backup roll contour of a stcrown tandem cold rolling mill

  • Influence of Roll Profile Configuration on High-Strength

    According to the characteristic of high-strength strip the roll profile configuration and change of CVC tandem cold mill are analyzed. Through the establishment of FEM model the influences of three representative forms of roll profile configuration on high-strength strip flatness control in CVC cold rolling mill are compared which are conventional back-up roll / CVC intermediate roll back

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  • THE PRINCIPLE FOR DESIGNING CVC-ROLL PROFILE AND THE

    CVC technology is very efficient for controlling strip shape and profile. The main softwares for developing CVC technology are the principle for designing CVC roll profile and the control model of CVC mills.The principle is presented in this paper. It is suggested that the S-shape of CVC rolls is composed of three components. The first one is a cubic basic curve which can be defined as the

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  • SOLUTIONS FOR ALUMINIUM ROLLING MILLS TECHNOLOGY

    Tandem cold-rolling mill Cold-rolling mill Slitting line Cut-to-length line Automatic high-bay store • For perfect cooling and contour control we provide DSR backup roll technology SmartCrown roll technology and 6-high stand design.

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  • AISTech Paper Form Version 8 140221Steel Plantech

    Those two separate functions make strip centering stably and accurately at the entry side of the mill. 5-stand Tandem Cold Mill Most modern Tandem Cold Mill of five (5) stands with all 6-high mill is provided. Positive and negative Roll Benders for Work Rolls and Intermediate Rolls Roll Shift Device for Intermediate Rolls are provided for

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  • Taper Roll Contour Design for Edge Drop Control of Non

    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

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  • Application of LVC Work Roll in Ultra-wide Hot Strip Mills

    Shape control characteristics of ultra-wide strip mill were analyzed and the result is that it has deficiencies in the aspect of shape control order to increase the shape control ability of ultra-wide hot strip mills linearly variable crown(LVC) work roll was developed.The shape adjustment ability of LVC varies linearly with strip width and its shape control performances are better than

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  • Integrated design of roll contours for strip edge drop and

    In conventional rolling mills the length of the contact line between the WR (work rolls) and the BR (backup rolls) (line PS in Fig. 2) in 4-high mill or between the WR (work rolls) and the IMR (intermediate rolls) (line EH in Fig. 2) in 6-high mill is longer than the width of strip rolled (line QR in Fig. 2a or line FG in Fig. 2b). The bending action on the WR exerted by the contact

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  • SOLUTIONS FOR ALUMINIUM ROLLING MILLS TECHNOLOGY

    Tandem cold-rolling mill Cold-rolling mill Slitting line Cut-to-length line Automatic high-bay store • For perfect cooling and contour control we provide DSR backup roll technology SmartCrown roll technology and 6-high stand design.

    Get Price
  • Winner s Engineering Solutions 4 High Rolling Mills

    conventional four–high mills work roll bending providing a way setting to influence strip shape and flatness within limits is considered an improvement on the rigid roll contour in conjunction with an online flatness measuring a partial automation is possible. 4- Hi Mill Specification. Special Mill Features

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  • Optimization Technology of Roll Contours during 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

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  • Intermediate roll contour of 6-hi UCM cold rolling mill

    Show full abstract then a VCR (varying contact backup roll) was designed for the rolling conditions of PL-TCM (pickling line combined with tandem cold rolling mill) and has been applied to 1700

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  • DE10208389A1Rolling mill for use in tandem-type rolling

    In JP A 57-202908 and JP A 62-275508 is a (hereinafter referred to as "UC mill stand") six-stage mill stand according to the state of the rolling technology especially for a Cold rolling mill disclosed wherein the above-mentioned UC mill stand Roller bending device for applying a bending force to a Work roll and an intermediate roll and at

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  • VCR and ASR technology for profile and flatness control in

    The roll contour pattern and variety of work and backup rolls in service and its effect on profile and flatness control performance in 1 700 mm hot strip mill at Wuhan Iron and Steel (Group) Corporation were tested and analyzed by the developed finite element models of different typical roll contours configurations. A rather smooth local work roll contour near strip edges and an increase in

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  • Optimization of Backup Roll Chamfer Shape for Four High

    The elastic deformation of roll system for CVC rolling mill is systematically analyzed using an influence function method.The distribution of contact pressure between rolls is calculated with three kinds of different chamfer shapes at the end of backup rolls and compared with that without chamfer.Optimal designs for parameters of straight step and circle chamfers are done respectively.As a

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  • SOLUTIONS FOR ALUMINIUM ROLLING MILLS TECHNOLOGY

    Tandem cold-rolling mill Cold-rolling mill Slitting line Cut-to-length line Automatic high-bay store • For perfect cooling and contour control we provide DSR backup roll technology SmartCrown roll technology and 6-high stand design.

    Get Price
  • A set-up model for tandem cold rolling millsScienceDirect

    Bryant and Spooner described the simple approach for drafting schedule in tandem cold rolling mills and reported that the key variables are roll force thermal crown and strip shape. More recently Dixit and Dixit 17 applied fuzzy set theory to obtain a reduction schedule in tandem cold rolling mill using the only one constraint of roll power.

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  • Cambering of Four High Cold Mill with the View of Reducing

    plex waves of normal four high cold mill effectively but also will reduce the contact between roller ends and minish roll consumption. This technology has created economic benefits for enterprises. Keywords Complex Waves Strip Shape Roll Contour Roll Contact Roll Consumption 1. Introduction In recent years with the rapid development of

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  • Optimization Technology of Roll Contours during 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

    Get Price
  • COLD ROLLING TECHNOLOGY SOLUTIONS FOR COLD

    TANDEM COLD ROLLING MILLS Production capacities of tandem cold mills using coil-to-coil operation are typically in the range of 600 000 to 1 000 000 t/year. Today many of the existing batch mills are extended and modernized to continuous mode operation and new mills are installed for continuous operation right from the start.

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  • Backup roll contour of a SmartCrown tandem cold rolling

    Request PDF Backup roll contour of a SmartCrown tandem cold rolling mill SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700

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  • Backup roll contour of 2250 CVC hot strip mill 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

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  • Prediction of Strip Profile in Rolling Process Using

    The mill is simulated by beams (rolls) on the infinite elastic half space (between rolls and strip). The roll deflection and indentation are calculated using the influence coefficients and Boussinesq s equations respectively. The roll contours in the contact zone can be expressed in terms of the influence coefficient and indentation matrices.

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  • (PDF) VCR and ASR technology for profile and flatness

    tandem cold rolling mill and then applied to the . which includes optimization and design of the work roll contour and varying contact back-up roll (VCR) plus backup roll contour analysis of

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  • Rolling Mill Backup Rolls Manufacturers and Kaida Roll

    Equipped with one of the best back up roll brands Kaida Roll Group is one of competitive skin pass mill roll temper mill roll tandem mill roll manufacturers and suppliers in China welcome to visit our website. Forged steel back-up roll is mainly used in 4-Hi mill and 6-Hi mill. The diameter of roll

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  • Roll Camber Design for Cold Rolling MillsScienceDirect

    ROLL CAMBER DESIGN FOR COLD ROLLING MILLS W. J. Edwards P. W. Johnston Associate Manager Research Officer Process Engineering Research and Technology Centre Newcastle. Fig. 4 shows the difference in stand 3 strip shape result­ing from the presence Or absence of backup roll taper for two tandem mills with facewidths of Z030 and 14Z0 m.m

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  • promotion of mobile jaw crusher

    roller machine jar mills lication of crusher plant in datiya copper and gold ore mining cement grinding small machine 8420 concretize sidewalk grinding Equipment estimation cost for robo sand project backup roll contour of a stcrown tandem cold rolling mill good quality gold ball mills for hot sale vertical shaft cement plants avaiility

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  • Backup roll contour of 2250 CVC hot strip mill 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

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  • Axial Force Analysis and Roll Contour Configuration 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

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  • SIEMENS VAI Company profile Aluminium Industry

    Mar 23 2015 · SIEMENS VAI Company profile Aluminium Industry 1. GLOBAL MEDIA COMMUNICATION LTD. 2 Siemens VAI Metals Technologies 2. SIEMENS VAI COMPANY PROFILE3 Index Your challenge 4 Roughing mill 5 Our solution 6 Our portfolio at a glance 7-8 Hot rolling mills 9-10 Cold rolling mills 11-12 Foil rolling mills 13-14 Life-cycle management 15-16 Mill modernization

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  • Taper Roll Contour Design for Edge Drop Control of Non

    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

    Get Price