Gahunda yo kubyara PCBA irashobora kugabanywamo inzira nyinshi zingenzi:

Igishushanyo cya PCB niterambere → Gutunganya patch ya SMT → DIP plug-in gutunganya test Ikizamini cya PCBA → bitatu birwanya-gutwika → guteranya ibicuruzwa byarangiye.

Icyambere, PCB igishushanyo niterambere

1.Ibisabwa

Gahunda runaka irashobora kubona inyungu yinyungu kumasoko agezweho, cyangwa abakunzi bifuza kurangiza igishushanyo cyabo DIY, noneho ibicuruzwa bikenewe bizabyara umusaruro;

2. Gutegura no kwiteza imbere

Ufatanije nibicuruzwa byabakiriya bakeneye, R & D injeniyeri bazahitamo chip ijyanye numuzunguruko wo hanze uhuza igisubizo cya PCB kugirango ugere kubicuruzwa bikenewe, iyi nzira ni ndende, ibirimo birimo hano bizasobanurwa ukundi;

3, icyitegererezo cyo kugerageza

Nyuma yo gutezimbere no gushushanya PCB ibanza, umuguzi azagura ibikoresho bijyanye ukurikije BOM yatanzwe nubushakashatsi niterambere kugirango ikore umusaruro nogucukumbura ibicuruzwa, kandi umusaruro wikigereranyo ugabanijwemo ibimenyetso (10pcs), Icyemezo cya kabiri (10pcs), umusaruro muto wo kugerageza (50pcs ~ 100pcs), umusaruro munini wo kugerageza (100pcs ~ 3001pcs), hanyuma uzinjira mubyiciro byinshi.

Icya kabiri, gutunganya SMT

Urukurikirane rwo gutunganya ibicuruzwa bya SMT bigabanijemo: guteka ibikoresho → kugurisha paste kwinjira → SPI → gushiraho → kugurisha ibicuruzwa → AOI → gusana

1. Ibikoresho byo guteka

Kuri chip, ikibaho cya PCB, module nibikoresho bidasanzwe bimaze amezi arenga 3 bibitswe, bigomba gutekwa kuri 120 ℃ 24H. Kuri mikoro ya MIC, amatara ya LED nibindi bintu bitarwanya ubushyuhe bwinshi, bigomba gutekwa kuri 60 ℃ 24H.

2, kugurisha paste kwinjira (kugaruka ubushyuhe → gukurura → gukoresha)

Kuberako paste yacu yo kugurisha ibitswe mubidukikije bya 2 ~ 10 ℃ igihe kinini, igomba gusubizwa kuvura ubushyuhe mbere yo kuyikoresha, kandi nyuma yubushyuhe bwo kugaruka, igomba kuvangwa na blender, hanyuma irashobora gucapwa.

3. Kumenya SPI3D

Nyuma yo kugurisha ibicuruzwa byacapishijwe ku kibaho cy’umuzunguruko, PCB izagera ku gikoresho cya SPI ikoresheje umukandara wa convoyeur, kandi SPI izamenya ubugari, ubugari, uburebure bw’icapiro rya paste hamwe n’imiterere myiza y’amabati.

4. Umusozi

PCB imaze gutembera mumashini ya SMT, imashini izahitamo ibikoresho bikwiye hanyuma iyishyire kuri numero ya biti ihuye na gahunda yashyizweho;

5. Kugaragaza gusudira

Pcb yuzuyemo ibintu bitembera imbere yo gusudira, hanyuma ikanyura muri zone icumi yubushyuhe kuva kuri 148 ℃ kugeza kuri 252 ℃ nayo, igahuza neza ibice byacu hamwe nubuyobozi bwa PCB hamwe;

6, kumurongo wa AOI kwipimisha

AOI ni icyuma gikoresha optique, gishobora kugenzura ikibaho cya PCB kiva mu itanura binyuze mu gusikana cyane, kandi gishobora kugenzura niba hari ibikoresho bike ku kibaho cya PCB, niba ibikoresho byimuwe, niba umugurisha uhuza hagati? ibigize kandi niba tablet yarangiye.

7. Gusana

Kubibazo biboneka ku kibaho cya PCB muri AOI cyangwa intoki, bigomba gusanwa na injeniyeri wo kubungabunga, kandi ikibaho cya PCB cyasanwe kizoherezwa kuri plaque ya DIP hamwe nubuyobozi busanzwe bwa interineti.

Bitatu, DIP icomeka

Inzira yo gucomeka DIP igabanijwemo: gushiraho → gucomeka → kugurisha umuyaga → gukata ikirenge → gufata amabati → isahani → ubugenzuzi bwiza

1. Kubaga plastique

Ibikoresho byo gucomeka twaguze nibikoresho bisanzwe, kandi uburebure bwa pin bwibikoresho dukeneye buratandukanye, bityo rero dukeneye gushiraho ibirenge byibikoresho hakiri kare, kugirango uburebure n'imiterere y'ibirenge bitworoheye. gukora plug-in cyangwa gusudira.

2. Gucomeka

Ibice byarangiye bizinjizwa ukurikije inyandikorugero ijyanye;

3, kugurisha umuraba

Isahani yinjijwe ishyirwa kuri jig imbere yimbere yo kugurisha. Ubwa mbere, flux izaterwa hepfo kugirango ifashe gusudira. Isahani iyo igeze hejuru y'itanura, amazi y'amabati mu itanura azareremba hanyuma ahure na pin.

4. Kata ibirenge

Kuberako ibikoresho byabanjirije gutunganya bizaba bifite ibisabwa byihariye kugirango ushire ku ruhande pin ndende ndende, cyangwa ibikoresho byinjira ubwabyo ntabwo byoroshye gutunganya, pin izagabanywa kugeza murwego rukwiye ukoresheje intoki;

5. Gufata amabati

Hashobora kubaho ibintu bibi nkibyobo, pinholes, kubura gusudira, gusudira kubeshya nibindi mumapine yubuyobozi bwa PCB nyuma yitanura. Amabati yacu azayasana mugusana intoki.

6. Karaba ikibaho

Nyuma yo kugurisha umuraba, gusana nandi masano yimbere-imbere, hazaba hari ibintu bisigaye bisigaye cyangwa ibindi bicuruzwa byibwe bifatanye kumwanya wubuyobozi bwa PCB, bisaba abakozi bacu gusukura hejuru yacyo;

7. Kugenzura ubuziranenge

Ikibaho cya PCB ikosa no kugenzura, kugenzura PCB itujuje ibyangombwa bigomba gusanwa, kugeza byujuje ibisabwa kugirango bikomeze intambwe ikurikira;

4. Ikizamini cya PCBA

Ikizamini cya PCBA kirashobora kugabanywa mubizamini bya ICT, ikizamini cya FCT, ikizamini cyo gusaza, ikizamini cya vibrasiya, nibindi

Ikizamini cya PCBA nikizamini kinini, ukurikije ibicuruzwa bitandukanye, ibyifuzo byabakiriya bitandukanye, ikizamini gikoreshwa kiratandukanye. Ikizamini cya ICT ni ukumenya uburyo bwo gusudira ibice hamwe nuburyo bwo guhagarika imirongo, mugihe ikizamini cya FCT ari ukumenya ibyinjira nibisohoka mubuyobozi bwa PCBA kugirango barebe niba bujuje ibisabwa.

Gatanu: PCBA anti-coating

PCBA intambwe eshatu zo kurwanya ibishishwa ni: guswera uruhande A → hejuru yumye side gukaraba uruhande B → ubushyuhe bwicyumba bukiza 5. Gutera umubyimba:

0.1mm-0.3mm6. Ibikorwa byose byo gutwikira bigomba gukorwa ku bushyuhe butari munsi ya 16 ℃ n'ubushuhe bugereranije buri munsi ya 75%. PCBA anti-coating eshatu iracyari myinshi, cyane cyane ubushyuhe nubushuhe hamwe n’ibidukikije bikaze, PCBA itwikiriye amarangi atatu irwanya amarangi afite ubwirinzi bukabije, ubushuhe, kumeneka, guhungabana, ivumbi, ruswa, kurwanya gusaza, kurwanya indwara, kurwanya indwara ibice birekuye kandi bikingira imikorere ya corona birwanya, birashobora kongera igihe cyo kubika PCBA, kwigunga isuri yo hanze, umwanda nibindi. Uburyo bwo gusasa nuburyo bukoreshwa cyane mugukora inganda.

Kurangiza ibicuruzwa

7.Ikibaho cya PCBA gipfundikijwe hamwe nikizamini OK cyegeranijwe kuri shell, hanyuma imashini yose irasaza kandi iragerageza, kandi ibicuruzwa bidafite ibibazo binyuze mubizamini byo gusaza birashobora koherezwa.

Umusaruro wa PCBA ni umuhuza. Ikibazo icyo aricyo cyose mubikorwa bya pcba bizagira ingaruka zikomeye kumiterere rusange, kandi buri nzira igomba kugenzurwa cyane.