GB 50713-2011 GB50713-2011板帶精整工藝設(shè)計規(guī)范-英文

專用

人人文庫

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforDesignofFinishingProcess

ofPlateandStripSteel

GB50713-2011

ChiefDevelopmentDepartment:ChinaMetallurgicalConstructionAssociation

ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment

ofthePeoplesRepublicofChina

ImplementationDate:June1,2012專用

人人文庫

ChinaPlanningPress

Beijing2015

圖書在版編目(CIP)數(shù)據(jù)

板帶精整工藝設(shè)計規(guī)范英文中國冶金建設(shè)協(xié)會組織編

GB50713-2011:/

譯北京中國計劃出版社

.—:,2015.12

ISBN978-7-5182-0295-9

中板材軋制精整設(shè)計規(guī)范英文

Ⅰ.①G…Ⅱ.①…Ⅲ.①----②

帶材軋制精整設(shè)計規(guī)范英文

---Ⅳ.①TG335.5-65

中國版本圖書館數(shù)據(jù)核字第號

CIP(2015)263264

ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2011

EnglisheditionfirstpublishedinthePeoplesRepublicofChinain2015

byChinaPlanningPress

rd專用

3Floor,CTower,GuohongBuilding

No.A11,Muxidi-Beili,XichengDistrict

Beijing,100038

PrintedinChinabyBeijingJinghuaHucaisPrintingCO.,LTD

?2011byMinistryofHousingandUrban-RuralDevelopmentof

thePeoplesRepublicofChina

Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor

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

oranyinformationstorageandretrievalsystems,withoutwrittenpermissionofthepublisher.

Thisbookissoldsubjecttotheconditionthatitshallnot,bywayoftradeorotherwise,belent,

resold,hiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof

blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition

includingthisconditionbeingimposedonthesubsequentpurchaser.

ISBN978-7-5182-0295-9

AnnouncementoftheMinistryofHousingandUrban-Rural

DevelopmentofthePeoplesRepublicofChina

No.1081

AnnouncementonIssueofNationalStandard

CodeforDesignofFinishingProcessofPlateandStripSteel

Codefordesignoffinishingprocessofplateandstripsteel

isnowapprovedasanational

standardwithaserialnumberofGB50713-2011,anditshallbeimplementedfromJune1,2012.

Therein,Articles3.0.6,4.2.4(15)and4.3.3(10)arethecompulsoryprovisionsandmustbe

enforcedstrictly.

AuthorizedbytheResearchInstituteofStandards&Norms(RISN)oftheMinistryof

HousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina,thisCodeispublished

anddistributedbyChinaPlanningPress.專用

MinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina

July26,2011

人人文庫

Foreword

Accordingtotherequirementsof(DocumentJianBiao[2008]No.105)"NoticeonPrintingand

DistributingtheDevelopmentandRevisionPlanofConstructionStandardsandCodesin2008(Batch2)"

issuedbytheMinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina,this

CodewasdevelopedbyCISDIEngineeringCo.,Ltd.togetherwiththeorganizationsconcerned.

Duringthedraftingprocess,theCodedevelopmentteamshaveconductedthorough

investigationsandstudies,carefullysummarizedpracticalexperience,referredtotherelevant

internationalstandardsandforeignadvancedstandards,collectedthesuggestionsandcomments

fromtherelevantpartiesthroughvariouschannelsandfinalizedthepresentversionafterfull

examinationandapproval.

ThisCodecomprises6Chapters.Themaintechnicalcontentsare:GeneralProvisions,Terms,

BasicRequirements,FinishingProcessofPlate,FinishingProcessofHotRolledWideSteelStrip

andFinishingProcessofColdRolledWideSteelStrip.

Theprovisionsprintedinboldtypearecompulsoryonesandmu專用stbeenforcedstrictly.

TheMinistryofHousingandUrban-RuralDevelopmentisinchargeoftheadministrationofthis

Codeandtheexplanationofthecompulsoryprovisions;andCISDIEngineeringCo.,Ltd.isresponsible

fortheexplanationofspecifictechnicalcontents.DuringthepracticalimplementationofthisCode,the

opinionsandsuggestions,whenevernecessary,canbepostedtoCISDIEngineeringCo.,Ltd.(address:

No.1,ShuanggangRoad,YuzhongDistrict,Chongqing400013,China)forreferenceinfuturerevision.

TheChiefDevelopmentOrganization,ParticipatingDevelopmentOrganizations,ChiefDrafting

StaffandChicefExaminersofthiscodearelistedbelow:

ChiefDevelomentOranization

pg:

CISDIEngineeringCo.,Ltd.

ParticiatinDevelomentOranizations

pgpg:

CapitalEngineering&ResearchIncorporationLtd.

WISDRIEngineering&ResearchIncorporationLimited

HuatianEngineering&TechnologyCorporation,MCC

ShanxiTISCOEngineeringCo.,Ltd.

人人文庫WISCODesigningInstituteCo.,Ltd.

PangangGroupDesigningInstituteCo.,Ltd.

ShagangGroupCo.,Ltd.

ChiefDraftinStaff

g:

XiaoJunHuangBoYuHaiWangJunxiangZhaoWenboFanCaibiao

LiaoYanlinXuYueminLiYuejianWanBaoyuanWangJinghuiLiXiangdong

MaoYibiaoBaiXiaojing

ChiefExaminers

:

GuoQijiaoShaoYuanjingCaoJianningHuangChuanqingTangShunbao

WangAnsuYuDanWangYekeYangChunmei

Contents

……………

1GeneralProvisions(1)

…………………………

2Terms(2)

……………

3BasicRequirements(4)

……………………

4FinishingProcessofPlate(5)

…………

4.1FinishingProcessofExtra-HeavyPlate(5)

…………

4.2FinishingProcessofCarbonSteelPlate(6)

…………

4.3FinishingProcessofStainlessSteelPlate(8)

………………

5FinishingProcessofHotRolledWideStrip(10)

…………

5.1GeneralRequirements(10)

…………

5.2HotTemperMillandCoilDividingLine(11)

………

5.3Cut-to-LengthLineofThickSpecifications(12)

……………………

5.4Cut-to-LengthLineofMediumSpecifications(13)

………

5.5Cut-to-LengthLineofThinSpecifications(13)

…………

5.6SlittingShearingLine專用()

14

………………

6FinishingProcessofColdRolledWideStrip(16)

…………

6.1GeneralRequirements(16)

……………

6.2RecoilingLineofCarbonSteelStrip(16)

………

6.3SlittingShearingLineofCarbonSteelStrip(17)

………

6.4Cut-to-LengthLineofCarbonSteelStrip(18)

……………

6.5WrappingLineofCarbonSteelStrip(19)

……………

6.6RecoilingLineofStainlessSteelStrip(19)

……………………

6.7SlittingShearingLineofStainlessSteelStrip(20)

………

6.8Cut-to-LengthLineofStainlessSteelStrip(21)

…………

6.9WrappingLineofStainlessSteelStrip(22)

……………

6.10RecoilingLineofElectricSteelStrip(22)

……………………

6.11SlittingShearingLineofElectricSteelStrip(23)

…………

6.12WrappingLineofElectricSteelStrip(24)

…………

ExplanationofWo人人文庫rdinginThisCode(25)

…………

ListofQuotedStandards(26)

1GeneralProvisions

1.0.1

Thiscodeisdevelopedforimplementationofnationaltechnicalandeconomicpoliciesand

developmentpoliciesofsteelindustry,toachievetechnologicallyadvanced,safeandsuitable,

economicandrationalpurpose,andensurethequalityduringfinishingprocessdesignofflatsteel.

1.0.2

Thiscodeappliesforfinishingprocessdesignofnewplatemill,revampingandexpanding

ofplatemill,hotrolledwidesteelstripmillandcoldrolledwidesteelstripmill.

1.0.3

Inadditiontotherequirementsstipulatedinthiscode,thosestipulatedinthecurrent

relevantstandardsofthenationshallbecompliedwithindesigningthefinishingprocessofflat

stee.

專用

人人文庫

·1·

2Terms

2.0.1

Plate

Platecanbeclassifiedintothreecategoriesintermsofthickness:mediumplaterangingfrom

4mmto20mmthickness,heavyplaterangingfrom0mm-60mmandthickandextra-heavyplateover

60mmthickness.

2.0.2

Aircooling

Tocoolhotsteelplateinairafteritisrolled.

2.0.3

Slowcoolingprocess

Itisatechnologicalprocesstoslowlycoolhotsteelplatebymeansofslowcoolingpit,slow

coolingcoverorbysimplystackingtheplatesinpile.

2.0.4

Ultrasonictest

Itisamethodtodetecttheinternaldefectofplatebyultrasonicwave.

2.0.5

Shearing&cuttingprocess

Headcutting,tailcutting,trimming,splitting,cutting-to-length,s專用amplecuttingmaybedoneby

mechanicalshearinginaccordancewithyieldstrengthandthicknessofplate.

Headcutting,tailcutting,trimming,splitting,cutting-to-lengthandsamplecuttingmaybe

donebyflamecutting,plasmacutting,lasercuttingandsoonifmechanicalshearcannotcutorto

compensateforinsufficientcapacityofmechanicalshear.

2.0.6

Shotblastingprocess

Itisatechnologicalprocessthattakessteelshotascarrier,acceleratessteelshotthrough

centrifugalforceofshotblastingmachine,hitssteelplatesurfacetoremoveoxidescaleonits

surface.

2.0.7

Paintingprocess

Itisatechnologicalprocessthatsprayspaintevenlyontosteelplatesurfacebyautomaticor

manualpaintingdevice.

2.0.8

Picklingprocess

Itisatechnologicalprocessthatgroupsheattreatedstainlesssteelplatesandcontinuously

passesthemthroughpicklinglinetocleanmillscaleontheplatesurfaceandtopassivatethe

plates.人人文庫

2.0.9

Hotrolledtemperrollingprocess

Itisatechnologicalprocessthatappliessmalldeformationelongationoveryieldpointonhot

rolledstriptoeliminateLuderswrinklesonstrip.

2.0.10

Hotrolleddividingprocess

Itisatechnologicalprocessthatdivideshotrolledcoilintoseveralsmallcoils.

2.0.11

Hotrolledrecoilingprocess

Itisatechnologicalprocessthatrecoilshotrolledcoiltocheckstripsurfacequalityorimprove

coilshapequality.

2.0.12

Hotrolledcut-to-lengthprocess

·2·

Itisatechnologicalprocessthatcutshotrolledstriptolength.

2.0.13

Hotrolledslittingprocess

Itisatechnologicalprocessthatslitshotrolledstripwidth-wiseintostripsandthenrecoilsthe

strips.

2.0.14

Rollingforcecontrol

Itisatechnologicalcontrolprocessthatcontrolsrollingforcetoreachpresetvalueandkeeps

itconstant.

2.0.15

Rollbendingcontrol

Itisatechnologicalcontrolprocessthatcontrolsproperlyrollbendingmodeandrollbending

force.

2.0.16

Elongationcontrol

Itisatechnologicalcontrolprocessthatcontrolselongationalongthestriplengthdirectionto

reachpresetvalueandkeepsitconstant.

2.0.17

Sidetrimmingprocess

Itisatechnologicalprocessthattrimsstripedge.

2.0.18

Flyingshearcut-to-lengthprocess

Itisatechnologicalprocessthatdetectssteelplatelengthandstartsflyingshearfor

synchronouscut-to-length.

2.0.19專用

Levelingprocess

Itatechnologicalprocessthatcontrolsrollgapvalueoflevelingrollstacktoensurestrip

plasticdeformationratioreachesthesetvalue.

2.0.20

Platepilingcontrol

Itisacontrolprocessthatcontrolspilingbyplatepilerbasedonproductionplanssuchasplate

numberorpileweight.

2.0.21

Coldrolledrecoilingprocess

Itisatechnologicalprocessthattrimscold-rolledcoil,inspectssurfacequalityandrecoils

accordingtospecifiedcoilweight.

2.0.22

Coldrolledcut-to-lengthprocess

Itisatechnologicalprocessthatcutscoldrolledstriptolength.

2.0.23

Coldrolledslittingprocess

Itisatechnologicalprocessthatslitscoldrolledstripwidth-wiseintostripsandthenrecoils

thestrips.

2.0.24

Packingp人人文庫rocess

Itisatechnologicalprocessthatstrapsandpackscoldrolledcoil.

·3·

3BasicRequirements

3.0.1

Thedesignoffinishingprocessofflatsteelshallbebasedontheactualconditionsofthe

specificflatsteelfinishingproject,withtheadoptionofapplicabletechnology,processand

equipment.

3.0.2

Thedesignoftheoperationequipmentforflatsteelfinishingprocessshallfollowthe

principleofbeing"advanced,applicable,reliableandsafe",andtheprocessoperationequipment

shallmatcheachotherintermsofcapacitysoastoassuretheproductionprocessshallbesmooth

andstable,meettherequirementsforproductmix,aswellascomplywiththeactivenational

standardswithrespecttoproductquality.

3.0.3

Thedesignofflatsteelfinishingprocessshallcomplywithpertinentrequirementsofthe

Codefordesignofwatersavingforironandsteel

currentnationalstandardsGB50506

enterprisesCodeofdesignonfireprotectionandpreventionforiron&steel

,GB50414

metallurgyenterprisesComprehensiveemissionstandardofairpollutants

,GB16297,GB13456

DischargestandardofwaterpollutantsforironandsteelindustryCodefordesignof

,GB50406

environmentalprotectionofironandsteelindustryand專用Codefordesignof

GB50405

comprehensiveutilizationofironandsteelindustryresources

.

3.0.4

Theelectricdriveandautomationequipmentlevelofflatsteelfinishinglineshallbefitfor

theproductionprocessrequirementsandmechanicalequipmentlevel;designofautomationcontrol

systemandon-linedetectionsystemshallcomplywiththeprincipleofbeing"universal,open,

highlyreliableandfast".

3.0.5

Flatsteelrollingmillandauxiliaryfacilitiesofflatsteelfinishinglineshouldbedesigned

bytakingallconsiderationsasawholesystem.

3.0.6Ironandsteelenterprisemustnotusebackwardsecond-handflatsteelfinishingline

equipmentthathasbeeneliminatedathomeandabroad.

3.0.7

Thedesignedoutputofflatsteelfinishinglineshouldachievecost-effectiveproduction

capacity,andtheannualworkingtimeandloadrateofthelineshallbeproperlydetermined.Main

technicalandeconomicindexshallreachdomesticadvancedlevel,andenergyconsumptionof

processprocedureshallcomplywithpertinentrequirementsofcurrentnationalstandardGB50632

Codefordesignofenergysavingofironandsteelindustry

人人文庫.

3.0.8

Low-noiseequipmentshouldbeadoptedindesign;incaseofhigh-noiseequipment,sound

insulation,soundabsorption,noisereductionandothermeasuresshallbetakenm,andthenoise

Specificationsfor

shallcomplywithpertinentrequirementsofcurrentnationalstandardGBJ87

thedesignofnoisecontrolsysteminindustrialenterprises

.

·4·

4FinishingProcessofPlate

4.1FinishingProcessofExtra-HeavyPlate

4.1.1

Thefinishingprocessprocedureofextra-heavyplateshouldincludecoolingafterrolling,

surfaceinspection,grinding,headcutting,tailcutting,trimming,cut-to-lengthandsample

cutting,internaldefectdetection,flattening,marking,finishedproductstorageandotherprocess

steps.

4.1.2

Heattreatmentandcut-to-length,sampling,straighteningandsoonafterheattreatment

maybedoneforproductvarietiesandsizeswithspecialrequirements,andsomeproductsmayalso

bedemagnetized.

4.1.3

Incomingmaterialshouldbesteelplaterolledbyplatemill.

4.1.4

Productionprocessandequipmentshallmeetthefollowingrequirements:

1

Dedicatedcoolingbedortableshouldbeprovidedonproductionline,diskorwalkingtype

coolingbedispreferred.

2

Slowcoolingmodeandslowcoolingtimeshallbedetermined專用accordingtosteelgrade,size,

chemicalcomposition,smeltingandcastingprocessconditionsandotherfactors.

3

Surfaceinspectionofcooledextra-heavyplateshallbedonefirst,thentheplateshallbe

turnedoverbyturn-overmachineanddefectshallbetreatedifany.

4

Plateshouldbecutbythewayofautomaticflamecuttingorplasmacutting.Plasma

cuttingshallbeprovidedwithdustcollectingdeviceorthecuttingshallbedoneunderwater.

5

Platewithinternalqualityrequirementshallbedetectedbyultrasonictestingdevicefor

detectinginternaldefect.

6

Steelplateshouldbeflattenedbyflattener.Carry-overtableshouldbeprovidedbeforeand

aftertheflattenerandtheflattenerpressheadshallbeabletomovelaterally.

7

Steelplatesurfaceshallbemarked.

8

Theoveralldimensions,upperandlowersurfaces,edges,straightnessandmarkingquality

ofextra-heavyplateshallbecheckedaccordingtotechnicalrequirementsduringitsfinishing

process.

4.1.5

Theworkingsystemandannualworkingtimeoffinishinglineshallbedetermined

accordingtothede人人文庫signedoutput,productvarieties,sizesandproductionprocess,etc.,whichmaybe

differentfromthoseoftherollingline.

4.1.6

Processlayoutshallmeetthefollowingrequirements:

1

Properequipmentconfiguration,compactlayout,smoothandshortprocessflowand

properbufferstorageshallbedesignedaccordingtosuchcharacteristicsasdiversifiedproduct

varietiesandsizes,smallproductionlot,crossingrouteoffinishingprocessroutesandlong

processingcycle.

2

Theoperationofextra-heavyplatefinishingshouldbeconcentratedinthespecificareain

platemillworkshop.

3

Plateslowcoolingandpilingyardshallbeprovided.

·5·

4.2FinishingProcessofCarbonSteelPlate

4.2.1

Thefinishingprocessofsteelplateshouldincludecoolingafterrolling,shearingorcutting,

surfacequalityandoveralldimensionsinspection,grindingofdefect,flawdetection,sampling,

marking,flattening,finishedproductstorageandotherprocesssteps.

4.2.2

Incomingmaterialshouldbesteelplaterolledbyplatemill.

4.2.3

ThedesignedoutputofshearinglineshouldmeettherequirementsasspecifiedinTable

4.2.3below:

Table4.2.3Designedoutputofshearingline

FinishedplatesizeTypicalsizeDesignedoutputT

3

Thickness×width×length(mm)(mm)(10t/a)

T

(5-50)×(900-4800)×(3000-25000)50001200≤≤1600

T

(5-50)×(900-4100)×(3000-25000)43001100≤≤1400

T

(5-50)×(1200-3300)×(3000-18000)3500800≤≤1200

Note:Thelowerlimitofdesignedoutputmaybeselectedforproducingproductofwiderrangeofvarieties,narroweraveragewidth

andthinneraveragethickness.

4.2.4

Productionprocessandequipmentshallmeetthefollowingrequirements:

1

Dedicatedcoolingbedortableshouldbeprovided,diskor專用walkingtypecoolingbedis

preferred.

2

Slowcoolingmodeandslowcoolingtimeshallbedeterminedaccordingtosteelgradeof

platetoberolled,size,chemicalcomposition,smeltingandcastingprocessconditionsandother

factors.

3

Inspectionandgrindingtableshouldbeprovidedaftercoolingbed.

4

Platewithinternalqualityrequirementshallbedetectedbyautomaticultrasonictesting

devicefordetectinginternaldefects,whichshallbedonefullyautomaticallyandcontinuously.

Automaticultrasonictestingdeviceshouldbearrangedonline.

5

Platemillworkshopshallbeprovidedwithmechanicalshearinglineandofflineplate

cuttingequipment.Offlinecuttingofplateshouldbedonebyautomaticflame,plasmaorlaser

cuttingdevice.Plasmacuttingshallbeprovidedwithdustcollectingequipmentorthecuttingshall

bedoneunderwater.

6

Platecuttingshouldbeprovidedwithheadcutting(tailcutting)dividingshear,double-side

trimmingshearandcut-to-lengthshear.5000mmproductionlineshouldbeprovidedwithslitting

shearandlocatedn人人文庫earthedouble-sidetrimmingshear.

7

Trimmingshouldbedonebyrollingcuttypedouble-sideshearordisctrimmingshear.

8

Shearinglineshallbeprovidedwithautomaticmarkingandcenteringdevice,headandtail

scrap,slitteredgeandsample(motherplate)transportationandcollectionequipment,andfinished

platedetectionandautomaticmarkingmachineandotherprocessequipment.

9

Inspectionandgrindingtableshouldbeprovidedbeforestorageoffinishedproducts.

10

Coldstraightenershouldbeprovidedonplatefinishingline,andshallbeinstalledwithmill

scalecleaningandcollectingdevice.

11

Continuousheattreatmentlineshouldbeprovidedforplate.Nitrogenprotectedradiant

tubeheatingroller-hearth,openflameheatingroller-hearthfurnaceoropenflameheatingdual-

·6·

walkingbeamfurnace,andcontinuousrollingtypequenchingmachineandotherprocessequipment

shouldbeprovided.

Heattreatmentofsmallorder,specialsteelgrade,special-sizedplateshouldbedonebynon-

continuousheattreatmentfurnace.

12

Shotblastingdeviceshouldbeprovidedfornitrogenprotectedradianttubeheatingroller

hearthfurnace.

13

Heattreatmentlineshouldbeprovidedwithheattreatmentstraightener.

14

Platefinishingmillmaybeprovidedwithplatecoatingline.

15Platecoatinglinemustbeprovidedwithexhaustemissiontreatmentfacilities;paintstorage

roommustbedesignedaccordingtorelevantanti-hazardclassificationwhenorganiccoatingis

used.

4.2.5

Electricdriveandautomationequipmentshallmeetthefollowingrequirements:

1

VariablespeedmotorshallbeprovidedwithACspeedcontrolsystem.

2

Shearingline,heattreatmentlineshallbeprovidedwithbasicautomationandprocess

controlcomputersystem.

3

Finishinglineshouldbeprovidedwiththesameproductioncontrolcomputersystemasthe

rollingmill.

4.2.6

Workingsystemandannualworkingtimeshallmeetthefollowingrequirements:

1專用

Shearinglineshallbeprovidedwiththesameworkingsystemandannualworkingtimeas

therollingmill.

2

Heattreatmentlinemaybeprovidedwithworkingsystemandannualworkingtime

differentfromthoseoftherollingmill.

3

Shotblastingline,paintinglineandcuttinglinemaybeprovidedwithworkingsystemand

annualworkingtimedifferentfromthoseoftherollingmill.

4.2.7

Processlayoutshallmeetthefollowingrequirements:

1

Properequipmentconfiguration,compactlayout,smoothandshortprocessflowandproper

bufferstorageshallbedesignedaccordingtosuchcharacteristicsasdiversifiedproductvarietiesand

sizes,smallproductionlot,multiplefinishingroutesandfrequentcrossingtoandfrowithanaimto

savelandoccupationandinvestment,aswellastoresevethepossibilityforfutureexpansionwith

respecttoincreasingproductvarietiesandimprovingrollingmillproductioncapacity.

2

Shearinglineandrollingmillshouldbearrangedinastraightline,butmaybefoldback

typeiflimitedbygenerallayoutandprojectsite.Thespanofcoolingbedbayandshearbayshall

bedefinedaccordin人人文庫gtotheconfigurationofcoolingbedandshearinglineequipment.

3

Bufferstorageareashallmeetallkindsofrequirementsforbufferstorageofsteelplate.

4

Multiplefinishedproductstoragesmaybearrangedaccordingtoprocessflowandgeneral

layout;thelayoutoffinishedproductsstorage,platetransportmeansinandoutofthestorageand

thearrangementofcraneinfinishedproductstorageshallensurelogisticspaceofthetransport

meansinandoutofthestorage.

5

Incaseofrailwayasthemaintransportmeans,finishedproductbayshouldbearrangedin

parallelwiththerollingmillbay;incaseoftrucktransport,finishedproductsbayshouldbe

arrangedinverticaltotherollingmillbay;thestoragetimeoffinishedproductsshouldbedesigned

for7days.Additionalfinishedproductstoragemaybeprovidedoutsidetheworkshopiffinished