Strip element method for shape discrimination of strip rolling

Liu, Hong‐Min; Peng, Yan; Yu‐Peng, Chu; Wang, Yingrui

doi:10.1002/cnm.701

Cited by 5 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However different rolling mills have different shape control ability [6][7][8]. strip plastic deformation model and shape discrimination model [9] are mainly in connection with the strip, namely, if the parameters of the rolling strip were known, the shape target curve is fixed. However, strictly speaking, this is not correct.…”

Section: Introductionmentioning

confidence: 99%

Study on the Shape Target Curve Setting Model for Cold Rolling Strip

Zhao

Wang

Liu

2014

AMR

View full text Add to dashboard Cite

In order to automatically set the shape target curve, a model based on shape control theory is put forward. By coupling the shape forecast model and the shape discrimination model, the practical and strict shape target curve is researched. By combining strip plastic deformation model and rolls elastic deformation model, the shape forecast model is built. The shape discrimination is based on the strip element method. The main idea of the shape target curve is to minimize the shape crown in the first few passes on the condition that the strip is not unstable, in the last two passes to keep the good shape under the natural shape crown. Taking five-pass six-high rolling mill as an example, the convex strip is analyzed. The simulation and calculation results prove the validity and feasible of the shape target curve setting model. This model develops the shape target theory and lays the foundation of application of shape target curve in the rolling process of cold rolling.

show abstract

Section: Introductionmentioning

confidence: 99%

Study on the Shape Target Curve Setting Model for Cold Rolling Strip

Zhao

Wang

Liu

2014

AMR

View full text Add to dashboard Cite

show abstract

“…The basic principle of the instability discrimination model is as follows: firstly, figure out the residual stress distribution along the width direction of plate; Secondly, based on the theory of small deflection, the classic buckling theory is used to figure out the flatness defect or instability degree, and the result is used to measure whether the strip meets the production requirements. This section use the instability discrimination model established in reference [23] to solve the discrimination factor, with the purpose of determining the energy state of the strip, that is, whether the flatness quality is good or not.…”

mentioning

confidence: 99%

Study on setting method of flatness target curve of SUNDWIG 20-high mill considering target crown

Sun

Yan

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The flatness target curve is important in the flatness control theory. The accuracy of flatness target curve is an important factor to determine the load of flatness control means and flatness quality. Aiming at the defect that crown of each pass after rolling cannot be controlled quantitatively in the traditional target curve formulation of cold rolling, a new method considering the target crown was proposed. Specifically, the target crown of each pass can be set by combining the total proportional crown change in hot rolling field to each pass and the instability discrimination model in cold rolling field. the total proportional crown change of incoming material and finished product is allocated to each pass, and the instability discrimination model is applied to ensure the stability of the plate. The purpose of new method is to control of the crown of each pass quantitatively, so that the flatness and thickness of plate can meet the production requirements. Taking SUNDWIG 20-high mill and typical rolling products as an example, the simulation results show that, on the basis of ensuring the flatness and obtaining the minimum available crown after rolling, the model can make the flatness and crown meet the production requirements at the same time and control the crown of each pass after rolling quantitatively by setting the target crown of each pass.

show abstract

Simulation of type selection for 6-high cold tandem mill based on shape control ability

Peng

Liu

Wang

2007

J Cent. South Univ. Technol.

View full text Add to dashboard Cite

A theoretical method for selecting strip rolling mill type that considered shape control ability was established using the figure alteration range that was worked by the alteration track of vector expressing strip's cross section (crown) to express the shape control ability of rolling mill. With the mathematical models and simulation software that were developed by the authors' own models, four types of mills were aimed, including HCM (6-high middle rolls shift type HC (high crown) -mill), HCMW (6-high middle rolls and work rolls shift type HC-mill), UCM (6-high middle rolls shift type HC-mill with middle roll bender) and UCMW (6-high middle rolls and work rolls shift type HC-mill with middle roll bender), and the shape and crown control ability of every mill type was analyzed and compared. An appropriate arrangement mode of tandem mill was brought forward. The results show that UCMW mill is a perfect choice for controlling shape and crown, and the area of control characteristics curve of UCMW (or UCM) is twice than that of HCM, but UCM mill is also a good choice for its simple frame. In other word, the shape and crown controlling ability of UCMW mill is better than that of UCM mill, but the frame of UCM mill is simpler than that of UCMW mill. As for the final type of mill, should be synthetically decided by thinking over fund and equipment technology.

show abstract

Strip element method for shape discrimination of strip rolling

Cited by 5 publications

References 7 publications

Study on the Shape Target Curve Setting Model for Cold Rolling Strip

Study on the Shape Target Curve Setting Model for Cold Rolling Strip

Study on setting method of flatness target curve of SUNDWIG 20-high mill considering target crown

Simulation of type selection for 6-high cold tandem mill based on shape control ability

Contact Info

Product

Resources

About