Ikibaho cyiza cya PCBA cyumuzunguruko DIP icomeka muguhitamo kugurisha kugurisha gusudira bigomba gukurikiza ibisabwa!
Muburyo bwa gakondo bwo guteranya ibikoresho bya elegitoronike, tekinoroji yo gusudira ikoreshwa muri rusange mu gusudira ibice byanditse byanditseho ibintu byinjijwe (PTH).
Kugurisha imiyoboro ya DIP ifite ibibi byinshi:
1. Ubucucike bwinshi, bwiza-bwuzuye SMD ibice ntibishobora gukwirakwizwa hejuru yo gusudira;
2. Hariho ibiraro byinshi no kubura kugurisha;
3.Flux igomba guterwa; ikibaho cyacapwe kirahindurwa kandi gihindurwa nigitangaza kinini cyumuriro.
Mugihe ubucucike bwumuzunguruko bwubu bugenda bwiyongera, byanze bikunze ibice byinshi bya SMD bizagabanywa hejuru yubucuruzi. Uburyo bwo kugurisha imiraba gakondo nta bushobozi bwo gukora ibi. Mubisanzwe, SMD ibice byo kugurisha birashobora kugarurwa kugurishwa ukwe. , hanyuma hanyuma ukoreshe intoki gusana amacomeka asigaye ahuza, ariko harikibazo cyo kugurisha nabi kugurisha hamwe.
Mugihe kugurisha ibice byacukuwe (cyane cyane ubushobozi bunini cyangwa ibice byiza-byuzuye) bigenda bigorana cyane cyane kubicuruzwa bifite isasu ridafite ubuntu kandi byizewe cyane, ubwiza bwo kugurisha intoki ntibushobora kuba bujuje ubuziranenge bwo hejuru. ibikoresho by'amashanyarazi. Ukurikije ibisabwa byumusaruro, kugurisha umuraba ntibishobora kuzuza byimazeyo umusaruro nogukoresha amatsinda mato hamwe nubwoko bwinshi mugukoresha byihariye. Gushyira mu bikorwa ibicuruzwa byatoranijwe byateye imbere byihuse mumyaka yashize.
Kubibaho byumuzunguruko wa PCBA hamwe na THT gusa isobekeranye, kubera ko tekinoroji yo kugurisha imiraba iracyari uburyo bwiza bwo gutunganya muri iki gihe, ntabwo ari ngombwa gusimbuza kugurisha imiraba hamwe no kugurisha byatoranijwe, bifite akamaro kanini. Nyamara, kugurisha byatoranijwe nibyingenzi kubibaho byikoranabuhanga bivanze kandi, bitewe n'ubwoko bwa nozzle ikoreshwa, tekinike yo kugurisha imiraba irashobora kwigana muburyo bwiza.
Hariho inzira ebyiri zitandukanye zo kugurisha guhitamo: gukurura kugurisha no kugurisha.
Guhitamo gukurura kugurisha bikorwa bikorwa kumurongo umwe muto wo kugurisha. Gukurura kugurisha gukwiranye no kugurisha ahantu hafunganye cyane kuri PCB. Kurugero: kugurisha kugiti cyawe cyangwa pin, umurongo umwe wibipapuro birashobora gukururwa no kugurishwa.
Ikoreshwa rya tekinoroji yo kugurisha ni tekinoroji nshya yateye imbere mu ikoranabuhanga rya SMT, kandi isura yayo ahanini yujuje ibyangombwa bisabwa byo guterana kwinshi kandi bivanze na PCB zitandukanye. Kugurisha ibicuruzwa byatoranijwe bifite ibyiza byo gushiraho ibicuruzwa byigenga bigurishwa, kugabanuka gukabije kuri PCB, gutera flux nkeya, no kugurisha gukomeye. Igenda ihinduka buhoro buhoro tekinoroji yo kugurisha PCBs igoye.
Nkuko twese tubizi, icyiciro cyibishushanyo mbonera cyumuzingi wa PCBA kigena 80% yikiguzi cyibicuruzwa. Mu buryo nk'ubwo, ibintu byinshi biranga ibintu byagenwe mugihe cyagenwe. Kubwibyo, ni ngombwa cyane gusuzuma byimazeyo ibintu byakozwe mubikorwa bya PCB byumuzunguruko.
DFM nziza ninzira yingenzi kubakora PCBA gushiraho ibikoresho kugirango bagabanye inenge yinganda, koroshya inzira yinganda, kugabanya ingendo zinganda, kugabanya ibiciro byinganda, kunoza igenzura ryiza, kuzamura isoko ryibicuruzwa, no kuzamura ibicuruzwa byizewe kandi biramba. Irashobora gufasha ibigo kubona inyungu nziza hamwe nishoramari rito kandi bikagera kubisubizo kabiri hamwe nigice cyimbaraga.
Iterambere ryibice byubuso kugeza uyu munsi bisaba abajenjeri ba SMT gusa kuba abahanga mubuhanga bwogutegura ibizunguruka, ariko kandi bakagira ubumenyi bwimbitse nuburambe bufatika mubuhanga bwa SMT. Kuberako uwashushanyije udasobanukiwe nibiranga imigendekere yumugurisha nuwagurishije akenshi biragoye kumva impamvu namahame yo kuraro, gukubita, amabuye yimva, gukubita, nibindi, kandi biragoye gukora cyane kugirango ushushanye igishushanyo cya padi muburyo bwiza. Biragoye gukemura ibibazo bitandukanye byubushakashatsi duhereye kubishushanyo mbonera, gukora ubuhamya, no kugabanya ibiciro. Igisubizo cyateguwe neza kizatwara amafaranga menshi yo gukora no kugerageza niba DFM na DFT (igishushanyo mbonera) gikennye.
