GB 50754-2012 GB50754-2012挤压钢管工程设计规范-英文

专用

人人文库

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforDesignofSteelPipeExtrusionEngineering

GB50754-2012

ChiefDevelopmentDepartment:ChinaMetallurgicalConstructionAssociation

ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment

ofthePeoplesRepublicofChina

ImplementationDate:August1,2012

专用

人人文库

ChinaPlanningPress

Beijing2016

图书在版编目(CIP)数据

挤压钢管工程设计规范英文中华人民共和国住房和城

GB50754-2012:/

乡建设部组织编译北京中国计划出版社

.—:,2016.1

ISBN978-7-5182-0322-2

中管道钢管管道工程设计规范中国

Ⅰ.①G…Ⅱ.①…Ⅲ.①----

英文

Ⅳ.①TU81

中国版本图书馆数据核字第号

CIP(2015)281878

ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2012

EnglisheditionfirstpublishedinthePeoplesRepublicofChinain2016

byChinaPlanningPress

rd专用

3Floor,CTower,GuohongBuilding

No.A11,Muxidi-Beili,XichengDistrict

Beijing,100038

PrintedinChinabyBeijingJinghuaHucaisPrintingCO.,LTD

Ź2012byMinistryofHousingandUrban-RuralDevelopmentof

thePeoplesRepublicofChina

Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor

byanymea人人文库ns,graphic,electronic,ormechanical,includingphotocopying,recording,

oranyinformationstorageandretrievalsystems,withoutwrittenpermissionofthepublisher.

Thisbookissoldsubjecttotheconditionthatitshallnot,bywayoftradeorotherwise,belent,

resold,hiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof

blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition

includingthisconditionbeingimposedonthesubsequentpurchaser.

ISBN978-7-5182-0322-2

AnnouncementoftheMinistryofHousingandUrban-Rural

DevelopmentofthePeoplesRepublicofChina

No.1264

Announcementonpublishingthenationalstandardof

CodeforDesignofSteelPipeExtrusionEngineering

CodeforDesignofSteelPipeExtrusionEngineering

(hereinafterreferredtoastheCode)

hasbeenapprovedasanationalstandardwithaserialnumberGB50754-2012andwillbe

implementedonAugust1,2012.InthisCode,provisions6.1.14,6.1.21(2,3,4),12.2.5and

12.2.6arecompulsoryandmustbeenforcedstrictly.

AuthorizedbytheStandardQuotaResearchInstituteofourMinistry,thisCodeispublished

anddistributedbyChinaPlanningPress.专用

MinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina

January21,2012

人人文库

Foreword

ThisCodeisdevelopedbyCapitalEngineering&ResearchIncorporationLimited(CERI)in

conjunctionwithotherrelevantorganizationsaccordingtotherequirementsofDocumentJianBiao

[2009]NO.88issuedbyMinistryofHousingandUrban-RuralDevelopment,P.R.China

DevelopmentandRevisionPlanofNationalEngineering

(MOHURD)-"NoticeonPrintingthe

ConstructionStandardsin

2009".

Thepreparationpanelmadeanin-depthstudyandconcludedexperiencesinpipeextrusion

engineeringinChinaduringformulatingtheCode.Asresultsofwidelyconsultingdomestic

extruded-pipeproducers,designinstitutes,rawmaterialsuppliers,end-users,equipment

manufacturers,authoritiesconcerned,professionalassociationsandexpertsinthisfield,andbased

onstudyingandabsorbingexperienceswell-proveninmanyyearsathomeandabroadbytaking

intoaccountthecurrentengineeringpracticeinChina,thisCodewasexaminedandapprovedafter

repeateddiscussionsandconscientiousmodifications.

ThisCodecomprises12chapterswiththemaincontentsincludi专用nggeneralprovisions,terms,

basicrequirement,rawmaterial,producingprocess,equipment,productioncapacitycalculation,

layoutandprocessplant,electricalautomation,auxiliarysystem,maineconomicalandtechnical

targetandsecurity&environmentalprotection.

Theprovisionsprintedinboldtypeinthisstandardarecompulsoryandmustbeenforced

strictly.

MOHURDisinchargeoftheadministrationofthisstandard(code)andtheexplanationofthe

compulsoryprovisions.ChinaMetallurgicalConstructionAssociationtakesresponsibilityfor

routinemanagement,andCERIisresponsibleforexplainingthetechnicaldetails.Allrelevant

organizationsarekindlyrequestedtosumupexperiencesbytakingintoaccounttheirown

engineeringpracticesduringtheprocessofimplementingthisCode.Ifanyamendmentandaddition

isfoundnecessary,pleasemailyourcommentsandsuggestionstotheCodeAdministrationOfficeof

CERI(Address:No.7Jiananjie,BeijingEconomic&TechnicalDevelopmentArea;Postcode:

100176)forreferencesinfuturerevision.

ChiefDevelopmentOrganization,ParticipatingDevelopmentOrganizations,ChiefDrafting

StaffandChiefEx人人文库aminantsarelistedbelow.

ChiefDevelomentOranization

pg:

MCCCapitalEngineering&ResearchIncorporationLimited

ParticiatinDevelomentOranizations

pgpg:

JiangyouGreat-WallSpecialSteelCo.,LtdofPanzhihuaSteelCorp.

ZhejiangJIULIHi-TechMetalsCo.,Ltd.

SpecialSteelBusinessDivisionofBaosteel

ShanxiTaigangStainlessSteelCo.,Ltd.

InnerMongoliaNorthHeavyIndustriesGroupCo.,Ltd.

TianjinPipe(Group)Corporation

·1·

ChiefDraftinStaff

g:

TanXuefengLanXingchangShaoYuBaiZhenZhongXidi

ZhangZengquanAnHongshengZhangHaijunGongZhangyao

LiLishengLiuHuanliangDingBuwenLiZhenzi

ChiefExaminants

:

YangXiuqinLiXiaohongWuRendongWangChangcheng

WangZongbaoSuChenglongXuLianwenGuoYuxiPengXipeng

专用

人人文库

·2·

Contents

……………

1GeneralProvisions(1)

…………………………

2Terms(2)

……………

3BasicRequirement(4)

…………………

4RawMaterial(5)

………………

4.1TheHorizontalExtrusionProcess(5)

…………………

4.2TheVerticalExtrusionProcess(5)

……………

5ProductionProcess(6)

………………

5.1TheHorizontalExtrusionProcess(6)

…………………

5.2TheVerticalExtrusionProcess(6)

……………………

6Equipments(7)

……………………

6.1HorizontalExtrusionPress(7)

………………………

6.2VerticalExtrusionPress(9)

……………

7ProductionCapacityCalculation(11)

……………………

专用()

8LayoutandProcessPlant12

………………

8.1TheSiteofPlant(12)

………………………

8.2Layout(12)

……………………

8.3ConveyanceofPlantMaterial(13)

…………

9ElectricAutomation(14)

………………

9.1ElectricSystem(14)

…………

9.2AutomaticApparatus(14)

………………

9.3TelecomSystem(15)

……………

10AuxiliarySystem(16)

……………………

10.1WaterSupplyandDrainage(16)

………………

10.2ThermalPower(16)

……………

10.3FuelGasSystem(17)

…………………

11MainEconomicalandTechnicalTargets(18)

……………………

12SecurityandEnvironmentalProtection(19)

……………………

12.1Security人人文库(19)

……………………

12.2EnvironmentalProtection(19)

…………

ExplanationofWordinginThisCode(20)

…………

ListofQuotedStandards(21)

……………

Addition:ExplanationofProvisions(23)

1GeneralProvisions

1.0.1

ThisCodeisformulatedwithaviewtostandardizingthedesignofpipeextrusion

engineering,advancingthepipe-extrusiontechnologyandequipmentinChinaandguaranteeingthe

engineeringqualityaswell.

1.0.2

ThisCodeisapplicabletothedesignofconstruction,extensionandrenovationofpipe

extrusionengineering.

1.0.3

Thepipeextrusionengineeringmentionedinprovision1.0.2shallfullyimplementthe

nationalindustrydevelopmentpoliciesandpoliciesstressingonhighquality,highefficiency,energy

savingandenvironmentalprotection.

1.0.4

Thedesignofpipe-extrusionengineeringshallcomplywithnotonlytherequirements

stipulatedinthisCode,butalsothoseinthecurrentrelevantonesofthenation.

专用

人人文库

·1·

2Terms

2.0.1

Expanding

Theprocessofusingtoolstoexpandasmallholealreadyinsidethebillettothesizerequested

forextrusion.

2.0.2

Piercing

Theprocessinwhichthesolidbilletisfirstputintoapiercingcontainerandupsetwith

upsettingsteminordertomakeitfullyoccupytheinnerspaceofthecontainer.Thenextstepis

tousetoolstopierceathrough-holealongthecenterofthebilletaccordingtoextrusion

requirement.

2.0.3

Extruding

Aproductionprocess,inwhichthebilletisplacedintoalargevesselthatconsistsofextrusion

container,extrusiondie,mandrelanddummyblock;thenextrusionforceappliedbyextrusionstem

willforcemetalsflowingoutalongtheinterspaceformedbyextrusiondieandmandreltoallowthe

billettobeextrudedintopipeproduct.

2.0.4专用

Millset

Apackageofalltechnologicalequipmentsthatisnecessaryfortheentireprocess,rangingfrom

rawmaterialpreparationtoendproductswhicharespecifiedintheproductmix.

2.0.5

Annualnecessaryproductiontimeofmillset

Annualactualproductiontimethatisnecessaryforachievingtheannualproductionoutputas

specifiedintheproductmix.

2.0.6

Dutyratioofmillset

Apercentageofactualannualworkingtimetoeffectiveannualworkingtimeofthemill

set.

2.0.7

Online

Anoperationmodeinwhichaworkingstockcanbetransportedtoadesignatedworking

procedurefromacontinuouslyoperatedextrusionline,orviceversa,withouttheneedofliftingand

transportequipmentandmanualhandlingaswell.

2.0.8

Visualexamination

Amethodto人人文库observetheinsideandoutsidesurfaceofsteelpipewitheithernakedeyesor

simpletoolslikelow-magnificationmagnifierorendoscopestofindoutsurfacedefect,ifany.

2.0.9

Non-destructivetesting

Ageneraldescriptionofflawdetectionmethodswithoutdamagingpropertiesandintegrityof

materialorproducttobetested.

2.0.10

Ultrasonicinspection

Anon-destructivetestingmethodofusingultrasonictodetecttheinsideandoutsidesurface

defect,ifany.

2.0.11

Eddycurrentinspection

Aflawtestingmethodtogenerateeddycurrentinsideaconductivespecimen,andthendetect

·2·

defect,ifany,bymeasuringthevariationofeddycurrent.

2.0.12

Onlinesolutiontreatment

Aheattreatmentmethodtoobtainsupersaturatedsolidsolutionbyutilizingfastcoolingofthe

residualheatgeneratedduringpipeextrusion.

专用

人人文库

·3·

3BasicRequirement

3.0.1

Thenameofextrusionpressshallbeexpressedas"ΧΧΧMNextrusionpress",ofwhichthe

"ΧΧΧ"referstonominalextrusionforce.

3.0.2

ExtrusionpressesshouldbeselectedbasedonTable3.0.2.

Table3.0.2Extrusionpressseries

NoSpecificationsofextrusionpressseries

125MNextrusionpress

231.5MNextrusionpress

340MNextrusionpress

450MNextrusionpress

563MNextrusionpress

680MNextrusionpress

7125MNextrusionpress

8250MNextrusionpress

9360MNextrusionpress专用

3.0.3

Theextrusionpressshallbedesignedtoworkunderacontinuousduty.

3.0.4

Theannualeffectiveworkingtimeofextrusionpressshallnotbelessthan5000h,andthe

annualnecessaryproductiontimeshallnotbelessthan4000h.

3.0.5

Thedutyratiooftheextrusionpressshallnotbelowerthan80%.

3.0.6

Thepipeextrusionengineeringshouldincorporatetheconstructionofglass-padmanufacturing

facilitywhichiscapableofproducingallsizesofglasspadsforextrusionpress.

3.0.7

Thepipeextrusionengineeringshouldalsoincorporatenecessaryphysical&chemical

testingfacilitiestomeetinspectionrequirementsspecifiedinrelevantproductstandards.

3.0.8

Thesupply,repairandassemblyofproductiontoolsanddiesshallbespecifiedin

engineeringdesign.

3.0.9

Thecapacityofequipmentusedformachiningorrepairingspecialproductiontoolsanddies

shallbecalculated人人文库andcheckedindesigninordertosatisfythemillset.

·4·

4RawMaterial

4.1TheHorizontalExtrusionProcess

4.1.1

Thecastbillet,rolledbilletandforgedbilletwithroundsectionmaybeusedasraw

materialforhorizontalextrusion.

4.1.2

Thechemicalcomposition,microstructureandthelikeofthebilletsshallcomplywiththose

specifiedintherelevantcurrentnationalstandardsrelatedtosteelpipeproducts.

4.1.3

Thereshallbenodefectslikelap,linedefect,crackandshrinkagecavityonthesurfaceand

insideofthebillet.

4.1.4

Theoutlinedimensionsshallmeettherequirementofextrusionprocess.

4.2TheVerticalExtrusionProcess

4.2.1

Thesolidroundbillet,polygonalingotsorhollowbilletmaybeusedasrawmaterialfor

verticalextrusionprocess.

4.2.2

Technicalspecificationsofthebillets,suchaschemicalco专用mposition,shallcomplywith

thosespecifiedintherelevantcurrentnationalstandardsrelatedtosteelpipeproducts.

4.2.3

Hollowbilletsshouldbeusedunderthefollowingcircumstances:

1

extrudingmetalsthataredifficulttobedeformed;

2

extrudingthin-wallpipeproducts;

3

extrudingrare-metalpipesthatareveryeasytostickthepiercingrod;

4

usingtheextrusionpresswhichhasnoindependentpiercingunit.

4.2.4

Thesurfaceorinnerofthebilletsshallbefreeofdefectslikelap,scab,crack,shrinkage

cavity,etc.

4.2.5

Theoutsidediameterofthebilletshallmatchtheinsidediameterofthepiercercontainer.

人人文库

·5·

5ProductionProcess

5.1TheHorizontalExtrusionProcess

5.1.1

Thehorizontalextrusionprocessshallcompriseraw-materialpreparation,extrusion

forming,pipefinishing,heattreatmentandproductinspection.

5.1.2

Raw-materialpreparationshallincludestraightening,peeling,cutting,drilling,end-face

machining,visualinspectionandgrinding.Otherproceduresmaybeaddeddependingonproduct

variety.

5.1.3

Extrusionformingshallcomprisebilletcleaning,reheating,descaling,lubricationfor

expanding,piercingorexpanding,descaling,secondaryreheating,lubricationforextrusion,

extruding,coolingandcollection.Otherproceduresmaybeaddeddependingonproductvariety.

5.1.4

Pipefinishingshallcomprisestraightening,cuttingtolength,pipe-endtreatment,insideand

outsidesurfaceprocessing,weighing,spraymarking,printingandpacking.Otherproceduresmaybe

addeddependingonproductvariety.

5.1.5

Onlinesolutiontreatment,offlinesolutiontreatment,normali专用zing&temperingtreatment,

annealingandthelikemaybeusedforheattreatment.

5.1.6

Productinspectionshallincludenondestructivetest(NDT),insideandoutsidesurface

inspectionandoutlinedimensioninspection.Otherproceduresmaybeaddeddependingonproduct

variety.

5.2TheVerticalExtrusionProcess

5.2.1

Theverticalextrusionprocessshallcompriseraw-materialpreparation,extrusionforming,

pipefinishing,heattreatmentandproductinspection.

5.2.2

Hot-transferandhot-chargingtechnologyshouldbeusedforrawmaterialoftheextrusion

process.

5.2.3

Raw-materialpreparationshallincludesurfacecleaningandriser-headcutting.

5.2.4

Extrusionformingshallcomprisereheating,descaling,lubricationforpiercing,upsetting&

piercing,descaling,lubricationforextrusion,extrudingandcooling.Otherproceduresmaybeadded

dependingonproductvariety.

5.2.5

Pipefinish人人文库ingshallcompriseinside-andoutside-surfaceshotblasting,straightening,end-

facemachining,inside-andoutside-surfaceprocessing,weighing,sprayingmarking,printingand

packing.Otherproceduresmaybeaddeddependingonproductvariety.

5.2.6

Annealing,normalizing,normalizing&tempering,solutiontreatmentandthelikecanbe

usedforheattreatment.

5.2.7

Productinspectionshallincludenondestructivetest(NDT),insideandoutsidesurface

checkingandoutlinedimensioninspection.Otherproceduresmaybeaddeddependingonproduct

variety.

·6·

6Equipments

6.1HorizontalExtrusionPress

6.1.1

Thehorizontalpipeextrusionlineshallbeprovidedwithfull-linebasicautomationcontrol.

6.1.2

Eitherhydraulicormechanicalstraighteningmachinemaybeselectedforlong-billet

straighteningprocess.Straighteningunitshallbecombinedwithbilletturningdevice.

6.1.3

Eithermultiple-lengthpeelerorcut-to-lengthpeelercanbeselectedforpeelingprocess,and

thepeelershallmeetrequirementsasfollows.

1

Machiningsizesshallcoveralldiametersandlengthsofrawmaterials.

2

Thediametertoleranceandsurfaceroughnessaftermachiningshallconformtoextrusion

requirements.

3

Thesurfaceaftermachiningshallbefreeofanydefectthatmayaffecttheextrusion

product.

6.1.4

Thebandsawshouldbeselectedforbilletcutting.However,thecircularsawcanbea

choiceaswell.

6.1.5专用

Specialmachinetoolswhichcanperformdrillingandboreholeshallbeprovidedfordrilling

process.

6.1.6

TheCNClatheshouldbeusedforend-facemachining.

6.1.7

Thecontinuouswashinglineshouldbeselectedforbilletsurfacecleaning;andthebillet

dryingunitshallbeavailableaftercleaning.

6.1.8

Therotary-hearthfurnaceplusinductionfurnaceshouldbeselectedforbilletreheating;and

usinginductionfurnacealonemayalsobeanalternativeforthesame.Thefurnaceequipmentshall

meetthefollowingrequirements.

1

Therotary-hearthfurnaceshallmeetthetemperaturerequirementofbilletpreheatingfor

extrusionprocess.

2

Eithermains-frequencyinductionfurnaceorvariable-frequencyinductionfurnacemaybe

selectedforinductiveheating.

3

Inductionfurnaceshallensurethatthebilletreheatingtemperaturecansatisfythe

expandingandextrusionprocesses.

4

Thesizes人人文库ofinductionfurnaceshallconformtoexpandingandextrudingdimension

requirement.

6.1.9

Theverticalexpanderforexpandingprocessshallbeselectedaccordingtothefollowing

requirements.

1

Theexpendershallbeabletoperformexpanding.Meanwhile,piercingmaybeexpectedas

anadditionalfunctionoftheexpender.

2

Themaximumexpanding(piercing)capacityshallsatisfytheneedofpipeproduction.

3

Theinsidediameterofexpandingcontainershallmatchthebilletdiameter.

4

Theremustbenoanycrackanddepressiononbilletsurfaceafterexpanding.

5

Electricstoveshallbeinstalledinexpandingsectionforpreheatingtoolsanddies.

·7·

6.1.10

Hydraulicdescalershallbeselectedforbilletsurfacedescaling,andthedescalingpressure

shallnotbelowerthan12MPa.

6.1.11

Thelubricationunitforapplyingglasspowderoninsideandoutsidesurfaceofthebillet

shallbeprovidedpriortoexpandingandextrusionandcomplywiththefollowingrequirementsas

well.

1

Thelubricationtableshouldbeusedforlubricatingthebilletoutsidesurfacewithglass

powder.

2

Theautomaticmanipulatorshouldbeusedforaddingglasspowdertolubricatethesurface

ofholeinsidethebilletbeforeexpanding;andthemanualmodemaybeselectedasanoption.

3

Themanipulatorforaddingglasspowdershouldbeselectedforlubricatingtheinside

surfaceofthebilletbeforeextrusion.

6.1.12

Theselectionofextrusionpressshallmeetthefollowingrequirements.

1

Theoilshouldbeusedastransmissionmediaforextrusionpress,andthewatermaybe

usedasanalternative.

2

Themaximumextrusionforceshallmeettheproductextrusionrequirement.

3

Theinsidediameterofextrusioncontainershallmatchthebilletdiameter.

4

Theextrusiontoolsshallhaveaquick-changefunction.

5

Theinnerwallofextrusioncontainershouldbecombinedwithautomaticcleaningdevice.

6专用

Thecoolingunitshallbeprovidedformandrelbar.

7

Preheatingandcoolingdevicesshallbeinstalledforextrusioncontainer.

8

Preheatingunitshallbeprovidedfortoolsanddies.

6.1.13

Thepipeextrusionpressmayincorporatetheequipmentwhichisabletoextrudeprofiled

barandshapedpipe.

6.1.14Thesafetyguardmustbeinstalledalongdeliveryrollertable,andmustbestrongenoughto

preventmandrelandpipefromrushingoutoftheguardincaseofaccident.

6.1.15

Quenchingtankandcollectionunitshallbeavailableinpipecoolingsection;andthe

coolingbedoronlinesprayingunitmaybeusedasanalternative.

6.1.16

Theroller-hearthfurnaceshouldbeselectedforheattreatmentinextrusionshop;andthe

bogie-hearthfurnaceandchamberfurnacemaybeaddedaswell.

6.1.17

Therollerstraightenershallbeprovidedforstraighteningprocess;andthestraightening

pressmaybeaddedaswell.Thestretcherstraightenershallbeinstalledincaseofproducingprofile

bars.

6.1.18

Equipmen人人文库tselectionforsawingprocessshallconformtothefollowingrequirements.

1

Thesawingequipmentshallhavecutting-to-lengthfunction.

2

Thesawingequipmentshouldbecombinedwithdeburringunit.

6.1.19

Abrasivebeltgrindershouldbeselectedforpipeoutsidegrindingandthewet-type

grindingispreferable.

6.1.20

Thepipeinsidegrindingequipmentshallconformtothefollowingrequirements.

1

Thegrindingmachineshallbeabletoperformfull-lengthinsidegrinding;andtheinner

surfaceofpipeaftergrindingshallbefreeofanydefectlikescratchanddepression.

2

Thegrindershallbeequippedwithdedustingunit.Directemissionofdustgeneratedduring

grindingisstrictlyprohibited.

·8·

6.1.21

Picklingequipmentshallbeinstalledtoremovescalesfrominsideandoutsidesurfaceof

steelpipes;andtheshotblastingandpicklingequipmentmaybeprovidedsimultaneously.The

equipmentshallconformtotherequirementsasfollows.

1

Theshotblastingequipmentshallbeequippedtogetherwithdedustingunit.

2Theacid-mistcollectionandtreatmentunitmustbeprovidedforpicklingequipment.

3Thepicklingequipmentmustbecombinedwithcollectionandtreatmentfacilitiesforacid-

containedwastewater.

4Thewaste-acidcollectionsystemmustbeprovidedforpicklingequipment.

6.1.22

Ultrasonicflawdetectorandeddy-currentflawdetectorshallbeinstalledinnon-

destructivetest(NDT)section;andotherNDTequipmentmaybeaddedifnecessary.

6.1.23

Ultrasonicflawdetectorshallhaveafunctionofthicknessgauging.TheNDTequipment

shallbeabletomarkandrecorddefects.

6.2VerticalExtrusionPress

6.2.1

Eithertorchcuttingmachineorsawingmachinemaybeselectedforingotrisercutting.

6.2.2

Ingotgrindingmachineshouldbepro