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Agc Control For Mill

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 …

Rolling Mill AGC Control System Design Based on Auto ...

Be aimed at the difficulty problems that entrance variation in thickness and hardness variation change a lot、back-up roll deflection、roller thermal expansion、the variation of lubricating fluid and flow compensation indeterminacy of servo mechanism in the system of steel plate strip, anti-interference controller is applied to rolling mill AGC control system for the first time in this paper.

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

A New Automatic Gauge Control System for a Reversing Cold ...

Fundamental study on automatic gauge control (AGC) of reversing cold rolling mill was carried out. The study includes the method of evaluating performance of AGC system and designing a control system according to the results of the study. It was concluded that the response of AGC …

adaptive_agc_control | First Control Systems AB

The control system will face a “new process” for each new strip entering the mill. This is exactly the kind of problems that are effectively solved by self-tuning regulators. First Control’s self-tuning AGC Control uses only one regulator setup for all rolling. The regulator adapts …

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.

Integrated Mill Control System | Prodcuts | SEA-CAS

SEA-CAS provides our Intigrated Mill Control System (IMCS) for complete AGC and Tension solution. This advance system allows customers to achieve a high level of tension performance.

Prices For Construction Materials Continue To ... - agc

The Associated General Contractors of America (AGC) is the leading association for the construction industry. AGC represents more than 27,000 firms, including over 6,500 of America’s leading general contractors, and over 9,000 specialty-contracting firms.

Associated General Contractors of California: AGC

The Associated General Contractors (AGC), the voice of the construction industry since 1920, is an organization of construction firms and industry-related companies committed to improving our physical environment through our commitment to the principles of Skill, Integrity and Responsibility.

[PDF] Optimization-based feedforward control of the strip ...

Abstract A new feedforward control approach for the thickness profile of the strip in a tandem hot rolling mill is developed. In industry, the automatic gauge control (AGC) concept is widely used for thickness control. The AGC has the disadvantage that it does not consider known disturbances from upstream entities. This is why a number of disturbance feedforward control concepts have been ...

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 ...

Improved AGC Control-2

in cold rolling using the self-adaptive AGC 2000X control system, developed by First Control. Long-term production experience from two installations will be shown, a new 12-high Mitsubishi cold rolling mill and an old Sendzimir mill. The improvements with self-adaptive control methods compared to conventional AGC control can be judge to at least

AGC - SlideShare

AGC. 1. BASICS OFBASICS OF AUTO GAUGE CONTROLAUTO GAUGE CONTROL. 2. .. IntroductionIntroduction RollingRolling is a is a metal formingmetal forming process in which metal stock is passed through a pair of rolls. process in which metal stock is passed through a pair of rolls. Rolling is classified according to the temperature of the metal ...

AGC | Scientific.Net

The dynamic behaviour of the rolling mill’s AGC (automatic gap adjustment) system mainly depends on the correct operation of hydraulic actuators and servo valves. These equipments are great value, planned maintenance is essential for reliable correct operation. The maintenance includes the refurbish of damaged, worn surfaces inside the ...

Shape and Gauge Control of Strip in a Cold Rolling Mill ...

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 internal stress difference along the width of the material.

(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 ...

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

Automatic Gauge Control System | Walco

The brain of our AGC system is an advanced Digital Signal Processor (DSP) motion control processor. Powered by an 80MHz Motorola DSP56303 processor, the DSP performs all AGC calculations providing critical analog and digital interfaces to the rolling mill.

Army Geospatial Center

The AGE GeoGlobe provides unique geospatial analysis tools and methods to assist with the visualization of both training and operational battle space environments. The GeoGlobe incorporates 3D digital models, maps, imagery, elevation, and vector data to create a …

NEVADA CHAPTER AGC | 5400 MILL STREET, RENO, NV 89502 - …

The AGC has dedicated itself to enriching the quality of future professionals in Nevada. Our chapter is designed to create a cohesive environment in the construction field for the purpose of creating unity among members, building a professional work environment, increasing work satisfaction, and improving job performance.

MetalsMaster AGC Automatic Guage Control

optimization and control parameters, quality data, control mode selection and fault conditions and diagnostics. Enhanced Visibility Real-time, intuitive human-machine interface (HMI) provides instant visibility into mill operating state, AGC and AFC performance, trends, alarms and process information so your operators know what’s

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, …

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

In this article the AGC (Automated Gauge Control) system, of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are

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 ...

Technological control for cold rolling processes

Thickness feedback control The basic control strategy is thickness feedback (monitor control) based on the measured thickness deviation at the exit side of the mill. The delay time, transport of the strip from the roll gap to the thickness gauge, essentially determines the control system’s dynamic response, particular at low rolling speed.

Sliding mode variable structure control for smith ...

Monitoring AGC system in 1450 mm tandem hot mill of a factory is shown in Fig. 1.Based on Fig. 1, HGC system is inner loop control system of monitoring AGC system.HGC system is a hydraulic position loop servo system with high precision and high response and it determines the basic performance of monitoring AGC system [].In finishing mill group, the last stand is the key stand of monitoring AGC ...

Automatic Gauge Control, AGC | Waterbury Farrel

Waterbury Farrel Automatic Gauge Control (AGC) Systems ensure close-tolerance strip at the push of a button. The system automatically maintains extremely tight gauge tolerances as the strip passes through the mill at up to 1,000 meters per minute. The Waterbury Farrel patented AGC monitors strip gauge and corrects any variation within milliseconds.

STABILITY OF PI CONTROLLER IN AGC FOR REVERSIBLE SINGLE ...

INTRODUCTION Feedback controller based on exit gauge measurement is an important method in automatic gauge control (AGC) of reversible single stand rolling mill. The difficulty of PI controller in AGC is the time delay between gauge measurement and gap control, which varies with velocity of exit strip. One of the suitable methods [3] for ...

Flying Gauge Change Control for Hot Strip Finishing Mill ...

FLYING GAUGE CHANGE CONTROL Fig.2 shows the configuration of an FGCC system for hot strip mills. The systems changes the target gauge of each stand's AGC (Automatic Gauge Control) sub­system. The roll speed is controlled by the OMFC (Optimal Mass Flow Control) sub­system. The FGCC system does not directly alter roll gap and roll speed settings.

pdf agc control for 20hi cold rolling mill

agc control for mill - flyinfo.co.in. pdf agc control for 20hi cold rolling mill. Products Our company is a manufacturer and exporter of the crushers, serving the crushing aggregate industry for 20 years.

Influence of mill modulus control gain on vibration in hot ...

The inner control loop is hydraulic automatic position control (HAPC), and the outer control loop is the mill modulus control AGC. The mill modulus control modifies the gap position to maintain a constant delivery strip thickness, and the gauge meter equation is used to estimate change in the stand exit strip thickness.

20Hi Cold Rolling Mill AGC - YouTube

http://www.hydraulic/en/content/?210.htmlAEMETEC digital hydraulic cold rolled plate automatic gauge control (AGC) system using high precision high fr...

[PDF] Hot Rolling Mill Hydraulic Gap Control ( HGC ...

In this article the AGC (Automated Gauge Control) system, of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are compensated and a rolling speed dependent, adaptive PI controller is developed to accomplish fine thickness control. The improved system has …

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