Izinyathelo zokuphepha zokusetshenziswa kwe-oven ye-SMT reflow.

I-smt reflow oven iyimishini ye-smt back-end, umsebenzi oyinhloko ukuncibilikisa unamathisele we-solder, bese uvumela izingxenye ze-elekthronikhi zidle ithini, ukuze zilungiswe ku-pcb pad,imishini ye-smt reflowingenye yezingxenye ezintathu ezinkulu ze-smt, i-reflow soldering Effects namathonya kubaluleke kakhulu kwikhwalithi yemikhiqizo ekhiqizwayo.

1. Ukulungiselelwa kwendawo yezinga lokushisa akukwazi ukulungiswa ngokuzenzakalelayo.Imingcele yendawo yokushisa ebalwe ngenhla inqunywa ngokuyisisekelo ngokomphumela wangempela wokuphulukisa wokuthi indawo yebhodi le-welding pcb i-akhawunti engu-90% yendawo ephumelelayo ye-stencil yokudlulisa esithandweni sokushisela, futhi izinga lokuthutha ibhande lingu-75cm± 10cm/S.kwe.Uma kunomehluko omkhulu endaweni yebhodi le-pcb elicutshunguliwe, ijubane lebhande kufanele lilungiswe kahle ukuze kuzuzwe umphumela omuhle wokushisela.Umgomo ojwayelekile wokulungisa uwukuthi: lapho indawo yebhodi le-pcb incane, ijubane lebhande le-mesh lishesha kancane;lapho indawo yebhodi le-pcb inkulu, ijubane lebhande le-mesh lihamba kancane, futhi yonke into ingaphansi kokuzuza umphumela omuhle we-welding;

2. Imingcele ye-PID yethebula lokulawula izinga lokushisa akufanele isethwe ngokunganaki;

3. I-inlet kanye ne-outlet yomshini wokuphinda uthele amanzi kufanele igweme umoya wemvelo wangaphandle ovunguza phakathi ngesikhathi sokusetshenziswa, okuzothinta ibhalansi yokushisa eguquguqukayo esithandweni futhi kuthinteukushiselaikhwalithi;

4. Lapho uthumela i-workpiece ye-PCB embotsheni yokukhipha isithando somlilo, kuyadingeka ukugwema ingozi yokushisa isandla somqhubi;kuyadingeka futhi ukuvimbela ibhodi le-PCB ekuqongeleleni echwebeni lokukhipha, okwenza ibhodi le-PCB liwe noma ibhodi le-PCB ekuphumeni.Amandla e-solder aphansi ngaphansi kwezimo zokushisa okuphezulu Izingxenye ze-SMD ziyawa ngenxa yokuwa noma umthelela wokuchoboza;

5. Yenza umsebenzi omuhle ekunakekeleni kwansuku zonkeumshini wokushiselaimishini: hlanza ubuso be-imishininsuku zonke ukuze ukwenze kungabi nokungcoliswa, chofoza inkinobho yokufaka amafutha kanye ngeviki ngendlela yokwenza imanuwali yokufaka uphethiloli, bese ugcoba iketango le-roller ngamafutha okugcoba okushisa aphezulu (BIO-30);ekukhiqizeni okuqhubekayo, nyanga zonke Hhayi ngaphansi kokuphindwe kabili: Hlola ukwengeza amafutha okugcoba okushisa aphezulu kunjini yesithando somlilo kanye nesondo ngalinye elijikelezayo le-shaft;

6. Hlola ukuthi intambo yaphansi yomshini wokushisela ixhunywe ngokuthembekile ngaphambi kokuqala umshini nsuku zonke;

7. Ngemva kokuxazulula inkinga, vula ugesi oyinhloko wezinto zokusebenza bese uvula iswishi ebomvu yokumisa izimo eziphuthumayo emise okwekhowe ngokwewashi ukuze ubuyele esimweni sokuqala sokusebenza.Lapho umshini ucishiwe, i-PCB kanye nebhande lensimbi elidlulisayo akufanele limiswe esithandweni esisesimeni sokushisa okuphezulu, futhi ibhande lokudlulisa kufanele limiswe ngemva kokuba izinga lokushisa emshinini lehlile.