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DOI: 10.4236/ENG.2014.61005 Corpus ID: 30768077. Strip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network @article{Hameed2014StripTC, title={Strip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network}, author={W. I. Hameed and K. Mohamad}, journal={Engineering}, …
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corporation production mill. The computer simulation have been used to study chatters and showed the variation of natural frequency with variety of factors viz. friction, rolling speed, tension, reduction and strip width. The stability criterion for rolling mill was derived analytically using the factors causing negative and positive damping [8].
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Abstract. This paper is concerned with the active compensation of the roll-eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll ...
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ARTICS Hot Rolling Mills Real time control for Hot Rolling Mills. With more than 50 years of experience, Nidec Industrial Solutions has developed a vast array of functions based on auto-adaptive mathematical models that optimize rolling schedule calculations in real time.
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An encoderless roll eccentricity compensation system for rolling mills and sheet casters; Shop floor inventory and production tracking systems for hot rolled plate and coiled products and for sheet finishing operations; A standard hydraulic mill stand control product for rolling mills
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an off-line eccentricity identification method which is performed when there is no plate rolling through the mill and with the top work roll and the bottom work roll in tight contact, said off-line eccentricity identification method determining the eccentricity values of N first points which equally divide a circumference of the top backup roll ...
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A Cold Rolling Mill rolls, in subsequent short passes(due to the relative thick material), coiled strip from a thickness of up to 8 mm (coming from Hot Rolling Mill) down to 0.2 mm; the mill is designed with high rolling force and power capability and efficient and fast coil handling to minimize the waiting time. A Foil Rolling Mill rolls, in ...
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In a four-high rolling mill stand, the effective be rationally related to each other. The paper presents roll eccentricity can be a sum of four periodic a multiple repetitive controller structure that can components. If the top and bottom rolls have nearly compensate for such a disturbance.
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Rolling Mill with 5 Rollers - Pattern, Flat, and Wire - 28-280. JewelrySuppliesNW. From shop JewelrySuppliesNW. 5 out of 5 stars. (5,427) 5,427 reviews. $330.00 FREE shipping. Only 1 available and it's in 1 person's cart. Favorite.
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Direct tension control and coil eccentricity compensation Flatness control (skewing, bending, partial cooling) Mathematical process models and simulation An ABB in-house non-linear mathematical model was used for the pre-commissioning of the rolling mill. This consists of modular structures for 1- to n-stand rolling mills.
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Inline measurement of roll spindle torque for rolling mills Roll Eccentricity Expert Elimination of a known strip thickness quality disturbance from rolls Reference Story: Advanced Aluminum Cold Rolling Mill Customer: C. S. Aluminium Corporation. Type of Plant: Non・Reversing ...
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Rolling Mill (or roll stand or steel rolling mill) is a machine in which all the equipment for metal rolling like rolls, bearings, housing, motors, frame, power system, etc are set up to perform a metal rolling operation. In steel rolling mills, workpiece having greater thickness is fed through the rollers and the final workpiece with reduced ...
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Roll eccentricity is ubiquitous in strip mills, which has a periodic impact on the strip thickness difference. Roll eccentricity compensation is an important part of the automatic gauge control system. Most roll eccentricity compensations extract the roll eccentricity based on the frequency domain analysis of the rolling …
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The eccentricity disturbance is approximately periodic and its frequency is a function of the rolling speed. A reasonable model for this disturbance is a second-order bandpass filter driven by white noise. This leads to the following generic model for each axis of the rolling process.
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SIMULATION RESULTS In eccentricity control, the following practical considerations apply to production rolling mills and thus should be cons idered in the des ign of relevant simulation studies: • the incoming feed can introduce periodic disturbances in the form of hot rolled thickness disturbances or uncoiler induced tension fluctuations ...
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The roll eccentricity in a rolling mill may define the limit of achievable thickness tolerances and thus is subject of interest for the automation equipment in hot rolling mills as well as in cold rolling mills. Today's demand on thickness tolerances less than 0.8% require efficient methods for roll eccentricity identification and compensation.
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An Algorithm of Diagnosing Eccentricity in Single Stand Rolling Mill Ths paper presents an algorithm of detecting eccentricity signal and diagnosing the cause in rolling process. A designed technique uses only the outputs of load cell and tachorreter, which are generally utilized in rolling process, and need not any acklitional sensors.
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Rolling Process: Definition, Working, Application, Defects, Type of Rolling Mills [PDF] Written by Saswata Baksi in Manufacturing Process. Rolling is the deformation process of a metal that is widely used in the metal forming process. It is done by passing the strip of the metal between the rollers. This paper discussion will be made about the ...
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Roll eccentricity is a periodic disturbance caused by a structure of back up rolls in rolling mills, and it affects product thickness accuracy. It cannot be measured directly by sensors, so it should be identified by measured thickness or measured roll force. When there is a large difference of diameters between top and bottom back up roll, the performance of roll eccentricity control using ...
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20-High Cold Rolling Mill. Feature Highlights of the 20-High Rolling Mill. 1. Wide range of thickness and width for different type of steel strips. Thickness: 0.05-1.2 mm; width: 50 - 1250 mm. Rolling Process Brief. The rolling process varies depending on customer's requirement for strip thickness.
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DOI: 10.4236/ENG.2014.61005 Corpus ID: 30768077. Strip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network @article{Hameed2014StripTC, title={Strip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network}, author={W. I. Hameed and K. Mohamad}, journal={Engineering}, …
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Machinery & Equipment / Rolling Mill Equipment / 4 High Rolling Mills. Have One to Sell? 4 High Rolling Mills. Manufacturers. Location. Search by Keywords. 23 Results. View All Listings. Sort by. Show/Hide Photos. 1.62" x 5.25" x 7.5" Fenn #4-053-C, rolling mill, 4 …
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Roll Eccentricity Control for Strip Rolling Mills . Awtm/ia Abstract An in depth review of the roll eccentricity control design problem is provided which encompasses a number of recent novel design contributions and includes experimental results from two separate steel tandem cold rolling mill installations A unifying approach to eccentricity control nables the diverse range of published
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LPR offers forged steel rolls and cast steel rolls to steel mills, steel processing lines and for machine makers that supply to steel rolling mills. Product range includes forged steel work rolls, tension leveling rolls, bridle rolls, furnace rolls, deflector rolls, pinch roll assemblies and roller tables.
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The Experimental Research Of Eccentricity Compensation In 1370 Cold Strip Mill Gauge Control System: 8 : Study On Flatness Control For Foil And Thin Strip Cold Rolling Process: 9 : Study For The Control Of Gauge And Flatness In Cold Rolling And Intelligent Optimization: 10 : Research Of The Flatness Control System On Tandem Cold Mill
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A theoretical analysis has shown that axial slipping of the sleeve on the roll arbor rather than plastic deformation of the roll necks may be the cause of backup-roll eccentricity on cold-rolling mills. The force levels required to initiate the slipping motion are less …
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Roll eccentricity is not part of the controller but must be considered to be consistent with data reported from operating mills which . Figure 3. Effects of roll eccentricity on output strip thick- ness. usually includes its effects. The eccentricity components remaining in the mill …
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