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Following are the results of the calculation of the roll load for various passes of the material through the rolling mill on the basis of the output voltage obtained in the strain indicator circuit. III. CALCULATION OF LOAD FROM W.L. ROBERT‟S FORMULA f V c l e Where f: Specific rolling force (force per unit width of material) V c

tube mill design calculation force roll gmecrusher.com. Rolling Mill Speed Calculation ... roll force, torque, power during steel rolling mill ... be a rolled carpet or a rolled sheet of paper from the paper mill.

May 30, 2013· Power – It is applied to a rolling mill by applying a torque to the rolls and by means of strip tension. The power is spent principally in four ways (i) the energy needed to deform the metal (ii) the energy needed to overcome the frictional force (iii) the power lost in the pinions and power transmission system and (iv) Electrical losses in ...

– Calculate roll separation force ("rolling force") and torque – Processing Limits – Calculate rolling power. Prof. Ramesh Singh, Notes by Dr. Singh/ Dr. Colton 13 Flat Rolling Analysis • Consider rolling of a flat plate in a 2-high rolling mill

rolling mill calculation. rolling mill horsepower calculation POWER IN ROLLING Power is applied to the rolling mill by applying Power is applied to the rolling mill by applying Torque to the rolls and by using roll strip The ratio λ = [ a/Lp] = [a/√R.∆t] is used to calculate the moment arm 'a'. torque in rolling mills calculation formula with example. ...

Calculation of roll load and pressure acting on chocks ... Top Roll Choke is constrained at the top of the Rolling Mills by an adjustable Power Screw Mechanism. Reaction force is considered as the actual force acting on the choke and the bottom surfaces are considered to be constrained. Therefore, the cylinder pressure is converted to force and ...

Excell sheet calculation torque speed power for excell sheet calculation torque speed power for rolling mill prompt caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment,...

The working roll diameter is 500 mm. Determine the rolling load on the rolling stand if the co-efficient of friction is 0.07. Also determine the rolling torque. Solution: Example 2: A billet of area of section 150 mm x 150 mm is rolled to 120 height in a rolling mill with 600 …

May 01, 2018· During manufacturing of heavy strips and plates from difficult-to-form steel grades on sheet and wide-strip rolling mills there is a problem of exact calculation of power parameters of rolling.

The Calculation of Roll Force and Torque in Hot Rolling Mills R. B. Sims, B.Sc. Proceedings of the Institution of Mechanical Engineers 1954 168 : 1, 191-200

The layout of a rolling mill varies, from a simple single stand mill to several stands positioned either side by side or in a line. A mechanism, commonly called a roller table, directs the work piece to the rolls, and another roller table for handling the pieces emerging out of …

Calculating Mill Drive RPMs: Is Your Mill Up to Speed? By Robert A. Sladky Vice President Tube Mill Engineering Many "W" style mills that have the ability to shim up the bottom driven shafts in each section to maintain metal line after tooling is reworked, and are many times also equipped with a individual motor drive in each of the three sections as illustrated below.

Sep 06, 2011· Calculating Mill Drive RPMs: Is Your Mill Up to Speed? By Robert A. Sladky Vice President Tube Mill Engineering Many "W" style mills that have the ability to shim up the bottom driven shafts in each section to maintain metal line after tooling is reworked, and are many times also equipped with a individual motor drive in each of the three sections as illustrated below.

Rolling Mill Calculation. 201924power in rolling power is applied to the rolling mill by applying torque to the rolls and by using roll strip tensione total rolling load is distributed over the arc of contactowever, the total rolling load can be assumed to be concentrated at point along the arc of contact ata distance a from the line of centers of the rolls.

9 17 Rolling Mills Equipment is massive and expensive Rolling mill configurations: – Two-high: two opposing rolls – Three-high: work passes through rolls in both directions – Four-high: backing rolls support smaller work rolls – Cluster mill: multiple backing rolls on smaller rolls – Tandem rolling mill: sequence of two-high mills 18 Various configurations of rolling mills: (a) 2 ...

May 30, 2013· Power – It is applied to a rolling mill by applying a torque to the rolls and by means of strip tension. The power is spent principally in four ways (i) the energy needed to deform the metal (ii) the energy needed to overcome the frictional force (iii) the power lost in the pinions and power transmission system and (iv) Electrical losses in ...

Feb 25, 2016· Calculation of roll force is important because calculation of torque and power in a rolling mill is based on calculation of roll force. Accurate prediction of roll force for grooved rolling is ...

Excell sheet calculation torque speed power for excell sheet calculation torque speed power for rolling mill prompt caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment,...

rolling mill horsepower calculation. POWER IN ROLLING - idc-onlinePOWER IN ROLLING Power is applied to the rolling mill by applying Torque to the rolls and by using roll strip tension.The total rolling load is distributed over the arc of contact. However, the total rolling load can be assumed to be concentrated at point along the arc of contact ...

This paper presents a completely new approach to the mechanics of the Sendzimir hot planetary rolling mill. Previous work on this subject, by R. Tovini, included determinations for the distribution of the advance of the strip, the draft, the rolling load, the torque and the horizontal backthrust for the whole range of positions which the planetary rolls made, whilst contacting the hot metal.

speed N to reduce power. 5.4 Shape rolling: In shape rolling, the work is deformed into a contoured cross section. Products made by shape rolling include construction shapes such as I-beams, L-beams, and U-channels; rails for railroad tracks; and round and square bars and rods (see Figure 5.5). Most of the principles that apply in flat rolling ...

The calculation of rolling force. When manufacturing sheet products it's important to understand the rolling force. This is because you need it to set the appropriate roll gap on the mill, accounting for the stretch of the stand. The prediction of rolling force can be challenging due to the large number of inter-connected process variables ...

Fundamental concept of metal rolling 1) The arc of contact between the rolls and the metal is a part of a circle. 2) ... Example: Calculate the rolling load if steel sheet is hot rolled 30% from a 40 mm-thick slab using a 900 mm-diameter roll. The slab is 760 mm wide.

mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential ...

Rolling of Steel in a Modern Long Product Rolling Mill . Mill is the energy consumption the power supplied to the mill is used primarily to lift the load medium and charge additional power is required to keep the mill rotating 813 power drawn by ball semiautogenous and autogenous mills a simplified picture of t Rolling mill power calculation