PCBA ndiyo chidimbu cheakadhindwa redunhu bhodhi musangano muChirungu, kureva kuti, PCB isina chinhu inopfuura neSMT kurodha kana iyo yese process ye dip plug-in, iyo inonzi PCBA kwenguva pfupi Iyi inowanzoshandiswa nzira yekunyora muChina, nepo nzira yekunyora muEurope neAmerica iri pcb’a ine “’”, inodaidzwa kuti dimikira repamutemo. Heino nguva yakareba sei PCBA kugadzira zvigadzirwa zvinogona kuchengetwa.
Inguva yakareba sei PCBA yakagadziriswa zvigadzirwa zvichengetwe.

PCBA inoreva bhodhi redunhu rine zvinhu zvakasiyana-siyana zvakasungwa pamusoro paro. Vanhu vanowanzoteerera kuvimbika kwayo kwenguva yakareba uye yakakwirira-frequency kushanda, uye dzimwe nguva inoda kuziva mararamiro ayo esherufu. Kazhinji, hupenyu hwekuchengetera kwePCBA yakagadziriswa zvigadzirwa ndeye 2-10 makore, ayo anonyanya kukanganiswa nezvinhu zvinotevera:
1. Zvakatipoteredza
Humid uye ine guruva nharaunda zviri pachena kuti haikodzeri kuchengetedzwa kwePCBA. Izvi zvinhu zvinomhanyisa oxidation uye tsvina yePCBA uye kupfupisa hupenyu hwesherufu yePCBA. Kazhinji, zvinokurudzirwa kuchengeta PCBA munzvimbo yakaoma, isina guruva ine tembiricha isingaperi ye25 ℃.
2. Kuvimbika kwezvikamu
Kuvimbika kwezvikamu uye zvikamu pane akasiyana PCBAs zvakare kunotaridza zvakanyanya hupenyu hwesherufu yePCBA. Zvikamu uye zvikamu zvine zvemhando yepamusoro zvemhando yepamusoro uye maitiro ane kugona kupikisa nharaunda dzakaomarara, iine huwandu hwakakura hwekugona uye yakasimba oxidation kuramba, iyo inopawo vimbiso yekugadzikana kwePCBA.
3. Material uye pamusoro pekurapa maitiro edunhu bhodhi
Izvo zvinhu zvebhodhi redunhu pachazvo hazvisi nyore kukanganiswa nenharaunda, asi maitiro ayo epamusoro ekurapa anokanganiswa zvakanyanya nemhepo oxidation. Kurapwa kwakanaka kwepamusoro kunogona kurebesa hupenyu hwesherufu yePCBA.
4. PCBA bhodhi rinomhanya mutoro
PCBA operation load ndiyo inonyanya kukosha yehupenyu hwayo hwekuchengeta. The oparesheni pamwe yakakwirira frequency uye mukuru mutoro achava anoenderera mukuru kunokanganisa pamusoro redunhu bhodhi mitsetse uye zvinoriumba, izvo zvichava nyore kuti oxidize pasi pesimba kudziyisa, zvichiita pfupi redunhu uye rakazaruka redunhu panguva refu kushanda. Naizvozvo, maparamita anoshanda ePCBA board anofanirwa kunge ari mukati mepakati pezvikamu uye kudzivirira kuva pedyo nepamusoro kukosha, iyo inogona kunyatso chengetedza PCBA uye kuwedzera hupenyu hwayo hwekuchengetera.
Hupenyu hwesherufu yePCBA yakagadziridzwa zvigadzirwa ibasa rakazara, rinoda kutevedzera magadzirirwo esainzi, magadzirirwo ekugadzira uye mashandiro ekuita, kuti awedzere hupenyu hwesherufu.
Izvo zviri pamusoro ndizvo zvakatemwa uye zvinhu zvinogona kuchengeterwa PCBA kugadzira zvigadzirwa. Ndinovimba inogona kukubatsira.

Ikozvino kune midziyo yemagetsi yakawanda, chero bedzi zvigadzirwa zvinogona kushandiswa zvinoda PCB, vagadziri vazhinji vezvigadzirwa zvemagetsi havazivi kubhadharisa PCBA kugadzirisa. PCBA yekugadzirisa mari inoumbwa neiyo.
PCBA chigamba kugadzirisa mutengo kuumbwa
1. PCB mubhadharo (kana iwe uchizvipa iwe pachako, haichabhadhariswi);
2. mari yekutenga chikamu (kana iwe uchipawo izvi iwe pachako, zvakare mahara);
3. SMT yekugadzirisa mari (SMD chip + dip post welding);
4. PCBA test mubhadharo uye mari yegungano.
Mutengo wekuverenga wePCBA chigamba kugadzirisa
1, PCB bhodhi mubhadharo
Kana iwe uchida kutsvaga PCBA processor kuti ikubatsire kugadzirisa, unofanirwa kupa PCB mafaera uye BOM runyorwa. Iyo PCBA processor ichakubatsira iwe kugadzira PCB isina mabhodhi zvinoenderana nePCB mafaera ako. Panguva ino, chikamu chekutanga chemutengo, mubhadharo webhodhi wePCB, uchaitwa. Mutengo wePCB board unoenderana nekuoma kwemaitiro ebhodhi. Semuenzaniso, mitengo ye4-layer board, 8-layer board, aluminium substrate uye kabhoni inki board zvakasiyana. Ehe, iwe unogona zvakare kuwana yako PCBA bhodhi fekitori yekugadzirisa. Mutengo wacho hauna kudhura zvakanyanya. Mushure mezvose, panofanira kuva nekuderedzwa kwekushandira pamwe kwenguva refu kwevamwe. Ndapota inzwa wakasununguka kuva mudzvanyiriri wemuno.
2, Mari yekutenga chikamu
PCBA chigamba kugadzirisa chikamu II mutengo, chikamu chekutenga mutengo. Mugadziri wekugadzirisa anotenga zvikamu uye zvikamu zvaunoda maererano neBOM. Paunenge uchitenga zvikamu uye zvikamu, nekuda kwe diski kurodha sevanopikisa uye capacitors uye SMT chip kurasikirwa (sekusvetuka bhodhi risina kunaka, kusabvisa tape yekoil munguva, nezvimwewo), inenge 5% yekurasikirwa kwezvinhu kunofanira kuvharwa; Vagadziri vane kushandira pamwe kwenguva refu nevagadziri vechikamu, saka mutengo uchave wakaderera.
3, SMT mubhadharo wekugadzirisa (SMD chip + dip post welding)
Paunenge uchiverenga iyo SMT mubhadharo wekugadzirisa, unofanira kutanga waona kuti yakakura sei batch yako yekugadzirisa. Kana yakakura kupfuura 2000pic, hapana chikonzero chekuchaja mari yeinjiniya, zvikasadaro pachave nekuwedzera mari yeinjiniya. Zvadaro, verenga nhamba yezvibodzwa zvakapetwa nemutengo weyuniti yemapoinzi. Mutengo wepatch points uri pakati pe0.01-0.015 yuan. Huwandu hwemapoinzi hunoverengerwa zvinoenderana nemapini maviri eSMT chigamba zvinhu uye imwe pini ye dip plug-in. Wanza zviri zviviri. Kugadziriswa kunogona kukamurwa kuva:
1.0402 element inoverengerwa se 0.015 per dot * mari 0603-1206 zvikamu zvinoverengerwa ne 0.015 poindi * mari.
2. pini imwe yeplug-in zvinhu ipfungwa; Inoverengerwa se 0.015 poindi * mari.
3. mapini mana emhando ye slot ipfungwa imwe; Inoverengerwa se 0.015 poindi * mari.
4. common IC, 4 pini i1 point; Inoverengerwa se 0.015 poindi * mari.
5. gobvu pini IC, mapini maviri ipfungwa imwe; Inoverengerwa se 0.015 poindi * mari.
6. makumbo maviri eBGA ipfungwa imwe; Inoverengerwa se 0.015 poindi * mari.
7. muchina wakanamirwa zvinhu zvakawanda zvichaverengwa nekupeta kaviri huwandu hwezvikamu.
8. mari yekuwedzera inoverengwa se20 yuan * paawa
9. iyo quotation haisanganisi muripo webvunzo, muripo wekufambisa, mutero, nezvimwe.
4, mubhadharo wePCBA uye mubhadharo wegungano
Mubhadharo wePCBA bvunzo unowanzo kuverengerwa se2 yuan pandiro, pamwe nePCBA gungano uye mubhadharo wekurongedza, unowanzoita 0.8 yuan pandiro. Ichi chikamu chechina chemuripo.
Wedzera kumusoro zvikamu zvina zvemutengo, inova PCBA chigamba chekugadzirisa mutengo.
Izvo zviri pamusoro apa nzira yekuchaja yePCBA chigamba kugadzirisa? Nhanganyaya yekuumbwa kwePCBA chigamba chekugadzirisa mitengo, ndinovimba inogona kukubatsira, uye ndinoda kuziva zvakawanda nezve. PCBA kugadzirisa ruzivo.