HauvPCBKev sib dhos thiab cov txheej txheem soldering, SMT nti ua cov chaw tsim khoom muaj ntau tus neeg ua haujlwm lossis cov neeg siv khoom koom nrog hauv kev ua haujlwm, xws li plug-in insertion, ICT testing, PCB splitting, phau ntawv PCB soldering, ntsia hlau mounting, rivet mounting, crimp connector phau ntawv nias, PCB cycling, thiab lwm yam, kev ua haujlwm feem ntau yog ib tus neeg tuaj tos lub rooj tsavxwm nrog ib txhais tes, uas yog ib qho tseem ceeb ntawm kev ua tsis tiav ntawm BGA thiab chip capacitors. Yog li vim li cas qhov no ua rau muaj kev ua haujlwm tsis zoo? Cia peb tus editor piav qhia rau koj hnub no!
Cov phom sij ntawm tuav lubPCBboard nrog ib txhais tes:
(1) Tuav lub rooj tsavxwm PCB nrog ib txhais tes yog feem ntau tso cai rau cov Circuit Court boards nrog me me, lub teeb yuag, tsis muaj BGA thiab tsis muaj peev xwm nti; tab sis rau cov circuits uas loj loj, hnyav hnyav, BGA thiab nti capacitors ntawm sab boards, uas yuav tsum tau zam. Vim tias qhov kev coj cwj pwm no tuaj yeem yooj yim ua rau cov pob qij txha ntawm BGA, nti capacitance thiab txawm tias nti tsis kam. Yog li ntawd, nyob rau hauv cov ntaub ntawv txheej txheem, yuav tsum tau qhia rau yuav ua li cas coj lub Circuit Court board.
Qhov yooj yim tshaj plaws ntawm kev tuav lub PCB nrog ib txhais tes yog cov txheej txheem ntawm lub voj voog Circuit Court. Txawm hais tias tshem lub rooj tsavxwm los ntawm txoj siv conveyor lossis muab lub rooj tsavxwm, cov neeg feem coob tsis nco qab txais kev coj ua ntawm kev tuav lub PCB nrog ib txhais tes vim nws yog qhov yooj yim tshaj plaws. Thaum tes soldering, muab tshuaj txhuam lub radiator thiab nruab cov ntsia hlau. Txhawm rau ua kom tiav ib qho haujlwm, koj yuav siv ib txhais tes los ua lwm yam haujlwm ntawm lub rooj tsavxwm. Cov haujlwm zoo li no feem ntau zais qhov txaus ntshai loj heev.
(2) Nruab screws. Hauv ntau SMT nti ua cov chaw tsim khoom, txhawm rau txuag cov nqi, cov cuab yeej raug tshem tawm. Thaum cov ntsia hlau ntsia rau ntawm PCBA, cov khoom nyob rau sab nraum qab ntawm PCBA feem ntau deformed vim qhov tsis sib xws, thiab nws yog ib qho yooj yim rau tawg cov kev ntxhov siab-sensitive solder pob qij txha.
(3) Ntxig los ntawm lub qhov
Los ntawm-lub qhov Cheebtsam, tshwj xeeb tshaj yog transformers nrog tuab leads, yog feem ntau nyuaj rau raug muab tso rau hauv lub mounting qhov vim lub loj txoj hauj lwm kam rau ua ntawm cov leads. Cov neeg ua haujlwm yuav tsis sim nrhiav txoj hauv kev kom raug, feem ntau yog siv cov xovxwm nruj-hauv kev ua haujlwm, uas yuav ua rau khoov thiab deformation ntawm PCB pawg thawj coj saib, thiab tseem yuav ua rau muaj kev puas tsuaj rau cov chip capacitors, resistors, thiab BGA.