Modeling the thermal and thermoelastic responses of work rolls used for hot rolling steel strip

Corral, R.L.; Colás, Rafael; Pérez, A.

doi:10.1016/j.jmatprotec.2004.04.090

Cited by 24 publications

(24 citation statements)

References 9 publications

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“…For hot rolling conditions, knowledge of the heat fluxes entering the roll is fundamental for evaluation of thermal fatigue, which is one of the major factor of wear on rolls, as investigated by Coral et al (2004) [1] or Li et al (2007) [2]. Fatigue load is completely negligible for cold rolling conditions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Interfacial Heat Flux and Surface Temperature by Inverse Analysis with Thermocouple (Fully Embedded) during Hot Steel Strip Rolling

Weisz-Patrault¹,

Ehrlacher²,

Legrand³

et al. 2012

AMR

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Knowledge of temperature distribution in the roll is fundamental aspect in cold rolling. An inverse analytical method has been previously developed to determine interfacial heat flux and surface temperature by measuring the temperature with a thermocouple (fully embedded) at only one point inside the roll. On this basis some pilot mill tests have been performed. The temperature sensor, the calibration procedure and rolling tests at different strip rolling conditions (5%, 10%, 15% and 20%) are described. Results show a good agreement with well-known theoretical models. Moreover the CPU times of the method (around 0.05 s by cycle) enable an online control of the rolling process.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Interfacial Heat Flux and Surface Temperature by Inverse Analysis with Thermocouple (Fully Embedded) during Hot Steel Strip Rolling

Weisz-Patrault¹,

Ehrlacher²,

Legrand³

et al. 2012

AMR

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“…Many studies have been done for investigating the deformation and thermal-mechanical behavior of the rotating roller in other processes, such as the roller in hot powder pressing, 2) the roller in a cold rolling process, 3) the work roll in hot strip rolling process, [4][5][6][7] the cooling roller in twin-roll strip continuous casting. 8) However, relatively little attention has been given to the evaluation of roll stresses and deformation behavior of the rotating roller in PFC process.…”

Section: Introductionmentioning

confidence: 99%

Thermal Deformation Analysis of the Rotating Roller in Planar Flow Casting Process

Liu

Chen

et al. 2010

ISIJ Int.

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“…Numerous works have been conducted. Either numerical [4][5][6][7][8][9][10][11][13][14][15][16][17][18][19][20][21]23,26 or analytical methods 12,22,24,25,[27][28][29] were adopted and the conclusions are:…”

Section: Introductionmentioning

confidence: 99%

Comprehensive contour prediction model of work roll used in online strip shape control model during hot rolling

Wang¹,

Yang²,

He³

et al. 2007

Ironmaking & Steelmaking

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Initial, thermal and wear contours of the work roll are three major sources of mill disturbance and play critical roles in crown and shape control of strip. To simplify the complex contour curve of the work roll resulting from superposition of three kinds of contour mentioned above in the online strip shape control model, a comprehensive contour concept of the work roll and its predictive calculation model are put forward in the present work. Predictive calculation of the comprehensive contour of the work roll in the online strip shape control model during hot rolling consists of two important parts, namely wear contour calculation and thermal contour calculation, which have a direct influence on the accuracy of shape control. A statistical wear model and a finite difference thermal contour model of the work roll are described in the present work. The comprehensive contour is the sum of grinding, wear and thermal contours. This comprehensive contour calculation model has been applied successfully in a real online strip shape control model. Its high precision has been proved through the large amounts of actual roll profile measurement and theoretical analysis. The hit rates (per cent of shape index satisfying requirement) of crown and head flatness of the strips rolled by using the shape control model, which includes the comprehensive contour calculation model, have increased about 16 and 10% respectively, compared with that of strips rolled using manual operation.

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Modeling the thermal and thermoelastic responses of work rolls used for hot rolling steel strip

Cited by 24 publications

References 9 publications

Experimental Study of Interfacial Heat Flux and Surface Temperature by Inverse Analysis with Thermocouple (Fully Embedded) during Hot Steel Strip Rolling

Experimental Study of Interfacial Heat Flux and Surface Temperature by Inverse Analysis with Thermocouple (Fully Embedded) during Hot Steel Strip Rolling

Thermal Deformation Analysis of the Rotating Roller in Planar Flow Casting Process

Comprehensive contour prediction model of work roll used in online strip shape control model during hot rolling

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