1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-501:2002 Elements of electrical and optical connection Test methods Part 501: Soft solderability The European Standard EN 2591-501:2002 has the status of a British Standard ICS 49.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWB
2、S EN 2591-501:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 8 July 2002 BSI 8 July 2002 ISBN 0 580 39956 7 National foreword This Britis
3、h Standard is the official English language version of EN 2591-501:2002. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace Connectors, which has the responsibility to: A list
4、 of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The 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 “Internati
5、onal Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British 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 Brit
6、ish Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present 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 dev
7、elopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments is
8、sued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN2591501 June2002 ICS49.060 Englishversion AerospaceseriesElementsofelectricalandopticalconnection TestmethodsPart501:Softsolderability SriearospatialeOrganesdeconnexionlectriqueet optiqueMthodesdessaisParti
9、e501:Brasagetendre LuftundRaumfahrtElektrischeundoptische VerbindungselementePrfverfahrenTeil501: Weichlten ThisEuropeanStandardwasapprovedbyCENon8February2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanation
10、alstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresp
11、onsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Swed
12、en,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN2591501:2002EEN2591501:200
13、2(E) 2 Foreword Thisdocument(EN2591501:2002)hasbeenpreparedbytheEuropeanAssociationofAerospace Manufacturers(AECMA). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECM
14、A,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyDecember2002,andconflictingnationalstandardsshallbe withdrawnatthelatestbyDecember2002. AccordingtotheCEN/CENELECInternalRegulations,thenation
15、alstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway, Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdomEN2591501:2002(E) 3 1 Scope This
16、standardspecifiesmethodsofverifyingthesolderabilityofelectricalmaleandfemalecontactstobe solderedinelementsofconnectionandofcontactswithselfcontainedsolderandfluxnotaccessibletoa solderiron. ItshallbeusedtogetherwithEN2591100. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedref
17、erenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundated
18、referencesthe latesteditionofthepublicationreferredtoapplies. EN2591100 AerospaceseriesElementsofelectricalandopticalconnectionTestmethods Part100:General 1) EN2591101 AerospaceseriesElementsofelectricalandopticalconnectionTestmethods Part101:Visualexamination 3 Preparationofspecimens 3.1 Thebarrels
19、ofcontactstobesolderedshallbetestedintheirdeliveryconditionandshallnot sufferfromcontaminationsuchasfingermarks,tracesofgrease,etc. Ifthetechnicalspecificationrequires,thebarrelsofcontactstobesolderedmaybedegreasedbyimmersion atroomtemperatureinapHneutralorganicsolvent. 3.2 Unlessspecifiedinthetechn
20、icalspecification,thefollowingdetailsshallbestated: cleaningmethod(ifapplicable); applicationtimeofbitifdifferentfromthatprovidedinthistest; contactareawherethetestshallbecarriedout; initialmeasurement(ifapplicable); finalmeasurementandrequirement; differentsizeofironandsolderwireaccordingtothesizeo
21、ftermination. 4 Apparatus 4.1 Solderiron Temperatureofbit:(350 10 )C(startoftest) Diameterofbit:3mm Lengthexposed:12mmreducingtoanedgeoveralengthofapproximately5mm Inaccordancewithnormalpractice,thebitshallbemadeofcopper,preferablywithasteelplating,ora copperalloyresistanttoerosion,andshallbetinplat
22、edoverthewholeareausedtocarryoutthetest. 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN2591501:2002(E) 4 4.2 Alloyandflux Thealloyshallbeintheformofawire0,8mmindiameterandshallhaveoneormorechannelscontaining 2,5%to3,5%offluxinrelationtothetotalweight. 4.2.1 Thealloyshallmeetthe
23、followingconditions: chemicalcomposition; a) tin:59%to61%; b) antimony:0,5%max.; c) copper:0,1%max.; d) arsenic:0,05%max.; e) iron:0,02%max.; f) lead:remainderto100%. meltingproperties; a) solidus:183C; b) liquidus:188C. Thealloyshallnotcontainanyimpuritiessuchasaluminium,zincorcadmiuminquantitieswh
24、ichwould significantlyaffectthepropertiesofthesolder. 4.2.2 Thefluxshallmeetthefollowingconditions: rosin(colophony); a) colour:colourWWorpaler; b) acidity(mgKOH/gofrosin):155min.; c) softeningpoint(ringandball):70Cmin.; d) meltingpoint:76Cmin.; e) ashcontent:0,05%max.; f) solubility:asolutionofequa
25、lpartsofrosinandpropanol2shallbeclearandhavenodepositsafter 7datnormaltemperature; propanol2; a) purity:propanol2byweight:95%min.; b) acidityasaceticacid(otherthancarbonmonoxide):0,002%max.inmass; c) nonvolatileresidues:20mg/dm 3 max 5 Methods 5.1 MethodA:solderabilityofcontactswithasolderiron 5.1.1
26、 Initialmeasurement (ifapplicable) Ifthistestiscarriedoutseparatelyfromaseriesoftests,thespecimensshallbesubjectedtopreconditioning of4hinsteam.EN2591501:2002(E) 5 5.1.2 Numberofcontactstobetested(fornonremovablecontacts) Seetable1. Table1 Numberofcontactsofthesamesize inanelementofconnection:N Mini
27、mumnumbertobetested % N 5 5 130 100 25 a 10 a 5 a a Theresultshallberoundeduptothenextfullnumber. 5.1.3 Procedure a) Preconditionning(ifrequired,see5.1.1) Thecontactsshallbesuspendedverticallysothattheareatobetestedislocatedbetween25mmand 30mmabovethesurfaceofboilingdistilledwater.Thisshallbecontain
28、edinaglassorsteelvesselof suitablesize,thirdquartersclosedbyaplate.Thespecimenholdershallnotbemetal. b) Solderingtest Thebarrelsofthecontactstobesolderedarepositionedsothatthesolderironbitcanbeapplied horizontally,asshowninfigure1or2. Figure1Contactwithoutsolderbucket Ifmechanicalsupportsarenecessar
29、ytocarryoutthetest,theyshallbemadefrommaterialswhicharenon conductorsofheat. Unlessotherwisespecified,thesolderironbitandthefluxwireinsideshallbeappliedonthebarrelfor2sto 3s,atthepointindicatedinthetechnicalspecification.Duringthattimethebitshallremainstill. Afterthetest,thefluxresiduesshallberemove
30、dwithasolvent.EN2591501:2002(E) 6 5.1.4 Finalmeasurementandrequirement EN2591101underadequatelighting,withthenakedeyeorwithamaximummagnification 4.Thealloy shallwetthetestsurfaceandthereshallbenodropletspresent. 5.2 MethodB 5.2.1 Procedure Applyheatasrecommendedintheinstallationprocedure,exceptnosol
31、derwireisintroducedinthecontact. 5.2.2 Finalmeasurementandrequirement EN2591101withthenakedeyeorwithamaximummagnification 4.Thesoldershallwetthecontactarea andformarelativelyuniformfilmadherenttothebasematerial. Itmaybenecessarytocarefullycutopenthecontacttocheckthesolderarea. Testsurface: insideofs
32、olderbucket; outsideforotherterminations. Figure2ContactwithsolderbucketBS EN 2591-501:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and
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