tandem mill back up rolls in valparaiso


United States Steel Corporation Sheet and Tin Operations

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 …

CONTROL PROCESS FOR A COLD ROLLING MILL BY …

The grades have 3 and 5 Chromium together with Molybdenum and Vanadium differentially hardened to achieve bainitic to martensitic shell with spheriodized pearlitic core Chodan Sazan produces forged steel back up rolls for hot and cold strip mills

Z-mill - Wikipedia

mill machine and strip quality Fig 1 Fig 1 Strip faults due to rolling mill vibration The integrated control process is made to analyse the vibrations which are produced on the work roll chocks and backup roll chocks The noise and chatter signals are carried out in the time and frequency range The

Aluminum Mill Rolls - Union Electric Åkers

Analysis of Roll Stack Deflection in a Hot Strip Mill Mill Run-out Table Back-up Roll Work Roll Figure 1 Layout of a typical Hot Strip Mill required thickness is achieved in a four-high six-stand tandem finishing mill F 1 to F 6 at a finish rolling temperature of 870 - 900oC depending on the grades Centrifugally cast high chrome

Backup roll contour for edge drop control technology in

Our range includes work rolls and back up rolls for hot roughing reversing and tandem rolls cold breakdown rolls finishing rolls and foil rolls Aluminum mill rolls are manufactured at our facilities in the US and Slovenia Main Roll Grades The following table gives a general overview of our main grades in this product segment

Modifi cation Method of Back-up Roll Bearing by Replacing

Adres 4üncü Sokak Jay Organize Sanayi Bölgesi İsfahan İran Email info csroll com Ana sayfa Hakkımızda

manufacturing process exam 2 Flashcards Quizlet

Steel rolled in two-stand reversing cold mills is suitable for a wide range of applications offering the best possible performance in terms of quality and productivity A two-stand reversing cold mill can deliver capacities between 300 000 t a of thin-gauge products or 1 000 000 t a …

Cold Mill Rolls Work Rolls Backup Rolls Backup Rolls

Based on ANSYS software and industrial rolling of edge drop control a 3-dimensional finite element model of roll stacks was built for 1 700 mm tandem cold rolling mill Using this model the reasons for some problems exists on the 1 700 mm tandem cold rolling mill configuration of the conventional backup roll and tapered work roll system such as the lower shape control the poor edge drop control

Cold Mill Work Rolls - Union Electric Åkers

Macroscopic investigations of spalled 3 Cr-variety forged steel work-rolls used in the tandem mill of an integrated steel plant showed steel strip welding on roll surfaces Microstructural observations of roll samples at regions away from strip-welded zones showed the desired uniform dispersion of fine globular carbides in tempered martensite

Backup roll contour of a SmartCrown tandem cold rolling mill

Apr 21 1987· What is claimed is 1 A tandem mill comprising a plurality of stands characterized in that the final stand is a sleeve expanding mill at least one of the stands exclusive of the last stand is a sleeve sliding mill or an intermediate back-up roll shifting mill …

Genesis of spalling in tandem mill work-rolls Some

Cold Mill Rolls Work Rolls Backup Rolls Backup Rolls Sleeves Induction Hardened Rolls Rolls For Cold Rolling Mills Hi Rolls Skin Pass Rolling Mill Work Roll Who We are We are manufacturer of rolls and roll assemblies complete with bearing assemblies

Backup roll contour of a SmartCrown tandem cold rolling mill

Feb 28 2014· GW Rolls and Roll Systems are adapted and designed to the rolling mill and casting conditions at our customer s plant For the area of cold rolling mills we manufacture high-quality backup

Backup Rolls Manufacturers India Back - Rolling Mill Rolls

such plate rolling mill modifi cation by the back-up roll bearing replacement JTEKT has carried out numerous such modifi cations including the tandem cold mills This paper presents JTEKT s method of the rolling mill modifi cation by replacing the oil fi lm bearings with rolling bearings as the back-up roll …

Cold Rolling Mill Rolls Manufacturer Hot Rolling Mill

Based on the fact that the backup roll for 2250 CVC tandem mill in hot rolling has serious and non-uniform wear and the edge spalling often happens a new backup roll …

Forged Steel Back up Rolls - csroll com

Enhancing the self-maintenance of the backup roll and the work roll After the FSR backup roll is used the states of roll contact and roll wear are improved and the contour of G H Yang et aL Backup roll contour of a SmartCrown tandem cold rolling mill 361 the backup roll and the work roll in good self-maintenance is made and the consumption

811 Frequency analysis of chatter vibrations in tandem

Start studying manufacturing process exam 2 Learn vocabulary terms and more with flashcards games and other study tools Search Create Log in Sign up two high mill tandem rolling backup rolls crowned rolls defects in rolling 4 wavy edges zipper cracks edge cracks alligatoring types of rolling processes 5

Back-up Rolls - Union Electric Åkers

Enhancing the self-maintenance of the backup roll and the work roll After the FSR backup roll is used the states of roll contact and roll wear are improved and the contour of G H Yang et aL Backup roll contour of a SmartCrown tandem cold rolling mill 361 the backup roll and the work roll in good self-maintenance is made and the consumption

Sudipta Sikdar et al Analysis of Roll Stack Deflection in

ANALYSIS OF ALTERNATIVES ANALYSIS OF ALTERNATIVES non-confidential report Legal name of applicants Hoogovens Court Roll Surface Technologies V O F WAVEC Trattamento Cilindri Laminazione S r l

Advanced Reversing Cold Mills by Primetals Technologies

Tandem Mill Back Up Roll Reversing Mill Back Up Roll General Use FB-7 5 Cr Steel Tandem Mill Back Up Roll Reversing Mill Back Up Roll High Hardness Deep Hardness penetration NBR Special Material Continuous Tandem Mill Back Up Roll Fatigue Resistance Wear Control NBX Special Material Hot Strip Mill Back Up Roll for High

Genesis of spalling in tandem mill work-rolls Some

Perfect for such an operation are SMS group tandem cold mills - our powerful flagships in the cold rolling sector You can operate them in either batch or continuous mode as CTCM Continuous Tandem Cold Mill Optionally it s possible to arrange them inline as coupled pickling line tandem cold mills PL TCM

Backup roll contour for edge drop control technology in

A Z-Mill or Sendzimir Mill is a machine for rolling steel Unlike a traditional rolling mill this 20-high cluster mill configuration utilizes cascaded supporting rolls to apply force on the small work rolls in the center This allows the application of a higher roll pressure without bending the work rolls which would result in poor metal quality

Tandem mill - Sumitomo Metal Industries Ltc

Rolls for Hot Strip And Plate Mill High Chrome Steel Rolls EN-HiCr Iron Rolls Enhanced ICDP Rolls HSS Rolls Cast Back-up Rolls Rolls for Cold Rolling Mill Introduction Of Production Capacity Facility Machining Capacity Chemical Composition Property Sendzimir Rolls Rolls for Long Products Mill Alloy Cast Steel Rolls Adamite Rolls

Rolling metalworking - Wikipedia

Abstract Rolling force is the most important technical parameter for the tandem cold mill In this paper the precise models and calculation process for the rolling force are introduced The rolling force model is based on the Bland-Ford and Hill theory and the roll flatten radius is …

Tandem Cold Mill - scientific net

Dec 24 2018· What are the Different Types of Rolling Mill Rolls The two in the middle are smaller than the top and bottom rolls which are also known as backup rolls 4 Tandem Rolling Mills The Tandem Rolling Mills comprises of a set of two or three strands of roll set in parallel alignment A continuous pass might be possible through each one with the

US3934438A - Method of long-edge shape control for tandem

A method of shape control for a tandem mill for rolling strip wherein the shape of the rolled strip at the delivery side of the final stand is detected to provide a signal corresponding to the long-edge shape whereby the pattern of roll bending force for two or more latter stands are adjusted according to the signal or signals obtained in order to effect desired shape control without causing

Rolling Mill Backup Rolls Manufacturers and Suppliers

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

Different Types of Rolling Roll Mills used by Indian Steel

Riggers would change all back-up rolls in Cold Reduction as 4 Tandem replaced 1 Tandem Mill management violated Arbitration Award T-759 This grievance was filed in the Second Step of the grievance procedure Janu­ ary 10 1964 Grievance 155-2410 We the undersigned riggers protest Millwrights changing back-up rolls on 4 Tandem Mill on

Rolls-Forged Rolls-Backup Rolls - metals com

A tandem mill is a special type of modern rolling mill where rolling is done in one pass In a traditional rolling mill rolling is done in several passes but in tandem mill there are several stands =2 stands and reductions take place successively The number of stands ranges from 2 to 18

GW Rolls and Roll Systems - YouTube

A Z-Mill or Sendzimir Mill is a machine for rolling steel Unlike a traditional rolling mill this 20-high cluster mill configuration utilizes cascaded supporting rolls to apply force on the small work rolls in the center This allows the application of a higher roll pressure without bending the work rolls which would result in poor metal quality

Z-mill - Wikipedia

Oct 24 2001· It is well known that experience is playing a vital role in the selection of operating parameters in tandem cold rolling mills In the present work an attempt is made to develop a set-up model for tandem cold rolling mill to maximize the throughput