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stretch reducing mill calculation

Calculation of the Required Energy for a Stretch Reducing Mill

This paper shows the drive solution, the speed references calculation and the automatic control of all speeds range for the assembly of the 24 stands belonging to a stretch-reducing mill for

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A Stretch-Reducing Mill (SRM) Computer Simulation

It is well known how a stretch-reducing mill works in order to assure that the final thickness of the tube can assume the predetermined value. This paper regards the

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DEVICE FOR CONTROLLING A STRETCH-REDUCING MILL

Nov 20, 2018· The disclosure relates to a method for controlling a stretch-reducing mill. Tube ends of stretched tubes are optimized by controlling one or more motors of the stretch-reducing mill. The method includes at least one outlet-side wall thickness measurement and an automatic adjustment of the value of a speed change of the motors to the tube wall thickness profile.

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Required Energy Calculation by Hot Rolling of Tubes and of

Key-Words: stretch reducing mill, hot reducing tubes, energy, drive motor . 1 Introduction . The hot reducing process (or reduction) is a specific hot rolling method for tubes [1]. Further on the calculation methodology of all power, energy and thermal parameters is shown, that intervene in the hot reducing

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Calculation Of Speed Of Roll In Stretch Reducing Mill

.. srm stand of seamless mill, phamitech product detail stretch reducing mill [0062]calculation of. sms meer at a glance ceeindustrial.5 stand psm . housingless roll stands. cooling bed with high speed .. stretch reducing mill ( srm). the complete technology book on steel and steel products. Read more

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Automatic Control of Functional Parameters to an Stretch

A methodology has been worked out for the calculation of functional parameters of stretch-reduced tube mill. For performing the respective calculation we have used experimental data obtained by modeling the relevant reducing process. A new method for the control of parameters with PLC is presented. Program Variable

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A Stand Power Predictive Model for Tube Stretch Reducing

Sep 01, 2006· INTRODUCTION The stretch reducing mill (SRM) is a high­productivity process for hot finish-rolling seamless steel tubes of small diameter. A typical SRM is composed of a series of three-roll grooved stands arranged closely behind each other and at 60° displacement relative to the preceding one (Figure 1), the change of the tube diameter being

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Stretch-reducing rolling mill operation method and stretch

The invention relates to a method of operation for reducing stretch-reducing rolling mill for rolling tubes of finite length, containing at least two rolling stands, which are located one behind the other in the feed direction of the pipe, with each rolling stands are at least two interacting roll, each of which at a certain peripheral section of pipe attached to it and roll it, and there are

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(PDF) About of new method for synchronizing control of an

Key words: Speed and stretch control, Stretch-reducing tube mill (SRM). This paper shows the drive solution, the speed references calculation and the automatic control of all speeds range for the

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stand design for stretch reducing mill

stand design for stretch reducing mill . Inicio; stand design for stretch reducing mill

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A Stretch-Reducing Mill (SRM) Computer Simulation

It is well known how a stretch-reducing mill works in order to assure that the final thickness of the tube can assume the predetermined value. This paper regards the

More

Computer Simulation System of Stretch Reducing Mill

Dec 01, 2007· KEY WORDS simulation; tube; stretch reducing mill (SRM) 1. Introduction At present, China has imported over 10 different kinds of stretch reducing trains, but generally for- eign tradesmen only supply automatic control system, rather than software about managing the system and production technology simulation system.

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(PDF) About of new method for synchronizing control of an

Key words: Speed and stretch control, Stretch-reducing tube mill (SRM). This paper shows the drive solution, the speed references calculation and the automatic control of all speeds range for the

More

Automatic Control of Functional Parameters to an Stretch

A methodology has been worked out for the calculation of functional parameters of stretch-reduced tube mill. For performing the respective calculation we have used experimental data obtained by modeling the relevant reducing process. A new method for the control of parameters with PLC is presented. Program Variable

More

Design For Stretch Reducing Mill greenrevolution.org

Reducing the amount of variation, or achieving more wall thickness bench, the plug mill, the stretch reducing mill, and the cross-rolling elongator mill. Both requirements are related to the roll pass design in the Assel mill.

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Stretch-reducing rolling mill operation method and stretch

The invention relates to a method of operation for reducing stretch-reducing rolling mill for rolling tubes of finite length, containing at least two rolling stands, which are located one behind the other in the feed direction of the pipe, with each rolling stands are at least two interacting roll, each of which at a certain peripheral section of pipe attached to it and roll it, and there are

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Multi-stand mandrel-free stretch reducing mill Mannesmann AG

The stretch reducing mill includes a roll pass for roll sets, each of which has three rolls. The roll pass has a roll pass shape that deviates from the circular, takes into account the modification of the shape of a cross-section of a tube, and counteracts a non-circular external diameter of

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Hot Rolling Mill Hydraulic Gap Control (HGC) thickness

The mill stretch force can be measured by load cells or calculated from the measured HGC pressure and can be used to calculate the mill stretch. The mill modulus has to be measured during the commissioning of the system. Within the operating range, the elastic deformation of a mill stand can reach a couple of millimeters.

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Stand Design For Stretch Reducing Mill

Home 10 34 mannesman pipe mill with 20 stand hot stretch reducing mill 10 34 mannesman pipe mill with 20 stand hot stretch reducing mill special forming pipe description 10 34 mother pipe thickness; 5 4 20 stations slide out cassettes capacity: to 4 full normalized schedule 80 pipe induction annealers.

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Production structure and process Arvedi Group

Stretch-reducing mill ATA. Arvedi Tubi Acciaio covers an area of 210,000 sqm of which 110,000 sqm are industrial buildings. The production process Arvedi Tubi Acciaio produces carbon steel welded tubes in the diameter range 17.2 to 355.6 mm in wall thicknesses from 1.2 to 16.5 mm. The raw material is in the form of carbon steel coils that are

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CiteSeerX — Required Energy Calculation by Hot Rolling of

CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract:- This work shows the methodology regarding the calculation of the deformation resistance and of the required energy and power for hot reducing of tubes on a stretch reducing mill (SRM) with the final aim of an optimal sizing of the mill drives. Effective calculations are shown as methodology examples for the

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GB1564848A Stretch reducing mill Google Patents

A multi-stretch reducing mill may therefore be provided as described in the following disclosure in which a series of adjacent mill stands are secured at the top to a massive, retaining beam, which extends the full length of the mill, over the tops of the individual mill stands The retaining beam is connected or arranged to be connected to each

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METHOD FOR ROLLING TUBULAR MATERIAL STOCK IN A STRETCH

METHOD FOR ROLLING TUBULAR MATERIAL STOCK IN A STRETCH REDUCING MILL . United States Patent 3645121 . Abstract: A method for rolling down tubular material in a rolling mill wherein in the vicinity of the starting sections and/or end sections of the tubular material normally having thickened portions a stepwise variation of the rotational speeds

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Understanding Rolling Process in Long Product Rolling Mill

Nov 27, 2015· In a continuous mill, speed matching the stand to achieve a constant mass flow through the mill assures a low cobble rate and fewer defects. High tension can stretch reduce the cross section of the bar making shape control very difficult. At the extreme, tension can pull the

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