Uninzi lweebhodi zeesekethe esizisebenzisayo ziluhlaza? Kutheni kunjalo? Enyanisweni, iibhodi zesekethe ze-PCB azikho luhlaza. Kuxhomekeke kumbala onjani umyili ofuna ukuwenza.
Kwiimeko eziqhelekileyo, sikhetha uhlaza, ngenxa yokuba uhlaza luncinci emehlweni, kwaye abasebenzi bemveliso kunye nokugcinwa kwempahla abayi kuba nexhala lokukhathala kwamehlo xa bejonge kwimveliso yeebhodi zesekethe ze-pcb ixesha elide. Kuya kubangela umonakalo omncinci emehlweni. Imibala esetyenziswa ngokuqhelekileyo eluhlaza okwesibhakabhaka, emhlophe kunye nemfusa. , Mthubi, omnyama, obomvu, yonke imibala ipeyintwe kumphezulu emva kokuveliswa.
1. Izizathu zokusebenzisa uhlaza kwimveliso yeebhodi zeesekethe ze-pcb
(1) Ukwaziswa kwenkampani yasekhaya yokuvelisa ibhodi yesekethe ye-pcb: I-inki eluhlaza yeyona nto isetyenziswa kakhulu, inde kakhulu kwimbali, kwaye ixabisa kakhulu kwimarike yangoku, ngoko uhlaza lusetyenziswa linani elikhulu labavelisi njengemveliso yabo. Umbala ophambili.
(2) Phantsi kweemeko eziqhelekileyo, kwinkqubo yokuveliswa kwebhodi yesekethe yePCB, kukho iinkqubo ezininzi ekufuneka zidlule kwigumbi lokukhanya elityheli, kuba isiphumo sohlaza kwigumbi lokukhanya emthubi kufuneka sibe ngcono kuneminye imibala, kodwa oku akunjalo. kakhulu Esona sizathu siphambili. Xa i-soldering components kwi-SMT, ukuveliswa kweebhodi zesekethe ze-pcb kufuneka zihambe kwinkqubo ye-solder paste kunye nefilimu yeposi kunye nesibane sokugqibela se-AOI sokulinganisa. Ezi nkqubo zonke kufuneka zibekwe kwindawo ebonakalayo kwaye zilinganiswe. Umbala oluhlaza ongasemva unokuchonga isixhobo. ngcono.
2. Yiyiphi imibala eqhelekileyo kwimveliso yeebhodi zeesekethe ze-pcb
(1) Imibala yemveliso eqhelekileyo yeebhodi zesekethe ze-pcb zibomvu, zityheli, ziluhlaza, zibhlowu namnyama. Nangona kunjalo, ngenxa yeengxaki ezifana nenkqubo yokuvelisa, inkqubo yokuhlolwa komgangatho wemigca emininzi kusafuneka ixhomekeke kumehlo enyama abasebenzi ukuba baqwalasele kwaye bachonge (uninzi lwabo ngoku lisebenzisa itekhnoloji yokuvavanya i-flying probe). Amehlo ahlala ejonge ebhodini phantsi kokukhanya okunamandla. Le nkqubo idinisa kakhulu. Ukuthetha ngokuthelekisayo, uhlaza yeyona nto inobungozi emehlweni, ngoko ke uninzi lwabavelisi okwangoku basebenzisa iiPCB eziluhlaza kwintengiso.
(2) Ukwaziswa kwasekhaya abavelisi bebhodi yesekethe PCB ezaziwayo-kakuhle: Umgaqo blue and black kukuba doped kunye cobalt kunye carbon isibane element ngokulandelelanayo, kwaye conductivity ethile yombane. Ingxaki yesiphaluka esifutshane kunokwenzeka ukuba yenzeke xa amandla evuliwe, kunye nohlaza Ukuveliswa kweebhodi zesekethe ze-pcb kuhambelana nokusingqongileyo, kwaye ngokuqhelekileyo azikhuphi iigesi ezinetyhefu xa zisetyenziswa kwiindawo eziphakamileyo zokushisa.
Ukususela kumanqanaba aphakathi kunye nasekupheleni kwenkulungwane edlulileyo, ishishini liqalisile ukunikela ingqalelo kumbala weebhodi zePCB, ikakhulu ngenxa yokuba uninzi lweentlobo zebhodi ezikumgangatho ophezulu zabavelisi abaphambili benqanaba lokuqala bamkele uyilo lombala webhodi yePCB eluhlaza, ngoko ke abantu yamkelwe eluhlaza njenge-PCB. Umbala omiselweyo. Oku kungasentla sisizathu sokuba imveliso yebhodi yesekethe yePCB ikhethe eluhlaza.
Kwixesha elizayo, sebenzisa uhlaza kangangoko kunokwenzeka, kuba ixabiso eliluhlaza lithandeka ngakumbi. Akukho zidingo zikhethekileyo, uhlaza lwanele.