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Yield Cost Calculation In Hot Roll Mill

  • Roll Alignment in a Continuous Pickle Line

    The flattener was found to be out of alignment and in the opposite direction of the lead in pinch rolls Once the root cause of the misalignment had been identified corrections were made to the roll stands corrected for square rolls leveled flattener bridle rolls level and square and the entry payoff stubs were rebuilt and replaced.

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  • The Calculation of Roll Force and Torque in Hot Rolling Mills

    Equations are derived for the normal roll pressure specific roll load and torque in hot rolling mills using the condition for plastic deformation in rolling derived by

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  • Online prediction of mechanical properties of hot rolled

    Jan 01 2021  The hot rolled steel plates are widely used in various industrial rate of each hidden layers was set to 0.2 which meant that only 80 neurons in the hidden layer were involved in the calculation at each iteration As a conventional approach 80 of the data was labelled as training data and the remaining 20 as testing data

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  • A COST MODEL FOR THE EFFECT OF SETUP TIME REDUCTION

    possible by quick and frequent roll changes in the hot rolling mill A cost model was developed and evaluated by system dynamics simulation Sterman 2000 in order to analyse the effect on overall mill economy as margin costs for reheat energy tied capital and work roll consumption vary in response to changed setup times.

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  • Coil Calculator by BS Stainless

    Dec 10 2020  Coil Calculator Calculate the outer diameter the weight the length or the weight per mm width of the coil by completing the form below The calculated results are only to be used as a guide and cannot be guaranteed entering incorrect values will result in an invalid result.

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  • Sheet metal products how to calculate production cost

    The formula to calculate the cost of the machining is the following For example with a cycle time of 12 seconds efficiency 80 5 and a Machine hourly cost of 77 3 Euro we obtain MACHINING COST = 77 3 12 0 805 3600 = 0 32 Euro So the total direct cost

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  • HIGH STRENGTH AND ULTRA HIGH STRENGTH HOT ROLLED

    schedule on the run out table of the hot rolling mill But not only the cooling section cooling rates intermediate temperatures coiling temperature of a hot strip mill plays an important role for the production of hot rolled high strength steel grades Especially for microalloyed thermomechanically

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  • A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING

    Secondary scale on hot strip and the impact on wear is another issue Stresses from Hertzian pressure in 4 high cold mill back up rolls were measured years ago the results were never published but of high interestalso maybe later K H Schröder July 2003 K H Schröder A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS

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  • steel cost modelhot rolled coil conversion costshrc

    The HRC conversion cost is for a notional medium size steelmaker who purchases slab on the open market and rolls this into coil on a traditional tandem hot rolling mill of perhaps 1 or 2 mt per year capacity Average labour productivity is assumed at a blue collar wage cost of 20k/year.

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  • Roll Pass Designing in Continuous Bar Mills

    Jul 29 2010  Roll Pass Designing in Continuous Bar Mill Billet Size Area Finished Size Area of finished bar Co efficient of elongation No of passes 150 22500 12 113.1429 198.8636 20.78453 150 22500 16 201.1429 111.8608 18.52503 150 22500 20 314.2857 71.59091 16.77243 150 22500 22 380.2857 59.16604 16.02385 150 22500 25 491.0714 45.81818 15.01982 150 22500

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  • Roll YieldOverview How It Works How To Calculate

    In order to calculate roll yield an investor needs to know the rates of the two futures contracts and the spot price of the underlying asset which in this case is a commodity For example assume that June soybean futures are trading at 100 while in July they are trading at 95 the spot price being 100.

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  • EssEntial tEchnical Data on stEEl REinfoRcEmEnt

    Yield stress mPa Ductility class Product Description source material type size Range D5OON N 500 N Hot rolled deformed rebar 500PLUS REBAR TEMPCORE TC MICROALLOY MA CONTISTRETCH CS N12N40 straight stock lengths N10 N12 N16 off coil R250N R 250 N Hot rolled round rebar Mild Steel R6 R10 R12 off coil R16 –R28 straight

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  • Steel Foundry Practices and Performance Benchmarking

    capacity For a steel mini mill a new site can be constructed for a cost of about 350 per ton per year The typical selling price of hot rolled coil HRC is currently about 600 a ton To add a ton of capacity to the steel foundry the costs ranged from 600 to 2 800 per ton per year Most responses were from 1 500 to 2 000.

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  • BAR DATA HANDBOOK AISI/SAESteel Dynamics

    Hot Rolled cut lengths are available between 16 and 40 feet Steel Dynamics can maintain all ASTM tolerances for diameter length and straightness on all hot rolled products The Engineered Bar Products Rolling Mill metallurgical lab has the capability to provide

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  • Temper Passing Metal Processing Machinery American Steel

    A temper mill is also used to make cold rolled after annealing to assure a consistent quality After the material is made hot rolled it needs to be pickled and cold reduced Cold reducing increases the yield strength and the material can be too hard to be used for any type of deep draw work or accurate bending.

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  • Hot Rolled Steel Cold Rolled SteelDifference Advantages

    May 22 2019  The rolls induce plastic deformation Thus the yield strength of cold rolled steel is higher than that of hot rolled steel As an example a hot rolled steel product may have a yield strength of 235 MPa In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 MPa.

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  • Hot Strip Millan overview ScienceDirect Topics

    G Engberg L Karlsson in Fundamentals of Metallurgy 2005 11.5.1 Hot rolling Mill data from the hot strip mill has been used to calculate the mean flow stress in each pass assuming the material to be elasticideally plastic The roll force model used was a classical slab method with constant friction assumed in the roll gap For the roughing mill reversible 4 high both roll force

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  • U001en Hot Rolled Steel Sheets and Coils

    Dual Phase High Strength Hot Rolled Steel Sheets and Coils with Automobile Formability NSHA540D NSHA590D NSHA590DH NSHA690D NSHA780D They are well suited for drawing because of their low yield ratio They have also excellent fatigue strength Wheel discs High Hole Expanding High Strength Hot Rolled Steel Sheets and Coils with Automobile Formability

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  • Fundamental concept of metal rolling

    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 Assume µµµµ= 0.30 The plane strain flow stress is 140 MPa at entrance and 200 MPa at the exit from the roll gap due to the increasing velocity h h h mm h mm x h x h h h o f f f o o f 40 28

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  • Aluminum Hot Rolling Mill Solutions Primetals Technologies

    aluminum hot rolling mill high quality product maximum yield superior flexibility Primetals Technologies provides a full range of aluminum hot rolling mills for both new and revamp projects With our flexible mill configuration high quality strip can be rolled in capacities between 100 000 to 800 000 tonnes per annum.

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  • Rolling of Metals Process and Principles With Diagram

    Rolling is done both hot and cold It is accomplishes in rolling mills A rolling mill is a complex machine having two or more working rollers supporting rollers roll stands drive motor reducing gear flywheel coupling gear etc Rollers may be plain or grooved depends upon the shape of rolled product.

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  • Alloy surcharge what is it and how to calculate it

    Sep 11 2019  The mill calculates the average value of the relevant alloys for a defined period usually 1 month before the date of the calculation Some mills even calculate the average values on a daily basis to provide daily alloy surcharge prices The average value of nickel and molybdenum follow the stock prices on the London Metal Exchange LME .

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  • Harvard Steel

    The following Table is a direct conversion chart to convert coating weight from g/m 2 to oz/ft 2 on a per side basis Note that although a precise conversion between the metric categories 20G/20G 40G/40G etc and ASTM A653 G and A categories G30 G60 etc cannot be made a 90G/90G coating category metric is approximately equivalent to a G60 coating category ASTM A 653

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  • Difference Between Hot and Cold Rolled Steel Metal

    Sep 11 2014  The differences between hot rolled steel and cold rolled steel relates to the way these metals are processed at the mill and not the product specification or grade Hot rolled steel involves rolling the steel at high temperatures where cold rolled steel is processed further in cold reduction mills where the material is cooled followed by

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  • Cut of OPEX Sophisticated Technical Solutions for Hot

    Feb 19 2018  The yield and economy during hot strip rolling depend on developing high capacity components fulfilling further the increasing customers demands for cost and resource effective production figures The paper gives an overview of the latest developments for high capacity components and tools of the SMS group for conventional hot strip mills and CSP plants The SMS components

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  • Understanding Rolling Process in Long Product Rolling Mill

    Nov 27 2015  If a mill rolls 80 of the calendar year that is 365 x 24 x 0.80 = 7008 hours If the mill rolls 800 000 tons per year it runs at an average production rate of 114.16 tons/hour If the utilization can be improved by 1 the available rolling hours is 365 x

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  • The calculation of rolling forceInnoval Technology

    Yield strength The main factor influencing the rolling force required to reduce the thickness of strip in a rolling mill is the yield strength of the material being rolled The calculation of yield strength depends upon a wide range of factors These are composition previous work done on the material thermal history speed of rolling

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  • PROCESS OF ROLLING MILLS

    Feb 25 2016  If a mill rolls 80 of the calendar year that is 365 x 24 x 0.80 = 7008 hours If the mill rolls 800 000 tons per year it runs at an average production rate of 114.16 tons/hour If the

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  • Rolling metalworking Wikipedia

    These backup rolls are larger and contact the back side of the smaller rolls A four high mill has four rolls two small and two large A cluster mill has more than 4 rolls usually in three tiers These types of mills are commonly used to hot roll wide plates most cold rolling applications and to roll foils.

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  • Understanding Yield Loss in Iron and Steelmaking

    Another way of expressing the yield factor is in terms of tonnes per tonnein this case 100 divided by 95 or 1.053 Typical yield loss values are in hot rolled steel coil production slab to hot rolled coil 3.5 in rebar production for billet to bar 5

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  • RollingAluminum FromtheMine ThroughtheMill

    AdvantagesofAluminum Thepropertiesofaluminummakeitoneofthe mostadvantageousandversatilematerialsin usetoday.Aluminumis Lightweight Aluminumanditsalloys weigh

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  • Brownstock Washing Cost Optimization

    Sep 05 2019  mill For this cost analysis we use saltcake as the makeup chemical Saltcake loss data is taken from figure 3 and the saltcake cost is from table 5 above Below are the low and high kappa saltcake makeup cost curves Figure 8 Saltcake Cost vs Dilution Factor for Low Kappa Pulp Figure 9 Saltcake Cost vs Dilution Factor for High Kappa Pulp

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  • 03 rolling of metalsSlideShare

    Aug 26 2014  Example for hot strip mill process nzsteel.nz Oxidation scale is removed Mill reverses after each pass 5 or 7 and the roll gap is reduced each time Slabs are organised according to rolling schedule Red hot slab 210 mm thick is ready for rolling Slab is reduced to a long strip approx 25 mm thick The strip is coiled and uncoiled to make

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  • Steel Round BarRyerson

    SBQ grades include 1018 1045 1117 1141 1144 1215 12L14 Stressproof and Fatigueproof These are stocked in a variety of sizes and finishes including hot rolled designed to meet various strength machinability and weldabilty requirements MBQ bar is produced to A 36 and most of the sizes are also produced to A and A.

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  • Bar Rolling Mill Rebar Rolling Mill TMT Rebar Rolling Mill

    Bar Rolling Mill Annual Capacity 30 0000 ∼ 50 0000 TPY The billet is 150mm 150mm 8000mm continuous casting billet with a billet weight of 1404 kg Products hot rolled round steel ribbed steel bar Rolling Speed maximum finishing speed of 16 m/s Specification round steel ∅14mm ∅40mm ribbed steel ∅12mm ∅40mm.

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  • PDF Camber and wedge compensation in hot strip rolling

    Figure 1 Structure of a hot strip mill and positi on of the wedge and camber sensors DRAFT 3 The wedge is defined in terms of the differenc e between the operator side driv e side thicknesses

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  • The Hot Rolling ProcessCalifornia Steel

    The Hot Mill rolls slabs weighing up to 30 tons between 30 and 74 Steel slab 8 to 9 inches thick and up to 36 feet long is rolled into strip as thin as 1/16 inches and up to a half mile in length Coils are produced with a 30

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  • Coil Sheet Calculators Steel Warehouse

    Contact Us Steel Warehouse Headquarters 2722 West Tucker Drive South Bend IN 46619 Phone Fax Find More Locations Mail Login

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  • Hot Rolled vs Cold Rolled Steel What is the difference

    Hot rolled steel involves rolling the steel sheets above re crystallization temperatures Whereas cold rolled steel is processed at room temperature in cold reduction mills followed by annealing and tempering Click this link to know various materials used to manufacture sheet metal parts Each of these steels has its advantages limitations

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  • Resolute Forest ProductsPaper Calculation Tools

    Paper Calculation Tools Cost Comparison Roll Measurements Waste Percentage Unit Conversions Average Roll Weight and Linear Footage Basis Weight Equivalents.

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  • Rolling of Metals Process and Principles With Diagram

    Rolling is done both hot and cold It is accomplishes in rolling mills A rolling mill is a complex machine having two or more working rollers supporting rollers roll stands drive motor reducing gear flywheel coupling gear etc Rollers may be plain or grooved depends upon the shape of rolled product.

    Get Price