Kupanga kwa PCBA kumatha kugawidwa m'njira zingapo zazikulu:

Kupanga ndi kakulidwe ka PCB →Kukonza chigamba cha SMT →kukonza pulagi ya DIP →kuyesa kwa PCBA → zokutira zitatu → kuphatikiza zomalizidwa.

Choyamba, PCB kapangidwe ndi chitukuko

1.Kufuna kwazinthu

Chiwembu china chikhoza kupeza phindu linalake pamsika wamakono, kapena okonda akufuna kumaliza mapangidwe awo a DIY, ndiye kuti zomwe zimafunidwa zidzapangidwa;

2. Mapangidwe ndi chitukuko

Kuphatikizidwa ndi zosowa za kasitomala, akatswiri a R & D adzasankha chip chofananira ndi kuphatikiza kozungulira kozungulira kwa PCB yankho kuti akwaniritse zosowa zazinthu, njirayi ndi yayitali, zomwe zikukhudzidwa apa zidzafotokozedwa mosiyana;

3, kupanga zitsanzo zoyeserera

Pambuyo pa chitukuko ndi mapangidwe a PCB yoyambirira, wogula adzagula zinthu zofananira malinga ndi BOM yoperekedwa ndi kafukufuku ndi chitukuko kuti akwaniritse kupanga ndi kukonza zinthuzo, ndipo kupanga mayesero kumagawidwa kukhala umboni (10pcs), kutsimikizira sekondale (10pcs), yaing'ono mtanda mayesero kupanga (50pcs ~ 100pcs), lalikulu mtanda mayesero kupanga (100pcs ~ 3001pcs), ndiyeno adzalowa siteji kupanga misa.

Chachiwiri, SMT chigamba processing

Kutsatizana kwa SMT patch processing kugawidwa mu: kuphika zinthu → kupeza phala la solder → SPI→ kukwera → reflow soldering →AOI→ kukonza

1. Zipangizo zophika

Kwa tchipisi, matabwa a PCB, ma modules ndi zipangizo zapadera zomwe zakhalapo kwa miyezi yoposa 3, ziyenera kuphikidwa pa 120 ℃ 24H.Kwa ma maikolofoni a MIC, magetsi a LED ndi zinthu zina zomwe sizingagwirizane ndi kutentha kwakukulu, ziyenera kuphikidwa pa 60 ℃ 24H.

2, kupeza phala la solder (kubwerera kutentha → kuyambitsa → kugwiritsa ntchito)

Chifukwa phala lathu la solder limasungidwa m'malo a 2 ~ 10 ℃ kwa nthawi yayitali, liyenera kubwezeredwa ku chithandizo cha kutentha musanagwiritse ntchito, ndipo pambuyo pa kutentha kobwerera, liyenera kugwedezeka ndi blender, ndiyeno limatha. kusindikizidwa.

3. Kuzindikira kwa SPI3D

Pambuyo phala solder kusindikizidwa pa bolodi dera, ndi PCB kufika chipangizo SPI kudzera conveyor lamba, ndi SPI kudziwa makulidwe, m'lifupi, kutalika kwa solder phala kusindikiza ndi chikhalidwe chabwino cha pamwamba malata.

4. Phiri

Pambuyo pa PCB kuyenderera ku makina a SMT, makinawo amasankha zinthu zoyenera ndikuziyika ku nambala yofananira kudzera mu pulogalamu yokhazikitsidwa;

5. Reflow kuwotcherera

The pcb wodzazidwa ndi zinthu umayenda kutsogolo kwa kuwotcherera reflow, ndipo akudutsa magawo khumi sitepe kutentha kuchokera 148 ℃ 252 ℃ nayenso, bwinobwino zomangira zigawo zathu ndi PCB bolodi pamodzi;

6, kuyesa kwa AOI pa intaneti

AOI ndi chowunikira chodziwikiratu, chomwe chimatha kuyang'ana bolodi ya PCB itangotuluka mu ng'anjo kudzera mu sikani yatanthauzo lapamwamba, ndikuwona ngati pali zinthu zochepa pa bolodi la PCB, ngati zinthuzo zasunthidwa, ngati cholumikizira chogulitsira chikulumikizidwa pakati. zigawo zake komanso ngati piritsiyo yatha.

7. Kukonza

Pamavuto omwe apezeka pa bolodi ya PCB mu AOI kapena pamanja, ikuyenera kukonzedwa ndi mainjiniya wokonza, ndipo bolodi ya PCB yokonzedwayo itumizidwa ku pulagi ya DIP pamodzi ndi bolodi yanthawi zonse yopanda intaneti.

Chachitatu, DIP plug-in

Njira ya DIP plug-in imagawidwa kukhala: kuumba → pulagi-mu → kugwedeza kozungulira → kudula phazi → kukhala ndi malata → mbale yochapira → kuyang'anira khalidwe

1. Opaleshoni Yapulasitiki

Zida za plug-in zomwe tagula ndizo zonse zokhazikika, ndipo kutalika kwa pini kwa zipangizo zomwe timafunikira ndizosiyana, kotero tiyenera kupanga mapazi a zipangizo pasadakhale, kuti kutalika ndi mawonekedwe a mapazi zikhale zosavuta kwa ife. kuchita plug-in kapena positi kuwotcherera.

2. Pulagi-mu

Zigawo zomalizidwa zidzayikidwa molingana ndi template yofananira;

3, kutentha kwa mpweya

Mbale yomwe imayikidwa imayikidwa pa jig kutsogolo kwa soldering yoweyula.Choyamba, flux imatsitsidwa pansi kuti ithandizire kuwotcherera.Mbale ikafika pamwamba pa ng'anjo ya malata, madzi a malata a m'ng'anjoyo amayandama ndikulumikizana ndi pini.

4. Dulani mapazi

Chifukwa chakuti zipangizo zokonzedweratu zidzakhala ndi zofunikira zina kuti muyike pambali pini yotalikirapo pang'ono, kapena zinthu zomwe zikubwerazo sizili bwino kukonzedwa, piniyo idzadulidwa mpaka kutalika koyenera ndi kudula pamanja;

5. Kugwira malata

Pakhoza kukhala zinthu zoipa monga mabowo, pinholes, kuwotcherera anaphonya, kuwotcherera zabodza ndi zina zotero mu zikhomo PCB bolodi wathu pambuyo ng'anjo.Chotengera chathu cha malata chidzazikonza ndi kukonza pamanja.

6. Tsukani bolodi

Pambuyo pazitsulo zowotchera, kukonza ndi maulalo ena akutsogolo, padzakhala zotsalira zotsalira kapena zinthu zina zabedwa zomwe zimagwirizanitsidwa ndi pini ya bolodi la PCB, zomwe zimafuna kuti antchito athu aziyeretsa pamwamba pake;

7. Kuyang'anira khalidwe

PCB bolodi zigawo zolakwa ndi kutayikira cheke, osayenera PCB bolodi ayenera kukonzedwa, mpaka oyenerera chitani sitepe yotsatira;

4. PCBA mayeso

Mayeso a PCBA atha kugawidwa mu mayeso a ICT, mayeso a FCT, mayeso okalamba, mayeso a vibration, etc

Mayeso a PCBA ndi mayeso akulu, malinga ndi zinthu zosiyanasiyana, zofunikira zosiyanasiyana zamakasitomala, njira zoyesera zomwe zimagwiritsidwa ntchito ndizosiyana.ICT mayeso ndi kudziwa mkhalidwe kuwotcherera zigawo zikuluzikulu ndi pa-off chikhalidwe cha mizere, pamene FCT mayeso ndi kudziwa athandizira ndi linanena bungwe magawo a bolodi PCBA kuona ngati iwo akwaniritsa zofunika.

Chachisanu: PCBA katatu anti-coating

PCBA masitepe atatu odana ndi kupaka ndi: kupukuta mbali A → pamwamba youma → tsuka B → kutentha kwa chipinda 5. Kupopera mbewu mankhwalawa makulidwe:

0.1mm-0.3mm6.Ntchito zonse zokutira ziyenera kuchitika pa kutentha kosachepera 16 ℃ ndi chinyezi chachibale pansi pa 75%.PCBA atatu odana ❖ kuyanika akadali zambiri, makamaka kutentha ndi chinyezi kwambiri chilengedwe nkhanza, PCBA ❖ kuyanika atatu odana utoto ali kutchinjiriza wapamwamba, chinyezi, kutayikira, mantha, fumbi, dzimbiri, odana ndi ukalamba, odana ndi mildew, odana ndi mildew. mbali zotayirira ndi kutchinjiriza corona kukana ntchito, akhoza kuwonjezera nthawi yosungirako PCBA, kudzipatula kukokoloka kunja, kuipitsa ndi zina zotero.Njira yopopera mbewu mankhwalawa ndiyo njira yomwe imagwiritsidwa ntchito kwambiri pakupaka pamakampani.

Anamaliza mankhwala msonkhano

7.The TACHIMATA PCBA bolodi ndi mayeso OK akusonkhanitsidwa kwa chipolopolo, ndiyeno makina onse ndi kukalamba ndi kuyezetsa, ndi mankhwala popanda mavuto kudzera mayeso okalamba akhoza kutumizidwa.

Kupanga kwa PCBA ndi ulalo wa ulalo.vuto lililonse mu ndondomeko pcba kupanga adzakhala ndi zimakhudza kwambiri khalidwe lonse, ndi ndondomeko ayenera mosamalitsa kulamulidwa.