• Rolling of Metals University of Rhode Island

    –Apply longitudinal tension to the strip during rolling –back tension on the payoff reel or front tension on the takeup reel • Grind rolls with a camber to prevent crowning of the rolled strip • Radius of maximum camber point generally mm greater than at roll edges • Simulate camber by bending the rolls with applied moments. Flat Rolling Stages •Hot rolling of ingot or a ...

    Get Price
  • Rolling Mill Control Russula

    Cascade control uses the reduction concept (RFactor) to calculate the mill cascade speed reference. This parameter, directly related to rolling fundamentals, simplifies the setup and operator control. During production the loop and tension control automatically adjust the R Factor, ensuring minimum material stress between the stands. No matter if you have one strand or two we have the ...

    Get Price
  • PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON .

    Web Tension Measurements in the Paper Mill ... Concerning Wound Mill Roll Quality and Takeup Tension Control .....234 Y. Kataoka, Kataoka Machine Company, Ltd. The Flutter Mechanism of Sheet.....246 Y. Watanabe, S. Suzuki, Y. Sueoka and H. Kunirnau, Mitsubishi Heavy Industries, Ltd. Edge Flutter in Webs.....257 Y. B. Chang and P. M. Moretti, Oklahoma State University Computer Simulation .

    Get Price
  • Design of a robust thickness controller for a singlestand ...

    Abstract: We derive a mathematical model of a singlestand cold rolling mill and design control systems to improve the thickness precision while maintaining prescribed tension for the strip. On the basis of a linearized model of the rolling mill system, we propose a thickness controller using an internal model control (IMC) structure which effectively rejects periodic disturbances. We also ...

    Get Price
  • Decoupling Control and Simulation of Looper MIMO .

    An optimal multivatiable looper control system based on decoupling strategy has been developed for hot strip finishing mills. Based on the dynamic configuration of the coupling system, we can get the status space expression of the coupling loopers system. Through the tools of Matlab we make out of the transfer function of looper system. Based on DecoupingInbariable character theory and the ...

    Get Price
  • Rolling Mill Controls Free

    Rolling Mill Controls 2117 continually being advanced through the use of programmable digital hardware. These systems can use all available types of electrical drives and can be applied wherever speed is used for control of process variables. Advanced mill setup models can generate actuator references for tandem and singlestand cold and temper mills rolling any combination of ferrous ...

    Get Price
  • 1301 The Rolling of Aluminium: the Process and the Product

    the hot rolling mill is coiled for transport to the cold mill which might be on the same site or elsewhere. Cold mills, in a wide range of types and sizes are available; some are single stand, others 3 stand and some 5 stand (Figures and ). Cold rolling speeds vary but modern mills operate at exit speeds as high as 3000 m per minute. A modern complex including melting ...

    Get Price
  • Tension and torque tools to tighten and loosen industrial ...

    Overview all ITH tension and torque tools for tightening and loosening industrial bolted joints from M16 (5/8") and up: Bolt tensioning cylinders, hydraulic torque wrenches, electric, batterypowered and pneumatic nut runners, high pressure pumps, digital control systems and more.

    Get Price
  • DIGITAL OPTIMAL CONTROL OF MULTISTAND ROLLING MILLS .

    DIGITAL OPTIMAL CONTROL OF MULTISTAND ROLLING MILLS WITH MEASUREMENT AND INPUT DELAYS SHAHAB AMELIAN 1,*, ... thickness and tension control strategies, based on solving riccati equations [14, 15], intelligent strategies [16], model predictive control [17], and stochastic optimization algorithms [18]. In spite of all the existing methods, considerable attention is still paid toward ...

    Get Price
  • Forming Fabric Tensioning and Guiding Convergence ...

    Fabric tension is important because it impacts fabric wear, dewatering, and sheet formation. If fabric tension is not monitored and kept close to its recommended setting, there are undesirable consequences. Relatively high tension is desirable because it improves drainage. However, excessive wire tension actually reduces the size of the ...

    Get Price
  • Rolling Mill History | Metal Processing Machinery ...

    When most people think of a rolling mill, they visualize sizable machinery in ferrous (iron, carbon steel and stainless steels) and nonferrous (copper, brass, lead, etc.) integrated or electric arc furnace (EAF) steel mill of today, to small manually cranked rolling devices used at jewelers to reduce the thickness of the precious metal or impart a pattern on the surface of the metal to be ...

    Get Price
  • CONTROLLED ELONGATION MACHINES FOR PROCESSING LINES ...

    mills and tension levelers, with a focus on three models light, medium and heavy. Over the past decade, this has generated more than 100 satisfied customers in all parts of the world. The second step involved the creation of a new generation of multiroll tension levelers for tinplate production. Today, our products

    Get Price
  • The Hot Rolling Process California Steel Industries

    The roughing mill is made up of six independent rolling mill stands, the last four of which incorporate small vertical rolling mills called edgers. Slabs heated in the furnace until they glow bright orangeyellow are rolled through one stand at a time to produce socalled transfer bars suitable for finish rolling. Highpressure waterjet nozzles clean the oxidized iron, or scale, from the ...

    Get Price
  • What is the Best Tension for My Product?

    Good tension control is required to reduce waste and downtime. However, before you can effectively design much less operate tension controls, you must know what tension is best for your process and product. You must also know how much variability is tolerable. There are many places you might get answers to tension questions such as these. There are several publications that have suggested ...

    Get Price
  • Advanced Tension Control in Steel Rolling Mills IEEE ...

    Tension control systems for rolling mills have been a specific target of development because of their cost and impact on product quality. Schematic view of a rolling stand equipped with HiSection sensor Enabling Sensing Technologies • Key to bar/billet tension control is the availability of accurate interstand section measurements. • Usually only the final downstream section is measured ...

    Get Price
  • LaserSpeed Controls Tension Leveler in Cold Rolling Mill ...

    · LaserSpeed Controls Tension Leveler in Cold Rolling Mill ... by Beta LaserMike is being used by a steel manufacturer to accurately measure the length and speed of product to a control tension ...

    Get Price