Iningi lamabhodi wesifunda esiwasebenzisayo aluhlaza? Kungani kunjalo? Eqinisweni, amabhodi wesifunda we-PCB awawona ngempela aluhlaza. Kuya ngokuthi umklami ufuna ukuwenza muphi umbala.
Ngaphansi kwezimo ezijwayelekile, sikhetha okuluhlaza, ngoba okuluhlaza kuyacasula kancane emehlweni, futhi izisebenzi zokukhiqiza nezokugcina ngeke zijwayele ukukhathala kwamehlo lapho zigqolozele ukukhiqizwa kwamabhodi wesifunda se-pcb isikhathi eside. Kuzodala umonakalo omncane emehlweni. Imibala evame ukusetshenziswa eluhlaza okwesibhakabhaka, emhlophe kanye nensomi. , Okuphuzi, okumnyama, okubomvu, yonke imibala ipendwe phezulu ngemva kokukhiqiza.
1. Izizathu zokusebenzisa oluhlaza ekukhiqizeni amabhodi wesifunda we-pcb
(1) Ukwethulwa kwenkampani yasekhaya yokukhiqiza ibhodi lesekethe ye-pcb: Uyinki oluhlaza yiwona osetshenziswa kabanzi, mude kunawo wonke emlandweni, futhi ushibhe kakhulu emakethe yamanje, ngakho okuluhlaza kusetshenziswa inani elikhulu labakhiqizi njengemikhiqizo yabo. Umbala oyinhloko.
(2) Ngaphansi kwezimo ezijwayelekile, ngesikhathi sokukhiqizwa kwebhodi lesifunda le-PCB, kunezinqubo ezimbalwa okufanele zidlule egumbini lokukhanya eliphuzi, ngoba umphumela wohlaza egumbini lokukhanya ophuzi kufanele ube ngcono kuneminye imibala, kodwa lokhu akunjalo. kakhulu Isizathu esiyinhloko. Lapho i-soldering izingxenye ku-SMT, ukukhiqizwa kwamabhodi esekethe e-pcb kufanele kudlule inqubo yokunamathisela i-solder nefilimu yokuthumela kanye nesibani sokugcina sokulinganisa se-AOI. Lezi zinqubo zonke zidinga ukubekwa endaweni ebonakalayo futhi zilinganiswe. Umbala wangemuva oluhlaza ungahlonza insimbi. kangcono.
2. Iyini imibala evamile ekukhiqizeni amabhodi wesifunda we-pcb
(1) Imibala ejwayelekile yokukhiqiza yamabhodi wesekethe ye-pcb ibomvu, iphuzi, iluhlaza okotshani, eluhlaza okwesibhakabhaka nokumnyama. Kodwa-ke, ngenxa yezinkinga ezifana nenqubo yokukhiqiza, inqubo yokuhlolwa kwekhwalithi yemigqa eminingi kusafanele incike emehlweni ezisebenzi ukuze ibukisise futhi ibone (iningi labo njengamanje lisebenzisa ubuchwepheshe bokuhlola i-flying probe). Amehlo alokhu egqolozele ibhodi ngaphansi kokukhanya okunamandla. Le nqubo ikhathaza kakhulu. Uma kuqhathaniswa, okuluhlaza kuyingozi kakhulu emehlweni, ngakho-ke abakhiqizi abaningi njengamanje basebenzisa ama-PCB aluhlaza emakethe.
(2) Ukwethulwa kwabakhiqizi bebhodi lesekethe le-PCB abafuywayo abaziwayo: Umgomo wokuluhlaza okwesibhakabhaka nokumnyama ukuthi afakwe izakhi zesibani se-cobalt ne-carbon ngokulandelana, futhi abe nokuhamba okuthile kukagesi. Inkinga yomjikelezo omfushane kungenzeka yenzeke lapho amandla evuliwe, kanye nohlaza Ukukhiqizwa kwamabhodi wesekethe we-pcb kuhambisana nemvelo, futhi ngokuvamile akukhiphi amagesi anobuthi uma kusetshenziswa ezindaweni ezishisayo.
Kusukela ngezigaba ezimaphakathi nezakamuva zekhulu leminyaka elidlule, imboni isiqalile ukunaka umbala wamabhodi e-PCB, ikakhulukazi ngoba izinhlobo eziningi zebhodi ezisezingeni eliphezulu zabakhiqizi abakhulu besigaba sokuqala bamukele umklamo wombala webhodi le-PCB oluhlaza, ngakho-ke abantu yamukele eluhlaza njenge-PCB. Umbala ozenzakalelayo. Okungenhla kuyisizathu esenza ukukhiqizwa kwebhodi lesifunda le-PCB kukhethe okuluhlaza.
Esikhathini esizayo, sebenzisa okuluhlaza ngangokunokwenzeka, ngoba intengo eluhlaza ingcono kakhulu. Azikho izidingo ezikhethekile, okuluhlaza kwanele.