• I. PCB Control Specification

• 1. Ukuqaqa kanye nokugcinwa kwe-PCB(1) Ibhodi le-PCB elivalwe futhi lingavulwa lingasetshenziswa ngokuqondile ku-inthanethi phakathi nezinyanga ezi-2 zosuku lokukhiqiza(2) Usuku lokukhiqiza lwebhodi le-PCB luphakathi kwezinyanga ezi-2, futhi usuku lokukhulula kufanele limakwe ngemva kokuqaqa.(3) Idethi yokukhiqiza ibhodi le-PCB iphakathi kwezinyanga ezi-2, ngemva kokuqaqa, kufanele ibe ku-inthanethi futhi isetshenziswe zingakapheli izinsuku ezi-5.
  2. I-PCB Postcure
• (1) Uma i-PCB ivaliwe futhi ingapakishwa isikhathi esingaphezu kwezinsuku ezi-5 phakathi nezinyanga ezi-2 zosuku lokukhiqiza, sicela uyithumele ku-120 ±5°C ihora elingu-1.(2) Uma i-PCB ingaphezu kwezinyanga ezi-2 kusukela ngosuku lokukhiqiza, sicela uyibuyisele ku-120 ±5°C ihora elingu-1 ngaphambi kokungena ku-inthanethi.
  (3) Uma i-PCB inezinyanga ezi-2 kuye kweziyi-6 idlule usuku lokukhiqiza, sicela ubuyisele ku-120 ±5°C amahora angu-2 ngaphambi kokungena ku-inthanethi.
  (4) Uma i-PCB inezinyanga eziyisi-6 kuya onyakeni ongu-1 idlule usuku lokukhiqiza, sicela uyibuyisele ku-120 ±5°C amahora angu-4 ngaphambi kokungena ku-inthanethi.
  (5) I-PCB ebhakiwe kufanele isetshenziswe zingakapheli izinsuku ezi-5 (ifakwe ku-IR REFLOW), futhi i-PCB kufanele imiswe elinye ihora ngaphambi kokuthi isetshenziswe ku-inthanethi.
  (6) Uma i-PCB ingaphezu konyaka owodwa kusukela osukwini lokukhiqiza, sicela uyibuyisele ku-120 ±5°C amahora angu-4 ngaphambi kokungena ku-inthanethi, bese uyithumela efekthri ye-PCB ukuze ifafaze kabusha ithini ngaphambi kokungena ku-inthanethi.3. PCB postcure indlela(1) Ama-PCB amakhulu (ama-16 PORTs nangaphezulu, kufaka phakathi ama-PORTs angu-16) abekwe ngokuvundlile, inqwaba yezingcezu ezingafika ku-30, vula ihhavini phakathi nemizuzu eyi-10 ngemva kokuqedwa kokubhaka, khipha i-PCB, futhi uyipholise ngokuvundlile (isidingo ukuze ucindezele i-anti-plate bay fixture)

  (2) Ama-PCB amancane naphakathi nendawo (okuhlanganisa nama-8PORT angaphansi kwe-8PORT) abekwe ngokuvundlile. Inombolo enkulu yesitaki izingcezu ezingama-40. Inombolo yohlobo olume mpo ayikhawulelwe. Vula ihhavini bese ukhipha i-PCB kungakapheli imizuzu eyi-10 ngemuva kokuqedwa kokuphothula. I-Banwan fixture)

II. Ukulondolozwa kanye nokwelashwa kwe-PCBs ezifundeni ezahlukene
Isikhathi esiqondile sokugcina kanye nezinga lokushisa le-postcure le-PCB akuhlobene kuphela namandla okukhiqiza kanye nenqubo yokukhiqiza yomkhiqizi we-PCB, kodwa futhi unobudlelwano obuhle nesifunda.

I-PCB eyenziwe yinqubo ye-OSP kanye nenqubo yegolide yokucwiliswa emsulwa ngokuvamile ineshelufu lezinyanga eziyi-6 ngemva kokupakishwa, futhi ngokuvamile ayinconywa ukubhakwa ngenqubo ye-OSP.

Ukulondolozwa nesikhathi sokubhaka kwe-PCB kuhlobene kakhulu nesifunda. Eningizimu, umswakama uvame ukuba mkhulu, ikakhulukazi e-Guangdong nase-Guangxi. Ngo-March nango-April unyaka ngamunye, kuyoba nesimo sezulu “sokubuyela eningizimu,” esiguqubala futhi linemvula nsuku zonke. Ngokuqhubekayo, kwakunomswakama kakhulu ngalesi sikhathi. I-PCB evezwe emoyeni kumele isetshenziswe kungakapheli amahora angama-24, ngaphandle kwalokho kulula ukuyikhipha i-oxidize. Ngemuva kokuvula okuvamile, kungcono ukuyisebenzisa emahoreni angu-8. Kwamanye ama-PCB adinga ukubhakwa, isikhathi sokubhaka sizoba side. Ezifundeni ezisenyakatho, isimo sezulu ngokuvamile somile, isikhathi sokugcina se-PCB sizoba side, futhi isikhathi sokubhaka singaba sifushane. Izinga lokushisa lokubhaka ngokuvamile liyi-120 ± 5℃, futhi isikhathi sokubhaka sinqunywa ngokuya ngesimo esithile.