-
Email us
-
Online Us
24-Hour Service
-
Find Us
HeNan, China
24-Hour Service
HeNan, China
By joining coils prior to entering the mill, a continuous tandem cold mill results in additional benefits such as Highest production rates Optimized yield Reduced roll consumption Flexible production Tight tolerances for strip thickness, shape, and high surface quality Low costs for operation, maintenance, and minimum down times Fewer operators
The tandem rolling of cold metal strip is a large, highly complex nonlinear multivariable process the control of which poses a significant engineering challenge. Existing controllers have proven to be susceptible to disturbances and uncertainties in process variables and attempts to increase robustness to these phenomena have had their own drawbacks so a new approach is needed.
Aiming to produce just short of half a million tpy of aluminum cold strip? Then tandem cold mills (TCM) from SMS group are the most efficient option for you. Designed in 4-high or 6-high configurations, they feature our well-known CVC plus as well as other cutting-edge rolling technologies. Here you will experience the latest developments in cooling, strip-edge control, and roll bending to ensure excellent strip quality and profitable
The tandem mills consists out of a series of rolling stands that thin the steel strips. One of our tandem mills works exclusively for the automotive industry, the other produces products for the remaining branches. After having passed through the cold rolling mill, the steel strip is hardened. This entails that it is no longer able to be processed further.
Danieli Wean Uniteds cold rolling technology (4-high and 6-high) allows producers to achieve superior strip surface and profile quality, with lower production and maintenance costs, while providing the highest possible levels of production flexibility and plant efficiency. Danieli cold rolling solutions TCM - 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.
Modernization of a Tandem Cold Rolling Mill at Arcelor Eisenhttenstadt Modernization at the state-of-the-art As part of the modernization of a 4-Stand Tan-dem Cold Rolling Mill of Arcelor Eisenhtten-stadt GmbH, ABB replaced the drive and automation equipment as well as the process control computer for production management and presetting.
Xtek is known throughout the North American steel industry as a leading supplier of high quality forged steel work rolls for flat rolling cold tandem and temper mills. Chat Now Send Inquiry 1301 The Rolling of Aluminium the Process and the...
China Tandem Rolling manufacturers - Select 2021 high quality Tandem Rolling products in best price from certified Chinese Rolling Machine, Rolling Equipment suppliers, wholesalers and factory on Made-in
Tandem cold rolling mills are named by their stand arrangement and designed as sheet mills if they reduce hot band to sheet gauge or tin mills if they roll the same incoming material to tinplate stock. A typical five stand tandem cold rolling mill is illustrated in Figure 1. Figure 1 A typical five stand tandem cold rolling mill
The rolling of hot metal strip in a tandem finishing mill is an important industrial manufacturing process that has considerable implications related to the health of the US economy. However, at present the US competitive position in the world market of rolled metal products remains seriously degraded.
Oct 01, 2019 Abstract. Tandem cold rolling mills are comprehensive dynamic systems coupling with structure and rolling technology. A frequent problem is mill chatter, often occurring when rolling hard, thin materials at high speed and affecting the quality of the strip. In this paper, a dynamic increment model for chatter in a Universal Crown Control mill ...
Analysis of Chatter in Tandem Cold Rolling Mills Yukio KIMURA, Yasuhiro SODANI, Nobuo NISHIURA, 1) Naoki IKEUCHI 2) and Yutaka MIHARA 3) Materials Processing Research Center, NKK Corporation, Kokan-cho, Fukuyama, Hiroshima-Pref. 721-8510 Japan.
Jun 01, 2020 Tandem Cold Metal Rolling Mill Control deals primarily with a novel and practical advanced method for control of the tandem cold metal rolling processes based on the state-dependent Riccati ...
May 02, 2012 ArcelorMittal-Cleveland84 Tandem Cold Mill Revamp LC LC LC 5 4 3 2 1 PG PG PG Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.
Mill chatter in tandem cold rolling mill is a major rejection to the quality and production of the strips. In most mill vibration models, either the roll mass is usually limited to vibrate in vertical direction and vertical-horizontal directions, or the multiple rolls system is simplified to a single mass system. However, the torsional chatter is also a typical type of mill chatter, and the ...
Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. The improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand tension. This paper focuses on interstand tension control problem in 5-stand tandem cold rolling mills.
Tandem Cold Metal Rolling Mill Control deals primarily with a novel and practical advanced method for control of the tandem cold metal rolling processes based on the state-dependent Riccati equation technique which is recently emerging as a useful method for control of complex nonlinear systems. Background material is presented to assist the ...
Scheduling for tandem cold mills refers to the determination of inter-stand gauges, tensions and speeds of a specified product. Optimal schedules should result in maximized throughput and minimized operating cost. This paper presents a genetic algorithm based optimization procedure for the
Apr 30, 2021 Italian plantmaker Danieli has announced that a new 5-stand tandem cold rolling mill supplied by the company has been commissioned at Turkish steel producer Tatmetal elik. Installed in Ereli, Turkey, and linked to an existing continuous pickling line, the new tandem mill of Tatmetal elik is now in full operation. The new mill has an ...
the tandem cold mill. Process Description The tandem rolling of cold metal strip is a significant process in the manufacturing and processing of metals. In general, two types of con figurations are realized for the pro-cessing of steel, i.e., the stand-alone mill and the continuous
Innovative technologies. One of the most outstanding products in the ANDRITZ Metals portfolio is its patented S6-high rolling mill. This mill is increasingly used for stainless steel strip rolling, either as in-line tandem mill for cold rolling or in the entry section of hot-strip stainless steel annealing and pickling lines to roll black hot strip with highest pass reductions and simultaneous ...
Chatter phenomenon in the rolling mills is the undesired mechanical vibrations which reduces the productivity and quality of the products. Many studies have led to the point that friction is one of the most effective factors incurring chatter. In this paper, a chatter simulation model for
The pre-set values of rolling force and roller line speed are compared with the actual measured ones in a 1450 mm five-stand tandem cold mill and other researchers method.
Aug 01, 2018 The experimental results obtained from the five stands tandem cold rolling mill. This paper proposed new ANN for prediction of inter-stand tensions. Also, this ANN method shows a fuzzy control algorithm for investigating the effect of front and back tensions on reducing the thickness deviations of
Sep 30, 2019 The complete electrical and automation upgrade is set to improve reliability, strip quality and increase the speed and torque of the tandem cold rolling mill drives, supporting improved strip throughput and yield, enabling the production of thinner, high strength alloys and other new steel products.
cold rolling mill used machine for sale. Qty. 1 Second-hand 3 stands 4-Hi Tandem cold rolling mill line Mfc. Demag Type 4-Hi Built 1968 Material to be rolled low carbon steel Strip width 600 1500 mm Thickness Entry 2.5 mm Exit 0.2 mm Entry Coil ID 510 mm OD 1800 mm Weight 15 MT Exit Coil ID 510 mm OD 1800 mm Weight 15 MT Work roll dia. 380 mm x 1650 mm Roller bearings ...
rolling mill, dedicated roll cooling systems are required to fulfill the required functions. Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills.
tandem cold mill of Kakogawa Works was increased, and this has reduced the problems due to meandering. Introduction Tandem cold rolling is an intermediate process that supplies semi-products to the annealing and galvanizing processes and is important in creating the thickness of
Aug 07, 2001 (3) A tandem cold rolling mill comprising cold rolling stands, the number of which is not less than 4 and a coiler, or a coiler and a bridle roller, or a coiler and a pinch roller arranged on the delivery side of the tandem cold rolling mill, wherein the inequality of J C (0.375h0.275)J M
This covers every step of the iron and steel production chainfrom the raw materials to the finished productand includes the latest rolling solutions for the nonferrous metals sector. Primetals Technologies is a joint venture of Mitsubishi Heavy Industries and partners, with around 7,000 employees worldwide.
Abstract According to the chatter phenomenon of 3 rd stand of a steelworks six-roller tandem cold mill (TCM), vertical vibration of tandem cold mill was simplified to eight degrees of asymmetric freedom mass-spring system. Virtual prototype model on vertical vibration of tandem cold mill was established and natural frequencies and main vibration mode of mill were solved by using automatic ...
The cold rolling tandem mill is typically made up of ve stands, associated in cascade, traversed by the product steel strip which passes through their independent driven work rolls. The objective of such process is to reduce strip thickness and to obtain a desired product having certain thickness, rigidity
Dec 01, 2010 Tandem Cold Metal Rolling Mill Control deals primarily with a novel and practical advanced method for control of the tandem cold metal rolling processes based on the state-dependent Riccati equation technique which is recently emerging as a useful method for control of complex nonlinear systems. Background material is presented to assist the ...
Related News