shape control in cold rolled mill

shape control in cold rolled mill

A BASIC UNDERSTANDING OF THE MECHANICS OF …

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 ...

JSW Cold Rolled Brochure

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 …

Research and Development Trend of Shape Control for Cold ...

Dec 01, 1997· The shape control problem for a Sendzimir 20-roll cold rolling steel mill is characterised by operation over a wide range of conditions arising from roll changes, changes in rolling schedules and changes in material gauge, width and hardness.

Research and Development Trend of Shape Control for …

With new automatic gauge control (AGC) technology, the mills are doing much better, but perfection remains an elusive goal. At the Cold Mill. At the cold mill, every time we change the thickness profile, we also change the flatness. The cold mill roll gap should start out being set to the same profile as the crown of the incoming hot mill product.

Robust shape control in a sendzimir cold-rolling steel mill

Pickling Line coupled with Tandem Cold Mill. 216. Hot Dip Galvanizing Lines. 218. Continuous Annealing Lines ... Q-SHAPE CONTROL . Crown and flatness control systems. Q-COOLMILL ... Quick work and back-up roll changhing for rolling mills. Q-MPE. Mechanical properties estimator for hot rolled flat products. Q-HEAT. Induction heating system for ...

An investigation into the design and performance of an ...

Quantitative Evaluation Method of Shape Indicator for Cold-rolled Strip: Li-po YANG 1,2,Bing-qiang YU 1,2,Hua-xin YU 1,Chang-zheng DU 3: 1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University,Qinhuangdao 066004, Hebei, China

Controlling flat-rolled shape - The Fabricator

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.

Research and Development Trend of Shape Control for …

Research and Development Trend of Shape Control for Cold Rolling Strip 1249 123. strip shape exists in the ultra-wide strip rolling process, and ... cold rolling mill was established by Bai, et al. [35]to control strip edge drop and keep the rolling process stable.

Control Strategies of Asymmetric Strip Shape in Six-High ...

motors. These are known as mill stands. The layout of a rolling mill varies, from a simple single stand mill to several stands positioned either side by side or in a line. A mechanism, commonly called a roller table, directs the work piece to the rolls, and another roller table for …

Rolling Mill Shape Control - Control System Design

AND SHAPE OF COLD ROLLED STRIP. ABSTRACT Various experimental methods have been used to show the effect of different Sendzimir mill rolling parameters on stainless steel strip shape. Experiments using sister coils, noting the effects of change over a number of coils, and using the "Taguchi" statistical

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

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 ...

Everything you need to know about flatteners and levelers ...

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.

An investigation into the design and performance of an ...

Abstract. 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.

HOT ROLLING PRACTICE – An Attempted Recollection

AND SHAPE OF COLD ROLLED STRIP. ABSTRACT Various experimental methods have been used to show the effect of different Sendzimir mill rolling parameters on stainless steel strip shape. Experiments using sister coils, noting the effects of change over a number of coils, and using the "Taguchi" statistical

Shape control of alloy steel rolled by sendzimir mill ...

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 …

Research and Development Trend of Shape Control for Cold ...

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. The precision of shape detecting was 0.2 I, the shape deviation was controlled within 6 I after the close loop ...

Aluthai Metals : Cold Rolled

Dec 01, 1997· The shape control problem for a Sendzimir 20-roll cold rolling steel mill is characterised by operation over a wide range of conditions arising from roll changes, changes in rolling schedules and changes in material gauge, width and hardness.

KRA - Thickness variation control system of ...

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 profile.

Malaysia Cold Rolled Supplier or Manufacturer

Sep 26, 2020· Effect on Steel in Cold Rolling Mill: A Review VSRD International Journal of Mechanical, Civil, Automobile and Production Engineering, Vol. 3 No.3 e …

Shape Detecting and Shape Control of Cold Rolling Strip ...

Research and Development Trend of Shape Control for Cold Rolling Strip 1249 123. strip shape exists in the ultra-wide strip rolling process, and ... cold rolling mill was established by Bai, et al. [35]to control strip edge drop and keep the rolling process stable.

Effects of rolling parameters on the shape of cold rolled ...

Research and Development Trend of Shape Control for Cold Rolling Strip 1249 123. strip shape exists in the ultra-wide strip rolling process, and ... cold rolling mill was established by Bai, et al. [35]to control strip edge drop and keep the rolling process stable.

Quantitative Evaluation Method of Shape Indicator for Cold ...

Pickled coils are rolled in twin stand cold rolling mill where they are processed into a specified thickness. General-ly, the rolling reduction ratio is 50% to 90%. The critical point at this stage of the process is to maintain uniform and precise flatness throughout the entire length of the coil. Unique Features • Auto shape control using ...

shape control in cold rolled mill - garden-state.fr

The rolling mill can also do some flatness correction. The problem is that when the cold mill reduces thickness in one area, it also elongates that area in the rolling direction. Trying to control length differential (shape) and thickness differential (profile) at the same time is asking a lot. It is optimal to let the rolling mill do what it ...

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 work 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.

Robust shape control in a sendzimir cold-rolling steel mill

Rolling Mill Shape Control System Description. Cold rolling mills are an abundant source of control problems. Typically, the stand consists of a small diameter work 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.