rolls specifi ion of 4 high reversing roughing mill

  • Advanced Reversing Cold Mills by Primetals Technologies

    Fig.1- Single stand reversing mill . Fig.2- Two-stand reversing mill. Fig.3- Limitations of a 4-high mill on strip flatness . Fig.4- Advantages of 6-high Universal Crown Control Mill (UCM) on strip flatness . Fig.5- Main Feature of HYPER UC-MILL. Fig.6- Comparison of work-roll diameters in a

  • roughing mill rolls

    The workhorse roughing mill has 135” wide rolls for rolling ‘broadside’ (as the first roughing mill is commonly called) to make a slab wider. A 5,000 hp motor drives 42”-diameter work-rolls through 28:1 gears to reduce the slab’s thickness by as much as 2-½”.

  • Used Rolling Mill 4 High for sale. Bliss equipment & more

    500mm Nash 4-Hi Reversing Cold Mill: RM-445. Manufacturer: Nash; Manufacture: Nash New 1976 Fully revamped 2012 (new electric system & drive system) Mill Type: 4-Hi Reversing Cold Rolling Mill Material: High-carbon steel, stainless steel, copper alloys, etc. Strip W.

  • 37" X 84" SMS TWO HIGH REVERSING BLOOMING/ROUGHING MILL

    work roll diameter: 37 : title of specification: 37" x 84" sms two high reversing blooming/roughing mill : manufacturer of equipment: sms : year of manufacture: 1983 : material being rolled: billet & blooms : number of stands: 1 : bloom width: 16 : bloom height: 9 : stand (vertical horizontal) horizontal : roll configuration (2 hi, 3 hi) 2 hi

  • Supply Roughing Mill Rolls,Alloy Nodular Cast Iron Rolls

    Roughing Mill Rolls. Description: Used for roughing mills that processing wires, steel rod, steel bar, which has a good tensile strength and toughness, crack resistance and better anti-breaking performance, good-biting performance. Material: Alloy nodular cast iron (alloy spheroidal graphite cast iron, ductile iron), pearlitic nodular cast iron, ferriticor as per the customer`s requirement.

  • 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.

  • Four-roll Precision Hydraulic Reversing Mill Hani Tech

    Characteristics of Rolling Mill. High rigidity and high precision; 2. Bending; 3. Four pyramid hydraulic collapsible drum; 4. Passline auto adjusting; 5. Hydraulic AGC control: constant tension control; 6. Mileage management of roll; 7. Siemens PLC control, AC and DC drive control.

  • Roughing Mill an overview ScienceDirect Topics

    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 and roll torque were available so the friction coefficient could be evaluated in addition to the flow stress for each pass. The values were close to 0.3 so it was decided to use this for

  • Reversing cold mills (steel) SMS group

    Then our single-stand reversing mill (RCM) is ideal for you because it offers you a very broad product spectrum. It's the best solution for rolling silicon steels and special steel grades. Depending on your product mix, we can provide the RCM in tailored design, as e.g. 4-high, 6-high, 18-HS or 20-high.

  • Aluminum Aluminum Rolling Mills Williamson IR

    Aluminum Rolling Mills Temperature Control in the Hot Rolling Mill. Aluminum sheet and plate products are used for a wide range of applications, including can stock, brazing, automotive and aerospace. These industries demand exacting tolerances and precise mechanical properties, particularly for new, technically challenging high-strength alloys.

  • Hot Strip Mill an overview ScienceDirect Topics

    For the roughing mill (reversible 4-high) both roll force and roll torque were available so the friction coefficient could be evaluated in addition to the flow stress for each pass. The values were close to 0.3 so it was decided to use this for all calculations, also for the finishing, six-stand (4-high), tandem mill.

  • Table of Contents Rolling Mill Bearings

    ion 289 Vertical Edger Rolls for Roughing Section of Finishing Mill Bearings used in this application must have high radial and axial load carrying capacity. Therefore, NSK KV type, four roll tapered roller bearings and in some mills, NSK KH type, two roll tapered roller bearings are used.

  • Achenbach OPTIMILL® Aluminium Foil Rolling Mills

    They are generally designed ad 4-high rolling mills. Universal rolling mills for a wide range of foil products differ from special rolling mills, such as the one for the production of 4.5 µm condenser foils. Within foil rolling lines they are typically designed as roughing mills, intermediate mills and finishing mills.

  • Rolling of Steel in small and medium sized Rolling Mills

    Jun 09, 2017· A two high roll stand has two rolls in it. One which is on top is known as top roll while the other is known as bottom roll. In two high stand mills the rolling is only in one direction. In case of rolling in reverse direction, the mill is to be reversing. In case mill is not reversed then a pullover type two high

  • WO2018086762A1 Method for producing a metal strip in a

    2 cast rolling mill 3 casting machine 4 first oven 5 subway 6 second oven. 7 finishing line 8 cooling section 9 reel or coiler. S1 first pair of scissors. S2 second pair of scissors S3 third pair of scissors. R1, R2 rolling mill of the roughing mill. F1, F2 mill stand of finishing mill F3, F4 mill stand of finishing mill

  • UNIQUE OPPORTUNITY TO PURCHASE A 2.000.000 TON YEAR

    ROLLING MILLS: ROUGHING & FINISHING Type CCD Camera Module Speed & Main Control Processor & HMI Gauging Size W 5,500mm X L 6,500mm X T 20-380mm Line Speed Max. +/- 240mpm Static Accuracy Width, Length +/- 2.0mm Installed Year Supplier 2015 Palmatech, Korea Type High Reversing Mill Rolling Force Max. Ton Work Roll mmL TL Ton Back Up Roll mmL

  • Wire Rod Block Mill Hani Tech

    Wire rod block mill is composed of top crossed 45°high-speed wire-rod mills/finishing mills. The finishing mill group/wire rod mill is located in the high-speed wire-rod workshop. Through several unit racks the continuous micro-tension rolling mill will be transported upstream Ø17 ~Ø21mm of rolling, rolling become Ø5.5 ~ Ø16mm finished wire.

  • (PDF) Camber and wedge compensation in hot strip rolling

    reversing mills like plate mills have been already proposed (see e.g. [Tan87]). of the work rolls in the roughing mill i.e. the difference between the gap at the operator specific roll

  • HOT STRIP MILLS Mechanical Equipment

    Coil weight 4.5 to 40 t Specific coil weight up to 25 kg/mm Entry speed up to 4.0 m/s Coiling speed up to 5.5 m/s Uncoiling speed up to 2.5 m/s FEATURES Mandrel-less coil transfer Maximum coiling speeds Position-controlled bending rolls Position- and pressure-controlled pinch roll leveler OPTIONS Adjustable heat insulating hood Coil furnace

  • HOT ROLLING LONG PRODUCTS Primetals Technologies

    Bar Mill — Solutions to ensure high durability and maximum availability Systems and components are designed for high durability and maximum operation up-time, to meet the specific requirements of productivity, tolerance, surface finish and metallurgical quality. Red Ring rolling stands are suitable for use in a wide range of situations.

  • Rolling Process

    Nov 16, 2017· Hot-rolling •The first hot-working operation for most steel products is done on the primary roughing mill •These mills are normally two-high reversing mills with 0.6-1.4 m diameter rolls (designated by size). •The objective is to breakdown the cast ingot into blooms or slabs for subsequent finishing into bars, plate or sheet. Plate rolling

  • Analysis of roll stack deflection in a hot strip mill

    At four-high reversing roughing stand, the heated slabs are reduced to a thickness of 30 mm with seven passes. Finally, the 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 rolls are used for the

  • FAG Rolling Bearings in Rolling Mills

    The work rolls in four-high strip mills and the rolls in two-high fine-section and wire mills are predominantly fitted with angular contact ball bearings as axial bearings (Figure 10). The chock arranged on the drive end is not axially located in the roll stand, but is guided on the roll neck by the axial bearing. Since the guidance forces are

  • Steel Hot strip Britannica

    Steel Steel Hot strip: The rolling of hot strip begins with a slab, which is inspected and, if necessary, surface cleaned either manually or by scarfing machines with oxyacetylene torches. The slabs are then pushed, or walked on their broadside, through gas-fired furnaces that have a hearth dimension of about 13 metres by 30 metres. In a pusher-type furnace, the slabs slide on water-cooled

  • Patents Assigned to Tippins Machinery Company, Inc

    Abstract: A process of rolling steel in a reversing mill by passing the steel back and forth through the mill for a selected number of passes to achieve the desired thickness and on at least two early passes, each in a different direction, tapering the ends of the steel during taper passes by adjusting the roll gap, the roll gap adjustment (.DELTA.H) being a function (F(.DELTA.F.sub.m)) of the

  • Steel Hot strip Britannica

    Steel Steel Hot strip: The rolling of hot strip begins with a slab, which is inspected and, if necessary, surface cleaned either manually or by scarfing machines with oxyacetylene torches. The slabs are then pushed, or walked on their broadside, through gas-fired furnaces that have a hearth dimension of about 13 metres by 30 metres. In a pusher-type furnace, the slabs slide on water-cooled

  • (PDF) Camber and wedge compensation in hot strip rolling

    reversing mills like plate mills have been already proposed (see e.g. [Tan87]). of the work rolls in the roughing mill i.e. the difference between the gap at the operator specific roll

  • The first coil: 1700 hot strip mill has been commissioned

    The coilbox installed after the roughing mill provides for intermediate coiling of long workpieces during the production of heavy coils. Due to the revamp of 1700 HSM, Ilyich Steel expanded its production capabilities, where the 250 mm slabs produced by new Continuous Caster No. 4 will be rolled to the specific size range, and the coil weight

  • Rolling Process

    Nov 16, 2017· Hot-rolling •The first hot-working operation for most steel products is done on the primary roughing mill •These mills are normally two-high reversing mills with 0.6-1.4 m diameter rolls (designated by size). •The objective is to breakdown the cast ingot into blooms or slabs for subsequent finishing into bars, plate or sheet. Plate rolling

  • Reheat Furnace Hot Rolling Steel AMETEK Land

    The lens tip provides fields of view up to 90 horizontal degrees and offers a high resolution (656 x 484 pixels) thermal image. Temperatures can be measured anywhere within the scene. Unlike simpler devices the NIR-B imager design provides accurate temperature measurements anywhere from the centre of the thermal image all the way out to the

  • Specialty Metals Production

    • Reversing mills • Sendzimir mill “Z” mill Small diameter work rolls surrounded by larger back-up rolls Coiling stands provide tension Large reductions possible on strong materials Active shape and gauge control Material can be produced as wide as 60” and as thin as 0.0007” (18 microns)

  • FAG Rolling Bearings in Rolling Mills

    The work rolls in four-high strip mills and the rolls in two-high fine-section and wire mills are predominantly fitted with angular contact ball bearings as axial bearings (Figure 10). The chock arranged on the drive end is not axially located in the roll stand, but is guided on the roll neck by the axial bearing. Since the guidance forces are

  • (PDF) Wedge and Camber Control

    reducing wedge in a roughing mill stand without generatin g camber. Thus,camber can be decoupled from wedge and hence roll tilting in the roughing m ill stand can be used to control the wedge in

  • CNC End Mill Guide CNCCookbook: Be A Better CNC'er

    High Helixes can help pull the chips out in materials like aluminum much better: Roughing Endmills (aka “Corncob” roughers) Roughing endmills like the one pictured have little serrations in the teeth. These serrations do a couple of useful things. First, they break up the chips making it easier to clear them out of the hole you’re cutting in.

  • CHINA STEEL csc.tw

    The plate mill is mainly equipped with the walking-beam continuous reheating furnaces, high-pressure descaling box, 4-high reversing rolling mill with hydraulic AGC system, γ-ray thickness gage, 24m-long on- line accelerated cooling system, 3600-tonleveler, rolling-disc type cooling bed, on-line automatic ultrasonic testing system, and normalizing furnace.1 million tons of plates are produced

  • Semi-continuous hot mill line, Ma‘aden, Saudi Arabia SMS

    This hot rolling line is a semi-continuous 1 + 4 mill with a capacity of 650,000 tpy. It includes a four-high reversing roughing stand that applies a maximum rolling force of 40 MN and rolls incoming ingots with a thickness of up to 635 mm. The rolls in the rougher are driven by a twin drive featuring a nominal motor rating of 2 x 4,500 kW.

  • How to use a Milling Machine Instructions

    If a plentiful supply of cutting oil is applied to the milling cutter and the workpiece, speeds can be increased 50 to 100 percent. For roughing cuts, a moderate speed and coarse feed often give best results; for finishing cuts, the best practice is to reverse these conditions, using a

  • USER’S GUIDE

    steels, High strength low alloy steels etc., which are extensively used in industrial sectors. Hot rolling mill complex is equipped with walking beam re-heating furnace, primary descaler, 4-hi reversing roughing mill, 4-high reversing steckel mill, down coiler, laminar cooling and roll grinding machines, procured from world renowned suppliers.