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Optimization and Application of FinishMills Temperature Control in Hot Strip Mill. Article Preview. Abstract: in this paper, the author used method of Twodimensional finite difference to establish a model of temperature in hot rolled steels in finishing stands, and used explicit difference method to solve the difference model.
Two CCD cameras are installed between rolling mill stands. By monitoring a strip steel sheet with stereoscopic vision obtained with In between finishing hot strip rolling mill stands, Strip temperature 7001 000 #176;C 7001 000 #176;C
Hot strip mills The objective in a hot strip mill (HSM) is to roll thick slabs into thin strips. Slabs are ingots of alloy metal that are produced in a continuous casting plant. The slabs rolled in Avesta have been manufactured in Tornio (Finland), Sheeld (Great Britain) and Avesta. They have a length of up to 11 meter, a thickness
The monitoring of temperature with contactfree yet precise measurement of the object is gaining tremendous importance in the steel and iron industry. The temperature of raw steel, slab, and wire is of immense importance for the quality of the product in the various processing stages, as well as for the safety in the workplace.
#0183;#32;ThyssenKrupp Steel Europe spent a quarter of a million euros on renovating its hotstrip rolling mill in Duisburg. The animation shows how it all works.
#0183;#32;The hotrolled strip laminar cooling (HSLC) process is important to the production quality in hotrolled strip product line. How to monitor the strip''s transient temperature and accurately control the coiling temperature (CT) are the problems in HSLC since the strip temperature can hardly be measured inside the cooling section.
Measures strip and sheet temperature to efficiently set up the rolling mill to match the steels temperature. These sensors also detect the presence of hot metal to accurately time the roll stand operation for maximum efficiency. LumaSense IS 320 Pyrometer, 150C TO 1200C and LumaSense IGA 320/23, 200C TO 1800C were utilized.
#0183;#32;There are many critical points in the steelmaking process, where equipment failure means costly downtime. One of those points is the hot strip mill. Within t...
Data collection challenges in a hot strip mill. Unfortunately, the extreme heat and copious water in a hot rolling mill wreak havoc on condition monitoring sensors. As a result, you may find yourself forced to compromise on the availability of data, only able to collect information on your assets condition during scheduled maintenance stops.
The object of the thesis work was to test assessment and monitoring tools for the control of a hot strip rolling mill. Two control system were also evaluated, work roll bending control and gap control. The effectiveness of a filter, that is used within the control to remove the
Model for prediction of strip temperature in hot strip steel mill Article (PDF Available) in Applied Thermal Engineering 27(14): #183; October 2007 with 747 Reads How we measure ''reads''
2. The Evolution of Microstructure in the Hot Rolling Process The layout of the hot strip mill of voestalpine Stl is shown in Fig. 1. Slabs are heated to rolling temperature in the reheating furnace, subsequently descaled and rolled in the roughing stand to the transfer bar thickness and after a second descaling step
The finished product can be either a strip, plate, rod, bar, wire, or shape (rails and Hbeams). After the steel is formed to its desired shape, it is cooled so that the desired mechanical properties of the steel product are achieved. Temperature monitoring and control are critical factors in Hot Rolling Mills to assure desired product properties, ensure quality product, improve line speed and process control.
Then taking values easily measured, such as strip finishing temperatures, strip velocity, acceleration rate, value actual on/off status, etc. as auxiliary variables, online monitor function of cooling temperature on runout table of hot strip mills is developed using softsensing technique.
Hot Rolling Mills In metalworking, rolling is a metal forming process in which metal stock is preheated up to 1300#176;C (2400#176;F) and passed through rollers to reduce thickness. Hot rolling processes include preheating furnaces, scale breakers, slab scale, rough stand, finishing stand and cooling lines.
the hot strip mill for SAIL RSP in Rourkela (India) are two examples of full turnkey projects. In these projects the scope of Primetals Technologies includes civil works, bays, steel structures and cranes, water treatment plant, roll shop, slab and coil yards. The hot strip mill for ArcelorMittal Poland was installed within 24 months from contract
Common faults in hot strip mills manifest themselves in different ways, which means that different sensors will pick up on a developing issue at different points in timeor sometimes simply too late. This means its important to select the right type of condition monitoring system for the issues you want to
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