1、BRITISH STANDARD BS EN ISO 17652-2:2003 Welding Test for shop primers in relation to welding and allied processes Part 2: Welding properties of shop primers The European Standard EN ISO 17652-2:2003 has the status of a British Standard ICS 25.160.10 BS EN ISO 17652-2:2003 This British Standard was p
2、ublished under the authority of the Standards Policy and Strategy Committee on 22 May 2003 BSI 22 May 2003 ISBN 0 580 41916 9 National foreword This British Standard is the official English language version of EN ISO 17652-2:2003. It is identical with ISO 17652-2:2003. It supersedes BS 6084-1:1997 w
3、hich is withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEE/42, Prefabrication primers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards w
4、hich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO tit
7、le page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO176522 May2003 ICS25.160.10 Engl
8、ishversion WeldingTestforshopprimersinrelationtoweldingandallied processesPart2:Weldingpropertiesofshopprimers(ISO 176522:2003) SoudageEssaisurpeinturesprimairesenrelationavecle soudageetlestechniquesconnexesPartie2:Proprits relativesausoudagedespeinturesprimaires(ISO17652 2:2003) SchweienPrfungvonF
9、ertigungsbeschichtungenfr dasSchweienundfrverwandteProzesseTeil2: SchweieigenschaftenvonFertigungsbeschichtungen(ISO 176522:2003) ThisEuropeanStandardwasapprovedbyCENon2January2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Stand
10、ardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra
11、nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlan
12、ds,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMemb
13、ers. Ref.No.ENISO176522:2003EENISO176522:2003(E) 2 Contents page Foreword. 3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. 5 4 Ratingtest. . 5 4.1 Principle . 5 4.2 Preparationoftestpiece . . 5 4.3 Procedure. 5 4.3.1 Welding 5 4.3.2 Breakingofthetestweld . 7 4.4 Examinationanddeterminatio
14、nofporosity. 7 4.5 Testreport. . 8 5 Weldabilitytest 8 5.1 Principle . 8 5.2 Preparationoftestpiece . . 8 5.3 Procedure. 9 5.3.1 General . 9 5.3.2 Tackwelding. 9 5.3.3 Welding 10 5.4 Weldevaluation. 10 5.4.1 Visualexamination 10 5.4.2 Internalexamination . 11 5.5 Testreport. . 11 AnnexA (informative
15、) Exampleofatestreportforratingtestofweldpropertiesofshopprimers 13 AnnexZA (informative) CorrespondingInternationalandEuropeanStandardsforwhichequivalents arenotgiveninthetext 14ENISO176522:2003(E) 3 Foreword Thisdocument(ENISO176522:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC121“Welding“,the se
16、cretariatofwhichisheldbyDS,incollaborationwithTechnicalCommitteeISO/TC44“Weldingandallied processes”. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyNovember2003,andconflictingnationalstandardsshallbewithdrawnatthelatest
17、 byNovember2003. ENISO17652consistsofthefollowingparts,underthegeneraltitle: WeldingTestforshopprimersinrelationto weldingandalliedprocesses: Part1:Generalrequirements Part2:Weldingpropertiesofshopprimers Part3:Thermalcutting Part4:Emissionoffumesandgases AnnexesAandZAareinformative. AccordingtotheC
18、EN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,Switze
19、rlandandtheUnitedKingdom.ENISO176522:2003(E) 4 1 Scope ThispartofthisEuropeanStandarddescribestestsforassessingtheinfluenceofshopprimersontheweldability. Thefollowingtestsaredetailed: a) Ratingtest Thisscreeningtestprovidesamethodofassessingtherelativeweldabilityofashopprimerofaspecifiedthickness by
20、makingastandardweldandsubsequentlyevaluatingtheseverityoftheresultingporosity.Ratingtestsare suitablefordeclarationbysuppliersoftheinfluenceofparticularshopprimersandsimilarpurposes; b) Weldabilitytest Thistestdescribesamethodforevaluatingtheweldabilityofweldingconsumablesandshopprimercombinations,
21、usingvariousarcweldingprocesses.Astandardsizefilletisproducedthatenablescomparisontobemade.An overallassessmentofthequalityoftheresultantweldismade.Weldabilitytestsmaybemorecloselyrelatedto actualconditionsduringproduction. Forprecautionforprotectionofhealth,safetyandenvironmentduringtesting,seeENIS
22、O176521. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublications
23、applytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN439, WeldingconsumablesShieldinggasesforarcweldingandcutting. EN440, WeldingconsumablesWireelectrodesanddepositsforgasshieldedmetal
24、arcweldingofnonalloyand finegrainsteelsClassification. EN10025:1990, Hotrolledproductsofnonalloystructuralsteels Technicaldeliveryconditions. EN10238, Automaticallyblastcleanedandautomaticallyprefabricatedprimedstructuralsteelproducts. EN10278, Dimensionsandtolerancesofbrightsteelproducts. ENISO4063
25、 Weldingandalliedprocesses Nomenclatureofprocessesandreferencenumbers(ISO 4063:1998). ENISO6947, WeldsWorkingpositionsDefinitionsofanglesofslopeandrotation(ISO6947:1993) . ENISO2808, PaintsandvarnishesDeterminationoffilmthickness(ISO2808:1999). ENISO85011:2001 ,Preparationofsteelsubstratesbeforeapp
26、licationofpaintsandrelatedproductsVisual assessmentofsurfacecleanlinessPart1:Rustgradesandpreparationgradesofuncoatedsteelsubstratesandof steelsubstratesafteroverallremovalofpreviouscoatings(ISO85011:1988). prENISO156091:2000,SpecificationandapprovalofweldingproceduresformetallicmaterialsWelding pro
27、cedurespecificationPart1:Arcwelding(ISO/DIS156091:2000). ENISO176521:2003, WeldingTestforshopprimersinrelationtoweldingandalliedprocessesPart1:General requirements(ISO176521:2003).ENISO176522:2003(E) 5 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsinENISO176521:200
28、3apply. 4 Ratingtest 4.1 Principle Thistestprovidesamethodofassessingtherelativeweldabilityofshopprimersofaspecifiedthicknessbymaking astandardweldoverarangeofshopprimersandsubsequentlyevaluatingtheseverityoftheresultingporosity. Onlyoneweldingprocedureisprescribed,usingmetalactivegaswelding(process
29、135inaccordancewith ENISO4063). Thejointconfigurationandclosefituparedesignedtogivesignificantlevelsofporosityforreasonsof differentiationandreproducibility. Thestandarddoesnotspecifylimitsforacceptabilityasthesedependonthepracticalapplication.Itisexpected thatlevelsofporosityduringpracticalapplicat
30、ionswillbelowerthanthelevelsmeasuredduringtesting. 4.2 Preparationoftestpiece 10testpiecesshallbepreparedforeachshopprimer.Eachpieceshallconsistoftwobrightdrawnmildsteelplates inaccordancewithEN10278. Thedimensionsofthetestpiecesareasfollows: 20 mm 80mm 200mm; 12 mm 50mm 200mm. Thepartsshallhavesmoo
31、th,flat,undamagedsurfaces,andanyburrsontheedgesshallberemovedtoensurea goodfitup. Bothcomponentsshallbedegreasedandthelargercomponentshallbecoatedononesidewithshopprimerprior totesting.Thethicknessoftheshopprimershallbeuniformandinaccordancewiththesuppliersrecommendation. Unlessotherwisespecified,th
32、especimenscanbeweldedafteradryingperiodofatleast10daysatasurface temperatureabove10 o Cbutbelow40 o Candataminimumairhumidityof50%.Alternativeconditionsforstorage shallbemonitoredandreportedinthetestreport. Thethicknessshallbechecked,e.g.byuseofsmallsmoothsteelplatesorglassplates,seealsoENISO2808. N
33、OTE Forprotectionoftheenvironmentthedegreasingofthetestpiecesshouldbedonebyimmersingtheminnoncycle hydrocarbon,aqueoscleaningagentsorequivalentnonhalogenatedorhalogenfreeorganicdegreasingagent. 4.3 Procedure 4.3.1 Welding Thespecimensshallbeclampedinahydraulicviceovertheirentirelength,theclampingfor
34、ceamountingto10kN 5%,seeFigure1.Atthepointindicatedsoftannealedcopperwiresof2mmdiametershouldbeinserted.The viceshallbetiltedtoanangleof45 o sothatweldingcanproceedintheweldingpositionPAinaccordancewithEN ISO6947.WeldingparametersshallbeasstatedinTable1.ENISO176522:2003(E) 6 Table1Ratingtestweldingp
35、arameters Parameter Value Weldingprocess 135,seeENISO4063 Current 250A 5% Voltage 30V 5% Weldingspeed 300mm/min 5% Shieldinggas C1: 100% CO 2, seeEN 439 Gasflowrate 15l/minto20l/min Gascupdiameter 16mmto19mm Stickout 18mmto20mm Consumable,type G3Si1,seeEN440 Consumable,diameter 1,2mm Polarity +onele
36、ctrode Alldimensionsin millimetres Key AHorizontalaxisduringwelding BPrimedsurface CSoftannealedcopperwires 2mm DWeldseambreakageangle EBrightdrawnsteelplate(20 80 200) FBrightdrawnsteelplate(12 50 200) GHydraulicclamps,10kN Figure1ArrangementoftestpiecesinratingtestENISO176522:2003(E) 7 4.3.2 Break
37、ingofthetestweld BreakopenthetestweldusingthreepointloadingasshowninFigure2.Rejectthesampleifthefracturedoesnot bisecttheweldjoint. Theweldshallbebrokenatatemperatureofapproximately150 o Cto250 o Csothattheporeboundariesareclearly visible. Key AThreepointloading Figure2 Breakingofthetestweld NOTE Th
38、eweldcanusuallybebrokenwithoutprenotchingasshowninFigure2.Incasethefracturedoesnotoccur,the bisectingangleoftheweldprenotchingbysawingasshowninFigure2shouldbeused. 4.4 Examinationanddeterminationofporosity Donottakeintoconsiderationporeswherethelargestdiameterislessthan0,5mm.Performtheevaluationata
39、magnificationinwhichporeslargerthan0,5mm(largestdiameter)canbemeasured.However,themagnification shallbenolessthan10times.Evaluatealengthof100mm,excluding60mmfromthestartand40mmfromthe endofthespecimen. Thefollowingshallbedeterminedandrecorded: thenumberofporeslargerthan0,5mm n; thetotalporeareadeter
40、mined F(mm 2 ); themeanareaofindividualpores F/n (mm 2 ). NOTE Areaofasingleporecanusuallybedeterminedfromameasurementofthelargestandsmallestdiameter, assuminganellipticalshape.ENISO176522:2003(E) 8 4.5 Testreport Areportshallbecompiledforeachtest,detailing,asaminimumthefollowing: a) thatthetesthasb
41、eencarriedoutinaccordancewiththisstandard; b) thecustomerandcontractnumber,ifappropriate; c) thetestingorganisation,ifappropriate; d) thelocationanddateoftest; e) anidentificationofthetestpiece(s); f) shopprimerdesignation; g) theweldingprocessandconsumables,asappropriate; h) thecoatingthicknessappl
42、ied(assupplied); i) thesurfaceconditionbeforewelding; j) theweldingparameters(WPSorotherdocumentreference); k) theweldevaluationcriteria; l) thenumberofporeslargerthan0,5mm n; m) thetotalporeareadetermined F(mm 2 ); n) themeanareaofindividualpores F/n(mm 2 ). AnnexAprovidesanexampleofatestreport. 5
43、Weldabilitytest 5.1 Principle Thistestdetailsconditionsforassessmentoftheweldabilityofashopprimercoatingonsteel,usingarcwelding processes. Theconditionsachievedbyapplyingaforceatspecifiedpositionsalongthejointresultinafilletjointwith“zero gap”.Itisconsideredthatthisresultsinporositylevelsarenotencounteredinpractice(unlesszerogapisspecified andachieved). However,bysettingconditionsknowntogive“worstcase”poreforma
