WEBRelease time: . Steel rolling mill machinery plays a crucial role in the steel manufacturing process. It is specialized equipment used to shape and transform raw steel into various finished products, such as sheets, plates, bars, wire, and structural sections. The machinery employs a process called rolling, which involves passing ...
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Roll Force and Roll Torque. Typical roll separating force and roll torque data, as a function of the reduction and at various roll surface speeds (20 and 160 rpm, leading to surface velocities of 262 and 2094 mm/s) are shown in Figures –, respectively. The lubricants and the emulsions used are also indied in Figures ...
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WEBMar 20, 2024 · At the same time, in order to ensure the stability of the main drive system of rolling mill after the occurrence of faults, an active faulttolerant controller is designed for the main drive system of rolling mill after obtaining the accurate fault reconfiguration value, which realizes the active faulttolerant control of the main drive system ...
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WEBFeb 3, 2006 · Equations are derived for the normal roll pressure, specific roll load and torque in hot rolling mills, using the condition for plastic deformation in rolling derived by Orowan, together with von Kármán's equation of equilibrium. Although applying strictly to the rolling of ideal plasticrigid materials, these equations may be applied to the rolling .
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WEBJan 1, 2008 · In multistand cold rolling mills an accurate synchronization of the mill drives is necessary for a good product quality and for a safe process operation. ... The calculation of roll force and torque in cold strip rolling with tensions. In Proc. Inst. Mech. Eng., volume 159, pages 144153, 1948. Axel Brickwedde, Frank Feldmann, and Nicolas ...
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WEBThe Calculation of Roll Force and Torque in Hot Rolling Mills. Go to citation Crossref Google Scholar. The theory of plasticity in relation to its engineering appliions. Go to citation Crossref Google Scholar. A Note on the Theory of Rolling with Tensions.
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WEBThis paper presents a completely new approach to the mechanics of the Sendzimir hot planetary rolling mill. Previous work on this subject, by R. Tovini, included determinations for the distribution of the advance of the strip, the draft, the rolling load, the torque and the horizontal backthrust for the whole range of positions which the planetary rolls made, .
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WEBApr 15, 1999 · In many commercial shaperolling mills the prime concern is to produce the appropriate crosssection using as few passes and as fast as possible, thereby increasing market satisfaction and productivity. ... (ANN) appliion to a hot strip mill to improve the model's prediction ability for rolling force and rolling torque, as a function of ...
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WEBMay 1, 2011 · Abstract. A new model for a type of rolling force and rolling torque for finishing stands of a hot strip mill was investigated. A new formula unifying rolling force and rolling torque coefficients ...
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WEBMotors for Metal Rolling Mills. AC adjustable speed motor drive systems are the preferred technology for new rolling mill installations and modernization projects. TMEIC designs and manufactures two types of AC solutions for this purpose. Salient pole synchronous motors that meet the high power and torque demands of a hot strip mill, as well as ...
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WEBAug 1, 2015 · It is shown that the energy consumption of an induction motor at a hot rolling mill can be improved with the introduction of FOC with a variable input reference compared to direct torque and flux ...
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WEBAbstract. Equations are derived for the normal roll pressure, specific roll load and torque in hot rolling mills, using the condition for plastic deformation in rolling derived by Orowan, together with von Kármán's equation of equilibrium. Although applying strictly to the rolling of ideal plasticrigid materials, these equations may be ...
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WEBJan 1, 2013 · By taking the 1780 rolling mill of Chengde Steel Co for example, the simulation and analysis were performed. The amplitudefrequency curves under different joint angles, damping coefficients, and nonlinear stiffness were given. ... the vertical additional moment is about % of the output torque of motor shaft, while the .
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WEBTherefore, AMO employs the EAS®HT torque limiting clutches in the mills, which reliably protect the drive line against damage. These clutches are positioned between the motor and the transmission, and limit the torque accurately to a set value: The maximum torque is 170,000 Nm, and the maximum speed 400 rpm. Protection at extremely high torques.
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WEBJan 1, 2009 · An attempt to reduce torque amplifiion factor (TAF) has been done for the roughing stands of a wide strip hot rolling mill. Drive acceleration method was used in order to close the open ...
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WEBRef. stated that for hot rolling mills, the maximum elastic torque on the main line motor section is 2–4 times more than the process torque required for a given draft. In this case, the transition from the dynamic torque of biting to the steadystate process torque occurs within – s and is accompanied by oscillations.
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WEBMay 31, 2023 · Your Capacity and Production Requirements. The first step in selecting a rolling mill is assessing your production requirements. Determine the desired capacity and volume of steel you need to process. Consider factors such as the thickness and width of the steel sheets or bars and the desired output speed.
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WEBTL;DR: In this paper, an artificial neural network (ANN) was applied to a hot strip mill to improve the model's prediction ability for rolling force and rolling torque, as a function of various process parameters, including rolling speed, percentage of thickness reduction, initial temperature of the strip and friction coefficient in the contact ...
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WEBThe torque of the main drive system is one of the most important force and energy parameters of the rolling mill, and the strain type torque online telemetry system is a practical method for measuring torque parameters. The strain gauges and transmitters on the rotating shaft are driven by a highfrequency induction power system.
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WEBApr 1, 2013 · The main objective of the present research is to develop a neural network model for a hot strip mill which is capable of predicting accurate rolling force and torque under various rolling conditions. A threedimensional finite element model has been developed to provide a data basis for training and validation of the neural network.
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WEBSep 1, 2007 · A kinematic analytical approach has been developed to predict the roll force, rolling torque and forward slip in thin hot strip continuous rolling under various rolling conditions. The approach is based on formulating a velocity field in the roll bite zone that expresses the effect of interfacial friction on the distribution of axial velocity and .
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WEB1. MCQ on Dynamics of Electric Drives. The section contains multiple choice questions and answers on loads types, speed quadrantal diagram, load torques that depends on path or position of load during motion, motor load combination dynamics, moment of inertia determination, electric drives steady state and transient stability. Types of Loads.
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WEBApr 15, 1999 · The speed of the rolling mill is set at 10 rpm, giving a roll surface velocity of mm s −1. The tests are conducted at initial temperatures of 900, 950, 1000, 1050 and 1100°C. ... Accurate computation of the roll force and torque when rolling with grooved rolls is considerably more complied than in flat rolling. There are essentially ...
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