shape control in cold rolled mill

Cold Rolled Steel from Big River Steel | Big River Steel

Reducing our hot rolled coils through our continuous pickle line and in-line tandem cold mill (PLTCM) produces cold rolled steels ranging in thickness from .012" – .100" and 36" – 72" in width. Our investment in technology allows us to meet the tight tolerances and surface finishes customers demand in fully processed cold rolled steels.

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

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 Networkof have been presented. In Section 5, thickness control with roll ec-centricity compensation has been proposed. In Section 6,

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Application of Data Mining in Strip Shape Control of Cold ...

Abstract: At present,the application of "Big Data" in cold rolled strip shape data mostly focuses on data storage,reading and so on.Most of them are only used to establish a data platform which can be read quickly.How to integrate data mining technology with strip shape data processing is still to be developed.This subject takes 1740 production line of a domestic cold rolling mill as …

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Rolling Mills | Industrial Efficiency Technology & Measures

In rolling mills, intermediate steel products are given their final shape and dimension in a series of shaping and finishing operations. Most of the slabs are heated in reheating furnaces and rolled into final shape in hot– or cold–rolling or finishing mills. While some products (e.g. reinforcement bars, steel plates) only require hot-rolling, some others may require both hot– and cold ...

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Analysis of Cold-Rolled Strip Profile in UCM Mill by ...

Edge Drop Constituent Analysis of Cold Rolled Strip. Authors: Guang Hui Yang, Jie Zhang, Jian Guo Cao. Abstract: Aiming at the strip edge drop control, the three dimensional finite element roll system models were built. From the point of the burdened load and deformation of the roll system, the reason which caused the strip edge drop and its ...

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Research on the Strip Running Deviation and Automatic ...

: In allusion to the strip deviation problem of strip cold rolling mill in the rolling production process,due to the strip asymmetric wave shape,cross wedge,equipment installation deviation and unreasonable process,a set of automatic control model of cold rolled strip running deviation and shape is put forward for the first time,combined with the characteristics of the equipment …

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Improving Thin Strip Profile Using Work Roll Cross and ...

Currently, work roll shifting mill is the most effective mill for strip shape control [12, 13] because it improves the strip crown accuracy and edge phenomenon, as well as permitting schedule free rolling [14, 15] by changing the gap equivalent profile in …

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

nition and control for cold-rolled strip. Journal of Iron and Steel. Research, 2013, 25(12): 2–7. (in Chinese) ... 6-high cold tandem mill based on shape control ability. Journal. of Central ...

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Cold Rolled Steel Sheet & Coil Supplier Houston | Curtis ...

They offer better control of thickness, shape, width, surface finish, and other special quality features that compliment the emerging need for highly engineered end use applications. Typical Applications for Cold Rolled Steel Sheet & Coil. Cold rolled sheet steel products are used in a wide variety of end applications such as: Appliances ...

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China 6-High Reversible Cold Rolling Mill - China Cold ...

China 6-High Reversible Cold Rolling Mill, Find details about China Cold Rolling Mill, Rolling Mill from 6-High Reversible Cold Rolling Mill - Hebei Moran …

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Development of fuzzy control algorithm for shape control ...

Result of shape control simulation for 'edge wave'. 5. CONCLUSIONS From the present investigation, the following conclusions are obtained. (1) The cold rolled strip shape can be approximated by a fourth order power series and then the approximated strip shape can be divided into symmetric and asymmetric shape parts.

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

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.

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

12%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 …

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Cold Rolling - an overview | ScienceDirect Topics

Cold rolling reduction is an important factor that affects drawability of IF steel. It has been observed that increasing cold rolling reduction increases the r m value, at least up to 90% [34].This effect has been shown in Fig. 5.14.Perhaps the most important parameters in the production of a strong {111} recrystallization texture are the annealing temperature and the …

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Roll Contour Optimization for Cold Temper Mill - MBA

Roll Contour Optimization for Cold Temper Mill Jiang Zhenglian (Cold Rolling Plant of Baosteel Branch, Shanghai 200941, China) Abstract: A study on the performance of strip shape control has been carried out for a 2000 mm single stand cold temper mill. The theoretical model for roll contour optimization was set up, with roll elastic deformation ...

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Shape and Flatness in the Cold Rolling Process | Lechler US

Shape and Flatness in the Cold Rolling Process When it comes to producing steel in a cold rolling mill, optimizing shape and flatness is critical in order to create the best surface quality. To achieve this you need an effective roll cooling process in place to reduce defects commonly known as quarter buckle, wavy edge, and full shape or center ...

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US5054302A - Hardness compensated thickness control method ...

A wet skin-pass rolling method for rolling a steel sheet by a mill while adjusting the hardness of said steel sheet through control of the rolling reduction. The method comprises determining an allowable range of reduction ratio from a predetermined desired range of hardness of the product, determining a command delivery-side sheet thickness to be obtained at the delivery side of the …

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

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Hot Rolled Steel - McDonald Steel

The hot rolling process also affects the overall shape of the finished metal piece. Hot rolled forms can be much larger than cold rolled forms. However, since hot rolled steel is heated and cooled, it is susceptible to shrinkage, giving less control over the shape and size of …

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

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

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Rolling of Metals

rolled thread. (b) Grain flow in machined and rolled threads. Unlike machining, which cuts through the grains of the metal, the rolling of threads causes improved strength, because of cold working and favorable grain flow. Figure 13.15 Thread-rolling processes: (a) and (c) reciprocating flat dies; (b) two-roller dies.

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Industries Metal Sheet Products & Services California, USA

Cold Rolled. UPI Cold Rolled Annealed has exceptionally tight gauge and shape performance, superior mechanical properties, and top-of-the-line surface quality. ... as well as world class gauge control, shape and surface, make the tin mill products of UPI second to none. Read More. E-Business. Please visit our E-Business portal to find more ...

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Cold Rolling Mills / Skin Pass Mills – ESMECH Equipment ...

Compact Cold Mill (Twin Stand) Twin Stand Mills are termed as CCM, or Compact Cold Mills. With over 5 CCMs supplied and 2 single stand mills upgraded to CCMs, Esmech has a considerable experience in these Mills. CCMs typically have around 160-170 % of a Single Stand Mill capacity, and are quite cost effective due to the fact that the operating ...

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Cold Rolled Sheets | UTTAM VALUE STEEL

Zonal roll cooling for thermal crown control. Size Range 0.12mm x 900 mm to 1.2mm x 1100mm. MILL SPEED : 750 MPM (Max) COLD ROLLING MILL #2 (United Inc, Lloyds) Stress meter for better shape control. Size Range 0.25mm x 900mm to. 1.52mm x 1250mm. MILL SPEED : 1200 MPM (Max) Skin Pass Capability.

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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.

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

Fig 2, Heat Migration in Cold Mill Work rolls (Hotter regions shown in red) This localized heat input / output process results in a non-uniform distribution of heat, circumferentially around the roll and transversely across the roll body. Additionally the roll is subjected to Thermal and Mechanical Fatigue during rolling:

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Shape Control Technologies in Hot Strip Mill – IspatGuru

Strip shape is an indispensable factor in determining the market competitiveness of the rolled strip. Since the strip shape is a key indicator of quality, the shape control technology is the core technology of hot strip production. There are several factors which influences the shape of rolled strip in the hot strip mill (HSM).

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Robust shape control in a sendzimir cold-rolling steel mill

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. Previous approaches to the problem suggest storing a large number of precompensator matrices to cater for the full range of operating …

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What is "Cold Rolling" Stainless Steel and Other Metals ...

In simple terms, cold rolling is the process of strengthening steel by changing its shape without using heat. Cold rolling, unlike hot rolling such as with hot rolled steel, can only occur when a metal is below its re-crystallization temperature. Where hot rolling is performed using high temperatures, cold rolling is performed at room temperature.

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Rolling Mill Production Line: What Is Cold Rolling Mill?

The machine can process hot-rolled wire rods and circles with a diameter of 6.5 mm to 12 mm into cold-rolled ribbed bars with a finished specification diameter of 5 mm to 12 mm. The cold-rolled ribbed steel bar rolled by cold rolling mill is an updated product of cold drawn low-carbon steel wire in prestressed concrete members.

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History of ANDRITZ Sundwig

Cold rolling mills. for reducing, skin passing and finish-rolling in 20-high, S6-high (18-high), 12-high, 6-high, 4-high, and 2-high designs, and in combinations of 2-high/4-high or 4-high/S6-high design, available as one-way, reversing or tandem mill, inline and offline. Shape control systems. for cold rolling mills and strip processing lines.

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JSW Cold Rolling Mills | Widest Cold Rolling Mill for ...

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 tailing-out operations.

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ROLLED STRIP SHAPE CONTROL USING WORK ROLL …

We claim 1. A method of controlling the shape of a rolled strip delivered from a rolling mill which contains a work roll and means to vary roll force created by said work roll, comprising: rolling a strip to final gauge while subjecting said strip to from about 0.25 percent to about 6 percent elongation in length while using a work roll size and a roll force within a range that, for said roll ...

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