• 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.

  • Rolling Mill Shape Control Control System Design

    Rolling Mill Shape Control System Description. Cold rolling mills are an abundant source of control problems. Typically, the stand consists of a small diameter roll and a larger backup roll on each side of the steel strip. Significant amounts of energy are required to achieve the desired thickness reduction.

  • Control Strategies of Asymmetric Strip Shape in Six-High

    Abstract. It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production. A roll system and strip coupled model of six-high cold rolling mill was established with finite element method to estimate the effect of intermediate roll shifting, tilting, symmetric and asymmetric bending technologies on strip

  • Cited by: 12
  • Shape Detecting and Shape Control of Cold Rolling Strip

    Based on the shape detecting principle and the DSP (Digital Signal Processing) technology, a high-precision shape detecting system of cold rolling strip is developed to meet industrial application. It was successfully used in Angang 1250 mm HC 6-high reversible cold rolling mill.

  • Cited by: 3
  • Shape control of alloy steel rolled by sendzimir mill

    Sep 01, 1996· In order to improve quarter waves occurred in the wide and thin gauged alloy steel rolled by 20-high sendzimir mill, a computer simulation based on the divided element method and an actual cold rolling experiment were carried out. Quarter waves were simulated by elastic deformation analysis of rolls considering bending deformation of back up rolls and the effect of control actuators on

  • Cited by: 3
  • Shape Control In Cold Rolled Mill Tandem Cold Mill Metal

    shape control in cold rolled mill tommoerman Control Strategies of Asymmetric Strip Shape in Six,It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production A roll system and strip coupled model of six-high cold rolling mill was established with finite element method to estimate the effect of intermediate roll shifting, tilting, symmetric and

  • Research and Development Trend of Shape Control for Cold

    Jul 19, 2017· Shape is an important quality index of cold rolling strip. Up to now, many problems in the shape control domain have not been solved satisfactorily, and a review on the research progress in the shape control domain can help to seek new breakthrough directions. In the past 10 years, researches and applications of shape control models, shape control means, shape detection technology, and shape

  • Flatness Control System of Cold Rolling Process with

    Flatness control in rolling processes is widely used for steel and nonferrous metals, such as aluminum and copper. We developed a shape roll by applying the principle of pneumatic bearing and supplied the first flatness control system (hereinafter called IHI Sheetflat) to an aluminum cold rolling mill in 1985.(1)

  • Mechanics of Cold Rolling of Thin Strip IntechOpen

    mechanics. With the need for higher quality and productivity in cold strip mill, mathematical models of cold rolling of a strip with a desired shape and dimension, both for mill set-up and for on-line control, have become a key issue in the steel rolling process. One major part of these models concerns the strip and roll deformation

  • JSW Cold Rolling Mills Widest Cold Rolling Mill for

    Every aspect of JSW PLTCM is designed to add precision and quality control to the cold rolled process. In this, pickling line is linked with cold rolling mill, which provides better shape control, delivers significant improvements with regard to mill productivity, yield, and production as a result of the elimination of strip threading and

  • An investigation into the design and performance of an

    Shape (or flatness) control for rolled steel strip is becoming increasingly important as customer requirements become more stringent. Automatic shape control is now more or less mandatory on all new four-high cold mills, but no comprehensive scheme yet exists on a Sendzimir mill. This is due to the complexity of the control system design on such a mill, where many more degrees of freedom for

  • Cold Rolling of Steels IspatGuru

    Oct 08, 2014· Cold rolling makes the cold rolled sheets a much improved product. Cold rolled steel products offer good control of thickness, shape, width, surface finish, and other special quality features that compliment the need for highly engineered end user applications.

  • Malaysia Cold Rolled Supplier or Manufacturer

    Outstanding shape control (flatness) Cold Rolled Steel is a mill product made with a high degree of gauge accuracy and uniformity of physical characteristics. The smooth deoxidized matte finish gives an excellent base for paint, lacquer and enamel. Box annealing and absence of scale permit stamping and moderate drawing operations.

  • Aluthai Metals : Cold Rolled

    Outstanding shape control (flatness) Cold Rolled Steel is a mill product made with a high degree of gauge accuracy and uniformity of physical characteristics. The smooth deoxidized matte finish gives an excellent base for paint, lacquer and enamel. Box annealing and absence of scale permit stamping and moderate drawing operations.

  • Flatness Control System of Cold Rolling Process with

    Flatness control in rolling processes is widely used for steel and nonferrous metals, such as aluminum and copper. We developed a shape roll by applying the principle of pneumatic bearing and supplied the first flatness control system (hereinafter called IHI Sheetflat) to an aluminum cold rolling mill in 1985.(1)

  • Rolling (metaling) Wikipedia

    Cold-rolled sheets and strips come in various conditions: full-hard, half-hard, quarter-hard, and skin-rolled. Full-hard rolling reduces the thickness by 50%, while the others involve less of a reduction. Cold rolled steel is then annealed to induce ductility in the cold rolled steel which is simply known as a Cold Rolled and Close Annealed.

  • A.-R. He's research s University of Science and

    A.-R. He's 66 research s with 96 citations and 672 reads, including: Shape-control characteristics of six-high mill with roll offset

  • 60 YEARS OF ROLLING MILL TECHNOLOGY By Ford B. Cauffiel

    cast ss into plate, the plate into hot rolled coils and the hot rolled coil into cold rolled coil. Many of these old mills are still running today as a result of upgraded electrical and hydraulic systems, including hydraulic screwdowns, hydraulic roll bend, and tension control.

  • Strip Thickness Control of Cold Rolling Mill with Roll

    Nov 12, 2013· description of the cold rolling process is presented. In Section 3, a mathematical model has been driven for sin-gle-stand cold rolling mill. In Section 4, architecture and learning algorithm Fuzzy Neural Netof have been presented. In Section 5, thickness control with roll ec-centricity compensation has been proposed. In Section 6,