GB 50468-2008 GB50468-2008焊管工艺设计规范-英文

专用

人人文库

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforDesignofWeldedPipeProcess

GB50468-2008

ChiefDevelopmentDepartment:ChinaMetallurgicalConstructionAssociation

ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment

ofthePeoplesRepublicofChina

ImplementationDate:July1,2009

专用

人人文库

ChinaPlanningPress

Beijing2015

图书在版编目(CIP)数据

焊管工艺设计规范英文中国冶金建设协会组织编

GB50468-2008:/

译北京中国计划出版社

.—:,2015.12

ISBN978-7-5182-0315-4

中焊管机工艺设计设计规范中国英

Ⅰ.①G…Ⅱ.①…Ⅲ.①----

文

Ⅳ.①TG333.93-65

中国版本图书馆数据核字第号

CIP(2015)273603

ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2009

EnglisheditionfirstpublishedinthePeoplesRepublicofChinain2015

byChinaPlanningPress

rd专用

3Floor,CTower,GuohongBuilding

No.A11,Muxidi-Beili,XichengDistrict

Beijing,100038

PrintedinChinabyBeijingJinghuaHucaisPrintingCO.,LTD

Ź2009byMinistryofHousingandUrban-RuralDevelopmentof

thePeoplesRepublicofChina

Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor

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

oranyinformationstorageandretrievalsystems,withoutwrittenpermissionofthepublisher.

Thisbookissoldsubjecttotheconditionthatitshallnot,bywayoftradeorotherwise,belent,

resold,hiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof

blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition

includingthisconditionbeingimposedonthesubsequentpurchaser.

ISBN978-7-5182-0315-4

AnnouncementoftheMinistryofHousingandUrban-Rural

DevelopmentofthePeoplesRepublicofChina

No.166

AnnouncementonIssuingtheNationalStandard

CodeforDesignofWeldedPipeProcess

CodeforDesignofWeldedPipeProcess

isherebyapprovedasanationalstandardwitha

serialnumberofGB50468-2008,anditshallbeimplementedfromJuly1,2009.Therein,Sections

6.4.5(2)and6.4.17arecompulsoryprovisionsandmustbeenforcedstrictly.

AuthorizedbytheResearchInstituteofStandards&Norms(RISN)oftheMinistryof

HousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina,thisCodeispublished

anddistributedbyChinaPlanningPress.专用

MinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina

November27,2008

人人文库

Foreword

ThiscodewasdevelopedbyCISDIEngineeringCo.,Ltd.togetherwiththeorganizations

concernedundertheorganizationofChinaMetallurgicalConstructionAssociation(CMCA)in

NoticeonPrintingandDistributingtheDevelopmentand

accordancewiththerequirementsof

RevisionPlanofEngineeringConstructionStandardsandCodesinBatch

2006(2)(JIANBIAO

[2006]No.136)issuedbytheformerMinistryofConstruction(MOC).

Duringthedraftingprocess,theCodedevelopmentteamhasmadein-depthinvestigationsand

studies.Basedontheweldedpipesproductiontechnologiesinrecentyearsandsummarizingthe

domesticprocessdesignofweldedpipes,theyhavewidelysolicitedtheopinionsandsuggestions

fromChinasweldedpipeproducers,research&designinstitutes,universities,feedstocksuppliers,

end-users,equipmentmanufacturers,industrialassociationsandexpertsinthefieldaswell.By

analyzingandstudyingthewell-provenexperiencebothathomeandabroadforyears,whiletaking

intoconsiderationtheactualsituationsoftheprojectimplementationinChina,theteammade

seriousdiscussionsandmultiplerevisionsbeforethepresentversionwasreviewedandfinalized.

,:专用,,

ThisCodecomprises12ChaptersrespectivelycoveringGeneralProvisionsTermsandSymbolsBasic

Requirements,FeedstockforProductionofWelded-Pipes,ProductionProcessesofWelded-Pipes,Equipment

SelectionforProductionofWelded-Pipes,ServiceDuty,ProductionTimeandDesignedDutyRatio,Calculation

ofProductionCapacities,ShopLayoutandDesign,ProductionTools,MainTechnical&EconomicIndicators,

andEnvironmentalProtection,LaborSafetyandIndustrialHealth.

Theprovisionsprintedinboldtypearecompulsoryonesandmustbeenforcedstrictly.

TheMinistryofHousingandUrban-RuralDevelopmentisinchargeofthegovernanceofthis

Codeandtheinterpretationofthecompulsoryprovisions;whileCISDIEngineeringCo.,Ltd.is

responsiblefortheinterpretationofthespecifictechnicalcontents.Alltheconcernedorganizations,

intheimplementationprocessofthisCode,arekindlyrequestedtobuildupexperienceanddatain

realsenseandfeedbacktheopinions,suggestionsanddata,whenevernecessary,toCISDI

EngineeringCo.,Ltd.(address:No.1,ShuanggangRoad,YuzhongDistrict,Chongqing400013,

China)forreferenceinfuturerevision.

ChiefDevelomentOranization

pg:

人人文库CISDIEngineeringCo.,Ltd.

ParticiatinDevelomentOranizations

pgpg:

CapitalEngineering&ResearchIncorporationLtd.

PanyuChuKongSteelPipeCo.,Ltd.

ZhejiangJiuliStainlessSteelPipeCo.,Ltd.

ChiefDraftinStaff

g:

ZengLiangpingMuDongZhangHaijunCaoZhiliangFengZhaotang

JiHaiLanXingchangLiuShizeHuangKejianCaoYongChenBenlun

ChenBaolinZhongJianxiongLiRuihuaWangYin

Contents

……………

1GeneralProvisions(1)

…………

2TermsandSymbols(2)

……………

3BasicRequirements(4)

…………………

4FeedstockforProductionofWeldedPipes(5)

………

5ProductionProcessesofWeldedPipes(6)

…………………

5.1ProductionProcessofHighFrequencyLongitudinalWeldedPipe(6)

…………………

5.2ProductionProcessofLongitudinalSubmerged-ArcWeldedPipes(6)

…………

5.3ProductionProcessofSpiralSubmerged-ArcWeldedPipes(6)

……

5.4ProductionProcessofStainlessSteelContinuousWeldedPipes(7)

…………………

5.5ProductionProcessofStainlessSteelDiscontinuousWeldedPipes(7)

……

6EquipmentSelectionforProductionofWeldedPipes(8)

…

6.1EquipmentSelectionforProductionofHighFrequencyLongitudinalWeldedPipes(8)

……

6.2EquipmentSelectionforProductionofLongitudinalSubmerged-ArcWeldedPipes(11)

…………

6.3EquipmentSelectionforProductionofSpiralSubmerged-ArcWeldedPipes专用()

12

……

6.4EquipmentSelectionforProductionofStainlessSteelContinuousWeldedPipes(13)

……

6.5EquipmentSelectionforProductionofStainlessSteelDiscontinuousWeldedPipes(15)

…………………

7ServiceDuty,ProductionTimeandDesignedDutyRatio(16)

………

8CalculationofProductionCapacities(17)

……………………

9ShopLayoutandDesign(18)

……………

10ProductionTools(19)

……………………

11MainTechnical&EconomicIndicators(20)

…………

12EnvironmentalProtection,LaborSafetyandIndustrialHealth(21)

…………

ExplanationsofWordinginthisCode(22)

人人文库

1GeneralProvisions

1.0.1

ThisCodeisformulatednotonlytostandardizetheprocessdesignofwelded-pipemillsets

andassurethequalityofprocessdesignconcerned,butalsotopromotetheadvancementin

technologicalprocess,equipmentoutfitofthewelded-pipemillsetsandtheproductiontechnologies

forweldedpipes.

1.0.2

ThisCodeisapplicabletotheprocessdesignofconstruction,modernizationandexpansion

projectsofmillsetsforproductionoflongitudinalhigh-frequencylongitudinalweldedpipes,

longitudinalsubmerged-arcweldedpipes,spiralsubmerged-arcweldedpipes,andindustrial

stainlesssteelweldedpipes.

1.0.3

Thewelded-pipemillsetstobeconstructed,modernizedorexpandedshallconformtothe

nationalindustrialpolicyandmeettherequirementsforhighqualityandefficiency,low

consumption,andenvironmentalprotection.

1.0.4

Theprocessdesignofthewelded-pipemillsshallcomplywithnotonlythisCode,butalso

therequirementsspecifiedintherelevantnationalstandardsinforce专用.

人人文库

·1·

2TermsandSymbols

2.0.1

SpotWelding

Itsaweldingprocessinwhichelectricarcisusedastheheatingsourcetomeltdownthe

weldingjointofawork-piecetoformspot-likeordiscontinuouswelds.

2.0.2

HighFrequencyLongitudinalWeldedPipe

Itsapipewithalongitudinalseamweldedbyhighfrequencyweldingprocessoverthelength

ofthepipebody.

2.0.3

PipeEndTreating

Itreferstothenon-plasticdeformationprocessingonthepipeendstoprovidetheplainpipe

withendsasrequiredfromtheproductstandards.Itincludespipeenddefectremoval,flash

trimming,dressing,bevelingandthelike.However,itdoesnotincludeendupsetting,sizing,

threading,couplingandsoon.

2.0.4

WeldedPipe

Itsapipemadeofsteelsheetorstripwhichisbenttohaveatu专用bularform,withalongitudinal

orspiralseamweldedoverthefulllengthofthepipebody.

2.0.5

MillSet

Itsacollectionoftheprocessequipmenttoproducetheproductsinthemix,coveringthe

processoffeedstockpreparationdownstreamtothefinalproductstorage.

2.0.6

AnnualScheduledOperationTimeofMillSet

Itstheyearlycalendartimedeductingthetimerequiredformajor,mediumandminor

maintenanceandnormalshiftchange-oversofthemillset.

2.0.7

AnnualAvailableProductionTimeofMillSet

Itstheannualscheduledoperationtimedeductingthetimerequiredforchangingtherolls,

toolsandspecificationsandshutdownofthemillset.

2.0.8

AnnualNecessaryProductionTimeofMillSet

Itstheactualtimerequiredforthemillsettoachievetheannualoutputasspecifiedinproduct

mix.

2.0.9

DutyRatioofMillSet

Itstheratioo人人文库ftheannualnecessaryproductiontimetotheannualavailableproductiontimeof

themillset.

2.0.10

WeightRatioofPlateorStriptoProduct

Itstheratiobetweentheweightoftheconsumedplateorstripforproductionoftheproducts

ofallthesizesspecifiedintheproductmixandthetotalweightoftheproductsbythemillset.

2.0.11

Offline

Itsoneoftheoperationmodesinwhichawork-piece(includingfeedstockandsemi-finished

pipes)cannotbemovedfromtheproductionlineoftheweldedpipesincontinuousoperationtoa

certainsequenceofthelineorviceversawithoutthehelpofhoistingandtransportationequipment

orbyhand.

·2·

2.0.12

SpiralSubmerged-arcWeldedPipe

Itsapipewithaspiralseamweldedbysubmerged-arcweldingprocessoverthepipebody.

2.0.13

ManualInspection

Itsaprocessinwhichtheinnerandoutersurfacequality,shapeanddimensionofawelded

pipeareinspectedbyeyesorsimpletoolslikelow-poweramplifier,endoscope,gauges,etc.

2.0.14

Online/Inline

Itsoneoftheoperationmodesinwhichawork-piece(includingfeedstockandsemi-finished

pipes)canbemovedfromtheproductionlineoftheweldedpipesincontinuousoperationtoa

certainsequenceofthelineorviceversaevenwithoutthehelpofhoistingandtransportation

equipmentorbyhand.

2.0.15

LongitudinalSubmerged-arcWeldedPipe

Itsapipewithalongitudinalseamweldedbysubmerged-arcweldingprocessoverthepipe

body.

2.0.16

AutomaticButtWelder

Itsawelderwhichcanautomaticallyperformbuttweldingontheheadandtailendsofthe

stripexceptitsparametersetupandstart/stop.

2.0.17

AutomaticInsideFlashTrimmer

Itsadevicewhichcanautomaticallytrimofftheflashesfromtheinsidefaceofthewelds

/专用

exceptitsstartstopandadjustment.

2.0.18

AutomaticOutsideFlashTrimmer

Itsadevicewhichcanautomaticallytrimofftheflashesfromtheoutsidesurfaceofwelds

exceptitsstart/stopandadjustment.

2.0.19

AutomaticSubmerged-ArcWelder

Itsawelderwhichcanautomaticallyperformsubmerged-arcweldingexceptitsparameter

setupandstart/stop.

2.0.20

AutomaticGasShielded-ArcWelder

Itsawelderwhichcanautomaticallyperformthegasshieldedarcweldingexceptitsparameter

setupandstart/stop.

人人文库

·3·

3BasicRequirements

3.0.1

Thespecificationsofmillsetsforproducinghighfrequencylongitudinalweldedpipe

(ERW),spiralsubmerged-arcweldedpipe(SSAW)andstainlesssteelcontinuousweldedpipe

(EFW)shouldbeselectedonthebasisofTable3.0.1.

Table3.0.1SpecificationsofMillSetsforProductionofERW,SSAWandEFWPipes

ERWSSAWEFW

CodeofDia.RangeofCodeofDia.RangeofCodeofDia.Rangeof

MillSetWeldedPipe(mm)MillSetWeldedPipe(mm)MillSetWeldedPipe(mm)

#4214-42#508219-508#258-25

#6020-60#720325-720#6321-63

#7625-76#920406-920#7625-76

#11433-114#1220406-1220#8932-89

#16860-168#1420508-1420#11438-114

#21973-219#2030720-2030#16860-168

#27390-273#2540760-2540专用#21989-219

#325114-325#28501,200-2850#325114-325

#406140-406#30501,420-3050#406140-406

#508168-508--#508168-508

#610219-610--#610219-610

Note:ERWintheaboveTable3.0.1referstothemillsetforproductionofhighfrequencylongitudinalweldedpipes,SSAWthemill

setforproductionofspiralsubmerged-arcweldedpipes,andEFWthemillsetforproductionofstainlesssteelcontinuouswelded

pipes.

3.0.2

Themillsetforproductionoflongitudinalsubmerged-arcweldedpipesshouldbeinstalled

nearbythewide/heavyplatemillsetwheresupplyoffeedstockisguaranteed.

人人文库

·4·

4FeedstockforProductionofWeldedPipes

4.0.1

Themillsetsforproductionofhighfrequencylongitudinalweldedpipesspiralsubmerged-

arcweldedpipesshouldusestripcoilsasthefeedstock.Themillsetforproductionoflongitudinal

submerged-arcweldedpipesshouldusethesinglecut-to-lengthsheetsasthefeedstock.Andthe

millsetforproductionofstainlesssteelcontinuousweldedpipesshallusethestripcoilsasthe

feedstock,themillsetforproductionofstainlesssteeldiscontinuousweldedpipesshouldusethe

singlecut-to-lengthsheetsasthefeedstock.

4.0.2

Themillsetsforproductionofhighfrequencylongitudinalweldedpipes,spiralsubmerged-

arcweldedpipesandstainlesssteelcontinuousweldedpipesshouldusetheheavyorslitstripcoilsas

thefeedstock.ForERWandSSAW,theweightperunitwidthofthehot-rolledstripcoilsshould

notbelessthan16kg/mm,andthatofthecold-rolledstripcoilshouldnotbelessthan8kg/mm.For

EFW,theweightperunitwidthofthehot-rolledstripcoilsshouldnotbelessthan10kg/mmand

thatofthecold-rolledstripcoilsshouldnotbelessthan8kg/mm.

4.0.3

Thestripcoilsusedasthefeedstockforweldedpipemill专用setsshouldbeof762mmor

508mmininnerdiameter.

人人文库

·5·

5ProductionProcessesofWeldedPipes

5.1ProductionProcessofHighFrequencyLongitudinalWeldedPipe

5.1.1

Theproductionofhighfrequencylongitudinalweldedpipesshallinvolvesuchworkingprocedures

asstrippreparation,formingandwelding,welddressing,sizingandcutting,andpipefinishing.

5.1.2strippreparation

Theprocedureshallincludethestepsofcoilcharging,uncoiling,

leveling,cropping,splicing,edgemachining,andstripflawdetection.Otherstepsmaybeaddedduly

whenrequiredfromthespecificproductmix.

5.1.3formingandwelding

Theprocedureshallcomprisebothstepsofformingandwelding.

5.1.4welddressing

Theprocedureshallincludethestepsofinsideandoutsideflas