High-tech Zone , Zhengzhou ,China [email protected] Get A Quote
Products
  1. Home
  2. Hot Rolling Mill Roll Eccentricity

Hot Rolling Mill Roll Eccentricity

Hot Rolling Mill Roll Eccentricity

Hot Rolling Mill Roll Eccentricity

Hot Rolling Mill Roll Eccentricity. Abstract This paper is concerned with the active compensation of the roll eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll eccentricity may be caused by different reasons, like e.g. inexact roll grinding or nonuniform thermal expansion of the rolls.

Read More

Method Of Measuring And Compensating Roll Eccentricity Of ...

Method Of Measuring And Compensating Roll Eccentricity Of ...

A rolled plate with uniform thickness and flatness from a rolling mill is a goal constantly pursued by many steel plate manufacturers. Among the various factors which affect the thickness and flatness of the rolling plate, eccentricity of the backup roll is most decisive.

Read More

Us3709009a

Us3709009a

A method for detecting an eccentricity and phase angle (an angle formed between a predetermined point of a roll and a point at which the maximum eccentricity occurs) of a working or backing roll in a rolling mill without use of detectors directly attached to the peripheral surface of the roll is provided. The rolling pressure is sampled, quantized and fed into an arithmetic unit for ...

Read More

Us4910985a

Us4910985a

The invention provides a new apparatus for the detection, measurement and display of roll and roll bearing eccentricity in a rolling mill, and also an apparatus for correction of such eccentricities. The apparatus comprises individual narrow band-pass filter modules, each dedicated to the detection and development of a signal corresponding to one eccentricity, such as fundamental back-up roll ...

Read More

Rolling Mill Roll Eccentricity Control

Rolling Mill Roll Eccentricity Control

Jul 04, 1989· The invention relates to the control of rolling mill backup roll eccentricity by combining the load carrying characteristics of rolling mill tapered roller bearing assemblies during rolling with prescribed levels of axial thrust to effect a controlled deflection of backup roll necks on a 4-high rolling mill or the like due to the selected thrust force applied axially to the ends or necks of ...

Read More

The Complete Technology Book On Hot Rolling Of Steel

The Complete Technology Book On Hot Rolling Of Steel

Hot rolling mill thus helps in reducing the size of a metal thereby molding it into the desired form and shape. Rolling mills perform the function to reform the metal pieces such as billet and ingot whilst maintaining its well equipped micro structure into bar, wire, sheet, strip, and plate. Hot rolled products are frequently categorized

Read More

Controller For Improving The Quality Of The Tandem …

Controller For Improving The Quality Of The Tandem …

hostile hot rolling environment precludes the reliable measurement of significant process variables such as strip speed and intermediate stand exit thickness. ... mill roll eccentricity such as that described in [4] is assumed to be operable so that any eccentricity components

Read More

Application Of An Agc In Hot Strip Rolling Mills

Application Of An Agc In Hot Strip Rolling Mills

Hot Rolling Mill Roll Eccentricity Crushing. Temper Hot Cold Rolling Mill Steel Equipment. Cold rolling bliss can assist customers in selecting the proper mill configuration and sie it specifically for the bliss can provide mills in two or four high roll arrangements include reel to reel installations, inline mills…

Read More

Reducing Thickness Variation Of Hot Rolled Steel Strip By ...

Reducing Thickness Variation Of Hot Rolled Steel Strip By ...

2 Rolling mill stand unit design 1 Rolling force variation consists of changes of a rolling force level, b rolling force fluctuation and c drop of rolling force once in back-up roll revolution Widmaier et al. Reducing thickness variation of hot rolled steel strip 134 Ironmaking and Steelmaking 2009 VOL36 NO 2

Read More

Fault Diagnosis Of Roll Shape Under The Speed …

Fault Diagnosis Of Roll Shape Under The Speed …

find both eccentricity magnitude and eccentricity location in the roll as shown in Fig.10. But, as shown in Fig.12, not only magnitude of eccentricity but also location of eccentricity in the roll is obtained. 4.2 Simulations with Field Data Fig.13 shows a simplified multi-stand hot rolling system. The rolling system consists of seven stands.

Read More

(Pdf) Chatter In Steel Rolling

(Pdf) Chatter In Steel Rolling

lems with the roll eccentricity or various sorts of ... sional vibrations in hot rolling mills and a possible remedy. ... Mathieu's equation to predict the stability criterion of a roll alignment ...

Read More

Upgrading Of Hot Finishing Mill To 4

Upgrading Of Hot Finishing Mill To 4

hot-rolled coils, thereby effecting pass cutting in the cold-rolling process. 3) To realize a high-productivity hot-rolling mill by replac-ing the computer control system with one of the latest design that achieved a significant degree of automa-tion. The expansion of the hot finisher to 4 stands, which was

Read More

Industries Served

Industries Served

Rolling Mills Automatic Gauge Control; Elongation Control; Tension Control; Shape Control; Shape Maintenance Roll Bending; Strip Steering; Hot Mill Profile Control; Hot Mill Finish Temperature Control; Backup Roll Eccentricity Compensation

Read More

Advanced Reversing Cold Mills By Primetals Technologies

Advanced Reversing Cold Mills By Primetals Technologies

Depending on the product mix, a single-stand cold rolling mill can deliver rolling capacities of 100,000 to 400,000 t/a. Rolling schedules can be carried out with an even or odd number of passes to maximize mill availability and performance.

Read More

Loop Monitoring And Assessment Of Hot Strip Mill Control

Loop Monitoring And Assessment Of Hot Strip Mill Control

casted steel slabs and rolled in two stands down to desired thickness. The first stand is a conventional roughing mill. The last stand is a steckel mill. It is a special rolling technique that is only used in a small number of hot strip mills in the world. When this special technique is used, the demand on the control is …

Read More

Us3543549a

Us3543549a

Roll eccentricity correction system and method US4038848A (en) * 1974-05-31: 1977-08-02: Hitachi, Ltd. Method and apparatus for controlling eccentricity of rolls in rolling mill DE2605183A1 (en) * 1975-02-12: 1976-08-26: Hitachi Ltd: Means for controlling the thickness of the rolling in a rolling mill

Read More

Roll Mining Mill Shaft Eccentricity Calculation

Roll Mining Mill Shaft Eccentricity Calculation

Roll Mining Mill Shaft Eccentricity Calculation; Mill (grinding) Wikipedia. ... Hot Rolling Mill Hydraulic Gap Control (HGC) thickness. Roll bending is not directly linked to thickness control, but usually this control is incorporated in the same hardware, together with AGC. Work roll bending forces are applied, using hydraulic cylinders, to ...

Read More

Dave Knapp – Telepro, Inc.

Dave Knapp – Telepro, Inc.

An encoderless roll eccentricity compensation system for rolling mills and sheet casters; Shop floor inventory and production tracking systems for hot rolled plate and coiled products and for sheet finishing operations; A standard hydraulic mill stand control product for rolling mills

Read More

Difference Between Hot And Cold Rolled Steel | Metal ...

Difference Between Hot And Cold Rolled Steel | Metal ...

Sep 11, 2014· Hot rolled steel involves rolling the steel at high temperatures, where cold rolled steel is processed further in cold reduction mills where the material is cooled followed by annealing and/or tempers rolling. Hot Rolled Steel. Hot rolling is a mill process which involves rolling the steel at a high temperature (typically at a temperature over ...

Read More

Reducing Thickness Variation Of Hot Rolled Steel Strip By ...

Reducing Thickness Variation Of Hot Rolled Steel Strip By ...

Jul 18, 2013· (2009). Reducing thickness variation of hot rolled steel strip by non-circular back-up roll geometry. Ironmaking & Steelmaking: Vol. 36, No. 2, pp. 133-140.

Read More

Coupled Pickling Line &Amp; Tandem Cold Mill

Coupled Pickling Line &Amp; Tandem Cold Mill

COUPLED PICKLING LINE & TANDEM COLD MILL High-capacity production of high-quality products For a wide range of products, the required strip thickness, flatness and surface quality can be achieved more economically by linking the pickling and cold-rolling processes.

Read More

The Engineering Design Of Rolling Mill

The Engineering Design Of Rolling Mill

A Cold Rolling Mill rolls, in subsequent short passes(due to the relative thick material), coiled strip from a thickness of up to 8 mm (coming from Hot Rolling Mill) down to 0.2 mm; the mill is designed with high rolling force and power capability and efficient and fast coil handling to minimize the waiting time.

Read More

Fault Diagnosis Of Roll Shape Under The Speed Variation In ...

Fault Diagnosis Of Roll Shape Under The Speed Variation In ...

In this study, a new diagnosis method for roll eccentricity under the roll speed changes was developed. The new method was induced from analyzing the rolling mechanism by using rolling force models, radius-speed relationship, and measured rolling force, etc. Simulation results by using the field data show that the proposed method is very useful.

Read More

Hot Rolling Mill Roll Eccentricity

Hot Rolling Mill Roll Eccentricity

hot rolling mill roll eccentricity pochiraju . Neural network for identifiion of roll eccentricity in rolling mills. Feb 16, 1999 The roll eccentricity in a rolling mill may define the limit of thus is subject of interest for the automation equipment in hot rolling mills as well as. Get price

Read More

Strip Thickness Control Of Cold Rolling Mill With Roll ...

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 ...

Read More

A Robust Data

A Robust Data

This paper deals with the parameter estimation and online monitoring of roll eccentricity in rolling mills. Roll-eccentricity-induced disturbances can result in strip thickness deviation and ...

Read More