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In the application of roll lubri--ing hot rolling mills, several con-cerns arise, i.e., bite and roll slippage and effectiveness. This paper studies the mechanism of roll lubrication of the reversing hot rolling mill theoretically and investigates the effect of the roll lubrication on mill .
S.-B. Tan, M.-W. Bao, and J.-C. Liu, "Research on application of smith predictor to monitor AGC in hot strip rolling mills," in Proceedings of the Chinese Control and Decision Conference (CCDC '09), pp. 4172–4175, Guilin, China, June 2009. View at Publisher · View at Google Scholar · View at Scopus
AGC 4-hi rolling mill control accuracy, especially suitable for high precision cold-rolled strip production. Production line process Front coiler→(Unloading car)→Machine front device→ 4-hi main rolling mil→ Machine after the device→After the coiler (Unloading car)→according demands to arrange the uncoiler, Starting straightening ...
P. Kucsera et al. Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip. This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters.
To enhance strip thickness accuracy and to improve the mass flow of the head end part of a strip in the 7-stand finishing mill using a hot strip measurement system, this study is being performed. In this paper, the speed measurement system layout and the applications of measured strip speed incluing a neural network for predicting a forward ...
Cold-Rolling Mill Machine Sale. Main Applications: Steel Coil Aluminum Coil Copper Coil Your Application We also provide high precision cold rolling mill and hot rolling mill You Need Better Cold-Rolling Mill at Good Price. Due to government environmental protection and Deproductivity Action, a lot of good machines are stopped, we can find you second hand rolling mills with good condition and ...
The application at each roll mill required a set of two LSV's, one located on either side of the mill. The combination measures strip entry and exit speed for determining elongation or for mass flow calculations. One of the 4-High rolling mills is a reversing mill so the strip could be moving in either direction.
nology for hot strip rolling mills based on distributed agents is presented aimed to the diagnosis of hot strip rolling mills with controllers. In the operation of hot strip mills, human operators try to maintain rolling conditions in an appropriate situation. To help the operators, it is needed to build an in-
Infrared sensors measure strip and sheet temperature so that rolling mill stands can be efficiently set to match the steel's temperature. Sensors can be used to detect the presence of hot metal and accurately time the roll stand operation. Pyrometers can be used to measure the roll temperature as water cools the roll during the quenching process.
Abstract: Recently, the accuracy of hot strip gauge is strictly demanded, and the strip thickness becomes the most important quality in hot strip rolling. In order to improve the quality of the hot strip gage and to reduce the strip thickness deviation, the automatic gauge control (AGC) system now is widely used in modern hot strip mills.
been developed for hot or cold mill processes. The Brit-ish Iron and SteelResearch Association (B1SRA) AGC method based on the gaug meter principle and the feede forward AGC method using the delivery time of the strip have been widely utilized in steel rolling mills [3]. Strip products thickness precision is an important quality parameter.
In the research area Hot Strip Rolling, advanced nonlinear process control problems associated with the operation of a tandem hot-strip finishing mill are solved. A tandem hot-strip mill like the one shown in Fig. 2 is a nonlinear MIMO dynamical system.
SMS DEMAG Hot Strip Mills 10 The drum-type shear installed between the roughing and finishing mills of a hot strip mill crops the trans-fer bar at its head and tail. In special applications, the drum-type shear also serves to divide transfer bars and finished plates. Based on the experience gained from more than 60 drum-type shears built so far,
Oct 30, 2017· Metal strip thickness gauge with accuracy 0,001 mm for cold rolling mills (steel, lead, brass, aluminium, Titanium Zinc, Nickel, bimetal,...) with AGC outputs, thickness range 0 - 3,5 mm ...
Download Citation on ResearchGate | Research on application of Smith predictor to monitor AGC in hot strip rolling mills | Because of the long distance between the last finishing mill and the X ...
Hot Strip Mills. Global Gauge has installed hot strip mill thickness gauges all across the world. By investing in a Global Gauge thickness gauge upstream in the rolling process, our customers are able to maximize quality and improve process certainty.
Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills. It would result in a slower adjusting speed of strip rolling gap to combine ...
selection of the related rolling mill equipment. The portfolio of Primetals Technologies hot strip mill technology covers all these demands. The hot strip mill for ArcelorMittal in Krakow (Poland) and the hot strip mill for SAIL RSP in Rourkela (India) are two examples .
The number of stands ranges from 2 to 18. Tandem mills can be either of hot or cold rolling mill types. Defects. In hot rolling, if the temperature of the workpiece is not uniform the flow of the material will occur more in the warmer parts and less in the cooler. If the temperature difference is great enough cracking and tearing can occur.
Typical processing strip thickness: 0,15 to 8 mm Typical coil weight: 5 to 15 Ton; Skin Pass Mills Four High unidirectional Skin Pass Mills. INCO manufacture either skin pass mills for Hot Rolled black material or for Cold Rolled or Galvanized material. Mills can be complete or be installed in continuous treatment line. Strip width up to 1800 mm.
Monitoring the Profile of Hot-rolled Strip Measuring the Flatness of Hot-rolled Strip Width and Length Gaging of Rolled Products The Measurement of Rolling Force Automatic Control of Blooming and Slabbing Mills The Control of Billet, Rod and Bar Mills using Microcomputers Automatic Gage Control Computer Control of Plate Mills Hot-Strip-Mill ...
TMEIC Supplies Superior Control Systems for Hot Rolling Mills Hot rolling mills roll heated steel, stainless, and aluminum slabs to make hot strip with a thickness of a few millimeters to over ten millimeters. Hot coils are shipped as they are, or moved to another operation and processed to cold rolled sheet, coated steel sheet, or steel pipe.
Dec 22, 2013· Main Features of a modern Hot Strip Mill. The objective of a hot strip mill (HSM) is to reheat and roll thick slabs into thin strip with a wide range of thickness. Because of its huge size and large investment a hot strip mill need to have a life time of several decades.
HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip is a .
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