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Cold Rolling Mill Automation System – Detailed Case …

The AGC and ITC systems were implemented in the Reliance Automax mill drive controllers. Hydraulic gap control (HGC) and work roll bending pressure regulation were performed by discrete hardware with target reference generation by the mill drive controllers.

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AGC CYLINDER TESTING AND REPAIR - SMSgroup

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 …

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Automatic Gauge Control | Prodcuts | SEA-CAS

SEA-CAS provides our Automatic Gauge Control (AGC) for all types of cold rolling mills. Providing basic control from feedback to the more advanced massflow, SPC included. Seemless machine integration with discrete digital I/O or fieldbus communication.

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Automatic Gain Control Agc Algorithm Users Guide Epdf …

Title: Automatic Gain Control Agc Algorithm Users Guide Epdf Download Author: Institute of Electrical & Electronics Engineers(IEEE),SEG Books,Apress,Artech House,Springer,Plural Publishing,Springer Science & Business Media,Academic Press,CRC Press,Circuit Cellar,John Wiley & Sons,Elsevier,BiblioGov,Springer Nature,PageFree Publishing, Inc.,Cambridge University …

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Technology and Products of JFE Steel's Three Plate Mills

3.1.1 Thickness control technology Thickness control is the most basic technology in plate rolling. At its 3 plate mills, JFE Steel has con-structed a plate thickness control system comprising high-response AGC (hydraulic automatic gauge control), sensors such as the γ-ray thickness gauge, and high-accuracy computer models, thereby establishing an

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Automatic control methods and devices for rolling hills ...

BACKGROUND OF THE INVENTION. 1. Field of the Invention . The present invention relates to automatic control methods and devices for rolling mills, and particularly to automatic strip thickness …

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Process computer system :Steel systems (Steel plant ...

This increases AGC accuracy. Mill Pacing Control. Mill pacing controls forecast time schedules of the entry facility, rolling mill, and delivery facility. This optimizes entry facility (Pickling) speed and rolling …

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Hot Rolling Mill Hydraulic Gap Control (HGC) …

2 AGC Control Tasks The rolling accuracy mainly depends on the automated gauge control (AGC) performance. The main tasks of an AGC system include: Mill stretch compensation Lock-on gauge control Work roll thermal expansion compensation Oil film compensation of back-up roll bearings Work roll bending Tapering

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The Core Control Strategy Adapted to Different AGC Control ...

The application results of the control strategy in the power plant show that the optimized control logic can meet the load regulation requirements of different AGC modes for the lignite burning unit, and the steam temperature and steam pressure control effect is good in the process.

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Automatic Gain Control Agc Algorithm Users Guide Epdf …

Title: Automatic Gain Control Agc Algorithm Users Guide Epdf Download Author: Institute of Electrical & Electronics Engineers(IEEE),SEG Books,Apress,Artech House,Springer,Plural Publishing,Springer …

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Automatic Gauge Control in Rolling Process Based on ...

AGC thickness control of rolling mill is a control system with time delay; traditional AGC control methods cannot get satisfying control performance [13, 14]. According to control theory, to cope with the time-delay problem, we can take the Smith predictor scheme.

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Rolling Mills | Metal Processing Machinery | American Steel

AGC is computer controlled with hydraulic low-friction cylinders, servo-valves, and high-resolution linear encoders. PC and PLC based controls are used for implementing proven DGC and thickness gauge control for final thickness monitoring and control. The control console is an operator friendly HMI touch screen for digital and analog data display.

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Strip Thickness Control of Cold Rolling Mill with Roll ...

types of Automatic Gauge Control (AGC) methods have been developed for hot or cold mill processes. The Brit-ish Iron and SteelResearch Association (B1SRA) AGC method based on the gaug meter principle and the feede forward AGC method using the delivery time of the strip have been widely utilized in steel rolling mills [3].

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Automation and Thickness Control in Hot Strip Mill – IspatGuru

Fig 1 Structure of a typical automation system for hot strip mill process. Level 0 – It is the lowest level of control and includes, for example, the control loops for hydraulic capsules used to position the rolls in the rolling mills and for the main electric motors powering the mill.. Level 1 – It is primarily concerned with in-piece control. At this level, the quality parameters such as ...

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Submarine Steel Plates made by Brant Hydraulics AGC ...

Submarine Steel Plates made by Brant Hydraulics AGC Automatic Gauge Control cylinder, The hydraulic AGC cylinder manufactured by Brant Hydraulics is the heart for making submarine steel …

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Decoupling Predictive Control of Strip Flatness and ...

The control system regarding flatness and thickness of the strip in tandem cold rolling mill is generally multivariate, non-linear, and strong-coupling. In this paper, a decoupling predictive …

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Galvanizing and Prepainting Process Lines | United Iron ...

Cold Mill comes with a Hydraulic AGC (Auto Gauge Control) ensuring close control thickness (within +/- 5 microns) Non-contact type X-Ray Gauges for thickness measurement with very high accuracy High …

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Automatic Gauge Control (AGC)/ Hydraulic Gap Control (HGC)

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, …

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An Expert PI Controller with Dead Time Compensation of ...

Monitor automatic gauge control (AGC) based on hydraulic roll gap control system is widely used in modern strip rolling mills [4–7]. In monitor AGC system, gauge meter is used to measure strip gauge derivation, which is installed at the delivery side of the finishing mill. The strip thickness can be controlled by adjusting the roll gap.

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(PDF) Hot rolling mill hydraulic gap control (HGC ...

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 improve the mill stretch design and ...

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Algorithm design and application of novel GM-AGC based on ...

The novel GM-AGC system has been applied successfully in a hot strip mill, the application results show that the thickness control precision is improved significantly, with the novel …

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Improvement of Accuracy for Gauge and Elongation Control ...

above control systems, a desired elongation is realized by control-ling the rolling force of the mill by a hydraulic screw-down control system. 2.3 AEC for skin pass mill of continuous processing line 2.3.1 Conventional AEC methods and their problems In most cases, an …

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Optimization of a Cold Rolling Mill - Thermo Fisher Scientific

why Automatic Gauge Control (AGC) is an essential component of modern rolling mills. Comprehensive AGC algorithms incorporate readings from dozens of sensors around the mill. Some of the key AGC input parameters are speed and tension. (See Figure 1) Conservation of mass dictates that the mass per unit time entering the mill must equal the

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Hot Rolling Mill Hydraulic Gap Control (HGC) thickness ...

2 AGC Control Tasks The rolling accuracy mainly depends on the automated gauge control (AGC) performance. The main tasks of an AGC system include: Mill stretch compensation Lock-on gauge control Work roll thermal expansion compensation Oil film compensation of back-up roll bearings Work roll bending Tapering

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Rolling mills | First Control Systems AB

FirstOpNet DCS system for Cold Rolling Mills with adaptive control. The DCS control system designed by First Control is based on modern control technology with self-tuning control to achieve …

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Machine Equipments_TOKO GROUP - tokoc.com

Control methods: common electric pressing down and hydraulic pressing down through AGC system. 3. Equipped with hydraulic bending working rollers which can fast adjust the gibbous degree of rollers to …

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Strip Thickness Control of Cold Rolling Mill with Roll ...

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 thickness while PD controller is ...

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HUNGER Hydraulics USA: AGC (Automatic Gauge Control ...

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 …

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Research on Intelligence of AGC System in Hot Strip Mill ...

AGC Algorithm HAPC ΔS HAPC Mill-Rolling Force S P 1ms P S S* Figure. 1. Siemens double-loop AGC control system diagram The Siemens thickness control system consists of the rolling force AGC (RF-AGC) and the monitoring AGC (MN-AGC). Which F1~F3 stands use RF-AGC, and F4~F6 stands use two control methods of RF-AGC and MN-AGC.

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US3851509A - Rolling mill gauge control method and ...

US3851509A US30372572A US3851509A US 3851509 A US3851509 A US 3851509A US 30372572 A US30372572 A US 30372572A US 3851509 A US3851509 A US 3851509A Authority US United States Prior art keywords roll gauge roll stand stand speed Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

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US Steel Mon Valley Works FFF System

Automatic systems were being considered to control the finishing mill, including mill setup, automatic gauge control (AGC), and run-out table spray control. As the finishing mill had older screwdown systems driven by electric motors and older looper systems, AGC upgrading solutions were evaluated based on performance, installation schedule, and ...

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4HI Cold Rolling Mill with AGC - YouTube

Video of a 4HI Cold Rolling Mill with Automatic Gauge Control, commissioned by MNC

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An optimized variable structure control for hydraulic AGC ...

The dynamic matrix control has succeeded to be applied in the industry field, so it is indispensable and feasible to explore its application in the hydraulic AGC system of the cold rolling mill.

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