Hauv PCBa ua tiav, kev siv vuam zoo ntawm Circuit Court Board tau muaj kev cuam tshuam zoo rau kev ua tau zoo thiab pom ntawm Circuit Courcuit Board. Yog li ntawd, nws yog ib qho tseem ceeb heev los tswj lub vuam zoo ntawm PCB Circuit Co Board.PCB Circuit Courcuit BoardVuam zoo yog ze ze rau Circuit Court board tsim qauv, cov ntaub ntawv, vuam thev naus laus zis thiab lwm yam.
, Kev tsim qauv ntawm PCB Circuit Court
1. Ncoo tsim
(1) Thaum tsim cov ntaub qhwv ntawm cov ntsaws cov ntsaws cov ntsaws cov khoom siv, cov ncoo loj yuav tsum tsim kom muaj nqis zog. Yog tias lub ncoo loj heev, cov hlua sib kis thaj chaw yog qhov loj, thiab cov pob qij yas hards tsis puv. Ntawm qhov tod tes, qhov nro ntawm tooj liab ntawv los ntawm cov ntaub me me yog qhov me me, thiab cov pob qij txha sib dhos yog cov pob zeb uas tsis ntub cov pob qij txha tsis-ntub cov pob qij txha ncaws pob. Qhov sib txuam sib txuam ntawm lub aperture thiab cov khoom ua haujlwm ua tau loj heev thiab nws yog qhov yooj yim rau kev ua rau tsis muaj dab tsi soldering. Thaum lub aperture yog 0.05 - 0.2 hli dav dua li cov hmoov txhuas yog 2 - 2.5 zaug lub aperture, nws yog qhov kev mob zoo tshaj plaws rau vuam.
(2) Thaum tsim cov ntaub qhwv ntawm nti, cov ntsiab lus hauv qab no yuav tsum tau txiav txim siab tias: Txhawm rau kom muaj kev sib cuag ntawm lub ntsej muag Txo cov lus cuav thiab ploj lawm soldering. Cov Cheebtsam me dua yuav tsum tsis txhob muab tso rau tom qab cov khoom sib cuam tshuam loj los tiv thaiv cov hluav taws xob loj thiab tiv toj cov ntaub qhwv ntawm cov khoom me me, ua rau soldering xau.
2, PCB Circuit Coud Flagness tswj
Yoj hlau soldering muaj cov kev xav tau siab ntawm lub tiaj tiaj ntawm cov ntawv sau. Feem ntau, cov warpage yuav tsum muaj tsawg dua 0.5 hli. Yog tias nws yog tus loj dua 0.5 hli, nws yuav tsum tau ua kom tiaj. Tshwj xeeb, cov tuab ntawm qee cov ntawv luam tawm tsuas yog li 1.5mm, thiab lawv cov kev xav ua warpage yog siab dua. Txwv tsis pub, lub vuam ua tau zoo tsis tuaj yeem lav. Cov teeb meem hauv qab no yuav tsum tau them siab rau:
(1) Cov khw muag khoom kom zoo thiab cov khoom siv thiab ua kom luv rau lub sijhawm ntim kom ntau li ntau tau. Thaum lub sij hawm vuam, tooj liab ntawv ci thiab sib xyaw ua kom dawb ntawm hmoov av, roj, thiab oxides yog pab rau kev tsim cov pob qij txha tsim nyog. Yog li ntawd, cov ntawv luam tawm thiab cov khoom siv yuav tsum muab cia rau hauv qhov chaw qhuav. , nyob rau hauv ib qho chaw huv, thiab luv luv lub sijhawm ntim kom ntau li ntau tau.
(2) rau cov ntawv luam tawm uas tau muab tso rau ntev, sab nraud ntawm feem ntau xav tau ntxuav. Qhov no tuaj yeem txhim kho lub solderability thiab txo cov cuav soldering thiab bridging. Rau cov tshuaj tiv thaiv pins nrog qee qhov degree ntawm cov xim oxidation, lub npoo yuav tsum tau muab tshem tawm ua ntej. oxide txheej.
二. Kev Tswj Xyuas Zoo Ntawm Cov Txheej Txheem Cov Ntaub Ntawv
Hauv nthwv dej soldering, cov txheej txheem txheej txheem txheej txheem siv yog: flux thiab ham.
1. Daim ntawv thov ntawm flux tuaj yeem tshem tawm oxides los ntawm kev sib tw sib tw, txo cov nrhav kev sib tw, thiab pab hloov cua sov kom sov rau hauv qhov chaw vuam. Flux ua lub luag haujlwm tseem ceeb hauv kev tswj ntawm vuam zoo.
2. Kev tswj hwm zoo ntawm kev kub
Tin-Leading tes txuas ntxiv mus rau oxidize ntawm qhov kub thiab muaj teeb meem tsis zoo xws li squeating, tsis muaj dab tsi soldering soldering, khoob solder sib koom tes, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog siv dag zog, thiab tsis muaj zog Cov.
三, cov txheej txheem vuam parameter tswj
Cawv ntawm vuam txheej txheem tsis pom zoo ntawm vuam nto zoo yog qhov sib txawv.
Muaj ntau cov ntsiab lus tseem ceeb: 1. Tswj ntawm preheating kub. 2. Vuam khiav lub kaum sab xis. 3. Yoj lub siab tawv. 4. Kev kub siab.
Vuam yog ib qho txheej txheem tseem ceeb ntawm cov PCB Circuit Court Board cov txheej txheem ntau lawm. Txhawm rau kom ua kom cov vuam qhov zoo ntawm Circuit Court Board, ib qho yuav tsum tau ua tau zoo hauv kev tswj hwm zoo thiab kev txawj ntse.
