Tsarin sarrafa faci na PCBA yana da rikitarwa sosai, gami da tsarin masana'antar hukumar PCB, siyan abubuwa da dubawa, taron SMT faci, toshe DIP, gwajin PCBA da sauran mahimman matakai. Daga cikin su, gwajin PCBA shine mafi mahimmancin hanyar haɗin kai mai inganci a cikin dukkan tsarin sarrafa PCBA, wanda ke ƙayyade aikin ƙarshe na samfurin. Don haka menene siffofin gwajin PCBA? Menene gwajin pcba

Tsarin sarrafa faci na PCBA yana da rikitarwa sosai, gami da tsarin masana'antar hukumar PCB, siyan abubuwa da dubawa, taron SMT faci, toshe DIP, gwajin PCBA da sauran mahimman matakai. Daga cikin su, gwajin PCBA shine mafi mahimmancin hanyar haɗin kai mai inganci a cikin dukkan tsarin sarrafa PCBA, wanda ke ƙayyade aikin ƙarshe na samfurin. Don haka menene siffofin gwajin PCBA? Gwajin PCBA galibi ya haɗa da: gwajin ICT, gwajin FCT, gwajin tsufa, gwajin gajiya, gwada yanayi mai tsauri da waɗannan nau'ikan guda biyar.

1, ICT gwajin yafi hada da kewaye on-off, ƙarfin lantarki da halin yanzu dabi'u da kalaman kwana, amplitude, amo, da dai sauransu.

2, Gwajin FCT yana buƙatar aiwatar da harbe-harbe na shirin IC, kwaikwayi aikin kwamitin PCBA gabaɗaya, nemo matsalolin da ke cikin kayan masarufi da software, kuma an sanye su da kayan aikin samar da facin da suka dace da takin gwaji.

3, da gajiya gwajin ne yafi to samfurin PCBA hukumar, da kuma gudanar da high-mita da kuma dogon lokaci aiki na aikin, lura ko gazawar faruwa, yi hukunci da yuwuwar gazawar a cikin gwajin, da kuma mayar da martani da aiki yi na PCBA. jirgi a cikin kayan lantarki.

4, gwajin a cikin yanayi mai tsauri shine galibi don fallasa hukumar PCBA zuwa zafin jiki, zafi, digo, fantsama, girgiza ƙimar iyaka, don samun sakamakon gwajin bazuwar samfuran, don tabbatar da amincin duk hukumar PCBA. tsari.

5, tsufa gwajin ne yafi iko PCBA hukumar da lantarki kayayyakin na dogon lokaci, kiyaye shi aiki da kuma lura ko akwai wani gazawar gazawar, bayan tsufa gwajin lantarki kayayyakin za a iya sayar a batches.PCBA tsari ne hadaddun, a cikin samar da kuma Tsarin sarrafawa, ana iya samun matsaloli daban-daban saboda kayan aiki mara kyau ko aiki, ba zai iya ba da garantin cewa samfuran da aka samar sun cancanta ba, don haka ya zama dole don aiwatar da gwajin PCB don tabbatar da cewa kowane samfurin ba zai sami matsalolin inganci ba.

Yadda ake gwada pcba

PCBA gwajin hanyoyin gama gari, akwai galibi masu zuwa:

1. Gwajin hannu

Gwajin da hannu shine dogaro kai tsaye ga hangen nesa don gwadawa, ta hanyar hangen nesa da kwatanta don tabbatar da shigar da abubuwan da aka gyara akan PCB, ana amfani da wannan fasaha sosai. Koyaya, babban adadin da ƙananan abubuwan haɗin gwiwa suna sa wannan hanyar ta zama ƙasa da ƙasa da dacewa. Bugu da ƙari, wasu lahani na aiki ba su da sauƙi a gano kuma tattara bayanai yana da wahala. Ta wannan hanyar, ana buƙatar ƙarin hanyoyin gwaji na ƙwararru.

2, Duban gani ta atomatik (AOI)

Ganewar gani ta atomatik, wanda kuma aka sani da gwajin hangen nesa ta atomatik, ana yin ta ta na'urar ganowa ta musamman, ana amfani da ita kafin da bayan reflux, kuma polarity na abubuwan da aka gyara ya fi kyau. Sauƙi don bin ganewar asali hanya ce ta gama gari, amma wannan hanyar ba ta da kyau don gano gajeriyar kewayawa.

3, injin gwajin allura mai tashi

Gwajin allura ya sami shahara a cikin ƴan shekarun da suka gabata saboda ci gaban daidaiton injina, saurin gudu, da aminci. Bugu da ƙari, buƙatun na yanzu don tsarin gwaji tare da saurin juyawa da ƙarfin jig-free da ake buƙata don masana'anta na samfuri da ƙananan ƙira ya sa gwajin allura mai tashi ya zama mafi kyawun zaɓi.4. Gwajin aiki

Wannan hanya ce ta gwaji don takamaiman PCB ko takamaiman naúrar, wanda kayan aiki na musamman ke yi. Akwai manyan nau'ikan gwaji na aiki guda biyu: Gwajin Samfur na Ƙarshe da Zazzafan izgili.

5. Manufacturing Defect Analyzer (MDA)

Babban fa'idodin wannan hanyar gwajin sune ƙananan farashi na gaba, babban fitarwa, sauƙin bin ganewar asali da sauri cikakken gajeren kewayawa da gwajin kewayawa. Rashin hasara shine ba za a iya yin gwajin aiki ba, yawanci babu alamar ɗaukar hoto, dole ne a yi amfani da kayan aiki, kuma farashin gwajin yana da yawa.

pcba gwajin kayan aiki

Kayan aikin gwajin PCBA na yau da kullun sune: Gwajin ICT akan layi, gwajin aikin FCT da gwajin tsufa.

1, Gwajin ICT akan layi

ICT na'urar gwaji ce ta kan layi ta atomatik, wanda ke da aikace-aikace da yawa kuma yana da sauƙin aiki. ICT mai ganowa ta atomatik akan layi shine galibi don sarrafa tsarin samarwa, yana iya auna juriya, ƙarfin ƙarfi, inductance, haɗaɗɗiyar da'ira. Yana da tasiri musamman don gano buɗaɗɗen kewayawa, gajeriyar kewayawa, lalacewar kayan aiki, da sauransu, daidaitaccen wurin kuskure, kulawa mai sauƙi.

2. Gwajin aikin FCT

Gwajin aikin FCT shine don samar da yanayin aiki na kwaikwayo kamar motsa jiki da kaya don hukumar PCBA, da samun sigogi daban-daban na hukumar don gwada ko sigogin aikin hukumar sun cika ka'idodin ƙira. Abubuwan gwajin aikin FCT sun haɗa da ƙarfin lantarki, halin yanzu, ƙarfi, ƙarfin wutar lantarki, mitar, sake zagayowar aiki, haske da launi, gano halaye, tantance murya, ma'aunin zafin jiki, ma'aunin matsa lamba, sarrafa motsi, FLASH da EEPROM.

3. Gwajin tsufa

Gwajin tsufa yana nufin tsarin simintin abubuwa daban-daban da ke cikin ainihin yanayin amfani da samfur don aiwatar da gwajin haɓaka yanayin daidai. Ana iya amfani da hukumar PCBA na samfuran lantarki na dogon lokaci don kwaikwayi amfani da abokin ciniki, gwajin shigarwa/fitarwa don tabbatar da cewa aikin sa ya dace da buƙatun kasuwa.

Wadannan nau'ikan kayan gwaji guda uku sun zama ruwan dare a cikin tsarin PCBA, kuma gwajin PCBA a cikin tsarin sarrafa PCBA na iya tabbatar da cewa kwamitin PCBA da aka kai wa abokin ciniki ya cika buƙatun ƙira na abokin ciniki kuma yana rage ƙimar gyara sosai.