tandem mill back up rolls

  • Cast Back up Rolls Expert of Mill Rolls

    Cast Back up Rolls TS Rolls Cast Back Up Rolls are produced to a high hardness level of up to 75 HSC through a Differential Hardening process The superior wear and mechanical hardening resistance are related to the bainitic / martensitic matrix and complex carbides finely distributed In the Differential Hardening process the monoblock rolls

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  • The back up rolls

    2021 9 26 The back up rolls Designed to provide a strong support to the work rolls the back up rolls avoid any work rolls deflection They ensure the good performance of the whole mill Application.

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  • Backup Rolls Manufacturers India Back Up Rolls Suppliers

    2013 9 1 Backup Rolls For Rolling Mills Back up roll is the largest and heaviest roll of a rolling mill Using the weight it delivers the rolling force to the work roll and supports it We at our manufacturing unit are involved in casting and fabricating of heavy duty backup rolls which uses excellent steelmaking and forging technology to manufacture clean and flawless back up rolls for cold rolling

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  • SMS group Tandem cold mills Steel

    The production of high quality strip in volumes of up to 2.5 million tons per year poses an enormous challenge Perfect for such an operation are SMS group tandem cold millsour powerful flagships in the cold rolling sector You can operate them in either batch or continuous mode as CTCM Continuous Tandem Cold Mill .

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  • Duplex Cast Steel Back up Rolls

    Composite steel back up roll bimetallic composite casting process to produce a full flush the outer layer of high Cr content of 3 5 steel mild steel core has good strength and toughness Special casting process to ensure the outer layer and the core portion has a good metallurgical combine.

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    METALLURGICAL APPLICATION TO WORK AND BACK UP

    1988 11 23 Requirements of Rolling Mills should be considered Rolls cost It represents the 5 of the direct cost of a strip sheet rolling mill and 10 including the operation of the roll workshop Cost of no quality The inlaid calamine because of the roll represents 150 000 € up to 450 000 € /year depending on the type of Hot Strip Rolling Mill.

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    Application of Machine Learning to Tandem Cold Mill

    2021 4 22 back calculation from the above model equation or a multiple regression calculation On the other hand Hitchcock’s roll flattening the Fig 1 Tandem cold mill setup flow chart ory assumes that the shape of the roll surface remains Application of Machine Learning to Tandem Cold Mill Setup In the discussion up to the preceding paragraph

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  • 3 High Rolling Mill

    2021 9 22 3 High Rolling Mill Three high rolling mills consist of a large back up roll small work roll and another large back up roll The purpose is to have a very minimum amount of reduction Three high mills are commonly used for making bearing material for gasoline and diesel engines see cladding Three high rolling mills are also used to reduce

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  • Forged Back Up Rolls for Hot and Cold Rolling Mills

    2021 10 14 They are forged in hydraulic presses in order to achieve high levels of toughness These rolls used in continuous Hot Strip Mills Steckel Mills and Cold Rolling Mills are capable of facing the most severe rolling conditions Our latest developments of Forged Back Up Rolls offer higher performances than Cast Back Up Rolls.

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  • JSW Cold Rolling Mills

    Salient Features of JSW Cold Rolling Mills Widest Cold Rolling Mill for automotive steel in India First Continuous Annealing Line India State of the art continuous galvanizing line with dual pot system for GI GA production Higher Strength up to TS 980MPa SEDDQ grade which cannot be produced by current Indian facilities.

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    Technical Article Rolling Mills Revamp

    6 Rolling Mills Revamp Roll Upgrades for Extreme Loads Figure 5 Roll load and fillet radius detail Case Study Existing Solution and Problem Description This application is performed on rolls of 2 HI mills but could be extended to the back up rolls of 4 HI mills Figure 5 shows the roll load and current fillet radius detail.

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  • Rolling Mill Roll

    We manufacture the Rolling Mill Roll Steel We specialize in all kinds of adamite rolls having diameter up to 1500 mm and length up to 10000 mm in all international standards We provide high quality rolling mills rolls as per designing and specification of our customers requirement.

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  • Rolling Mill Backup Rolls Manufacturers and Suppliers

    Equipped with one of the best back up roll brands Kaida Roll Group is one of competitive skin pass mill roll temper mill roll tandem mill roll manufacturers and suppliers in China welcome to visit our website Forged steel back up roll is mainly used in 4 Hi mill and 6 Hi mill The diameter of roll

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  • Coupled Pickling Line Tandem Cold Mill

    COUPLED PICKLING LINE TANDEM COLD MILL High capacity production of high quality products For a wide range of products the required strip thickness flatness and surface quality can be achieved more economically by linking the pickling and cold rolling processes.

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  • PDF VIBRATION MONITORING OF TANDEM MILLS AT

    T able 1 Characteristics of the two cold roll tandem mills at Tilleur Fig 2 The 4 stand cold roll mill left and the contr ol room for The back up rolls could also be .

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  • High Hardness forged back up roll Taixi Mill Roll

    2019 5 5 High Hardness forged back up roll The modern forging roll joint unit has really realized high speed and continuThe productivity of roll has increase greatly The cold olled products has devehigh precision high quality and multi model.

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    Set Up Generation System for a Tandem Cold Mill

    2016 2 26 Set up generation is an important aspect in the operation of tandem cold mills It defines stand reductions speeds and power for the drives roll forces and interstand tensions for the tandem cold mill control system Set up optimization should lead to improved thickness surface finish and shape perfor mance of the products.

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    Hot Rolling Mill Hydraulic Gap Control HGC thickness

    2015 11 4 1.4 Oil Film Compensation of Back up Roll Bearings In order to support the high rolling force often friction bearings are applied as back up roll bearings In this type of bearing an oil film separates the chock from the roll shaft In a given bearing the oil film thickness depends on the viscosity of

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  • UZTM KARTEX

    from 0 45 to 0 95 Sleeve chromium content from 1 40 to 5 50 Sleeve hardness HS from 35 HS to 75 HS Hardened layer mm Penetrates the full thickness of the sleeve up to 200 mm due to through heating Forged steel backup rolls for cold and hot rolling plate mills Basic parameters

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  • In a four high rolling mill the diameter of backing up

    In a four high rolling mill the diameter of backing up rolls is the diameter of working rolls a Equal to b Smaller than c Larger than d None of these

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    Back up Rollers for multi roll cold rolling mills

    2019 5 24 back up rolls For an approximate representation the following layout can be taken shafts A D E and H are each subjected to 60 of the rolling force shafts B C F and G are each subjected to 40 of the rolling force Legend for Figure 4 Figure 4 Support shaft with back up rollers type 2 and support saddles Support shaft Intermediate

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  • Danieli Wean United

    Pickling Line coupled with Tandem Cold Mill 216 Hot Dip Galvanizing Lines 218 Continuous Annealing Lines 217 Electrolytic Tinning Lines Quick work and back up roll changhing for rolling mills Q MPE Mechanical properties estimator for hot rolled flat products Sampling solutions for any strip thickness width range up to API

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  • Products › Flat › Pickling Line coupled with Tandem Cold

    For high strength steels and automotive applications 33/115 The combination of these two lines is a mix of high efficiency features The continuous pickling line coupled with a multi stand tandem cold mill provides significant improvements in terms of plant efficiency

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  • How was the tandem rolling mill born

    2021 6 4 The rolling industry is in constant development as the needs of the goldsmith and industrial sectors are always changing Thanks to an in depth study of the market and a proactive dialogue with its target Invimec has provided a huge contribution to the technological development in this field designing an innovative solution which is nowadays of common use the tandem rolling mill.

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  • 60 4 stand Tandem Cold Rolling Mill

    Size Mill 60 Size RollsBack Up Roll 53 x 60 Work Roll 22 x 60 Roll BearingBack Up Roll Tapered Morgoil TypeWork Roll Tapered Roller Type Drives#1 Stand 1 3500 HP Motor#2 3 4 STDS 2 2500 HP MotorTotal Mill HP 18 500 Speed Maximum 3300 FPM 700 VoltsTheoretical Reduction Capability 30 Stand Speed Average 2100 FPMAverage Reductions 65 70 TotalStand Average

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  • Tandem Cold Rolling Mill

    Abstract The taper work roll of the 1700 mm tandem cold rolling mills had some problems in the course of using and the taper roll contour was ground difficultly and the difference between the designed contour and grinding contour was very big and the work roll and backup roll had very serious and non uniform roll wearing and even often had roll spalling and above those problems affected

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  • Tandem rolling mill

    12 The tandem rolling mill of claim 11 including the smallest diameter backup roll having a diameter of about 85 to 90 percent of the largest diameter backup roll in said finishing train 13 A tandem rolling mill comprising a plurality of mill stands each having a pair of work rolls and a pair of associated backup rolls

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    Adaptation for tandem cold mill models

    2016 2 26 2 Cosipa four stand tandem cold mill Cosipa cold mill is a coil to coil four high four stand mill in which each stand is composed by two backup rolls and two work rolls the later coupled to dc motors controlled by dig ital speed regulators totaling 16MW of nominal power Two hydraulics actuators installed at the top of the stands com

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  • Cold Mill Rolls

    2010 3 14 PsrollsWe are manufacturer of rolls and roll assemblies complete with bearing assemblies other components manufacturing cold mill rolls work rolls backup rolls backup rolls sleeves induction hardened rolls rolls for cold rolling mills hi rolls hi rolls skin pass rolling mill work roll drive rolls cold rolling mill rolls cluster

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  • China Forged Special Steel Back up Roll Manufacturers

    As one of the most professional forged special steel back up roll manufacturers and suppliers in China LONSUN is featured by high quality steel mills with competitive price Please rest assured to buy good quality forged special steel back up roll from our factory.

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  • Types of Rolling Mills

    2021 9 30 Cluster Mill The cluster mill consists of two working rolls and four or more backing up rolls The number of backup or supporting rolls depends upon the amount of support required for the working small diameter rolls Cluster mill is generally used in cold rolling operation The arrangement of cluster mill is shown in Fig 2.9 d Type # 5

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  • Forged Steel Roll

    2020 2 27 Forged Steel Back Up Roll Definition The forged back up roll is a mill roll that supports the work roll and intermediate roll for the purpose of avoiding deflection of the work roll and affecting on the yield and quality of the plate and strip rolling mill This is the key function of back up roll to ensure the operation of the whole rolling mill The common materials are 9Cr2Mo 86CrMoV7

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  • Forged Back Up Rolls

    Forged Back up rolls Forged steel back up roll is mainly used in 4 Hi and 6 Hi mills.The diameter of roll barrel can be 350mm 1600mm The materials of back up

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  • Premature failure of work rolls in tandem mill Some

    The microstructural features of prematurely spalled tandem mill work rolls were examined in an attempt to correlate microstructure with spalling behavior and roll performance Spalled samples were collected from work rolls that had shown variations in roll life under similar conditions of mill usage Optical microscopy revealed that a fine dispersion of spheroidal carbides in a matrix of

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    Hot Rolling Mill Hydraulic Gap Control HGC thickness

    2015 11 4 1.4 Oil Film Compensation of Back up Roll Bearings In order to support the high rolling force often friction bearings are applied as back up roll bearings In this type of bearing an oil film separates the chock from the roll shaft In a given bearing the oil film thickness depends on the viscosity of

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  • Mill Rolls

    The WHEMCO companies in Pennsylvania and Ohio USA manufacture a full range of mill rolls spun cast iron cast steel and forged steel We manufacture both cast and forged rolls for the most flat hot and cold rolling applications We are now the sole producer of both cast work rolls and backup rolls in

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