Soldering yog ib qho tseem ceeb tshaj plaws ntawm cov txheej txheem hluav taws xob sib dhos rau pcb manufacturers.Yog tias tsis muaj kev lees paub zoo ntawm cov txheej txheem soldering, txhua yam khoom siv hluav taws xob tsim tau zoo yuav nyuaj rau kev ua tiav cov hom phiaj tsim.Yog li ntawd, thaum lub sij hawm vuam, cov haujlwm hauv qab no yuav tsum tau ua:
1. Txawm tias qhov weldability zoo, qhov vuam nto yuav tsum tau ua kom huv si.
Vim yog kev cia ntev ntev thiab muaj kuab paug, cov yeeb yaj kiab oxide tsis zoo, cov roj stains, thiab lwm yam tuaj yeem ua rau saum npoo ntawm cov ntaub so ntswg.Yog li ntawd, qhov saum npoo yuav tsum tau ntxuav ua ntej vuam, txwv tsis pub nws yog ib qho nyuaj rau lav qhov zoo.
2. Qhov kub thiab lub sij hawm ntawm vuam yuav tsum tsim nyog.
Thaum lub solder yog ib yam, lub solder thiab solder hlau yog rhuab rau soldering kub kom lub molten solder soaks thiab diffuses mus rau saum npoo ntawm cov hlau solder thiab tsim ib tug hlau compound.Yog li ntawd, txhawm rau kom ntseeg tau tias muaj kev sib koom ua ke muaj zog, nws yog ib qho tsim nyog yuav tsum muaj qhov tsim nyog soldering kub.Ntawm qhov kub siab txaus, lub tshuab tuaj yeem wetted thiab diffused los ua ib txheej hlau.Qhov kub yog siab dhau rau soldering.Soldering lub sij hawm muaj kev cuam tshuam zoo rau lub solder, lub wettability ntawm cov khoom soldered thiab tsim ntawm daim ntawv cog lus txheej.Kev paub zoo lub sijhawm vuam yog tus yuam sij rau kev vuam zoo.
3. Cov pob qij txha yuav tsum muaj lub zog txhua yam txaus.
Txhawm rau kom ntseeg tau tias cov khoom siv welded yuav tsis poob thiab loosen nyob rau hauv kev co lossis kev cuam tshuam, nws yog ib qho tsim nyog yuav tsum muaj lub zog txaus ntawm cov pob qij txha.Txhawm rau ua kom cov pob qij txha muaj zog txaus, txoj kev khoov cov hlau lead terminals feem ntau tuaj yeem siv tau, tab sis cov khoom siv ntau dhau yuav tsum tsis txhob muab khaws cia, uas yuav ua rau luv luv ntawm cov khoom siv hluav taws xob thiab luv luv.solder pob qij txha thiab solder pob qij txha.
4. Vuam yuav tsum txhim khu kev qha thiab xyuas kom muaj hluav taws xob conductivity.
Txhawm rau ua kom cov pob qij txha muaj qhov ua tau zoo, nws yog ib qho tsim nyog los tiv thaiv cov khoom cuav.Vuam txhais tau hais tias tsis muaj cov qauv hlau ntawm cov hlau thiab cov hlau nplaum, tab sis tsuas yog ua raws li cov hlau nplaum.Nyob rau hauv vuam, yog tias tsuas yog ib feem ntawm cov alloy yog tsim thiab tus so yog tsis tsim, lub solder sib koom ua ke kuj kis tau tam sim no nyob rau hauv ib tug luv luv lub sij hawm, thiab nws yog ib qho nyuaj rau nrhiav tau cov teeb meem nrog lub ntsuas.Txawm li cas los xij, raws li lub sijhawm dhau mus, qhov chaw uas tsis tsim cov hlau yuav raug oxidized, uas yuav ua rau lub sijhawm qhib thiab tawg, uas yuav ua rau muaj teeb meem zoo ntawm cov khoom.
Nyob rau hauv luv luv, ib tug zoo zoo solder sib koom yuav tsum yog: lub solder sib koom yog kaj thiab du;cov txheej txheej yog sib xws, nyias, haum rau qhov loj ntawm lub ncoo, thiab cov txheej txheem ntawm kev sib koom ua ke yog qhov muag plooj;lub solder yog txaus thiab kis mus rau hauv cov duab ntawm ib daim tiab;tsis muaj kab nrib pleb, pinholes, Tsis muaj flux residue.
Post lub sij hawm: Mar-21-2023