Automated gauge control (AGC) system has taken a wide area of the recent studies that deals with hot and cold rolling mill. These studies had concentrated to …
The mill is equipped with a device for face precipitation and a sensor 6 of the diameter of the workpiece. The device for face precipitation is made in the form of a tray 8, an emphasis 9 and two hydraulic cylinders 11 and 10. The billet 7 is fed to the tray 8. The hydraulic cylinder 10 moves the anvil 9 upwards.
Technology Packages. Supply scope. Plate Mill - Roughing mill, Finishing mill, Edger. Pair Cross for Profile Control. Roll Shift for Roll Wear. Hydraulic AGC. Push Up Cylinder for Roll Pass Adjustment. Low Head Type Edger With Hydraulic AWC. Controlled Cooling During Rolling.
In view of the weak nonlinearity of the AGC cylinder [13] of the screw-down system, the mathematical model of the rolling mill is considered as Duffing equation with a small parameter, ε. When an excitation includes two frequency components effects on a non-linear system, the response with more frequencies generates [14].
Before Hydraulic AGC Cylinders became a standard fixture in flat rolling mills, electrical DC motors were used to adjust top rolls for roll gap adjustment. Different systems from Ward Leonard to SCR's controlled bridge rectifiers1 with or without circulating current were used to fasten the response of screw down motor controls.
leakage from automatic gauge cylinders (AGC) in the rolling mill / contamination inside the AGC. SOLUTION: A. lphaseal composite seals (page 11) - great sealing and wiping performance - low friction, no stick-slip effect - D-shaped energizing ring for great seal stability. 1
In rolling mill, the accuracy and quality of the strip exit thickness are very important factors. To realize high accuracy in the strip exit thickness, the Automatic Gauge Control (AGC) system is used. Because of roll eccentricity in backup rolls, the exit thickness deviates periodically. In this paper, we design PI controller in outer loop for the strip exit …
Hot and Cold Rolling. Rolling mill maintenance services for either rolling of steel, aluminum, or even copper are at the core of business for SMS group. Our regional workshops, located throughout the USA, specialize in the repair of nearly all process-critical components used in hot and cold rolling. ... AGC Cylinders, reels, mandrels, gearing ...
Overview of AGC system configuration of rolling mill . The AGC system adopts the two level PLC control scheme, which is a computer system which integrates the process communication of rolling, the parameter transfer, the AGC control and the fault alarm. ... The displacement sensor can be installed on the screw-down cylinder of the rolling mill ...
Description. In rolling mill, the accuracy & quality of strip thickness at exit are very important factors. To realize high accuracy in the strip exit thickness, the Automatic Gauge Control (AGC) system is used. HAGC cylinders with an integrated …
digital hydraulic cold rolled plate automatic gauge control (AGC) system using high precision high fr...
AGC (Automatic Gauge Control) - Roll force cylinders welded bronze guide in cylinder Roll force cylinders operate in the tough environment of steel mills, used in the manufacture of sheet and bar stock. Smooth and efficient operation of these cylinders is of utmost importance together with reliability and long life.
control. Cylinder failures can shut a mill down, and cylinders that are not operating properly can adversely impact strip or bar quality. Preventive maintenance, precision repair and accurate testing are the key to ensure AGC cylinder performance is reliable and consistently yields tight product tolerances for rolling precision.
Heavy duty Roll Force Cylinders find application in Automatic Gauge control systems (AGC) in Cold Rolling Mill Installations. These cylinders are designed and manufactured by Veljan, have been installed in United States of America, Canada, …
Research on AGC Cylinder Test System of Rolling-mill[J]. Shanghai Nonferrous Metals, 2015, 36(3): 112-115. AGC
cylinders are installed. The position of the cylinders is controlled by servo valves and the corresponding position controllers. This hydraulic servo is often called HGC (Hydraulic Gap Control) cylinder. The AGC system provides the reference value for the HGC positioning system. Figure 1 Schematic structure of a hot rolling mill
AGC servo hydraulic cylinder used for steel plant rolling mill Z67. Up to 5 years warranty. $65,000.00 / Piece. 1 Piece (Min. Order) 15 YRS CN. Supplier. Contact Supplier. 1/5. ... All standard rolling mill hydraulic cylinder are in stock with single-acting or double-acting cylinders. Customers can also purchase spare parts to build a machine ...
The flatness control in cold rolling mill is carried out through automatic flatness control (AFC). The control tasks which are to be achieved in the Level 1 closed-loop control for cold rolling mill concerns not only the thickness (AGC) but also the flatness (AFC). For a strip subject to cold rolling, the flatness is defined as the amount of ...
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The Force Feed Forward (FFF) System is the only hot strip mill AGC system in the world today which does not incorporate the BISRA principle for gage control. Instead, using a revolutionary control algorithm, FFF has proven in five installations in North and South America, that steelmakers need not …
Automatic rolling process is a high-speed system which always requires high-speed control and communication capabilities. Meanwhile, it is also a typical complex electromechanical system; distributed control has become the mainstream of computer control system for rolling mill. Generally, the control system adopts the 2-level control …
Waterbury Farrel has more than 200 20-Hi rolling mills in operation - more than any other manufacturer of cold rolling mills. Waterbury Farrel offers a complete line of rolling mills, together with material handling, AGC cylinders, thermal covers, down coilers and work roll side-shifting systems. The Waterbury Farrel name is the industry ...
Rolling Mill Lubrication. We have supplied the gear and bearing lubrication for the hot rolled strip mill with the highest output in the world, located in America. It requires specialist knowledge to design the inside of the tank for optimum water and air separation, especially when it comes to lubrication systems.
Hydraulic Agc Rolling Mill is becoming more and more popular in metal strip rolling industry for its high precision, high speed and high automation Screw down of Rolling Mill has options of mechanic type and hydraulic AGC type, . Mechanic type is composed of motor,speed reducer,brake,worm screw, spherical pad,etc. . 1/ Upper roll can be adjusted quickly and …
AGC hydraulic servo cylinder weight is bigger, is installed in mill housing crossbeam bottom, for depressing form; Built-in pressure magnetic appearance is installed on the servoBcylinder.When changing the AGC hydraulic servo cylinder, need hang the hydraulic cylinder pull bar, and press pull bar, AGC servoBcylinder and pressure magnetic appearance are extruded the cylinder …
Honeywell's Automatic Gauge Control (AGC) and Hydraulic Gap Control (HGC), incorporated with the MetalsMaster gauging system, enable mills to deliver the right gauge thickness with the least product variation. It also offers Target Adaptive control to increase yield, improve product quality and reduce scrap.
This study did not show the response of the entire hydraulic AGC system. Gao[17] et al developed a simplified model specifically for a 1100mm cold mill and compared the results with mill data; however, no performance comparison was provided. Rath[18] summarized the control system of cold rolling, but did not have detailed discussion on different
An AGC load sharing mechanism is also included to permit thickness corrections to be distributed over all available rolling stands according to a prescribed loading ratio. Product-dependent actuator sensitivities are computed by the mill setup models for …
cylinders are installed. The position of the cylinders is controlled by servo valves and the corresponding position controllers. This hydraulic servo is often called HGC (Hydraulic Gap Control) cylinder. The AGC system provides the reference value for the HGC positioning system. Figure 1 Schematic structure of a hot rolling mill
In rolling mill, the accuracy and quality of the strip exit hickness aret very important factors. To realize high accuracy in the strip exit thickness, the Automatic Gauge Control (AGC) system is used. Because of roll eccen-tricity in backup rolls, the exit thickness deviates periodically. In this paper, we design PI controller in outer loop
The hot rolling mill AGC system is used in a hot rolling mill. Description Hot-rolling mill AGC system and control method for rolling thereof Technical field The invention belongs to hot-rolling...