PCB isekhethi evulekile iyinkinga abakhiqizi be-PCB abazohlangana nayo cishe nsuku zonke, obekukhathaza abasebenzi bokukhiqiza nabaphathi bekhwalithi. Izinkinga ezibangelwa yiyo ukugcwalisa izinto ngenxa yokunganele kwenani lokuthunyelwa, ukubambezeleka kokulethwa kanye nezikhalazo zamakhasimende, okunzima ukuxazululwa ngabangaphakathi embonini.

Isifunda esivulekile se-PCB empeleni amaphuzu amabili (A no-B) okufanele axhunywe, kepha angaxhunyiwe.

Izici ezine ezivulekile ze-PCB

1. Isifunda esivulekile esiphindaphindwayo

Kubonakala ngesifunda esifanayo esivulekile endaweni efanayo cishe kuwo wonke amabhodi e-PCB, aphindaphindwa kaningi, futhi nenani lokuvezwa kokubi kuyafana. Isizathu sokwakhiwa ukuthi ipuleti yokuchayeka inamaphutha endaweni efanayo neyesifunda esivulekile sebhodi. Kulokhu, ipuleti lokuchayeka kufanele lisulwe, futhi ukutholwa kwe-AOI kwamabhodi okuqala nawokugcina kufanele kuqiniswe ukuqinisekisa ukuthi ibhodi le-PCB lokuqala lilungile ngaphambi kokuvezwa.

2. Igebe livulekile

Isici salesi sifunda esivulekile ukuthi kukhona inothi ocingweni, futhi ububanzi bomugqa osele bungaphansi noma bulingana no-1/2 wobubanzi bomugqa ojwayelekile ngenxa yenotshi, imvamisa isesimweni esinqunyiwe, ekhombisa into ephindaphindwayo. Kubuye kubangelwe ukukhubazeka kupuleti lokuchayeka, ukuze ibhodi le-PCB futhi linegebe endaweni efanayo yocingo. IPetter PCB xiaobian iphakamisa ukuthi indlela yokuqeda ukushintsha ifilimu entsha yokuvezwa, nokuqinisa ukutholwa kwe-AOI kunqubo yokuvezwa.

3. Hlanza isifunda esivulekile

Endaweni ethile, kunezintambo eziningana ezibonisa ukwenzeka kokuncipha (kancane kancane ukuncipha), ezinye zivulekile, ezinye azivuliwe, kepha izintambo zincane kakhulu (zingaphansi kobubanzi obuncane bezintambo obudingwa yikhasimende) futhi kufanele zikhutshwe. Isizathu salokhu kukhubazeka ukuthi ukuxhumana phakathi kwefilimu nefilimu eyomile esetshenziswa ngumkhiqizi we-PCB yokuvezwa akusondele ngokwanele, futhi kukhona umoya phakathi, okungukuthi, ukuvuthwa akulungile ngemuva kokuthi itafula lokuchayeka livaliwe , futhi i-vacuum degree ayikwazi ukuhlangabezana nezidingo, okuholela ekunciphisweni kocingo noma esifundeni esivulekile ngesikhathi sokuchayeka.

4. Sula uvule

Isici sayo ukukwazi ukubona umkhondo wokuthi ucingo luklwebhiwe ngamandla angaphandle ngokusobala, futhi ngaleyo ndlela kubangele isekethe evulekile. Isizathu singenxa yokusebenza okungafanele (ngokwesibonelo, indlela engafanele yokuthatha ibhodi ngesikhathi sokukhiqizwa kwe-PCB) noma imbangela yomshini, futhi ucingo lulimele ukwenza isekhethi evulekile.

Ngenxa yezimbangela eziyinkimbinkimbi zamaphutha wesekethe angaphandle, kunamacala amaningi okungenzeka, angafakwanga ohlwini lapha, kepha iningi lamaphutha atholakala epuletini egqoke ithusi, ifilimu, ifilimu eyomile nezinye izinto, noma ekuvezweni, ukuthuthukiswa, ukugcwala nezinye izinqubo ezingajwayelekile.