Impilo yeshelufu ye-PCB?Isikhathi sokubhaka nezinga lokushisa?
Isikhathi sokugcina se-PCB, kanye nezinga lokushisa nesikhathi sokusebenzisa ihhavini yezimboni ukubhaka i-PCB konke kulawulwa yimboni. Ithini impilo yeshelufu ye-PCB?Futhi indlela yokunquma isikhathi sokubhaka kanye nezinga lokushisa? 1. Ukucaciswa kokulawula kwe-PCB 1. Ukuqaqa nokugcinwa kwe-PCB (1) I Ibhodi le-PCB ingasetshenziswa ngokuqondile ku-inthanethi phakathi nezinyanga ezi-2 zosuku lokukhiqiza lwebhodi le-PCB elivalwe futhi elingavuliwe (2) Usuku lokukhiqiza ibhodi le-PCB luphakathi kwezinyanga ezi-2, futhi usuku lokukhulula kufanele limakwe ngemva kokukhipha impahla. (3) Idethi yokukhiqiza ibhodi le-PCB iphakathi kwezinyanga ezi-2, ngemva kokuqaqa, kufanele ibe ku-inthanethi futhi isetshenziswe zingakapheli izinsuku ezi-5. 2. PCB ukubhaka (1) Uma i-PCB ivaliwe futhi ingapakishwa izinsuku ezingaphezu kwezi-5 phakathi nezinyanga ezi-2 zosuku lokukhiqiza, sicela ubhake ku-120±5℃ ihora elingu-1. (2) Uma i-PCB ingaphezu kwezinyanga ezi-2 kusukela ngosuku lokukhiqiza, sicela uyibhake ku-120±5℃ ihora elingu-1 ngaphambi kokungena ku-inthanethi. (3) Uma i-PCB inezinyanga ezingu-2-6 idlule usuku lokukhiqiza, sicela uyibhake ku-120±5℃ amahora angu-2 ngaphambi kokungena ku-inthanethi. (4) Uma i-PCB inezinyanga eziyi-6 ukuya onyakeni ongu-1 indala kunosuku lokukhiqiza, sicela ubhake 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 ibhakwe elinye ihora ngaphambi kokuthi isetshenziswe ku-inthanethi. (6) Uma i-PCB ingaphezu konyaka owodwa kusukela ngosuku lokukhiqiza, sicela uyibhake ku-120±5℃ amahora angu-4 ngaphambi kokungena ku-inthanethi, bese uyithumela efekthri ye-PCB ukuze iphinde ifafaze ithini ngaphambi kokungena ku-inthanethi. 3. PCB indlela yokubhaka (1) Ama-PCB amakhulu (ama-PORTS angu-16 nangaphezulu, okuhlanganisa nama-PORTS angu-16) abekwe ngokuvundlile, anenani eliphakeme lezingcezu ze-30 ku-stack.Vula ihhavini phakathi kwemizuzu eyi-10 ngemuva kokuqedwa kokubhaka, khipha i-PCB, futhi uyibeke phansi ukuze iphole ngokwemvelo (isidingo sokucindezela 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 kokubhaka.I-Banwan fixture) 2. Ukulondolozwa nokubhaka kwama-PCB ezifundeni ezahlukene Isikhathi esiqondile sokugcina kanye nezinga lokushisa lokubhaka le-PCB akuhlobene kuphela namandla okukhiqiza kanye nenqubo yokukhiqiza yomkhiqizi we-PCB, kodwa futhi unobudlelwano obuhle nesifunda. I-PCB eyenziwe inqubo ye-OSP kanye nenqubo yokucwiliswa kwegolide elimsulwa 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.NgoMashi no-April unyaka ngamunye, kuyoba nesimo sezulu “esibuyela eningizimu,” futhi liyana 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. Isikhathi sokugcina se-PCB, isikhathi sokubhaka kanye nezinga lokushisa, izinkinga ezithile zidinga ukucutshungulwa ngokuningiliziwe, futhi ukukhetha okuqondile kufanele kwenziwe ngesisekelo sokuphathwa nokulawulwa kwe-PCB, ngokuya ngomthamo wokukhiqiza, inqubo, isifunda kanye nenkathi yabakhiqizi abahlukene. . 
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