high technologies in the field of - eztm.ru and shell. a screw rolling mill produces shells of a...

High technologies in the field of:

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DELIVERY PROGRAM

MEtALLuRGIcAL InDustRY SEAMLESS TUBE PLANTS (hot)

WELDED TUBE PLANTS

SEAMLESS TUBE PLANTS (cold)

SECTION AND WIRE PLANTS

PART ROLLING MILLS:

• ballrollingmills

• axlerollingmills

• ringrollingmills

• tubularbilletrollingmills

• drillrodrollingmills

• gearrollinglines

HYDRODYNAMIC AND HYDROSTATIC OIL FILM BEARINGS

COLD AND HOT ROLLS

BLAST FURNACE VALVES INCLUDING COLD- AND HOT-BLAST VALVES

MInInG InDustRY APRON FEEDERS

JAW CRUSHERS

CRUSHERS FOR PROCESSING OF TITANIUM SPONGE

OIL AnD GAs InDustRY QUICKCHANGEABLE CONSTRICTING DEVICES FOR GAS

CONSUMPTION MEASUREMENT ON GAS MAINS

cEMEnt InDustRY ROTARY CEMENT KILNS FOR BURNING OF CEMENT CLINKER, LIME,

MAGNESITE AND OTHER MATERIALS

ROTARY KILN SHELLS

FLOATING AND WELDED KILN TYRES

RING GEARS

SUPPORT ROLLERS AND BLOCKS

ROTARY KILNS DRIVE GEARBOXES

GRATE COOLERS

GRINDING MILLS

OthER EquIPMEnt ROTARY HOT SAWS

COOLING CONVEYER RACKS

GROUND-TYPE CHARGING MACHINES

TUBE BUNDLING EQUIPMENT

GEARBOXES

METAL STRUCTURES

GEAR COUPLINGS

SPINDLES

HYDRAULIC CYLINDERS

PNEUMATIC CYLINDERS

CASTINGS

FORGINGS

SPARE PARTS


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IntRODuctIOn

EZTM,JSCisоnеofthelargestenterprisesoftheRussian

heavy industry since 1942.The compаny specializes in

productionofmetallurgicalequipment.

TodayEZTM,JSCisаmodernenterprisewhichdesigns,

producesandsuppliescomplexequipmentfortuberolling

andtubeweldingplants,equipmentfortubefinishingand

coating, cold rolling tube mills, small section, medium

sectionandwiremills,partandballrollingmillsandother

special mills, oil film bearings, steel rolls for cold and

hot rolling mills and spare parts for the manufactured

equipment.

EquipmentproducedbуEZTM,JSCisunique.Practically

everymachine,millогthewholeplantismade(designed

and produced) according to individual Customer

specificationsanddrawings.Duetolong-termworkinthis

field,theenterprisehasgainedgreatexperienceandhas

itsownschoolofproductionoftubeequipment.

Могеthan70%oftubesforchemical,oilandgasindustry,

heatpower industry,civilengineeringandotherRussian

and CIS industries aremanufactured оnmills made bу

EZTM. Our products are of high quality and meet the

requirementsofthecurrentstandards.Technicalleveland

construction originality are protected bу certificates and

patents (2372 Russian certificates and patents protect

equipmentproducedbуEZTM,JSC).

EZTM, JSC has а complete cycle of production –

metallurgical, welding, mесhаniсаl-аssеmbIing and

auxiliary.Thereаrеdesignandtechnologicaldepartments,

the research complex and the experimental base in the

structureoftheenterprise.

EZTM, JSC has delivered hundreds of machines and

plantswhichareoperatingatmetallurgicalworksofRussia,

enterprises of the CIS and in 40 countries of Europe,

Asia, Africa and America. There are enterprises from

Germany, India, Japan andUSAamongour customers.

Bothuniqueproductmixandconvenientwork,individual

approach,efficientргоblеmsolvingareveryattractivefor

ourcustomers.

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tuBE ROLLInG PLAnts

EZTM, JSC DESIGNS AND DELIVERS TUBE ROLLING

PLANTS (TRP) OF ТНЕ FOLLOWING TYPES:

1. tuberollingplantswithcontinuousmill;

2. tuberollingplantswithplugmill;

3. tuberollingplantswiththree-highelongator.

tuBE ROLLInG PLAnts WIth cOntInuOus MILL

tube rolling plants with continuous mill are intended

for mass production of seamless hot-rolled tubes of

general purpose, tubes for oil and gas industry (pump-

compressors, casing, drilling, geological prospecting, oil

pipelining),boilerandetc.fromcarbonsteelgrades.

Theseplantsarethemosteffectiveandperfect.Theyare

featuredbуhighoutputandallowtoproducethin-walled

PARAMEtERs OF tuBEs ROLLED In PLAnts WIth cOntInuOus MILL

Rolled product parameters Mills

tRP 80 tRP 100 tRP 170 tRP 350

Initial billet

Diameter,mm 120 150 220 320

Length,m,mах 3 4 4 4

Weight,t,mах 0,3 0,5 1,2 2

Finished tube

Diameter,mm 20...89 30...108 60...168 146...325

Wallthickness,mm 2,5...6 3...8 3,5...12 6...25

Length,m,mах 12 12 12 12

tubesofsmalldiameteraswellastorollathigherspeeds

andwithminimalauxiliaryoperations.

Rolled tubes are featured bу high quality. Рrоduction

processlookslikeаcontinuousflowfrombilletheatingup

totubefinishing.AIIoperationsarecompletelymechanized

andautomated.


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tuBE ROLLInG PLAnts WIth PLuG MILL

tube rolling plants with plug mill are intended for

production of hot-rolled seamless tubes of different

diameters, wall thickness (both thin-walled and thick-

walled),steelgradesandalloys (includingstainlessand

hard-deforming).

Finished tubes are used in civil engineering, machine

building,oilandchemical industry, inspecialproduction.

Tube plants with plugmill allow to transfer rapidly from

оnе kind of tubes to another which predetermines their

efficiency. The plants are completely mechanized and

maximumautomated.

PARAMEtERs OF tuBEs ROLLED In PLAnts WIth PLuG MILL

Parameters Mills

tRP 140 tRP250 tRP400

Initial billet

Diameter,mm 105-150 130-240 180-330

Length,m,mах 4 4 4

Weight,t,mах 0,55 1,1 3

Finished tube

Diameter,mm 60-146 76-250 121-406

Wallthickness,mm 3,25-18 4-35 5-65

Length,m,mах 12 12 16

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tuBE ROLLInG PLAnts WIth thREE-hIGh ELOnGAtOR

tuberollingplantswiththree-highelongatorareintended

for production of hot-rolled seamless tubes with high

dimensionalaccuracy.

PARAMEtERs OF tuBEs ROLLED In PLAnts WIth PLuG MILL

Parameters Mills

tRP 200

Initial billet

Diameter,mm 90-250

Length,m,mах 4

Weight,t,mах 1,0

Finished tube

Diameter,mm 50-200

Wallthickness,mm 5-55

Length,m,mах 13


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sPEcIAL-PuRPOsED MInI tuBE ROLLInG PLAnt (tRP) 30-80

Mini TRP 30-80 is intended to manufacture hot-rolled

seamless tubes and hollow shells for various fields of

machine-building industry (wrist pins, axles, bushings,

centerpins,gearwheelpinionblanks,bearingrings,parts

forhydraulicandpneumaticcylinders)withawiderange

ofgradesandprofileswithhighqualityindexes.

APPLIED tEchnOLOGYThe main forming operation is a screw rolling. It is

performed on piercing, rolling-off and reduction-sizing

two-highscrewrollingmills.

Thepiercingmillrealizestheoriginalschemeofpiercing

includingrigidandaccuratecenteringofthestoprodalong

its lengthby thesystemof centeringunitsandmovable

quillandshell.

Ascrewrollingmillproducesshellsofasmallerdiameter

with high geometrical accuracy due to its deformation

modesandprocessingtools.

Rollingoffandreduction-sizingmillsrealizetheschemeof

shellreductionbymeansofscrewrollingwhichincludes

shellwallrollingoffonthemandrelwithwallreductionof

1.5…5.0mmandouterdiameterreductionupto30%on

thetwo-highstandfollowedbythepluglessreductionwith

outerdiameterreducingupto18%inthefollowingscrew

rollingtwo-highstand.

Theofferedtechnologyofscrewrollingiswidelyusedin

theproductionofwiderangeofrolledproducts including

thick-walled tubes which comprise drilling equipment

blankparts.

Thistechnologyisappliedinthespecial-purposedrolling

machine “450-3”of theRedOctoberMetallurgicalPlant,

Volgograd,Russia.

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sPEcIAL-PuRPOsED MInI tuBE ROLLInG PLAnt (tRP) 30-80• towidengradeandprofilerangeofproducts;

• toimprovegeometricalparametersqualityofthedrilling

equipmentblankpartsuptotheequalorhigher level

thantheoneoftheinternationalstandards;

• to exclude time-consuming and low-production

operations, solid blanks boring, composite billets

preparation, lead-in cuts of rod ends and mandrel

extraction from the drilling equipment production

technology;

• to perform drill equipment manufacturing on a fully

automaticandmechanizedmachine;

• toabatemetalflowcoefficientfrom2.162to1.702.

nEW tEchnOLOGIcAL PROcEss MAstERInG In cOMPARIsOn WIth thE EXIstInG OnE ALLOWs

Initial billet

Diameter,mm 50…100

Length,mm 1400…1800

Material:varioussteelgradesincludinghigh-alloyedones

Hollow shells and tubes

Outerdiameter,mm 25.0…70.0

Borediameter,mm 7.0…32.0

Wallthickness,mm 6.0…20.0

Length,mm upto8000

Permissible deviations of tubes from the nominal size, %

Diameter ±0.5

Wallthickness ±5.0

Mainequipmentarea,sq.m 500

Mainequipmentweight,t 350

Capacity,th.tonnesperannum

(dependentontherange)15…40

tEchnOLOGIcAL chARActERIstIcs


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MInI s&E tuBE PLAnt

the new mini tube rolling plant designed and

manufacturedbyEZTM,JSCisamobileandefficientplant

intendedforproductionofhigh-qualitytubesandbilletsof

variousdimensions fromdifferentcarbonandalloysteel

gradesaswellasalloysincludingtitaniumonebysimple

and advantageous method. Investment expenditures

areconsiderably low.Theplantoutput is from30000to

100000tonperyearaccordingtotubesdimensionsand

workschedule.

The plant covers requirements of atomic energy,

petrochemical,miningandotherindustries,militarysector.

Itcanrolltubesusedasbilletsforcoldrollinganddrawing

mills, hollow axles for railway vehicle, muff joints of oil

industry tubular goods, hydraulic cylinder parts, bearing

rings,metalworksitemsandetc.

Themini tube rolling plant is a basemodel and canbe

modifiedinaccordancewithcustomer’srequirements.For

example, the plant can be equippedwith a sizing block

allowingtorollprecisiontubes.Besides,thestraightening-

sizingmillcanbemodifiedforproductionofbilletsintended

forpiercingfromavailablestockoflargersizes.

Theproductionprocessisbasedonpiercingofthebillet

followed by rolling-off of a shell in cone-type rolls of a

2-rollscrew-rollingmillequippedwithguards.Cone-type

rollsdriveisinstalledintheenteringsideofthemill(cup-

shapedscheme).

Number of techniques proved by long experience and

design features of suchmills ensure high quality of the

rolledshells.Suchhighqualityisachievedby:cutting-to-

lengthof thebilletswithaccuratecenteringof their front

ends in cold state, uniform heating of the billets along

theircircumference,accurateandrigidadjustmentofrolls,

Theimplementedtechnologyanddesignoftheplantallow

tomanufactureamini-millwiththefollowingadvantages:

• market,region,branch,companyneedssatisfaction;

• highefficiencyevenwhenrollingsmallbatches;

• widerangeofsizesandmaterialgrades;

• highqualityofproduct;

• completenessandlowenergyintensity;

guardsanda rodwithmandrel in thedeformationzone,

accurateadjustmentofmillsettingsandcalibrationofthe

deformingdevice.

Theshorttaperedmandrel involvedinrolling-offprocess

allows to increasecontrollabilitybychanging itsposition

inthedeformationzone.Thatfeatureaffectsonthetube

shapemoreefficientlythanothermethods.

It allows to implement both processes in the samemill

uponsingleheating.Thepiercedshellistransferredtothe

entering side with simultaneous replacement of the rod

withmandrelfrompiercingtorolling-offone.

PRODUCTION PROCESS AND ITS PECULIARITIES

ADVANTAGES• relativelylowcostschargedtocapitalinvestmentand

operatingexpenses;

• goodtoollife;

• highleveloftechnologicalprocessautomation;

• easyservicingandmaintainability;

• mobility:shortchangeover;

• upgradabilityandproductdifferentiation.

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TECHNOLOGICAL PARAMETERS

INITIAL BILLET:

Diameter,mm 80…270

Length,mm 1500…3000

Material:steelofdifferentgrades,includinghighalloysteels

HOLLOWS AND TUBES:

Outerdiameter,mm 70…270

Wallthickness,mm 6,0…90,0

Length,mm upto9000

PERMITTEDDEVIATIONOFTUBESFROMNOMINALDIMENSIONS,%:

Diameter ±0.5

Wallthickness ±5.0

Maindrivespower,kW

Piercingmill 2x1250

Mainequipmentarea,sq.m 2000

Mainequipmentweight,t 450

Output,ths.t/year(accordingtotuberange) 30…100

PLANT LAYOUT

1.Furnacechargearea

2.Walkingbeamfurnace

3.Universalpiercing/reelingmill

4.Rodchangingmechanism

5.Straightening-sizingmill

6.Coolingbed

7.Sprayer


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PLAnts FOR LARGE DIAMEtER tuBE PRODuctIOn

EZTM,JSCmanufacturesplantsforproductionoflarge

diameterweldedtubes(LDWP).Theplantsагеintended

forproductionof tubes from530 to1620mmOD.Such

equipmentsuccessfullyoperatesatRussianand foreign

metallurgicalenterprises.Tubesmadebуtheseplantsаге

usedformaingasandoilpipelinesconstructionpurpose.

Each plant is а massive complex consisting of the

mill line itself aswell as tube finishing facilities such as

surfacecleaning,nоndestructive inspection,expanding,

hydrotesting, mechanical treatment and preparation for

shipment.

Bothsheetandcoiledsteelstockcanbеusedforwelded

tubeproduction.

High quality of tubes is provided bу gas shielded and

submerged агc welding (SAW) which is carried out in

several stageswith 2-4 electrodes. The process begins

withа technologicalweld followedbуoutsideand inside

workingwelds.

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TECHNICAL DATA

DATA LDWP 1020 LDWP 1220 LDWP1620 LDWP1420

Tubediameter,mm 530-1020 1020-1220 1220-1620 508-1420 1020-1420

Wallthickness,mm 8-32 8-22 11,5-24 7-48,0 10-30

Length,m 10,0-11,6 10,5-12 11,1-11,8 10,0-12,2 10,5-12,2

Startingstock measuredsheet measuredsheet measuredsheet measuredsheet

Formingmethodpress,3

operations

press,3

operationsroll

press,2

operations

press,2or3

operations

Formedblankshape cylinder semi-cyl. semi-cyl. cylinder semi-cylinder

WeldingmethodgasshieldedSAW

3-layer,1-2-3-arc

gasshieldedSAW

2-3-layer,1-2-3-arc

gasshieldedSAW

3-layer,1-2-3-arc

gasshieldedSAW3-layer,

1-4-5-arc

Weldingspeed,m/min 0,5-4,5 1,5-3,5 1,5-3,5 1,0-7,0

Numberofwelding

lines6-9-6 1-5-4 2-14-10 2-4-3 2-4-3

Workingpressurein

pipelines,MPa5,5-12,5 5,5-10,0 5,5-10,0 5,5-15,0 5,5-10,0

Output,ths.t/y 1000 800 1500 600 400


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tubeelectricweldingplantTEWP-1420 is intended for

productionofelectricweldedtubesandpipesupto1420

mm OD for main gas and oil pipelines and pumping-

compressorstationsconstructionpurpose.

Tubesof increasedreliabilityaremade fromsteelgrade

uptoX80Cwithonelongitudinalseam.

Thisuniqueplantisintendedforproductionofbothsingle

anddouble-seamtubesandpipesupto1420mmOD.

TEWP-1420 CONSISTS OF THE FOLLOWING

EQUIPMENT:

Plate preparation and billet forming line:

Technological strips welding machine is intended for

shielded gas arc welding of technological strips in the

cornersofplatesfortheirextension.

Plate-edgemillingmachineisintendedformillingofplate

edgesforfuturelongitudinalwelding.

Flanger is intendedforsimultaneous lengthwiseflanging

ofplateedges.

Stepwise shaping press is intended for shaping of tube

billetsbysimultaneousmulti-stagebending.

Hydraulic scalebreacker is intended for simultaneous

breakingofthescaleformedduringtheshapingfrominner

andoutertubesurfaces.

Tube welding line:

Tack welding mill is intended for tack welding of billet

edgeswithpossiblerootopeningbyshieldedgassingle

arcwelder.

Inner longitudinal seam welding mill is intended for

submerged3-4arcweldingofinsideworkingseam.

Outer longitudinal seam welding mill is intended for

submerged4-5arcweldingofouterworkingseam.

Inspection, repair and plasma cutting line:

Weldedseamsultrasonictestingdevice(UTD)isintended

for automated ultrasonic lengthwise testing of welded

seam.Incaseofdefectspaintsprayersmarkthemontube

surfaces.

X-ray television testing device (XTTD) is intended for

interpretation of automated ultrasonic testing results.

Areaswithconfirmeddefectsaremarkedaswell.

Inspection and repair device is intended for visual

examinationand repairof innerandouter tubesurfaces

markedbyUTDandXTTD.

Plasma cutting device is intended for cutting off of

technologicalstripsanddefectedtubeends.

Expanding and hydrotesting line:

Hydromechanicalexpanderisintendedfortubesizing.

Hydrostatictestingpressisintendedfortubeshydrostatic

testing.

Secondary testing line:

Seams ultrasonic testing device (UTD) is intended for

seamsautomatedultrasonictesting.

Tubeendultrasonictestingdeviceisintendedfortesting

oftubeendmetal.

SeamendX-raytelevisiontestingdevice(XTTD)isintended

for testingofseamends (400mm length). It ispossible

to use this devise for seam ends x-ray testing as well.

Magnetic powder inspection device is intended for

magneticpowderinspectionoftubeendmetal.

tuBE ELEctRIc WELDInG PLAnt FOR PRODuctIOn OF tuBEs uP tO 1420 MM OD tEWP-1420

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Tube end finishing and final acceptance line:

Tube end finishing machine is intended for tube ends

finishing.

Tubeweighingmachineisintendedforweighingoffinished

tubesbyelectronicbalance.

Tube final acceptance device is intended for visual

examination, marking and final acceptance of finished

tubes.

Double-seam tube assembling-welding mill is intended

for assembling of two semi-cylinders in assembly unit,

feedingthemintoweldingstandandtackweldingoftheir

edgeswithpossiblerootopening.Thesecondtackweldis

madeafterbilletturninthesecondweldingstand.

Electric drive and automation:

Hydraulic, pneumatic and electromechanical drives are

used.

TEWP control system combined with electric drives

comprises automatic process control system.

Programmablelogiccontrollerswithremotecontrolstation

areused forallcontrolsystems.To fixmechanismsand

tubesposition it ispossible tousenon-contact inductive

opticalmagnetostrictivetransducers.Theplantisoperated

from closed command stations and open work stations

mountedinshops.Commandstationsareequippedwith

operator’spanelsanddifferentcontrolfacilities.

Automatic process control system is equipped with

software.

PLANT FOR PRODUCTION

OF SINGLE-SEAM TUBES AND PIPES

TECHNICAL DATA

Tubediameter,mm

metricsystem 530-1420

inchsystem 508-1422


Length,m 9-12,2

Pipeline working pressure,

MPa5,4-11,8upto14,7

Output,ths.t/y 600

PLANT FOR PRODUCTION

OF DOUBLE-SEAM TUBES AND PIPES

TECHNICAL DATA

Tubediameter,mm

metricsystem 1020-1420

inchsystem 1067-1422


Length,m 10,5-12,2

Pipeline working pressure,

MPa5,4-9,8

Output,ths.t/y 400


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cOntInuOus ELEctRIc WELDInG PLAnts FOR sMALL AnD MEDIuM DIAMEtER tuBE PRODuctIOn

EZTM, JSChas designed and deliveredmore than 70

continuouselectricweldingplants(CEWP)whichoperate

inRussia,theCISandabroad(Germany,Brazil,AREand

etc.)withequalsuccess.

Toproducetubesfromdifferentsteelsandalloysaswellas

aluminum,titaniumandcopperthematerialissubjectedto

high-frequencyweldingwithinductiveandcontactcurrent

supplyandtoinertgasarcwelding.

Weldedtubesproducedintheseplantscanbesuccessfully

substituted for the more expensive seamless tubes in

somebranchesofindustry.

Theplantsconsistofthefollowingequipment:

1. strippreparationlines;

2. forming-weldinglines;

3. tubesizingandshapinglines;

4. cuttingandpackingline;

5. tubefinishingline.

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TECHNICAL DATA

PARAMETERS CEWP

10-40

CEWP

20-76

AAW

20-76

CEWP

51-114

CEWP

73-220

CEWP

102-220

CEWP

203-530

Tubeouterdiameter,mm 10-40 20-76 20-76 51-114 89-219 102-219 203-530

Wallthickness,mm 0,5-2,5 1-4,5 1-4 1-5,5 1,5-6 1,5-6 3,5-10

Weldingspeed,m/min 30-90 40-90 0,8-1,5 40-90 10-50 45-80 45-60

Output,ths.t/y 40 upto120 1,5 170 upto180 300 650

Theequipmentoftheplantscanbearrangedindifferent

waysdependingontheCustomer’sneed.

AttheCustomer’srequestitispossibletoequiptheplants

withdevicesforproductionofshapedtubes.

Theplantcanincludeastretch-reducingmillwhichextends

itsdesignflexibility.

All tube-forming and tube-welding processes are fully

automated.


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cOntInuOus tuBE ELEctRIc WELDInG PLAnt FOR PRODuctIOn OF tuBEs 102-220 MM OD (cEWP-102-220)

tubeelectricweldingplantCEWP-102-220 is intended

forproductionofelectricweldedoilandgas-supplypipes

102-220mmOD.

CEWP-102-220 CONSISTS OF THE

FOLLOWING EQUIPMENT:

1. Strip preparation line:

Magnet-typeuncoiler is intendedfor feedingofcoils into

uncoiler,stripingitsfrontendandthreadingitintopulling

rolls.

Plateflatteningmachineisintendedforflattingofuncoiled

plate.

Butt welding machine is intended for butt welding of a

previouscoilbottomendwithafrontendofthefollowing

one.

Weldingmethodsareelectricresistance,fusionorshielded

gasarcwelding.

Strip receiver is intended for storingof stripduringcoils

buttwelding.

Stripreceiverisspiralwithhorizontaltable.

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2. Tube forming and welding line:

Formingmillisintendedforformingofastripintoaround

billet. The mill consists of horizontal drive stands and

verticalnon-drivestands.

Tubewelderisintendedfortubesinductionwelding.The

welder is 2-high one. Flash formed during the welding

processisbrokenbydeseamingmachine.

Seamcoolingmachine is intended for coolingof seams

withair-and-watermixture.

Sizingmillisintendedfortubefinalsizing.Themillconsists

ofhorizontaldrivestandsandverticalnon-drivestands.

Tubecuttingflyingmachineisintendedforcuttingtolength

ofcontinuousandmovingtube.

3. Tube finishing line:

Tube straightener with cross rolls is intended for tube

straightening.

Tubebuttingsawisintendedformachiningoftubeends

forfuturewelding.

Hydraulicpressisintendedfortubehydraulictesting.

TECHNICAL DATA

Tubeouterdiameter,mm 102-220


Length,m 10-12

Weldingspeed,m/min 40-70

High-frequencygeneratorcapacity,kW 600

Currentfrequency,kHz 440

Totalelectricdrivescapacity,kW 2220

Output,ths.t/y 90-300

ELECTRIC DRIVE AND AUTOMATION

Hydraulic, pneumatic and electromechanical drives are

used.ItispossibletousebothDCandACelectromechanical

drives.

Electric drivesmaintaining constant speeds or positions

are equipped with pulse rotary velocity transducers

(encoders).

Encoders are used as digital speed transducers. To fix

mechanismsandtubespositionitispossibletousenon-

contactinductiveopticalmagnetostrictivetransducers.

TEWP control system combined with electric drives

comprisesautomaticprocesscontrolsystem.


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cOLD ROLLInG tuBE MILLs

coldrollingtubemillsaredesignedtoproduceseamless

coldrolledhigh-accuracytubesfromdifferentsteelgrades

andtitanium,copperandaluminum-basedalloys.

Tubesrolledbysuchmethodhavehigh-precisionsizesof

wall thickness,outerandinnerdiameters,high-qualityof

outerandinnersurfacesandmetalfavorablestructure.

Such tubes are mainly used in atomic and energetic

industries,incosmicandairtechniques,shipbuilding,oil-

chemistry and chemistry industries and other sectors of

machinerybuilding.

EZTM,JSCproducesmillsofmorethan50modifications

to manufacture tubes from 4 to 450 mm in diameter

considering use of optimal technology and production

conditionsattheCustomersite:

• Mills can have side or butt end load of billet with

continuousworkingschemeorwithstopsforreloading.

• Mills can be producedwith different stand type:with

forced movable housing, with movable cassette and

forcedhousingwithsupportskid,withmovablecassette

andsupportrollsandstationaryforcedhousing.Stands

can be equippedwith different type of passes - ring

type, U-shaped, semi-disks or rollers with constant

grooveprofile.

• Millsarepresentedinonestrandortwostranddesign.

• Billetlengthisfrom1,5to15meters.

• Millsaresuppliedwithoutlettablestoreceivetubesin

straightlengthsaftertheircuttinginthemilltrainorwith

coilingoffinishedtubesafterrolling.

Useofnewrollingscheduleswithapplicationofnewpower

machines provides the manufacture of high-precision

cold-deformed tubes which correspond to international

standards.

Useofdevicesforbalancingofdynamicandstaticloadsin

thedisplacementdriveoftheworkingstandprovideshigh

speed of mills and minimum power expenditures when

operatingtheequipment.

New arrangement of machines provides minimum

foundation depth of the equipment which considerably

reduces construction and erection costs. Increased

monthlyandannualaverageoutputisachievedasaresult

of time reduction for auxiliaryworks and the equipment

repair.

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COLD ROLLING TUBE MILLS (CRTM) SPECIFICATIONS

PARAMETERS

Mill Billet

diameter,mm

Finishedtube

diameter,mm

Finishedtubewall

thickness,mm

Stand

stroke,mm

#ofstand

strokepermin

Capacity,

m/h

Power,

kW

CRTM 20 20 6-15 0,3-2 300 260 50-200 50

CRTM 40 40 8-25 0,3-3 500 220 30-400 80

CRTM 60 60 16-40 0,4-5 700 180 30-400 150

CRTM 80 80 20-60 0,6-10 800 160 30-300 200

CRTM 110 110 40-90 1-12 1080 120 30-250 300

CRTM 150 150 80-120 1,5-15 1200 80 30-200 450

CRTM 200 200 100-180 2-20 1400 70 30-200 800

CRTM 280 280 140-260 3-30 1480 60 30-150 1000

CRTM 500 500 180-450 3-30 1300 40 20-100 1300

CRTM2-40 40 8-25 0,5-3 600 160 200-1200 100

CRTM2-70 70 20-55 0,8-4 800 120 150-1000 210

CRTM2-110 110 40-90 2-6 1080 90 150-800 400

Whenorderingtheequipmentpleaseindicatethefollowing:

- material and dimensions of a billet; finished tube

dimensions;

- billetdimensionalaccuracyandrequiredaccuracyofa

finishedtube;

- requiredcapacity.


21

A unique cold rollingmill CRTM350-8 is designed for

cold rolling of seamless tubeswith outer diameter from

140mm to 325mm from carbon, alloyed and stainless

steelwithultimatestrengthininitialstateupto1000MPa.

Such tubes have highly precise sizes, wall thickness,

outerandinnerdiameters,highqualityofouterandinner

surfacesandfavorablemetalstructure.

The tubes are typically used in space and aircraft

engineering, shipbuilding, petrochemical and chemical

industries,andothersectorsofmachinerybuilding.

PRODUCTION PROCESS

CRTM350-8millisdesignedforfrontchargingofabillet

withitsfeedingtothedeformationzonebypressingitto

theend,withfrontdrivelocationofleft(orright)design.

Rollingprocessiscarriedoutinreciprocatingdieswitha

variableprofileonacone-shapedorcurvedmandrelfixed

inaxialdirection.Whenrollsapproachtheirendpositions

atubeisreleasedfromthegrooves.Feedingandturning

ofthetubeisperformedinendrearandfrontpositionsof

thestand.

Theequipmentconsistsofasetofmachinesthatcarryout

themajoroperationsinthecourseofthetubeproduction:

• standdrive;

• three-rollworkingstand;

• leverage;

• feedareaequipment;

• intermediatechuck;

• frontchuck;

• chargingtable;

• finishedtubesreceivingtable;

• oilandgreaselubricationsystems;

• safetydevices;

• hydraulicsystem;

• lubricationsystem;

• electricalequipment.

cOLD ROLLInG tuBE MILL 350-8

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ADVANTAGES

1. Highaccuracyandqualityofrolledtubes.

2. Wide technological capacities are double feed/turn

rolling, feed and turn value alteration at each end

positionofthestandcanbevariedatthewholerange

andcanbealteredfromthecontroldesk

3. Intermittently rotated transmission mechanisms are

excludedfromtheequipment.Itincreasesmillreliability

andoperationlife.

4. Rollingwithmaxcoincidentofeffectivestanddiameter

with effective diameter of rolling schedule due to

adjustmentofthedrivesystem.

5. Highreliabilityandservicelifeofthemillmechanisms

duetouseoftime-proveddesign.

TECHNICAL SPECIFICATIONS

№ ITEM UM INDEX

1 Maxshellouterdiameterwithplustolerance,notmore mm 360

2 Shellwallthickness mm 5-40

3 Shelllength m 2,5-8

4 Toleranceforbilletouterdiameter % ±1.0

5 Toleranceforbilletwallthickness,notmore % ±12.5

6 Billetcamber mm/m 2

7 Finishedtubeouterdiameter mm 140-325

8 Finishedtubewallthickness mm 3-32

9 Finishedtubemaximumlength m 25

10 FinishedtubesurfacecleanlinessRa μm 0,8

11 Toleranceforfinishedtubewallthickness,notmore % ±6,0

12 Toleranceforfinishedtubeouterdiameter

mm ±0.7

% ±0,2-0,3

13

Workstandstrokelength

mm

1600-1700

Workcartridgestrokelength 1100

14 Rollinggaugeworkingzone mm 950

15 Standmaximumspeed,notmore dbl.stroke/min 45

15.1 Standrollingspeed dbl.stroke/min 30

16 Feedvalueperpulse mm 0-20

17 Feedsquantitypercycle 2

18 Turningangle,degree ° 23-35

19 Turnsquantitypercycle 2


23

themillisintendedforproductionofhigh-accuracytubes

made fromcarbon,alloyandstainlesssteelsaswellas

non ferrousmetalsandalloyswithmaximumstrength in

initialstateupto1000MPa.

Themillhasastationarypoweredhousingandamoving

cartridgewithworkingandbackuprolls.Themillperforms

thecontinuousrollingofatubeshellwithitsfeedingtothe

deformationzone by itsouterdiameter.Rollingprocess

flowisfeedandturnineachendpositionofthestandwith

theiradjustablevalues.

Rollingprocessistotallyautomated.

IMPORTANT FEATURES OF THE MILL ARE

AS FOLLOWING:

• highspeedofrolling;

• quickrollchanging;

• possibility to regulate mandrel position in the

deformation zone and to correct tube outer diameter

fromthecontrolpanel;

• possibility of setting and adjusting of feed value and

turnanglefromthecontroldesk

IMPORTANT DESIGN FEATURES OF THE

MILL ARE AS FOLLOWING:

1. theuseoftheverticalsingle-flowplanetary-crankdrive

withlinearmotionofthecrank.Thedrivecounterbalance

systembalancesdynamicloads.

2. theworking stand consisting of the stationary power

housing and the travelling cassette (quarto) with

working and backup rolls with ring passes allows to

automatically regulate desirable gaps between the

passes from the control panel. Joint sensors and

mandrelbreakagedetectorsareavailable.

3. eachmechanismprovidingshellfeedorturnisequipped

withaservodrivewhichoperationissynchronizedwith

themaindrivebythehelpof“electricshaft”system.

cOLD ROLLInG MILL 40-8

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TECHNICAL DATA

SHELL:

outerdiameter,mm 16–42

wallthickness,mm 1–8

length,m 2–8

FINISHED TUBE:

outerdiameter,mm 10–35

wallthickness,mm 0,5–6

Cartridgestrokelength,mm 600

Diesworkingzone,mm 500

Cartridgestrokenumberpermin,notmorethan 230

Feedperpulse,mm 0–10

Verticalforceofrolling,kN,upto 550

Maxreductionofcross-section,%,upto 85

Electricdrivesinstalledpower,kW,upto 220

Output,m/h,upto 350


25

cOLD ROLLInG tuBE MILL (cRtM L 25-4)

coldrollingtubepilgermillCRTML25-4isintendedfor

thecold rollingofhighprecision thin-walled tubesmade

of different steel grades with the strength value in the

initialstateofupto1000MPa.Themillequippedwitha

three-rollerstandallowstorollverythin-walledtubesand

special-purposed tubes including ribbed and hexagonal

ones.Rollingprocessistotallyautomated.

TECHNICAL CHARACTERISTICS

TWO-HIGH STAND ROLLER STAND

SHELL:

Outerdiameter,mm 10-26 6-17

Wallthickness,mm 0.5-3 Notmorethan3

Length,m 1.5-4.0(5.5)* 1.5-4.0(5.5)*

Finishedtube:

Outerdiameter,mm 5-20 4-15

Wallthickness,mm 0.2-2.0 0.08-2.0

Length,m 3.5-12

TECHNICAL PARAMETERS:

Ringdiediameter,mm 110-120 ---

Rollerdiameter,mm --- 60

Supporttrunniondiameter,mm 75 30

Standhousingstrokelength,mm 500 500

Cartridgestrokelength,mm 320 320

Dieworkingarea,mmnotmorethan 250 250

Workingstandstrokenumberperminute 30-220 30-160

Rollingforce,kN,notmore 150 50

Feedvalueperpulse,mm 0-6 0-6

Feedvaluepercycle,mm 0-10 0-10

Turningangleperpulse,degree 0-90(35-51rec) 0-90

Crosssectionreduction,%notmorethan 80 75

Productivitym/haccordingtotherollingscheduleandfinishedtube

requirements40-250 30-150

Electricdrivesratedcapacity,kW,notmore 110

www.eztm.ru

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EQUIPMENT ARRANGEMENT:

1. working stand with a drive, including:

• fixedhousing

• movablepoweredhousingoftherollstand

• rollcartridge–2nos

• movablepoweredhousingoftherollerstand

• three-rollercartridge–2nos

• leversystemofcartridgedisplacement

• workingstanddisplacementdrive

• frontchuck

• intermediatechuck

• processlubricantfeedingdevice(coolant)

• preliminarycoolantdegreasingdeviceafterrolling

• protectivedevices

2. feed section equipment including:

• feedandturnmechanism

• twoshellchuckswithguides

• twobarchuckswithmandrelpositioningmechanism,

feedingandcenteringdevicesbetweenthem

• device for lubricant feeding onto the shell inner

surfaceforthebarwiththediameterofnotlessthan

14mm(optional)

3. charging table including:

4. finished tubes receiving table including:

5. Hydraulic system

6. lubrication equipment including:

• processlubricationsystemT1forcoolantfeedingto

theworkingcone,standslideguides,rack-rollgear

catching

• process lubrication systemT2 for coolant feeding

onto the shell inner surface for the bar of the

diameternotlessthan14mm(optional)

• circularlubricationsystemЖ1

• working temperature maintenance system for T1

andЖ1

7. electric equipment

CRTML25-4millequippedwith theshellend(axial)

chargingwithoutastopforre-charging.

PROCESS FLOW DIAGRAM

Deformation process is performed at roll rolling in the

reciprocal movements of rolls with a variable groove

profile on the mandrel of conic or curvilinear shape;

at roller rolling in the reciprocal movements of rollers

with a uniform groove profile on the support plates on

themandrels having uniform cross section along their

lengths.

Atapproachingofrollstotheendpositionsthetubeand

theshellare released from thecontactwithdiegrooves

andfeedandturnofthetubeandtheshellareperformed.

Rollingprocesswithfeedandturnperformedinanyone

standpositionispossible.

Theappliedsystemofseparateservodrivesforfeedand

turn mechanisms allow to adjust their values in a wide

range.

Optimaleffectiverollorrollerradiuscorrespondingtothe

rollingscheduleisachievedbyleversystemadjustment.

The effective radius for roll rolling is variable as for the

workingcone,thisallowstoreduceaxialforcesandmakes

itpossibletorolltubeswithsmallerwallthickness.


27

cOLD ROLLInG tuBE MILL 2-40Btwo-strand universal cold rolling mill 2-40B is intended for cold rolling of high quality tubes from steels, non ferrous metals and alloys with maximum strength in initial state up to 800 MPa.The mill 2-40B has a working stand with a moving power housing and two pairs of working rolls with vertical rolling strands. The axial charging of the shell is carried out on the mill with its feeding to the deformation area by the pusher abut to the end. The shell feeding is performed in the end rear position of the stand and its turn – in the end front position. The mill runs nonstop even when new shells are loaded on the rolling axis and when finished tubes are cut to length. Balancing of force moments on the crank shaft of a drive mechanism leads to balance of inertial force of the working stand moving reciprocatingly. A feeding device has a tube clamp moving reciprocatingly per each double stroke of the stand. Tube, shell and mandrel bar turn is performed by front and intermediate chucks. The mill has vertical working rolls arrangement. Working rolls changing is performed by pairs. Die changing is performed out of the mill.

TECHNICAL CAPABILITIES OF THE MILL:1. continuous rolling of tubes made from different steels

and alloys in the automatic mode;2. high accuracy of rolled tubes which meets modern

international standards;3. wall thickness, feed, number of working stand strokes

are measured nonstop from the control panel extending design flexibility of the mill. All parameters are displayed on the screen of the panel.

MILL RELIABILITY IS GUARANTEED BY THE FOLLOWING DESIGN FEATURES:1. intermittently rotated transmission mechanisms are

excluded from the equipment. It increases mill reliability and operation life;

2. counterweight balance of the working stand inertial force on the crank shaft of the drive gear provides high number of the working stand strokes under low energy consumption.

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TECHNICAL DATA

Tube dimensions

Shell

outerdiameter,mm 32÷63,5

wallthickness,mm 2÷12

length,m 2÷5

Finished tube

outerdiameter,mm 16÷42

wallthickness,mm 0,5÷10

Technological parameters

reductionofbilletcross-section,%,upto

-coldrollingofcarbonandalloysteels 80

-coldrollingofstainlesssteels 70

workingnumberofstanddoublestrokesperminute,upto 120

feed,mm 2÷20

tuberotationangleperdoublestroke,deg.,notmorethan 60

Design parameters

standstrokelength,mm 722

dieworkingarealength,mm 620

diebarreldiameter,mm 300;330

General data

maindrivemotorpower,kW 185

millmotoroverallpower,kW 273

outputdependingonrolledtubes,m/h 200÷600


29

cOLD ROLLInG tuBE MILL 60-160

universal cold pilger mill 60-160 is intended for production of high precision light wall tubes of cylindrical, hexagonal or square section from high strength hardly deformed materials such as stainless and heatproof steels, titanium, zirconium and their alloys for different branches of power and mechanical engineering, chemical production.

THE MILL CAN OPERATE IN TWO ROLLING PATTERNS:• feed and turn in the rear end position of the stand• feed and turn in each end position of the stand.

TO EXTEND TECHNOLOGICAL POSSIBILITIES OF THE MILL IT IS POSSIBLE TO EQUIP IT WITH THE FOLLOWING INTERCHANGEABLE WORKING STANDS:• 3-high stand with ring dies having variable groove

section is intended for production of high precision cylindrical tubes;

• 3-high stand is intended for production of hexagonal or cylindrical tubes

• 4-high stand is intended for production of square tubes.

THE MILL CONSISTS OF THE FOLLOWING

EQUIPMENT:

1. Equipmentofaworkingstandwithadrive

- three-rollerworkingstand;

- four-rollerworkingstand;

- workingstanddisplacementdrive;

- housing;

- leversystem;

- intermediatechuck;

- frontchuck;

- protectiondevices;

- devicesforrollinglubricantfeedandcollection.

2. Feedsectionequipment

- frontchuckwithguides;

- mandrelbarfixingmechanism;

- guides,rests,shellchuck;

- lubricationfeedingdevice.

3. Chargingtable

4. Finishedtubesreceivingtable

5. Hydrosystem

6. Lubricationsystem

7. Electricalfacilities

TECHNICAL DATA

Shelldiameter,mm 60-160

Finishedtubediameter,mm

round50-155

hexagon≤132

square≤113,5

Finishedtubewallthickness,mm 0,4-4

Workingrollstravel,mm,upto 800

Workingstandstrokenumber,upto 50

Feedperpulse,mm 1-10

Turningangleoftheshell,degree 51,60,90

Electricdrivespower,

kW,upto200

www.eztm.ru

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cRtM AnD cRtM L MILLs REVAMPInG

Recently beside the cold rolling tube mills of a new generation developing, the specialists of our company have prepared and implemented the revamping program for CRTM 32, CRTM 55 and CRTM 90 produced by our company before.

A wide range of variants designed for various revamping levels has been developed beginning from the replacement of the separate unit or a group of units to the reconstruction including the replacement of the control system, arrangement change and process flow alteration.Nowadays various types of revamping of these mills have been applied at the plants of Russia, Ukraine and India.

EZTM, JSC revamps roller mills CRTM 8-15, CRTM 15-30 and CRTM R30-60 by their conversion to roll rolling and a new process flow at which the feed and turn of the shell is carried out at each end position of the stand.


31

sEctIOn MILLs

Equipment for section mills is one of EZTM, JSC most important products. The following table highlights technical capabilities of several section mills.

Parameters Mill type

350/250

Iight-section-wire

mill

450

medium section mill

650

heavy section mill

700 medium section-

beam mill

1 2 3 4 5

Designation Themillisintended

formanufacturing

ofrolledproductsof

roundandsquare

crosssectionandstrip

Themillisintended

formanufacturingof

awiderangeofrolled

productsofround

crosssectionand

profiles

Themillisintended

formanufacturing

ofrolledproductsof

roundandsquare

crosssectionand

profiles

Themillisintended

formanufacturingofa

widerangeofprofiles

includingbroadIight-

weightbeamsand

beamswithparallel

flanges;rollingof

flangeprofilesisalso

provided

Initialblank: fromhigh-alloyed

andhightemperature

steels

continuouscasting

fromcarbonandlow

alloyedsteels

continuouscasting continuouscasting

fromcarbonsteels

Crosssection Ø70–90

(mm)

150x150–200x200

(mmxmm)

150x150

200x200

250x250

250x360

(mmxmm)

150x150–260x335

(mmxmm)

Length,mm,max 3000 2000–6000 2900–6000 6000–10000

Weight,kg,max 150 350–2000 600–4200 1000–6500

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1 2 3 4 5

Finished products:

round,dia,mm 6–14:14–50 30–80 80–150 –

square,mmxmm 8x8÷45x45 – 60x60-100x100 –

strip,mmxmm 6–25÷20–50 – – 70–150x10–20

I-beams,mm – 80–120 160–300 80–300

channels,mm – 50–120 180–300 100–300

anglesteel,mm – 50x50x5–90x90x8 140x140x9–

200x200x12

70x70x11–

130x130x12

length,m,max 6–12 6–12 6–24 6–24

batchoverall

dimensions,mm

300x300–500x500 300x300–600x700 300x300–600x700 300x300–600x700

batchweight,t 5 10 10 10

maximumrolling

speedinfinishing

stand,m/s

20 10 10 12

Rolling equipment

coggingstand three-highofscrew

-rolling

reversingrollingstand

680

two-highreversing

900three-highrolling

800(2pcs)

reversingrollingstand

1000

roughinggroup horizontal-vertical

stands(7pcs)

stands530 two-highnon-

reversingstand730

two-highreversing

stand730

stands800

prefinishinggroup horizontal-vertical

stands(2pcs)

stands480 universalreversing

stand

horizontalstands

630(5pcs)

verticalstand450

combinedstand450

finishinggroup horizontal-vertical

stands(16pcs)

horizontalstands480 universal

nonreversingstand

horizontalstands

630(4pcs)

combinedstands

450(2pcs)

coolingdevices Coolingbedfor

receivingofrolled

productsinbarsand

coilersforreceivingof

rolledproductsandfor

itswindingintocoils

installedinthemill

line

Coolingbedforprofile

andsectionrolled

products66x9m

Coolingbedforblanks

(18x20m)andcooling

bedforprofileand

sectionrolledproducts

(72x28m)installedin

themillline

Coolingbedfor

sectionrolledproducts

2(120x28m)

notes Theschemeof

arrangementof

finishingstands

permitstorollallsizes

ofoneprofilewithout

rollchanging.

Therolledproducts

finishingprocesses

aremechanized

completely.

Cuttingoffinished

rolledproducts

isperformedin

accordancewith

thetechnological

requirements:

preliminary-inhot

statebyhotsaws,

finished–incoldstate

bycoldshears.

Processesof

rolledproducts

straightening,

stackingandbundling

aremechanized

completely.

Cuttingoffinished

rolledproducts

isperformedin

accordancewith

thetechnological

requirements:inhot

statebyhotsawsand

incoldstatebycold

shears.

Processesof

rolledproducts

straightening,

stackingandbundling

aremechanized

completely.

Whenrollingofflange

profilesuniversal

standsareinstalled

ontheplaceofthe

horizontalstands.


33

MexicoMexico

KazakhstanKazakhstan

AREARE


EZtM REPREsEntAtIVE OFFIcEs

Singapore

183TanjongRhuRd,11-01,436923,Singapore

tel.:+65-91899565

e-mail:[email protected]

China

China,100083,BeijingCity,

HaidianDistrict,JinmaPlaza,

“A”Tower,908

tel.:+86-10-82838546

fax:+86-10-82838179


Ukraine

ul.Chkalova,44,office509,

DnepropetrovskCity,Ukraine,49000

tel.:+380562314281,+380562362660

fax.+380562314280


UK

54WatermanWay,London

E1W2QW,UnitedKingdom

tel.:+4407768073917


India

EP-15DiplomaticEnclave

Chanakyapuri

NewDelhi-110021,India

tel./fax:+911126889098

mob.+919560690303

e-mail:[email protected],[email protected]

www.eztm.ru

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