shape control in cold rolled mill
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Shape and Gauge Control of Strip in a Cold Rolling
2020-10-6 Comprehensive control of the surface roughness and shape of a two stand cold reversing mill is achieved by the optimization of the process parameters, such as rolling force and tension. The rolling force, strip elongation rate, and tension of rolling mill are optimized to achieve comprehensive control of the surface quality and shape
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Strip Thickness Control of Cold Rolling Mill with Roll ...
2014-1-13 In the cold rolling process and the precision is strip thickness of cold rolled strips of key quality products. Conventional Automatic roll gap Control (where Gauge, AGC) system used for Automatic correction strip thick-ness accuracy [9]. One of the conventional control strat-egy of strip thickness is using of BISRA measurements
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Research and Development Trend of Shape Control
2017-7-19 Shape is an important quality index of cold rolling strip. Up to now, many problems in the shape control domain have not been solved satisfactorily, and a review on the research progress in the shape control domain can help to seek new breakthrough directions. In the past 10 years, researches and applications of shape control models, shape control means, shape detection technology, and shape ...
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Shape Control in Cluster Mills - Rolling Mill Technology ...
2009-11-6 Shape Control in Cluster Mills Michael Sendzimir, 1993 Cluster mills first came into existence in the 1930s. They are characterized by small-diameter work rolls that are supported by a cluster of rolls as shown in figure 1 (which shows the location of eight backing assembly shafts: "A" through "H" containing eccentric saddles and bearings).
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ROBUST SHAPE CONTROL IN A SENDZIMIR COLD
2013-7-11 Robust Shape Control in a Sendzimir Cold-Rolling Steel Mill T(s) = GK(s)(1 + GK(s)) a (5) is the complementary sensitivity function, which determines robust stability and measurement (shapemeter) noise attenuation. The components considered in a robust control design are detailed in Fig. 3.
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Shape control of alloy steel rolled by sendzimir mill ...
Abstract. In order to improve quarter waves occurred in the wide and thin gauged alloy steel rolled by 20-high sendzimir mill, a computer simulation based on the divided element method and an actual cold rolling experiment were carried out. Quarter waves were simulated by elastic deformation analysis of rolls considering bending deformation of back ...
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JSW Cold Rolling Mills Widest Cold Rolling Mill for ...
Pickling Line coupled to Tandem Cold Mill (PLTCM) Every aspect of JSW PLTCM is designed to add precision and quality control to the cold rolled process. In this, pickling line is linked with cold rolling mill, which provides better shape control, delivers significant improvements with regard to mill productivity, yield, and production as a result of the elimination of strip threading and tailing-out operations.
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Shape Detecting and Shape Control of Cold Rolling
Based on the shape detecting principle and the DSP (Digital Signal Processing) technology, a high-precision shape detecting system of cold rolling strip is developed to meet industrial application. It was successfully used in Angang 1250 mm HC 6-high reversible cold rolling mill.
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shape control in cold rolled mill - strechytrnavsky.cz
Aug 07, 2020 cold-rolled strip products, the shape quality The results show that the new intermediate roll contour markedly enhance profile and flatness control ability of rolling mill get price ROBUST SHAPE CONTROL IN A SENDZIMIR COLD-ROLLING
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Control Strategies of Asymmetric Strip Shape in Six
2011-9-1 On one hand, artificial neural networks (ANN) method was applied to strip shape control. A fuzzy control algorithm was devel- oped to control the cold-rolled strip with symmetric irregular shapes by J Y Jung et alcg-'O1 and QIAO Jun-fei et alC1".
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Shape Detection and Control System of Cold Rolling
【Abstract】For the complex shape problems of cold rolling strips with a large width-thickness ratio, according to the division of shape-detecting units, the comprehensive compensation for process errors, the asymmetrical high-order shape pattern recognition, the shape statistical evaluation, and the shape coordinated control, the physical mechanisms influencing the shape-control precision ...
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Development of high-precise shape control technology in
a 20-high Sendzimir mill and developed shape control tech-nology. However, there has been no report on shape analysis technology of 20-high Sendzimir mills considering the cha-racteristics of FSBA. First, a simulation model for predicting the shape of cold-rolled strips in 20-high Sendzimir mills was
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JPS59223107A - Shape control device for rolling mill ...
PURPOSE:To produce stably a strip having an excellent shape in the stage of performing simultaneously plural stages of rolling with a cold rolling mill having a large rolling reduction by providing a bend to guide rollers for the strip to be rolled or ruggedness to the cylindrical part thereof. CONSTITUTION:A strip 1 which is a material to be rolled is once detached from work rolls and enters ...
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Strip Thickness Control of Cold Rolling Mill with Roll ...
2014-1-13 In the cold rolling process and the precision is strip thickness of cold rolled strips of key quality products. Conventional Automatic roll gap Control (where Gauge, AGC) system used for Automatic correction strip thick-ness accuracy [9]. One of the conventional control strat-egy of strip thickness is using of BISRA measurements
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Control Strategies of Asymmetric Strip Shape in Six
It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production. A roll system and strip coupled model of six-high cold rolling mill was established with finite element method to estimate the effect of intermediate roll shifting, tilting, symmetric and asymmetric bending technologies on strip profile. To reduce asymmetric defects of strip shape as much ...
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Fuzzy-control simulation of cross-sectional shape in six ...
2016-7-6 cold mill, Steady- and non-steady state control simulations of irregular cross-sectional strip shapes and the stability of the currently applied fuzzy control scheme have been investigated. The currently applied fuzzy control scheme is found to be successful in reducing the irregularity of the cross-sectional shape of the cold-rolled thin steel ...
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Technological packages › Flat › Q-SHAPE CONTROL ‹
Q-SHAPE CONTROL. Crown and flatness control systems. BENEFITS. Reduction in cost of quality. Increased mill availability and production consistency. Shorter processing time in downstream production facilities such as cold rolling mills because of superior strip shape. Highest realization on rolled products due to excellent strip quality.
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Cold rolling shape defects of stainless steel wide strips
2010-12-9 Cold rolling shape defects of stainless steel wide strips Chiran Andrei, Moisa Bogdan, Nicolescu Georgian, Priceputu Ionut, Bacinschi Zorica Advances in Control, Chemical Engineering, Civil Engineering and Mechanical Engineering ISBN: 978-960-474-251-6 154 ... be rolled before the mill gets warm again. Thus, the temperature of the mill is ...
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ROLLED STRIP SHAPE CONTROL USING WORK ROLL
We claim 1. A method of controlling the shape of a rolled strip delivered from a rolling mill which contains a work roll and means to vary roll force created by said work roll, comprising: rolling a strip to final gauge while subjecting said strip to from about 0.25 percent to about 6 percent elongation in length while using a work roll size and a roll force within a range that, for said roll ...
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Aluminum Cold Rolling Mills by Primetals Technologies
ALUMINUM COLD ROLLING MILL — A SINGLE HIGH-PRECISION MILL FOR BOTH BREAKDOWN AND FINISHING. Primetals Technologies' aluminum cold rolling mills offer a blend of innovative design and proven technology for both new and revamp projects. This enables strip to be produced at very tight tolerances and productivity levels resulting in maximum yield.
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Development of high-precise shape control technology in
a 20-high Sendzimir mill and developed shape control tech-nology. However, there has been no report on shape analysis technology of 20-high Sendzimir mills considering the cha-racteristics of FSBA. First, a simulation model for predicting the shape of cold-rolled strips in 20-high Sendzimir mills was
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Flatness Control System of Cold Rolling Process with ...
2020-4-9 The automatic shape control system with a closed loop of a shape roll and a rolling mill contributes to stable production of high-quality products. (a) Playback of control status (b) Shape classify Fig. 13 Screen sample of shape data review Fig. 14 Example of
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Technological packages › Flat › Q-SHAPE CONTROL ‹
Q-SHAPE CONTROL. Crown and flatness control systems. BENEFITS. Reduction in cost of quality. Increased mill availability and production consistency. Shorter processing time in downstream production facilities such as cold rolling mills because of superior strip shape. Highest realization on rolled products due to excellent strip quality.
دردشة على الإنترنت Read More -
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Fuzzy-control simulation of cross-sectional shape in six ...
2016-7-6 cold mill, Steady- and non-steady state control simulations of irregular cross-sectional strip shapes and the stability of the currently applied fuzzy control scheme have been investigated. The currently applied fuzzy control scheme is found to be successful in reducing the irregularity of the cross-sectional shape of the cold-rolled thin steel ...
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Prediction of shape defects over length of cold rolled ...
Abstract A model based on an artificial neural network (ANN) has been developed for prediction of flatness of cold rolled (CR) sheet in a tandem cold rolling mill for white goods applications. Various process parameters including roll bending, roll shifting, tensions between stands etc., which affect flatness of CR sheet are considered in the model.
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ROLLING MILL APPARATUS AND METHOD OF SHAPE
The rolling mill apparatus according to claim 1, wherein said spray portion is provided with a high-temperature spray nozzle and a low-temperature spray nozzle which spray a coolant at different temperatures; and, said shape control portion has a first control mode in which, when a convexity considered to be a change in shape in said rolled ...
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Cold Rolled Steel - Alupanorama
2019-11-29 Cold Rolled Steel. Uniform surface finish. Tight thickness tolerances. High degree of formability. Outstanding shape control (flatness) Cold Rolled Steel is a mill product made with a high degree of gauge accuracy and uniformity of physical characteristics. The smooth deoxidized matte finish gives an excellent base for paint, lacquer and enamel.
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ROLLED STRIP SHAPE CONTROL USING WORK ROLL
We claim 1. A method of controlling the shape of a rolled strip delivered from a rolling mill which contains a work roll and means to vary roll force created by said work roll, comprising: rolling a strip to final gauge while subjecting said strip to from about 0.25 percent to about 6 percent elongation in length while using a work roll size and a roll force within a range that, for said roll ...
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3D FEM analysis of strip shape during multi-pass rolling ...
2020-10-13 Cold rolled strips are widely used in various aspects of national economy such as electric works, automobile, home appliance and light industry. Besides the increasing requirement for quantity of cold rolled strips, customers have been paying more and more attention to the strip shape quality of the rolled products [1].
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Quality Improvement in Finished Cold Rolled - IJSER
2016-9-9 Practically the all defects in cold rolling inspected before dispatching the material to the customer at skin pass mill. RC Inspection wings generally focused over four “S” i.e. Shape, Size, Surface and Safety during their inspection. Cold rolling improves the surface finish and holds tighter tolerances. This will certainly affect the quality
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