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May 2, 2004 ... The HSMM uses a series of physical models to calculate both ... Evaluation of relationships among process variables such as speed, temperature, retained strain .... each grade of steel being simulated through the rolling mill.

Get Price : Chat OnlineBlueScope Steel Limited. Research Online ... cold, tandem, schedules, mills, rolling, toward, design, optimum, heuristic. Disciplines .... roll speed ωi 1 i N at each stand is calculated. .... Ford±Hill force calculation formula (Bland and Ford,. 1948...

Get Price : Chat Online(1) a hot rerolling mill shall declare the values of 'd', 'n', 'i' and 'speed of rolling', ... capacity, shall be calculated pro rata on the basis of the annual capacity of ... In case, the annual capacity determined by the formula in subrule (3) of rule 3 in...

Get Price : Chat OnlineSep 9, 2011 ... model to calculate the real contact area accounting for bulk plastic ... Edge contact of work rolls and Slit beam deflection mode for a 4high rolling mill ..... For carbon steel rolling, the rolling force is calculated by using .... strip width of operating parameters, the rolling force, reduction and rolling speed etc.

Get Price : Chat OnlineSep 24, 2009 ... ROLLING MILL. ▻ ROLLING ... Heated up to 1200 – 1250 C for steel, 500 – 550 C for aluminum .... Roll separating force is used in calculating other ... The friction factor could be determined in terms of load and speed;.

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Get Price : Chat Online1. Introduction. IHI has constructed many aluminum rolling mills ... tension settings, e speed settings, r default settings of a flatness ... load, calculating the strip crown (index of thickness ... Steel and aluminum rolling companies in Japan attach.

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Get Price : Chat OnlineMar 28, 2014 ... At the same time, the increased running speed brings out possible vibration ... Arnold and Whitton in 1975 proposed a formula for rollseparating force based on ... the roll separating forces and torques via low carbon steel rolling as a .... to improve the accuracy of rollingforce prediction in hot rolling mill.

Get Price : Chat Onlinesteel rolling, it is important to measure the coefficient of friction and examine the effect of the tribological ... laboratory instead of the small scale hot rolling mill, the two disks ..... equation is written in terms of coefficients of friction as follows:.

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Get Price : Chat Onlineparameters have been taken into account when calculating the vibration in this thesis: (i) asymmetry in horizontal mill (different roll speed). (ii) variation of ... 51993, "Mechanical properties of Hot Steel", 13 th Australasian Conference on the.

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Get Price : Chat OnlineJan 1, 2003 ... Jing, Limei (2001) Rolling mill roll design, Durham theses, Durham University. .... A Example for Calculating Rolling Separation Force. 37 .... deformation, temperature and speed, lubrication, and the condition of the rolls. ...... (1) In hot rolling of steel Ekelund's empirical formulae are used for determining.

Get Price : Chat Online[7] analyzed the strip profile under certain rolling conditions for a 4high mill ... proving the precision and convergence speed compared to the existing numerical model. ... IMR and BUR are obtained by calculating the roll deflections due to bending ..... Analysis for steel strip deformation in cold rolling process,. The Iron and...

Get Price : Chat OnlineApr 14, 1992 ... Tandem rolling mill tension control with speed ratio error discrimination .... in Cold Rolling" by D. J. Fapiano and D. E. Steeper, Iron and Steel Engineer, ..... It is possible to further refine this strategy by calculating the multiple of...

Get Price : Chat OnlineFeb 25, 2016 ... Steel rolling consists of passing the material, usually termed as rolling .... Accuracy in calculating these parameters are critical when satisfying such .... In a continuous mill, speed matching the stand to achieve a constant mass...

Get Price : Chat OnlineThe speed optimization study for the tandem cold rolling mill unit has been well .... to different length, thickness, and steel grade, for example, α = , β = , and γ .... In equation (2), the first single objective function is the variance of setup...

Get Price : Chat OnlineTorque calculations based on pressure exerted by the ... carried out at temperature above recrystallisation using a rolling mill [6]. ... obtained experimentally using HC SS316 steel slab at low reduction and low strain ... is the coefficient of rolling speed ..... carried out by calculating the ZenerHollomon parameter (Z), which...

Get Price : Chat Onlinesteel Forming of steel: Forming processes convert solidified steel into ... in width, so that the thickness alone can be used to calculate reduction. ... The basic principles of a rollingmill design are shown in B in the figure. .... tension, width, speed, and shape of the strip, as well as roll pressure, torque, and electrical load.

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Get Price : Chat OnlineLong product rolling automation is a challenge due to its high speeds and different parametrization to produce a wide range of steel ... Cascade control uses the reduction concept (RFactor) to calculate the mill cascade speed reference.

Get Price : Chat OnlineMay 18, 2015 ... Basics of Rolling A rolling mill consist of several, at least two rolls cylindrical ... Spread When the steel is compressed in the rolls it will obviously move in ... Important formula to calculate nominal Weight of bar Diameter x...

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Get Price : Chat OnlineOfficial FullText Paper (PDF): Speed Control of Steel Rolling Mill using Neural Network. ... as a replacement a simple difference equation [7]. Widrow. used an...

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Get Price : Chat OnlineSicartsa. Steel Dynamics. Stelco. UPI (USS/POSCO). US Steel. Weirton Steel ... machinery and the variable speed drive systems used in automation. .... setup models, which calculate a set of references for the control functions. ... Controls for the Steckel coiling furnaces and rolling mill are coordinated and optimized for all...

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