backup roll contour of a stcrown tandem cold rolling mill

backup roll contour of a stcrown tandem cold rolling mill

For gaining strip edge drop controllability and increasing roll grinding precision, the edge drop control work roll (EDW) was developed and designed in 1700 mm tandem cold rolling mill. During the rolling trial, the roll configuration between EDW and conventional backup roll didn’t match well because of the large fluctuation of strip edge drop, the lower shape control ability and non-uniform roll wearing, so the new …

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analysis of flatness control capability based on the

analysis of flatness control capability based on the

Oct 16, 2018 · The 6-high continuously variable crown (6-h CVC) cold rolling mill shows limited capability to control coupled edge and center waves for both narrow strip and ultra-wide strip production. In order to solve this problem, an integrated three-dimensional (3D) elastic-plastic finite element model (FEM) of rolls and strip is built to calculate the effect functions in consideration of work roll

development andapplication of roll contour configuration

development andapplication of roll contour configuration

The roll contour configuration consists of a variable contact back-up roll contour and a positive crown work roll contour. ... solutions and packages for continuous cold-rolling tandem mills and

ep0019737a1 rolling millusingvariable crown roll

ep0019737a1 rolling millusingvariable crown roll

A multi-high rolling mill comprising work rolls and back-up rolls, in which at least one of said rolls is a variable crown roll having the extent of crowning controlled by a pressure medium (Fig. 1). EP0019737A1 - Rolling mill using variable crown roll - Google Patents

coupled pickling line tandem cold mill

coupled pickling line tandem cold mill

coupled pickling line & tandem cold mill High-capacity production of high-quality products For a wide range of products, the required strip thickness, flatness and surface quality can be achieved more economically by linking the pickling and cold-rolling processes

axial forceanalysis androll contourconfiguration of

axial forceanalysis androll contourconfiguration of

In order to analyze the influence of technical parameters on work roll axial force of four-high continuous variable crown (CVC) mill, the deformation analyzing model with top roll system and strip was established based on influence function method. Then a CVC work roll curve designing scheme was proposed and it was carried out on some cold rolling mill considering the requirement of

backup roll contourof 2250 cvc hot stripmill request pdf

backup roll contourof 2250 cvc hot stripmill request pdf

Based on the fact that the backup roll for 2250 CVC tandem mill in hot rolling has serious and non-uniform wear, and the edge spalling often happens, a new backup roll contour named CVR (CVC-VCR

smartcrown work roll contour ofa 4 hitandem cold rolling

smartcrown work roll contour ofa 4 hitandem cold rolling

Request PDF | SmartCrown work roll contour of a 4-hi tandem cold rolling mill | The new SmartCrown profile and flatness control technology was first adopted in a wide strip tandem cold rolling mill

backup roll contourfor edge drop control technology in

backup roll contourfor edge drop control technology in

Based on ANSYS software and industrial rolling of edge drop control,a 3-dimensional finite element model of roll stacks was built for 1 700 mm tandem cold rolling mill.Using this model,the reasons for some problems exists on the 1 700 mm tandem cold rolling mill configuration of the conventional backup roll and tapered work roll system such as the lower shape control,the poor edge drop control

taperroll contourdesign for edge drop control of non

taperroll contourdesign for edge drop control of non

Abstract: The taper work roll of the 1700 mm tandem cold rolling mills had some problems in the course of using, and the taper roll contour was ground difficultly and the difference between the designed contour and grinding contour was very big, and the work roll and backup roll had very serious and non-uniform roll wearing and even often had roll spalling, and above those problems affected the stability …

ep0019737a1 rolling millusingvariable crown roll

ep0019737a1 rolling millusingvariable crown roll

A multi-high rolling mill comprising work rolls and back-up rolls, in which at least one of said rolls is a variable crown roll having the extent of crowning controlled by a pressure medium (Fig. 1). EP0019737A1 - Rolling mill using variable crown roll - Google Patents

axial forceanalysis androll contourconfiguration of

axial forceanalysis androll contourconfiguration of

In order to analyze the influence of technical parameters on work roll axial force of four-high continuous variable crown (CVC) mill, the deformation analyzing model with top roll system and strip was established based on influence function method. Then a CVC work roll curve designing scheme was proposed and it was carried out on some cold rolling mill considering the requirement of

coupled pickling line tandem cold mill

coupled pickling line tandem cold mill

coupled pickling line & tandem cold mill High-capacity production of high-quality products For a wide range of products, the required strip thickness, flatness and surface quality can be achieved more economically by linking the pickling and cold-rolling processes

development andapplication of roll contour configuration

development andapplication of roll contour configuration

The roll contour configuration consists of a variable contact back-up roll contour and a positive crown work roll contour. ... solutions and packages for continuous cold-rolling tandem mills and

analysis of flatness control capability based on the

analysis of flatness control capability based on the

Oct 16, 2018 · The 6-high continuously variable crown (6-h CVC) cold rolling mill shows limited capability to control coupled edge and center waves for both narrow strip and ultra-wide strip production. In order to solve this problem, an integrated three-dimensional (3D) elastic-plastic finite element model (FEM) of rolls and strip is built to calculate the effect functions in consideration of work roll

backup roll contourof 2250 cvc hot stripmill request pdf

backup roll contourof 2250 cvc hot stripmill request pdf

Based on the fact that the backup roll for 2250 CVC tandem mill in hot rolling has serious and non-uniform wear, and the edge spalling often happens, a new backup roll contour named CVR (CVC-VCR

cambering of four highcold millwith the view of reducing

cambering of four highcold millwith the view of reducing

Related technology can’t be copied to tandem cold rolling with heavy reduction rate which is aimed at managing complex seas. The patent, entitled “A back-up roll configuration curve which cooperate with the working roll configuration curve of continuous variable crown mill”, the application number is CN200510024680.1 [7]; the patent

smartcrown a new system for improved profile and

smartcrown a new system for improved profile and

SmartCrown is a new technology developed by VAI for a more accurate control of profile and flatness during hot or cold rolling of steel and aluminium. In particular, SmartCrown allows to avoid to a great extent, or even completely, the frequently occurring defect called quarter buckles. The paper highlights the design features of the SmartCrown work rolls and compares the new technique with

dynamic characteristics ofcold rolling milland strip

dynamic characteristics ofcold rolling milland strip

Feb 21, 2014 · The dynamic model of cold rolling mill based on strip flatness and thickness integrated control was proposed, containing the following sub-models: the rolling process model, the dynamic model of rolls along axial direction, and the compensation model. Based on the rule of volume flow rate, the dynamic rolling process model was built. The work roll and backup roll were taken as elastic

analysis of flatness control capability based on the

analysis of flatness control capability based on the

Oct 16, 2018 · The 6-high continuously variable crown (6-h CVC) cold rolling mill shows limited capability to control coupled edge and center waves for both narrow strip and ultra-wide strip production. In order to solve this problem, an integrated three-dimensional (3D) elastic-plastic finite element model (FEM) of rolls and strip is built to calculate the effect functions in consideration of work roll

optimization technology of roll contoursduring skin pass

optimization technology of roll contoursduring skin pass

The hot-rolled strip skin-pass mill is the important technological equipment of finishing process in the hot rolling plant, and its role is to apply a slight thickness reduction of approximately 1% - 4% to the finished products cooled to room temperature to repair flatness defects and improve the surface quality and mechanical properties. In this study, the initial flat roll contours were

research anddevelopment trend of shape controlforcold

research anddevelopment trend of shape controlforcold

Jul 19, 2017 · This technology was successfully applied to a 1550 mm tandem cold rolling mill at Baosteel [75,76,77,78]. This development indicates that the edge drop control technology of the 6-high UCMW cold rolling mill has matured. However, most of the cold rolling mills are 6-high UCM rolling mills or 4-high CVC rolling mills

winner's engineering solutions rolling mills

winner's engineering solutions rolling mills

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