Inqubo yokukhiqiza ye-PCBA ingahlukaniswa ngezinqubo eziningana ezinkulu:

Idizayini nokuthuthukiswa kwe-PCB →Ukucutshungulwa kwesichibi se-SMT →Ukucubungula kwe-plug-in ye-DIP →ukuhlolwa kwe-PCBA → ukunqanda ukunamathela okuthathu → ukuhlanganisa umkhiqizo oqediwe.

Okokuqala, ukuklama nokuthuthukiswa kwe-PCB

1.Isidingo somkhiqizo

Uhlelo oluthile lungathola inani elithile lenzuzo emakethe yamanje, noma abathanda ukuqedela umklamo wabo we-DIY, khona-ke isidingo somkhiqizo esihambisanayo sizokhiqizwa;

2. Ukuklama nokuthuthukiswa

Kuhlanganiswe nezidingo zomkhiqizo wekhasimende, onjiniyela be-R & D bazokhetha i-chip ehambisanayo nenhlanganisela yesekethe yangaphandle yesisombululo se-PCB ukuze kuzuzwe izidingo zomkhiqizo, le nqubo yinde uma kuqhathaniswa, okuqukethwe okuhilelekile lapha kuzochazwa ngokwehlukana;

3, ukukhiqizwa kwesampula yesivivinyo

Ngemuva kokuthuthukiswa nokuklanywa kwe-PCB yokuqala, umthengi uzothenga izinto ezihambisanayo ngokuvumelana ne-BOM ehlinzekwe ucwaningo nokuthuthukiswa ukuze kwenziwe ukukhiqizwa nokulungisa iphutha lomkhiqizo, futhi ukukhiqizwa kwesilingo kuhlukaniswe ngobufakazi (10pcs), ukuhlolwa kwesibili (10pcs), ukukhiqizwa kwesilingo seqoqo elincane (50pcs~100pcs), ukukhiqizwa kwesilingo seqoqo elikhulu (100pcs~3001pcs), bese kuzongena esigabeni sokukhiqiza ngobuningi.

Okwesibili, i-SMT patch processing

Ukulandelana kokucutshungulwa kwepheshi ye-SMT kuhlukaniswe: ukubhaka okubalulekile → ukufinyelela kokunamathisela kwe-solder →SPI→ ukukhweza → ukuphinda kufakwe i-solder →AOI→ ukulungisa

1. Izinto zokubhaka

Kuma-chips, amabhodi e-PCB, amamojula nezinto ezikhethekile osekunezinyanga ezingaphezu kwezingu-3 zisesitokweni, kufanele zibhakwe ku-120℃ 24H. Kumakrofoni e-MIC, izibani ze-LED nezinye izinto ezingamelani nezinga lokushisa eliphezulu, kufanele zibhakwe ku-60℃ 24H.

2, ukufinyelela kokunamathisela kwe-solder (buyisela izinga lokushisa → ukunyakazisa → sebenzisa)

Ngenxa yokuthi i-solder yethu yokunamathisela igcinwa endaweni engu-2 ~ 10 ℃ isikhathi eside, idinga ukubuyiselwa ekwelapheni izinga lokushisa ngaphambi kokusetshenziswa, futhi ngemva kokushisa okubuyayo, idinga ukuxutshwa nge-blender, bese ingakwazi. zinyatheliswe.

3. Ukutholwa kwe-SPI3D

Ngemuva kokuthi i-solder paste iphrintiwe ebhodini lesifunda, i-PCB izofinyelela idivayisi ye-SPI ngebhande lokuthutha, futhi i-SPI izobona ubukhulu, ububanzi, ubude bokuphrinta kwe-solder paste kanye nesimo esihle se-tin surface.

4. Ntaba

Ngemva kokuba i-PCB igeleza emshinini we-SMT, umshini uzokhetha impahla efanele bese uyinamathisela enombolweni yebhithi ehambisanayo ngohlelo olusethiwe;

5. Reflow welding

I-pcb egcwele impahla igeleza iye ngaphambili kwe-reflow welding, futhi idlula ezindaweni zokushisa eziyishumi ukusuka ku-148℃ kuya ku-252℃ ngokushintshana, ihlanganisa ngokuphepha izingxenye zethu kanye nebhodi le-PCB ndawonye;

6, ukuhlolwa kwe-AOI ku-inthanethi

I-AOI ingumtshina othomathikhi we-optical, ongahlola ibhodi le-PCB ephuma nje esithandweni ngokusebenzisa ukuskena okunencazelo ephezulu, futhi ingabheka ukuthi kukhona yini okubalulekile ebhodini le-PCB, ukuthi impahla iyagudluzwa yini, ukuthi i-solder joint ixhunywe yini phakathi. izingxenye nokuthi ingabe ithebhulethi isusiwe.

7. Ukulungisa

Ezinkingeni ezitholakala ebhodini le-PCB ku-AOI noma ngesandla, idinga ukulungiswa unjiniyela olungisayo, futhi ibhodi le-PCB elikhandiwe lizothunyelwa ku-plug-in ye-DIP kanye nebhodi elivamile elingaxhunyiwe ku-inthanethi.

Okwesithathu, i-plug-in ye-DIP

Inqubo ye-DIP plug-in ihlukaniswe: ukubumba → i-plug-in → i-wave soldering → ukusika unyawo → ukubamba ithini → ipuleti lokuwasha → ukuhlolwa kwekhwalithi

1. Ukuhlinzwa Kwepulasitiki

Izinto ze-plug-in esizithengile ziyizinto ezijwayelekile, futhi ubude bephini lezinto esizidingayo buhlukile, ngakho-ke sidinga ukubumba izinyawo zezinto kusengaphambili, ukuze ubude nokuma kwezinyawo kusilungele. ukwenza i-plug-in noma ukuthumela i-welding.

2. I-plug-in

Izingxenye eziqediwe zizofakwa ngokuvumelana nesifanekiso esihambisanayo;

3, i-wave soldering

Ipuleti elifakiwe libekwe ku-jig ngaphambili kwe-wave soldering. Okokuqala, i-flux izofuthwa phansi ukusiza ukushisela. Lapho ipuleti lifika phezulu kwesithando somlilo, amanzi ethayela esithandweni azontanta futhi athinte iphini.

4. Sika izinyawo

Ngenxa yokuthi izinto zokucubungula ngaphambilini zizoba nezimfuneko ezithile zokubeka eceleni iphinikhodi ethe ukude kancane, noma impahla engenayo ngokwayo ayilungele ukucutshungulwa, iphinikhodi izosikwa ibe yibude obufanele ngokusikwa okwenziwa ngesandla;

5. Ukubamba ithini

Kungase kube nezenzakalo ezimbi ezifana nezimbobo, izimbobo, ukushisela okungabanjwanga, ukushisela okungamanga nokunye okukhoneni kwebhodi lethu le-PCB ngemva kwesithando somlilo. Umnikazi wethu wethayela uzowalungisa ngokuwakhanda ngesandla.

6. Geza ibhodi

Ngemva kokudayiswa kwamagagasi, ukulungiswa kanye nezinye izixhumanisi zangaphambili, kuzoba khona ukuguquguquka okusalayo noma ezinye izimpahla ezebiwe ezinamathiselwe endaweni yephinikhodi yebhodi le-PCB, okudinga ukuthi abasebenzi bethu bahlanze indawo yayo;

7. Ukuhlolwa kwekhwalithi

Iphutha lezingxenye zebhodi le-PCB kanye nokuhlola ukuvuza, ibhodi le-PCB elingafanelekile lidinga ukulungiswa, kuze kube yilapho lifaneleka ukuqhubeka nesinyathelo esilandelayo;

4. Ukuhlolwa kwe-PCBA

Ukuhlolwa kwe-PCBA kungahlukaniswa ngokuhlolwa kwe-ICT, ukuhlolwa kwe-FCT, ukuhlolwa kokuguga, ukuhlolwa kokudlidliza, njll

Ukuhlolwa kwe-PCBA kuyisivivinyo esikhulu, ngokusho kwemikhiqizo ehlukene, izidingo zekhasimende ezihlukene, izindlela zokuhlola ezisetshenzisiwe zihlukile. Ukuhlolwa kwe-ICT ukuthola isimo sokushisela sezingxenye kanye nesimo sokuvala imigqa, kuyilapho ukuhlolwa kwe-FCT kuwukubona okokufaka nokukhiphayo kwebhodi le-PCBA ukuhlola ukuthi ziyahlangabezana yini nezidingo.

Eyesihlanu: I-PCBA anti-coating ezintathu

I-PCBA izinyathelo ezintathu zokunqanda ukunamathela yilezi: uhlangothi lokuxubha A → indawo eyomile → uhlangothi lokuxubha B → ukwelapha izinga lokushisa legumbi 5. Ukufafaza ukujiya:

0.1mm-0.3mm6. Yonke imisebenzi yokumboza kufanele yenziwe emazingeni okushisa angekho ngaphansi kuka-16 ℃ kanye nomswakama ongaphansi kuka-75%. PCBA ezintathu anti-enamathela kusekuningi, ikakhulukazi ezinye izinga lokushisa kanye nomswakama imvelo enokhahlo, PCBA enamathela ezintathu anti-paint has insulation ephakeme, umswakama, ukuvuza, ukushaqeka, uthuli, ukugqwala, anti-ukuguga, anti-isikhutha, anti- izingxenye ezixegayo kanye nokufakwa kwe-corona ukumelana nokusebenza, kunganweba isikhathi sokugcina se-PCBA, ukuhlukaniswa nokuguguleka kwangaphandle, ukungcola nokunye. Indlela yokufafaza iyindlela evame ukusetshenziswa kakhulu embonini.

Ukuhlanganiswa komkhiqizo kuqedile

I-7.Ibhodi le-PCBA eliboshwe nge-test OK lihlanganiswe igobolondo, bese wonke umshini uguga futhi uhlola, futhi imikhiqizo ngaphandle kwezinkinga ngokusebenzisa ukuhlolwa kokuguga ingathunyelwa.

Ukukhiqizwa kwe-PCBA kuyisixhumanisi sesixhumanisi. Noma iyiphi inkinga kunqubo yokukhiqiza ye-pcba izoba nomthelela omkhulu kukhwalithi iyonke, futhi inqubo ngayinye idinga ukulawulwa ngokuqinile.