Lead-freeeramakeswhetherneednitrogeninreflowahottopic. Raws li cov coj-freesolderflowresistance, wettabilityisnotasgoodasleadsolder, tshwj xeeb yog cov qhabnias cov khoom noj khoom haus lub cev muaj zog (organicprotectivefilmbarecopper), thepadiseasilyoxidized, feem ntaucausedproblemsthatsolderwettingangleistoolarideexposedandcopperpadphenomen.
Althoughanumberofelectronicsmanufacturersforoperatingcostsconsiderationisnottempoorusingnitrogen, butwiththecontinuousimprovementofthequalityrequirementsoflead-freesoldering, theuseofnitrogenwillbecomemoreandmorecommon.Soabetterchductionisalthoughactualproductionitrog txiaj ntsig sib cuam tshuam kev sib txuas lus
• Theuseofnitrogenreflow
Inordertoimprovethequalityofsolderjoints, qee zaumweneedtousethenitrogenreflow.Nitrogenisaninertprotectivegas, itcanprotectcircuitboardpadfromoxidizinginthewelding, Itplaysasignificantimprovingeffecttoimprovetheweldofoflead-freesolder.
Nrog kev tiv thaiv kev ua haujlwm ntau ntau cov ntsiab lus tsis sib haum xeeb (Finepitch) sib dhos ua ke, tom qab ntawd cov phiaj xwm txiaj ntsig tsis sib haum xeeb txog qhov cuam tshuam qhov tsis sib haum xeeb.
(1) cov tshuaj tiv thaiv sab saum toj
(2) txhim kho khoom siv kho mob
(3) reducethegenerationofthesolderballs, toavoidbridgingtoobtaingtoj zoo
Getbetterweldingqualityisparticularlyimportantandcanusealower-activityfluxpaste, butalsocanimprovetheperformanceofthejoints, toreducethediscolorationofthesubstrate, butitsdisadvantageisthesignificantcostincrease, costincreaseswiththeamountofnitrogen, whenyouneedfurnace1000ppmoxygencontentof50ppmoxygencontent, thedemandfornitrogenisaworldofdifference.Pastemanufacturersarecommittedtothedevelopmentthatcanbecarriedoutinthehigheroxygencontentoftheatmosphereagoodsolderno-cleansolderpaste, sothatyoucanreducetheconsumptionofnitrogen.
Introductionofnitrogenreflow, tus nqi-txiaj ntsig kev pab tswvyim kev tiv thaiv kev ua haujlwm, nws txoj kev tsim khoom ntawm kev ua haujlwm, kev ua kom zoo dua qub, kev txo qis, ua kom zoo dua qub, thiab lwm yam.
Tam sim no feem ntau ntawm qhov cub tau yuam kom muaj cua kub mus ntxiv.Nws tsis yooj yim los tswj kev noj nitrogen. Muaj ob peb txoj hauv kev los txo qhov noj nqos tau cov pa nitrogen thiab lub cub tawg ua kom tiav thiab tawm thaj chaw qhib, qhov tseem ceeb heev yog siv cov khoom sib cais, kaw los yog cov khoom siv zoo ib yam los cais qhov ntawd, thiab lwm txoj hauv kev yog siv qhov kev tshawb xav tias kub nitrogen txheej yog sib dua tshaj li huab cua thiab nyuaj sib xyaw, thaum tsim qauv ntawm lub cub tawg kom lub cua sov ua kom sov dua siab dua ntawm kev ntshuam thiab tsim tawm ntuj nitrogen txheej. lub tso cua sov, txo cov nqi them ntawm nitrogen thiab txij nkawm nyob rau hauv purity raws.
Kab lus thiab daim duab ntawm Is Taws Nem, yog tias muaj ib qho dab tsi pls hu rau peb ua ntej.
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