters such as rolling force, tension and roll bending force. Therefore, the operating s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/58
Inventor 申延智王凤琴解家英朱启建张利君宁林新张长利孙猛郭薇
Owner SHOUGANG CORPORATION
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