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Steel Mills. Steel mills demand maximum performance of their equipment, able to withstand 24 hours a day and 7 days a week operations, with high efficiency and low maintenance. We understand that the high shock loads, dust, heat, and moisture in the corrosive environments of the steel industry require robust, reliable, and efficient products.
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A decoupling controller between the tension and speed of a steel processing line is proposed for bridle rolls of the steel mill drive system. With the controller, the tension of the steel strip is kept as a reference value, regardless of the line speed variations, and the speed of the strip is also kept, regardless of the tension variations. The controller generates a torque reference of each ...
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Title: Electric Drive in Steel Mill Creator: General Electric Company., Walter L. Greene Physical Dimensions: 12x18 Original Language: English Type: Painting Publisher: General Electric Company Rights: This digital image may be used for educational uses. Please cite as miSci- Museum of Innovation & Science. Prior written permission is required for any other use of the …
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drive motor and gearing and a fixed position horizontal milling machine spindle. An adjustable overhead arm ... Milling cutters are usually made of high-speed steel and are with its parts and angles identified. These parts and angles in ... sometimes referred to as two-lip end mill cutters, are used for shafts.
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drive system that has been operating for more than 25 years. ABB also replaced Mycron Steel's force motor valve for cold rolling mill roll gap control with the latest servo valve system. Continuing production with an obsolete automation and drive system is done with great risk of component failure.
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of their 41" diameter rotors to allow maximum steel throughput without damaging the new motors and shafts. In maximizing output, steel mills typically subject drive motors and shafts to damaging torque excursions that both shorten the life of the mill and cause frequent and expensive maintenance outages.
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99. The most suitable motor for a steel mill requiring a motor having high starting torque, wide speed range and precise speed control is (a) plain squirrel cage induction motor. (b) wound rotor induction motor. (c) dc series motor. (d) dc shunt motor.
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Low speed, high torque, reversible hydraulic motors are employed as direct drives for the rolls or spindles of hot rolling two high reversing mills. The use of these motors is cheaper in capital cost and speeds up the reversing time from 2.5 sec. for electric motor drives to 0.5 sec. The mills are used in steel mills, etc.
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16. Heavy-duty steel-works cranes having wide load variations are equipped with_____. a. Synchronous motors. b. Wound rotor induction motors. c. Plain squirrel cage induction motors. d. DC series motor . 17. The most suitable motor for a steel mill requiring a motor having high starting torque, wide spread range and precise speed control is ...
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LSI replaced 19 DC motors and drives with new Baldor Mill Duty Rated AC motors and PowerFlex 755 Variable Frequency Drives during a nine-day outage. 16 more were replaced in a second nine-day outage. Finally, a new "cockpit" approach was taken to the human machine interface (HMI). Four PanelView HMIs running FactoryTalk ME and three floor ...
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Steel Mill Reversing Drive Motor Torque Monitoring – Maximize steel throughput without damaging motors and shafts by monitoring rotor torque; Improve Hot/Cold Mill Throughput with Rotor Temperature Monitoring - Increase the production output of drive motors and generators by monitoring rotor winding temperature
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Drives in steel and rolling mills are exposed to extremely hard demands. Glowing steel, alternating operational modes and overloads spell out a high level of electrical and mechanical strain that calls for very sturdy designs. As a traditional supplier to heavy industry, VEM has developed over decades into a specialist for rolling mill drives.
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Step motor or servo motor can be selected as driving power. The gear of the gear pump is made of tungsten steel, and the surface of the pump body is hardened by tin coating, so that the pump can provide excellent pumping performance and longer service life in the application of abrasive liquid (such as pigment paint and pigment ink).
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7. Slip Ring Induction Motor. It has high starting torque and large overload capacity. The speed of slip ring induction motor can be changed up to 50% of its normal speed. Slip ring induction motor is used for those industrial drives which require high starting torque and speed control such as lifts, pumps, winding machines, printing presses, line shafts, elevators …
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These applications include ship propulsion, mine hoists and steel rolling mills. They also drive many other types of industrial equipment such as fan drives, Banbury mixers and extruders. To meet the needs of a broad range of applications, our rugged DC motors are available in sizes ranging from 22-inch to 12-foot armature diameters, with ...
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Relatively little power is needed in the transport phases with constant speed. Geared motors in steel mills, especially in the rolling mill, are calculated and selected with a high operating factor based on the acceleration torque due to the high acceleration work and the impact loads.
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Complete Drivetrain Repair For a Major North American Steel Mill. Timken Power Systems (TPS) coordinated an end-to-end solution. It began with the overhaul of a gearbox that operated a basic oxygen furnace (BOF) in the heart of a large steel producer's plant. It became a multi-phase upgrade and on-site install of an entire drivetrain ...
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Roll Drive Design Considerations for Steel Mill Rolling Many older designed mills utilize single drive systems (motor, coupling and speed reducer) to power several conveyor rolls. This design uses a single motor, coupling and speed reducer to drive the primary roll, while four to five other rolls are coupled, or slaved to the prime ...
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10,000 HP Main Drive Motor Alignment. Alignment performed on 10,000HP Main Drive Motor with an 11ft spacer shaft at a steel mill. An overhead crane was used to rotate the shaft. A Rotalign Ultra iS was used on the alignment job. Multi-point measurement mode was used and roughly 15 points were taken over 315 degrees of rotation.
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TMEIC2 installed its first AC adjustable-speed motor drive system for a rolling mill main stand in 1980; by January 2004 TMEIC had installed AC adjustable-speed motor drive systems on more than 700 main mill stands, coilers and reels, constituting more than 2,400 MW of installed main drive power. 2. TMEIC: includes equipment supplied by Toshiba
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Beck actuators provide tight, responsive position control under the most demanding modulating conditions found in steel mills. This precise control makes Beck actuators a key element for improved process efficiency, reduced energy costs and reduced emissions. Beck actuators are designed for continuous modulation, so there are no duty-cycle ...
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MOTORS. Mill Duty Dc Motors are offered at New India Electricals ltd specially designed for Steel Mill Drive applications. Motors are also used in Overhead Cranes & Cement Mill Drives. Motors confirm AISE technical report. Motors are supplied with full speed, half speed and quarter speed designs based on requirement.
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In the conventional layout of the hot strip mill, the motor room is usually parallel to the mill and lies between the hot mill building and the slab yard. The main mill drive motors are located in this area together with their respective gear reducers, switching and control equipment, motor generator sets, etc.
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Assuming further that the efficiencies of the motor and the transmission are both 0.9, the total power to drive the mill is obtained, by Eq. (5.8), as 8170 kW. Using the same numbers and Eq. (5.9), the total power is estimated to be 5350 kW. The upper bound theorem, designed to give conservative estimates, also allows the prediction of the ...
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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 roughing and finishing stands.
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An induction motor fed by GE's MV7000 Medium Voltage drive is one of the latest solutions designed and offered by GE for all rolling mill applications. As the induction motor provides more availability, reliability, lower maintenance and reduced electrical distribution equipment, this solution can contribute to significant savings for our ...
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Application: Steel Mill Reversing Drive Motor Torque Monitoring Understanding and controlling shaft torque for severe applications Industry: Steel Product: AT-4400 Precision Torque Digital Telemetry System Parameters measured: Torque When a large steel manufacturer needed to replace their tandem 6000 HP main drive
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