Brand:JIAJINYUAN/JJYScopeofapplicationApplicabletomobilephonesPCB,BGAandPGASuchasSMDTherepairfluxpasteViscosity:200(Pa·S)Activity:WeakactivitySpecification:100g/bottle
inSMTTherearemanyfactorsinsurfacemounttechnologythatcanaffectthefinalquality,suchasthequalityofsurfacemountcomponents.cThequalityofthesolderpadsonthecircuitboard,solderpaste,solderpasteprinting,theplacementaccuracyofthesurfacemountmachine,andtheadjustmentoftheoventemperaturecurveforreflowsoldering,etc.Thenamongthem,asSMTHowtochoosethemostcommonlyusedauxiliarymaterialsinsurfacemounttechnology(SMT),suchassolderpasteandflux?Now,ShenzhenJJYSolderPasteManufacturerwillexplain:First,distinguishtheproductpositioningandtreatthemdifferently1Theproducthasahighaddedvalue.......
inSMTSolderpasteisanindispensableprocessingmaterialinsurfacemounttechnology(SMT)processing.Solderpaste,alsoknownassolderpaste,ismainlyusedtoSMTThenewtypeofsolderingmaterialusedforsurfacemounttechnologyisgenerallyapastemixtureformedbythemixtureofsolderpowder,flux,andothersurfactants,thixotropicagents,etc.DifferentPCBADifferentsolderpasteswillbeusedinprocessingrequirements.So,whattypesofsolderpastesarethere?Below,ShenzhenJJYSolderPasteManufacturerwillbrieflysharewithyouthetypesofsolderpaste:1.Whetheritcontainsornot......
inPCBADuringthesolderpastesolderingprocess,duetotheinfluenceoffactorssuchassolderingmaterials,processes,andpersonnel,itmayleadtoPCBAThephenomenonofpoorsolderingisintroducedbyShenzhenJJYSolderPasteManufacturerasacommononePCBAPoorweldingphenomenon:1,PCBAThereistoomuchresidueontheboardsurfacePCBAExcessiveresidueontheboardmaybeduetoinsufficientpreheatingortoolowpreheatingtemperaturebeforesoldering,insufficienttemperatureofthesolderoven,toofastboardmovementspeed,additionofanti-oxidantandanti-oxidationoilinthesoldersolution,excessiveapplicationofflux,andcomponentfeet......
inSMTIntheproductionprocess,itisoftenencounteredthattheboardsproducedafterreflowsolderinghavesolderbeads.Theformationofsolderbeadsmakestheproductqualityunguaranteedandtheappearancenotsmooth.So,whatcausesreflowsolderingsolderbeadsandhowcanwesolveit?Next,ShenzhenJJYSolderPasteFactorywillexplaintoyou:Whatcausesreflowsolderingsolderbeads?Thereflowsolderingcurvecanbedividedinto4Thesectionsarerespectivelypreheating,holding,refluxandcoolingpreheatingandholding......
inSMTIntheproductionindustry,solderpasteisakindofsolderingmaterial.Itisapastesoldermadebyuniformlymixingalloypowder,pastefluxandothercarriers.However,intheactualoperationprocess,manyengineersandtechnicianshaveencounteredtheproblemthatsolderpasteispronetodryingout.Next,ShenzhenJJYSolderPasteManufacturerwilldiscusswithyouthereasonsforsolderpastedryingoutandthesolutions:1.Thereasonsforsolderpastedryingout1Lowenvironmentalhumidity:Thesolventsinsolderpaste(suchasalcohol)arepronetoevaporation,especially......
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