Rolling – reducing the thickness or changing the cross- section of Often carried out at elevated temperatures first (hot rolling) to increase in width, may actually occur if edger mills are not used Power per roll (English units) = πFLN / 33,000 hp. • Where F is in lbs, L is in ft Hot rolling of ingot or a continuously cast slab.
Get PriceWith a 5-mill production system, JFE produces a wide range of hot strip siz- . Hot rolled steel sheets for electric resistance welded pipe and tube. JFE-HP. 16 size range according to standard, appliion and method of working, contact.
Get PriceIn 2006 the ILVA #1 Hot Strip Mill in Taranto, Italy undertook a project to upgrade Subsequent phases will upgrade the HP of the remaining stands and allow ILVA to replace all the DC . Equation 1: Definition of Torque Amplifiion Factor .
Get PriceAfter many years of service, the gears in a hot-strip rolling mill must be replaced. to 12,000 hp), coupled to a mainreduction gearbox containing single or double It is tempting to calculate deflections for the worst combination of factors, then
Get Priceeach stand in mill yard was measured at different roll tonnage. The pilot hot rolling test shows that variation of exit cross sectional area is almost linearly lated Archard's wear equation as an incremental form and the . (Hp/2) is 18.75 mm.
Get Pricesystem was installed in the seven-stand hot-strip mill of voestalpine´s steel plant in . the heat equation, that couples by the temperature itself to all of the metallurgical .. [1] T. Fastner, H. P. Narzt, J. Vlcek, W. Marschal, H. Preissl, N. Hübner,
Get PriceThis convenient hand-held Street and Strip Performance Calculator is You can enter your car's weight or calculate it from a known ET and HP or MPH and HP. appropriate engine measurements and you can determine the amount to mill a
Get PriceKeywords: Hot Strip Mill, Run Out Table, Adjustable Frequency Drive, Energy Efficiency of squirrel-cage induction machines rated at 4,160 volt, 400 horsepower (HP), with . Energy calculations were based on the following formulas:.
Get PriceAs shown in the figure, the reduction in cross section is calculated by not much change in width, so that the thickness alone can be used to calculate reduction. each is driven by one or two electric motors totaling 7,000 to 12,000 horsepower. All the equipment in a hot-strip mill is arranged in a straight line of about 600
Get Pricerolling. 2.1 Calculation model for hot steel strip rolling. The hot strip mill shown in Fig. 1 was assumed as a Finishing mill motor power. : Nominal 2 400 000 t/y figure shows the rolling loads calculated by the equation for deformation
Get Priceduring hot rolling of rectangular sections (i.e. slab or bar) between plain rolls. The results did not . friction and for steel rolls it is defined by the equation : where T is the . the mill spring to the roll setting, correction being made for expansion and Summers that had two 310 h.p. motors; one was running all the time and
Get PriceSep 30, 2014 Part 1: Fundamentals of Calculating Coupling Sizing Torque Nominal Torque = Horse Power x 63025 / RPM = Appliion Torque (in-lbs) .. grid coupling (2) hot alignment (1) hot check (1) hot strip mill (1) hub key (1) hub
Get PriceStand Cooling at wide hot strip mill to provide a defined temperature drop in Linear 2-node element is used to calculate time evolution of temperature in .. The standard Hollomon-Jaffe parameter Hp (4) is used for calculation of equivalent.
Get Priceequations for the calculation of mechanical properties were based on the data of steels cooled at low cooling rates. In hot strip mills, however, steels are contin-.
Get Pricew*t*s*n*7.86*.000001= weight of strip D= diameter of winch T= required of the calculation the following formula can be used HP = tension * speed/4500
Get PriceKey words: Hot rolling mill, neural networks modelling, bayesian evidence. INTRODUCTION . 2 x 3000 HP, D.C.. Rolling Thickness Range Rolling. Force. Prediction. Model. Strain resistance calculator. F a km. T. R b he ha v. A commonly
Get PriceAug 1, 2018 d) Speed Rule describes the motor power of main drive and winder coefficient equation as a function of draft, roll/strip roughness, mill For instance, a hot strip mill with WRB and PC, the desirable conditions can be:.
Get PriceSchematic of the Rolling mill used to calculate the roll camber. 46 . Rolling processes are classified into 2 egories: Hot Rolling and Cold. Rolling. Hot rolling is defined as All HP plotters are driven by the H P G L ~ ~ language. Strings of.
Get PriceThe ratio λ = [ a/Lp] = [a/√R.∆t] is used to calculate the moment arm 'a' λ =0.5 for hot rolling and 0.45 for cold rolling. The torque is equal to the product of total
Get PriceClassifiion of basic bulk forming processes. Rolling. Forging. Extrusion. Wire drawing Hot working: Involves deformation above recrystallization temperature, . The above equation is applied to find the maximum force during the A 300 mm wide strip, 25 mm thick, is fed through a rolling mill with two powered rolls.
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