pass design of stretch reducing mill

  • A Review of Rolling System Design Optimisation V. Oduguwa - Core

    geometry avoiding roll defects whilst maximising the reduction in the cross section MILL. ENGINEERING. Thermal camber. Mill spring. Roll effects. Mill stretch inter-stand operations, mill engineering, roll pass design, straightening etc.

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  • diminishment of internal polygonization of tubes in hot stretch

    The hot stretch-reducing of steel tubes is performed usually in temperature of 900 to drives of stretch reducing mill systems with the widest diameter range of 

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  • seamless tube plants - SMS group

    Oct 16, 2007 select the optimal process and design the plant to meet all relevant Stretch- reducing mill. FPS technology .. from SMS group's stretch-reducing and sizing mills. .. working pass – with a tapered roll groove portion and.

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  • MPM Detail Page

    Sizing Mill or in a Stretch Reducing Mill The rolls in the last two stands have a very close pass design and do not perform any significant forming work on the 

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  • Computer Simulation System of Stretch Reducing Mill - ScienceDirect

    The principle of the stretch reducing process is analyzed and three models of pass design are established. The simulations are done about variables, such as,  

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  • steel MIll supplY eXperts

    rolls through to stretch reducing and backup rolls. . experience to develop and design Mill. Stands to suit material as is passes through and must therefore.

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  • Quality Prediction and Control of Reducing Pipe Based on EOS

    Feb 12, 2014 Since tension reducing mill is the last forming equipment in steel pipe the pipe head gradually passes various stands and its speed increases 

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  • MPM Detail Page

    Sizing Mill or in a Stretch Reducing Mill The rolls in the last two stands have a very close pass design and do not perform any significant forming work on the 

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  • MODELING AND CONTROL OF PLATE - Semantic Scholar

    the plate enters and leaves the mill stand from pass to pass. A non-linear control devoted to the controller design. The controller con- upper roll stretch inertial frame. pH. pS hex upper chock friction lower chock friction upper housing.

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  • PQF Detail Page

    The PQF overcomes the technological limitations of the 2-roll type mill rolling and The main advantages due to the 3-roll pass design are: Lower longitudinal tension and material stretching (uncontrolled wall thickness reduction) at the flange 

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  • numerical design of a hot-stretch-reducing process for welded tubes

    Key words: hot-stretch reducing, welded tubes, numerical model of design, calibrate, coefficient of number of passes of the stretch-reducing mill depends on.

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  • Minimizing wall thickness variation in seamless tubing - The Fabrior

    Aug 28, 2003 Seamless tube typically is manufactured on a two-roll piercer mill. mandrel pipe mill, the push bench, the plug mill, the stretch reducing mill, and the Both requirements are related to the roll pass design in the Assel mill.

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  • perfection of processes of seamless steel tubes production

    May 14, 2010 mills; helical floating-mandrel rolling in a three-roll. Assel mill and stretch- reducing mills. Just due to the . of process, design features of installations, performance . carried out in mills in which roll pass of each subsequent.

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  • Research and Appliion of Thickness Control - Bentham Open

    Dec 23, 2014 typical modern thickness control system design and implementation of a steel plate mill is discussed together with the im- pact on the positioning. Because the reduction of hot steel in the roll bite Because roll force is one indior of mill stretch, it is neces- . forward is only available on reverse passes.

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  • RoHing Mill Roll Design - Durham e-Theses - Durham University

    Jan 1, 2003 Rolling is the process of reducing the thickness or changing the cross-section of a long workpiece by . mill, motor and the whole process of roll pass design. The roll .. and screws, and stretching of the housing. Roll mill 

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  • An investigation on the roll force and torque fluctuations during hot

    Mar 28, 2014 If the thickness variation of the hot-rolled aluminum strip can be reduced, the roll pass design, have a significant influence on gage variations, the .. of the product, the mill stretch and vibrations of the rolling mill, and roll 

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  • Automatic Control of Functional Parameters to an Stretch-Reducing

    drives and the automation structure for a stretch-reducing mill for seamless having 28 rolling stands organised in three separate .. Stand position number of the initial pass stand. IPSF External FPGA Design, WSEAS TRANSACTIONS on.

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  • seamless tube plants - SMS group

    from SMS Meer's stretch-reducing and sizing mills. Plant owners can is why SMS Meer has expanded the design concept for its PQF® plants of ACO tunnel design to include two . working pass – with a tapered roll groove portion and.

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  • Improvement of rolling 6 mm thin plates in plate rolling mill PT

    where M is mill modulus, F/M is mill stretch and S0 is initial roll gap. mill stand has its own design capacity and main drive limitation, thickness reduction is Then, finish rolling temperature (FRT) will affect the number of pass needed.

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  • Hot Rolling Mill Hydraulic Gap Control (HGC) thickness control

    As the strip passes between the work rolls, the thickness is reduced. The rolling measured HGC pressure and can be used to calculate the mill stretch. The mill.

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  • Forming Rolls, Tube Forming Rolls, Welding Rolls, Sizing Rolls

    Breakdown Rolls; Forming Rolls; Fin pass Rolls; Welding Rolls; Sizing Rolls; Turk's Head Rolls ATLAS designs manufactures entire range of forming rolls for the production Stretch reducing rolls are offered in tool steel with special heat treatment for improved ROLLS FOR CONTINOUS CASTING ROLLING MILL

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  • Design and Analysis of Hot Rolls Using Finite Element - IJARnD

    The ultimate goal in hot roll pass design is to manufacture the correct size The load in the mill spring is made up of several components including: bending of rolls, compression of the bearings, chocks and screws, and stretching of the housing. Roll force can be reduced by (1) reducing friction; using smaller diameter 

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  • Roll Pass Designing in Continuous Bar Mills - SlideShare

    Jul 29, 2010 I have tried to give an idea that what pass designing actually is. The reduction must be applied after a 90-degree rotation of the bar at each stand. the roughing mill

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