closed loop integrated gauge and crown control for rolling mills

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JPB2 - クラスタミルのワークロールシフトびシフ …

the closed-loop control of camb er and wedge in a hot strip mill for the production of steel is reported. In the literature the relatio n between wedge and ca mber (see [Shi91] and references

MetalsMaster AFC Automatic Flatness Control

With complete closed loop control of the zinc coating in full automatic mode, Primetals Technologies Dynawipe air knives enable accurate coating of a wide range of strip gauges and widths with the most optimized zinc consumption. Skin-pass mill and tension leveller

Cold Rolling Mills - Achenbach - Principals | Hi-Tech ...

Jun 01, 1996· Roll bending methods of crown control in four-high plate mills. Journal of the Iron and Steel Institute Nov., 1088­1098. Shohet~ K.N. and N.A. Townsend (1971). Flatness and control in plate rolling. Journal of the Iron and Steel Institute Oct., 769-77.5. Young, .LA.. (1979). Ne"," control systems evaluated for hot strip mills…

A New Dynamic Simulator and an Open CACSD Environment for ...

Aist Mass Flow Control For Intercritical Rolling In Hot Mi. Mass flow control for intercritical rolling in hot mills g.Hearns and t.S.Bilkhu ge energy, power conversion boughton road, rugby cv21 1bu, uk tel 44 0 1788 563659 gerald.Hearnsge, tony.Bilkhuge keywords hot strip mill, gauge control, looper control…

Plate Mill Systems | TMEIC

the rolling force and the necessary torque applied by the motor. High reduction schedules combined with the requirement to produce a widening range of material cross-sections and a more varied range of softer and harder materials, results in increasingly greater challenges in the control of

Welcome to China Nonferrous Metals Processing Technology ...

May 18, 2018· Slabs are converted to plates in plate rolling mills. These plates have less thickness than width. Strip mills convert these plates into strips which are transformed to sheets ih a sheet mill. Cold rolling is normally used for producing sheets of good quality of uniform gauge. Hot rolling …

Optimization-based automatic flatness control in cold ...

Achenbach OPTIMILL®. Cold Rolling Mills. Achenbach strip rolling mills reliably produce best strip qualities even at maximum rolling speeds, maximum rolling widths and highest coil weights. Designed either as 6-high or 4-high rolling mills they are always tailored to the specific operation purpose. Special applications, e.g. as bright rolling mills, require the 2-high rolling mill design.

Processes | Free Full-Text | Absolute Stability Condition ...

Apr 01, 2010· Each rolling stand of the mill is composed of a stack of rolls. For a 6-high mill the rolls are named respectively work roll – WR (i.e. the roll in contact with the material), back-up roll – BUR (the biggest roll at the top controlled by an hydraulic cylinder) and the intermediate roll – IR, placed in the middle between the work and the back-up roll (see Fig. 1).

Werner W. Eibe Inventions, Patents and Patent Applications ...

In order to solve the problem of flatness defects and roll spalling caused by rolling thin gauge strip in the 1 500 mm UCM (6-high middle rolls shift type HC-mill with middle roll bender) cold ...

Looper and tension control in hot rolling mills: A survey ...

Nov 12, 2013· 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

Shape Control in Cluster Mills - Rolling Mill Technology ...

Closed loop integrated gauge and crown control for rolling mills US05/808,797 Expired - Lifetime USA (en) : : Closed loop integrated gauge and crown control for rolling mills

State of the art in hot rolling process control

JPB2 JPA JPA JPB2 JP B2 JP B2 JP B2 JP A JP A JP A JP A JP A JP A JP B2 JP B2 JP B2 Authority JP Japan Prior art keywords shift work roll roll thrust bearing work Prior art date Legal status (The legal status is an …

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

JPB2 JPA JPA JPB2 JP B2 JP B2 JP B2 JP A JP A JP A JP A JP A JP A JP B2 JP B2 JP B2 Authority JP Japan Prior art keywords shift work roll roll thrust bearing work Prior art date Legal status (The legal status is an …

Application Of An Agc In Hot Strip Rolling Mills

In the metallurgical industry, hydraulic automatic gauge control (HAGC) is a core mechanism for thickness control of plates used in the rolling process. The stability of the HAGC system's kernel position closed-loop is key to ensuring a process with high precision, speed and reliability. However, the closed-loop position control …

(PDF) Camber and wedge compensation in hot strip rolling

Blaw-Knox Foundry & Mill Machinery, Inc. Closed loop integrated gauge and crown control for rolling mills USA (en) * : : The Goodyear Tire & Rubber Company: Equipment for producing continuous tapes of rubbery vulcanizable material, for the manufacture of hose articles USA (en) *

Cold Rolling Mills - Achenbach - Business Groups | Hi-Tech ...

Feb 01, 2018· In conventional rolling mills, the length of the contact line between the WR (work rolls) and the BR (backup rolls) (line PS in Fig. 2) in 4-high mill, or between the WR (work rolls) and the IMR (intermediate rolls) (line EH in Fig. 2) in 6-high mill, is longer than the width of strip rolled (line QR in Fig. 2a or line FG in Fig. 2b). The bending action on the WR exerted by the contact ...

Dynamic characteristics of cold rolling mill and strip ...

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 …

Cold Rolling Mills - Achenbach - Business Groups | Hi-Tech ...

The application of such rolls gives better mill crown control ability, a high performance of work roll bending force and the improved strip edge drop, crown and flatness quality. 134 Optimum Design of Rolling Schedule for Tandem Cold Mill …

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

Sep 01, 1998· The adjustment of the C-code. the downloading to the target hardware as well as the data monitoring and acquisition are done by tools of dSPACE (Hanselmann 1991. Vater 1996). A special problem of the gauge control in rolling mills is that a speed dependent transport delay between the mill stand and the gauge …

Fundamentals of Roll Cooling and Control of Flatness at ...

Jul 01, 1987· A design of automation systems for the competi tive summary of the background to the control ofproduction of metal strip products. thickness in rolling mills is described in an The thickness control problem is further earlier paper by Edwards (1987). exacerbated by the fact that tolerances are For a single stand mill, control is commonly ...

Control of Thickness Profile Whilst Maintaining Flatness ...

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Roll Eccentricity Control for Strip Rolling Mills ...

ZR 21-AN mill section with a very small diameter work roll (65 mm). The net result was that the mill was able to take reductions of over 20% per pass on austenitic stainless steel and to keep the strip shape sufficiently flat to obtain good rolling. There are three other ways to add crown control …

Advanced Metallic Coating Lines by Primetals Technologies

3. Automatic Gauge Control (AGC) is a closed loop control function designed to regulate thickness at the exit of the rolling mill stand to increase the thickness accuracy. 4. Crown and Flatness Control This function is designed to control the crown …

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

In order to further improve the control accuracy of looper angle, strip tension and gauge in hot strip finishing mill, an innovative looper-gauge integrated control scheme is developed in this paper.

Optimization-based automatic flatness control in cold ...

May 01, 1984· Closed loop integrated gauge and crown control for rolling mills: : Eibe: 72/21: : Variable crown roll: : Eibe: 29/113: : Closed loop integrated gauge and crown control for rolling mills: : Eibe: 72/8: : STRIP FLATNESS SENSOR: : Sivilotti et al. 738/620.7: