1、BRITISH STANDARD BS EN 10244-4:2001 Steel wire and wire products Non-ferrous metallic coatings on steel wire Part 4: Tin coatings The European Standard EN 10244-4:2001 has the status of a British Standard ICS 25.220.40; 77.140.65 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
2、BS EN 10244-4:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2001 BSI 05-2001 ISBN 0 580 37144 1 National foreword This British Standard is the offi
3、cial English language version of EN 10244-4:2001. The UK participation in its preparation was entrusted to Technical Committee ISE/26, Steel wire, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The
4、British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Br
5、itish Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present
6、 to the responsible 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 cove
7、r, the EN title page, pages 2 to 7 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 EN102444 March2001 ICS25.220.40;77.140.70 Engli
8、shversion SteelwireandwireproductsNonferrousmetalliccoatingson steelwirePart4:Tincoatings FilsetproduitstrfilsenacierRevtementsmtalliques nonferreuxsurfilsdacierPartie4:Revtementsdtain StahldrahtundDrahterzeugnisseberzgeaus NichteisenmetallaufStahldrahtTeil4:berzgeausZinn ThisEuropeanStandardwasappr
9、ovedbyCENon21January2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtoth
10、eManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenation
11、alstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:
12、ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN102444:2001EPage2 EN102444:2001 Contents Page Foreword .3 1 Scope4 2 Normativereference. .4 3 Termanddefinition. 4 4 Requirementsrelatingtocoating4 4.1 Material.4 4.2
13、Massofcoating . 4 4.3 Generalrequirements .4 4.4 Porosity 5 5 Testconditions. .5 5.1 Samples5 5.1.1 General .5 5.1.2 Lengthofsamples. 5 5.2 Determinationofmassofcoating .5 5.2.1 General .5 5.2.2 Procedure.6 5.2.3 Calculationofmassofcoating 6 5.3 Porosity 6 5.4 Adherencetest 7Page3 EN102444:2001 Fore
14、word ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeECISS/TC30“Steelwires“,the secretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsement,atthelatestbySeptember2001,andconflictingnationalstandards shallbewi
15、thdrawnatthelatestbySeptember2001. ThisEuropeanStandardfornonferrousmetalliccoatingonsteelwireismadeupofthefollowing parts: Part1:Generalprinciples Part2:Zincandzincalloycoatings Part3:Aluminiumcoatings Part4:Tincoatings Part5:Nickelcoatings Part6:Copper,bronzeandbrasscoatings AccordingtotheCEN/CENE
16、LECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg, Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.Page4
17、 EN102444:2001 1Scope ThispartofthisEuropeanStandardspecifiestherequirementsforthemass,otherpropertiesand testingoftincoatingsonsteelwireandsteelwireproductsofroundorothercrosssection. 2 Normativereference ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromother publications.The
18、senormativereferencesarecitedattheappropriateplacesinthetextandthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofany ofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentor revision.Forundatedreferencesthelatesteditionofthepublicatio
19、nreferredtoapplies(including amendments). EN102441,SteelwireandwireproductsNonferrousmetalliccoatingsonsteelwire Part1:Generalprinciples 3 Termanddefinition ForthepurposesofthisEuropeanstandardthefollowingtermanddefinitionapply. 3.1 wirewithtincoating wiretowhichatincoatinghasbeenappliedbyhotdipping
20、orbyanelectrolyticprocedureItdoesnot applytothecoatingprocedurebyionexchange,whichonlyproducesaveryfineporouscoatingwith anirregulardegreeofpurity 4 Requirementsrelatingtocoating 4.1Material Forhotdiptinning,theingotmaterialusedshallbepuretin. Thepermissibleimpuritylevelshallbelessthan0,5%. Coatinga
21、ppliedbyanelectrolyticprocedureshallcontainminimum99%oftin. 4.2 Massofcoating Thecoatingmass,whenrequired,shallbeagreedatthetimeofenquiryandorderoraccordingtothe productstandard. 4.3 Generalrequirements SeerequirementsinEN102441.Page5 EN102444:2001 4.4Porosity Iftheorderspecificationsrequireit,atest
22、maybecarriedouttoestablishthepresenceofsmallareas ofporosityinthecoating.Inthiscaseporositydoesnotmeanadegreeofsurfaceroughnessbut extremelyfinediscontinuitesinthecoatinggivingdirectaccesstothebasemetal. Thetestconditionsandacceptancecriteriashallbedefinedatthetimeoftheinvitationtotenderor theorder.
23、 5Test conditions 5.1Samples 5.1.1General SeethegeneralrequirementsinEN102441. 5.1.2 Lengthofsamples Thelengthofthesamplesshallbesufficienttoallowthevariousteststobecarriedout. 5.2 Determinationofmassofcoating 5.2.1General Themassofthecoatingshallbedeterminedusingthegravimetricmethod.Thesamplelength
24、 necessarytodeterminethemassofcoatingshallbeinaccordancewithTable1.Page6 EN102444:2001 Table1Lengthofsamples diameterofwire d(mm) length(mm) 0,08 d 3000 0,15 d 2000 0,30 d 1000 0,60 d 500 1,00 d 200 2,50 d 100 5.2.2Procedure Ifnecessary,degreasethesamplewithasuitablesolvent.Weighthesampletoanaccurac
25、yof 0,1mg. Stripthetinofthesamplesbydippinginthestrippingsolution. Thestrippingsolutionisobtainedbyadding12,5gSbCl 3 to250mlHCl(18Be)and250ml demineralizedwater. Whenthegasevolutionisceased,removethesamplesfromthestrippingsolution,rinseunder runningwater,dryandweighonceagaintoanaccuracyof0,1mg.Ifthe
26、massdifferenceislessthan 10mg,repeatthetestwithasampleofdoublethelength. Determinethedimensionofthewire. 5.2.3 Calculationofmassofcoating ThemassshallbecalculatedinaccordancewithEN102441. 5.3Porosity Theacceptableporosityshallbeagreedatthetimeofenquiryandorder.Theporosityofthetin coatinglayershallbe
27、evaluatedqualitivelybyoneofthefollowingmethods: METHOD1 Bendsamplesofwireatleast30cmlongintoaUshape,thoroughlydegreaseanddryandthen immersetoatleast10cminthefollowingsolution. 100ml5,0%NH 4 SCNanalyticalpurity 100ml2,5%CH 3 COOhanalyticalpurity 50ml0,3%H 2 O 2 Removethesamplesfromthesolutionafter1mi
28、nute.Areasofporosityareshownbytheappearance ofaredcolour.Page7 EN102444:2001 METHOD2 Analternativemethodconsistsofimmersingthesamewiresamplesinthefollowingsolution. HydrogenperoxideH 2 O 2 20ml SodiumchlorideNaCl30g PotassiumferricyanideK 4 Fe(CN) 6 .3H 2 O10g Makeupto1litrewithdemineralizedwater. R
29、inseundercoldwaterandwipedry.Immersethesampleagaininthetestsolutionandrepeatthe operation. Examinethesampletoestablishthepresenceofbluecolouredareasonthesurface(examination withnakedeyeshallgenerallybesufficient). Thebluecolouredareasindicateporosityinthetincoating. 5.4Adherence test Withregardtoadh
30、erence,thewrappingtestshallbecarriedoutaroundtheactualdiameterofthe wireinsofarastheductilityofthebasematerialpermitsthis.Ifitisnotthecase,theconditionsofthe wrappingtestshallbeagreedbetweentheparties.BS EN 10244-4:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI i
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