Enwere ike kewaa usoro mmepụta PCBA n'ọtụtụ isi usoro:
PCB imewe na mmepe → SMT patch nhazi → DIP nkwụnye nkwụnye → PCBA ule → mgbochi mkpuchi atọ → okokụre ngwaahịa mgbakọ.
Nke mbụ, PCB imewe na mmepe
1.Product ina
Atụmatụ ụfọdụ nwere ike nweta uru ụfọdụ bara uru na ahịa dị ugbu a, ma ọ bụ ndị na-anụ ọkụ n'obi chọrọ imezu ihe nhazi nke onwe ha, mgbe ahụ, a ga-emepụta ngwaahịa ngwaahịa kwekọrọ;
2. Nhazi na mmepe
Ejikọtara ya na mkpa ngwaahịa nke ndị ahịa, ndị injinia R & D ga-ahọrọ mgbawa kwekọrọ na nchikota mpụga nke PCB ngwọta iji nweta mkpa ngwaahịa, usoro a dị ogologo ogologo, a ga-akọwa ọdịnaya dị ebe a iche iche;
3, sample mmepụta mmepụta
Mgbe mmepe na imepụta PCB nke mbụ, onye zụrụ ya ga-azụta ihe ndị kwekọrọ na BOM nke nyocha na mmepe na-enye iji mepụta mmepụta na debugging nke ngwaahịa ahụ, a na-ekewa mmepụta nnwale n'ime ihe akaebe (10pcs). nke abụọ proofing (10pcs), obere ogbe mmepụta mmepụta (50pcs ~ 100pcs), nnukwu ogbe mmepụta mmepụta (100pcs ~ 3001pcs), na mgbe ahụ ga-abanye uka mmepụta ogbo.
Nke abụọ, SMT patch nhazi
A na-ekewa usoro nke SMT patch nhazi n'ime: ihe eji eme achịcha → nweta ihe nkwụnye ihe → SPI → ịrị elu → reflow soldering → AOI → mmezi
1. Ihe eji eme achịcha
N'ihi na ibe, PCB mbadamba, modul na pụrụ iche ihe na-na ngwaahịa maka ihe karịrị ọnwa 3, ha ga-eme achịcha na 120 ℃ 24H. Maka igwe okwu MIC, ọkụ ọkụ na ihe ndị ọzọ na-adịghị eguzogide oke okpomọkụ, a ga-esi ya na 60 ℃ 24H.
2, nweta tapawa solder (laghachite okpomọkụ → edemede → iji)
N'ihi na anyị solder tapawa na-echekwara na gburugburu ebe obibi nke 2 ~ 10 ℃ ruo ogologo oge, ọ chọrọ ka a laghachi na okpomọkụ ọgwụgwọ tupu ojiji, na mgbe nloghachi okpomọkụ, ọ chọrọ ka-akpalite na a blender, na mgbe ahụ, ọ nwere ike. ga-ebipụta.
3. Nchọpụta SPI3D
Mgbe e bipụtachara tapawa solder na bọọdụ sekit, PCB ga-erute ngwaọrụ SPI site na eriri ebu, na SPI ga-achọpụta oke, obosara, ogologo nke mpempe akwụkwọ na-ebi akwụkwọ na ọnọdụ dị mma nke elu tin.
4. Ugwu
Mgbe PCB gafere na igwe SMT, igwe ahụ ga-ahọrọ ihe kwesịrị ekwesị wee mado ya na ọnụọgụ ọnụọgụ kwekọrọ site na mmemme setịpụrụ;
5. ịgbado ọkụ reflow
The pcb jupụtara ihe aga n'ihu reflow ịgbado ọkụ, na-agafe iri nzọụkwụ okpomọkụ zones si 148 ℃ ka 252 ℃ n'aka, n'enweghị bonding anyị components na PCB osisi ọnụ;
6, nnwale AOI n'ịntanetị
AOI bụ akpaka ngwa anya detector, nke nwere ike ịlele PCB osisi dị nnọọ si na ọkụ site elu-definition scanning, na ike ịlele ma e nwere obere ihe na PCB osisi, ma ihe na-gbanwee, ma solder nkwonkwo jikọọ n'etiti. ihe mejupụtara ya na ma mbadamba nkume a kwụsịrị.
7. Ndozi
Maka nsogbu ndị dị na bọọdụ PCB dị na AOI ma ọ bụ aka, ọ dị mkpa ka onye injinia na-arụzi ya rụzie ya, a ga-eziga bọọdụ PCB arụziri na nkwụnye DIP yana bọọdụ offline nkịtị.
Atọ, nkwụnye DIP
A na-ekewa usoro nkwụnye DIP n'ime: ịkpụzi → nkwụnye → ịkwanye ebili mmiri → ịkpụ ụkwụ → ijide tin → efere ịsa → nyocha dị mma
1. Plastic ịwa ahụ
Ihe nkwụnye nkwụnye anyị zụtara bụ ihe ọkọlọtọ niile, na ogologo pin nke ihe anyị chọrọ dị iche iche, n'ihi ya, anyị kwesịrị ịkpụzi ụkwụ nke ihe ndị ahụ n'ihu, ka ogologo na ọdịdị nke ụkwụ dị mma maka anyị. iji rụọ nkwụnye ma ọ bụ biputere ịgbado ọkụ.
2. Nkwụnye
A ga-etinye ihe ndị emechara dịka ndebiri kwekọrọ;
3, ire ere
A na-etinye efere etinyere na jig ahụ n'ihu nke ire ere. Nke mbụ, a ga-efesa mmiri ahụ na ala iji nyere aka ịgbado ọkụ. Mgbe efere ahụ rutere n'elu ọkụ tin, mmiri mmiri dị na oven ga-ese n'elu ma kpọtụrụ pin.
4. Bee ụkwụ
N'ihi na tupu nhazi ihe ga-enwe ụfọdụ kpọmkwem chọrọ iji wepụta a dịtụ ogologo ntụtụ, ma ọ bụ na-abata ihe n'onwe ya adịghị adaba hazie, pin ga trimmed ka kwesịrị ekwesị elu site n'aka trimming;
5. Jide tin
Enwere ike inwe ụfọdụ ihe ọjọọ dị ka oghere, oghere, ịgbado ọkụ, ịgbado ọkụ ụgha na ihe ndị ọzọ na ntụtụ nke bọọdụ PCB anyị mgbe ọkụ gachara. Ihe njide tin anyị ga-arụkwa ha site na nrụzi aka.
6. Na-asa osisi
Mgbe ebili mmiri na-ere ahịa, nrụzi na njikọ ndị ọzọ na-aga n'ihu, a ga-enwe ụfọdụ flux ma ọ bụ ngwongwo ndị ọzọ zuru ezu na-ejikọta na pin ọnọdụ nke osisi PCB, nke na-achọ ka ndị ọrụ anyị hichaa elu ya;
7. Nyocha nke ọma
PCB osisi components njehie na leakage ego, erughị eru PCB osisi kwesịrị ịrụzi, ruo mgbe ruru eru ịga n'ihu na-esote nzọụkwụ;
4. PCBA ule
Enwere ike ikewa ule PCBA n'ime ule ICT, ule FCT, ule ịka nká, ule ịma jijiji, wdg
Nnwale PCBA bụ nnukwu ule, dịka ngwaahịa dị iche iche si dị, ihe ndị ahịa chọrọ, ule pụtara eji dị iche. Nnwale ICT bụ ịchọpụta ọnọdụ ịgbado ọkụ nke akụrụngwa na ọnọdụ on-apụ nke ahịrị, ebe ule FCT bụ ịchọpụta ntinye na mmepụta nke bọọdụ PCBA iji lelee ma ha ruru ihe achọrọ.
Ise: PCBA atọ mgbochi mkpuchi
PCBA atọ mgbochi mkpuchi usoro nzọụkwụ bụ: brushing n'akụkụ A → elu akọrọ → brushing n'akụkụ B → ụlọ okpomọkụ ọgwụgwọ 5. Spraying ọkpụrụkpụ:
0.1mm-0.3mm6. A ga-arụ ọrụ mkpuchi niile na okpomọkụ na-erughị 16 ℃ na iru mmiri n'okpuru 75%. PCBA atọ mgbochi mkpuchi bụ ka a otutu, karịsịa ụfọdụ okpomọkụ na iru mmiri ọzọ obi ọjọọ gburugburu ebe obibi, PCBA mkpuchi atọ mgbochi agba nwere elu mkpuchi, mmiri mmiri, ntapu, ujo, ájá, corrosion, mgbochi ịka nká, mgbochi mildew, mgbochi. akụkụ rụrụ na mkpuchi mkpuchi corona iguzogide arụmọrụ, nwere ike ịgbatị oge nchekwa nke PCBA, mwepu nke mpụga ozize, mmetọ na na. Usoro ịgbasa bụ usoro mkpuchi a na-ejikarị eme ihe na ụlọ ọrụ.
Mgbakọ ngwaahịa agwụla
7.The mkpuchi PCBA osisi na ule OK na-agbakọta maka shei, na mgbe ahụ dum igwe na-aka nká na ule, na ngwaahịa na-enweghị nsogbu site na ịka nká ule nwere ike mbupu.
Mmepụta PCBA bụ njikọ na njikọ. Nsogbu ọ bụla na usoro mmepụta pcba ga-enwe mmetụta dị ukwuu na àgwà zuru oke, na usoro ọ bụla kwesịrị ka a na-achịkwa ya nke ọma.