Iyo PCBA yekugadzira maitiro inogona kukamurwa kuita akati wandei maitiro makuru:

PCB dhizaini nekusimudzira → SMT chigamba kugadzirisa →DIP plug-in kugadzirisa → PCBA bvunzo → matatu anti-kupotera → yapera chigadzirwa kusangana.

Kutanga, PCB dhizaini nekusimudzira

1.Chigadzirwa chinodiwa

Imwe hurongwa inogona kuwana imwe purofiti yakakosha mumusika wazvino, kana vanofarira vanoda kupedzisa yavo DIY dhizaini, ipapo inoenderana chigadzirwa chinodiwa chinogadzirwa;

2. Kugadzira uye kusimudzira

Yakasanganiswa nezvinodiwa zvechigadzirwa chemutengi, maR & D mainjiniya achasarudza chip chinoenderana uye chekunze chedunhu musanganiswa wePCB mhinduro yekuwana zvigadzirwa zvinodiwa, maitiro aya akareba, izvo zvinobatanidzwa pano zvichatsanangurwa zvakasiyana;

3, sampuli yekuedza kugadzirwa

Mushure mekuvandudzwa uye dhizaini yekutanga PCB, mutengi achatenga zvinhu zvinoenderana zvinoenderana neBOM yakapihwa netsvagurudzo nekusimudzira kuita kugadzirwa uye kugadzirisa kwechigadzirwa, uye muyedzo wekugadzira unokamurwa kuita proofing (10pcs), chechipiri proofing (10pcs), diki batch muyedzo kugadzirwa (50pcs ~ 100pcs), hombe batch muyedzo kugadzirwa (100pcs ~ 3001pcs), uye ipapo achapinda muzhinji kugadzirwa danho.

Chechipiri, SMT chigamba kugadzirisa

Iyo inoteedzana yeSMT chigamba kugadzirisa yakakamurwa kuita: kubheka zvinhu → solder paste kuwana → SPI→ kukwira → reflow soldering →AOI→ kugadzirisa

1. Zvinhu zvekubika

Kune machipisi, mabhodhi ePCB, mamodule uye zvakakosha zvinhu zvave zviri muzvitoro kweinopfuura mwedzi mitatu, zvinofanirwa kubikwa pa120 ℃ 24H. Kune maMIC maikorofoni, mwenje we LED uye zvimwe zvinhu zvisinga mirire kupisa kwakanyanya, zvinofanirwa kubikwa pa60 ℃ 24H.

2, solder paste kuwana (kudzosa tembiricha → kubvongodza → shandisa)

Nekuti solder paste yedu yakachengetwa munzvimbo ye2 ~ 10 ℃ kwenguva yakareba, inoda kudzoserwa kune tembiricha kurapwa isati yashandiswa, uye mushure mekudzoka tembiricha, inoda kubvongodzwa neblender, uyezve inogona. kudhindwa.

3. SPI3D kuonekwa

Mushure mekunge solder paste yakadhindwa pabhodhi redunhu, iyo PCB ichasvika kune SPI mudziyo kuburikidza nebhandi rekutakura, uye SPI ichaona ukobvu, hupamhi, kureba kweiyo solder paste kudhinda uye mamiriro akanaka etini.

4. Gomo

Mushure mekunge PCB yayerera ichienda kumuchina weSMT, muchina uchasarudza chinhu chakakodzera uye wonamira kune inoenderana bit nhamba kuburikidza neyakaiswa chirongwa;

5. Reflow welding

Iyo pcb yakazadzwa nezvinhu inoyerera ichienda kumberi kwekutsvaira, uye inopfuura gumi nhanho tembiricha nzvimbo kubva 148 ℃ kusvika 252 ℃ zvakare, zvakachengeteka bonding yedu zvinoriumba uye PCB bhodhi pamwe chete;

6, kuongororwa kweAOI yepamhepo

AOI iotomatiki optical detector, inogona kutarisa PCB board ichangobuda muchoto kuburikidza nehigh-definition scanning, uye inokwanisa kutarisa kana pane zvinhu zvishoma paPCB board, kuti zvinhu zvacho zvakachinjwa here, kuti solder joint yakabatana here. izvo zvinoumba uye kana piritsi racho rakadzimwa.

7. Kugadzirisa

Pamatambudziko anowanikwa paPCB board muAOI kana nemaoko, inoda kugadziriswa nainjiniya anogadzirisa, uye PCB board yakagadziridzwa inotumirwa kuDIP plug-in pamwe chete nebhodhi rakajairwa.

Tatu, DIP plug-in

Maitiro eDIP plug-in akakamurwa kuita: kuumba → plug-in → wave soldering → kucheka tsoka → kubata tin → ndiro yekuwachisa → kuongororwa kwemhando

1. Kuvhiyiwa kwepurasitiki

Iyo plug-in zvinhu zvatakatenga zvese zvakajairwa zvinhu, uye urefu hwepini hwezvinhu zvatinoda hwakasiyana, saka isu tinofanirwa kuumba tsoka dzemidziyo pachine nguva, kuitira kuti kureba uye chimiro chetsoka zvitiitire. kuita plug-in kana post welding.

2. Plug-in

Izvo zvikamu zvakapedzwa zvichaiswa zvinoenderana netemplate inoenderana;

3, wave soldering

Indiro yakapinzwa inoiswa pajig kumberi kwewave soldering. Chekutanga, flux ichapfapfaidzwa pasi kuti ibatsire welding. Kana ndiro yasvika pamusoro pechoto cherata, mvura yerata iri muchoto inoyangarara yobata pini.

4. Cheka tsoka

Nekuti izvo zvakafanogadzikiswa zvinhu zvichange zviine zvimwe zvinodiwa kuti uise parutivi pini yakati rebei, kana zvinhu zvinouya pachazvo hazvina kunaka kugadzikiswa, pini inochekwa kusvika pahurefu hwakakodzera nekuchekeresa nemaoko;

5. Kubata rata

Panogona kunge paine zvimwe zvakaipa zviitiko zvakaita semakomba, mapini, wakapotsa welding, welding yenhema uye zvichingodaro mumapini ePCB board yedu mushure mechoto. Marata edu anoagadzirisa nekugadzirisa nemaoko.

6. Shamba bhodhi

Mushure meiyo wave soldering, kugadzirisa uye zvimwe zvinongedzo zvemberi-mberi, pachava nekusarira flux kana zvimwe zvinhu zvakabiwa zvakanamirwa panzvimbo yepini yePCB board, inoda kuti vashandi vedu vachenese nzvimbo yayo;

7. Kuongororwa kwehutano

PCB bhodhi zvikamu kukanganisa uye leakage cheki, isina kukodzera PCB bhodhi inoda kugadziriswa, kusvikira akakodzera kuenderera kune rinotevera danho;

4. PCBA bvunzo

PCBA bvunzo inogona kukamurwa kuita ICT bvunzo, FCT bvunzo, kuchembera bvunzo, vibration bvunzo, nezvimwe

PCBA bvunzo muyedzo wakakura, zvinoenderana neyakasiyana zvigadzirwa, zvakasiyana zvinodiwa nevatengi, bvunzo nzira dzinoshandiswa dzakasiyana. ICT bvunzo ndeyekuona iyo welding mamiriro ezvikamu uye on-off mamiriro emitsara, nepo FCT bvunzo ndeyekuona yekupinda uye inobuda paramita yePCBA board kutarisa kuti inoenderana here nezvinodiwa.

shanu: PCBA matatu anti-coating

PCBA nhanho nhatu dzekupotera ndeidzi: divi rekukwesha A → pevhu rakaoma → divi rekukwesha B → kupisa tembiricha yemumba 5. Kupfapfaidza ukobvu:

0.1mm-0.3mm6. Kuvhiya kwese kunofanira kuitwa patembiricha isiri pasi pe16 ℃ uye hunyoro huri pasi pe75%. PCBA matatu anti-coating ichiri yakawanda, kunyanya imwe tembiricha uye humidity yakawedzera kuomarara nharaunda, PCBA yekupfekedza matatu anti-pendi ine yakakwirira insulation, unyoro, kuvuza, kuvhunduka, guruva, ngura, anti-kuchembera, anti-mildew, anti- zvikamu zvakasununguka uye zvekudzivirira corona kuramba kuita, zvinogona kuwedzera nguva yekuchengetedza yePCBA, kuparadzaniswa kwekukukurwa kwekunze, kusvibiswa uye zvichingodaro. Kupfapfaidza nzira ndiyo inonyanya kushandiswa coating nzira muindasitiri.

Yakapera chigadzirwa kusangana

7.Iyo yakavharwa PCBA bhodhi ine bvunzo OK inounganidzwa kune goko, uye ipapo muchina wese uri kuchembera uye kuyedza, uye zvigadzirwa zvisina matambudziko kuburikidza nekuchembera bvunzo inogona kutumirwa.

PCBA kugadzira chinongedzo kune chinongedzo. Chero dambudziko mukugadzirwa kwepcba richava nekukanganisa kukuru pahupamhi hwese, uye maitiro ega ega anofanira kunyatsodzorwa.