• I. PCB Control Specification

• 1. PCB ukukhulula kunye nokugcinwa (1) PCB ibhodi etywiniweyo kwaye ingavulwa inokusetyenziswa ngokuthe ngqo kwi-intanethi phakathi kweenyanga ezi-2 zomhla wokwenziwa (2) Umhla wokwenziwa kwebhodi yePCB ungaphakathi kweenyanga ezi-2, kwaye umhla wokukhutshwa kufuneka uphawulwe emva kokukhulula.(3) Umhla wokwenziwa kwebhodi yePCB ungaphakathi kweenyanga ezi-2, emva kokukhulula, kufuneka ube kwi-intanethi kwaye usetyenziswe kwiintsuku ezi-5.
  2. PCB Postcure
• (1) Ukuba i-PCB itywiniwe kwaye ingapakishwa ngaphezu kweentsuku ezi-5 phakathi kweenyanga ezi-2 zomhla wokwenziwa, nceda ubuyisele kwi-120 ± 5 ° C ngeyure eli-1.(2) Ukuba i-PCB ingaphezulu kweenyanga ezi-2 ukusuka kumhla wokwenziwa, nceda uyibuyisele kwi-120 ± 5 ° C ngeyure eli-1 ngaphambi kokungena kwi-intanethi.
  (3) Ukuba i-PCB i-2 ukuya kwii-6 iinyanga ezidlulileyo kumhla wokuvelisa, nceda u-postcure kwi-120 ± 5 ° C kwiiyure ze-2 ngaphambi kokungena kwi-intanethi.
  (4) Ukuba i-PCB ineenyanga ezi-6 ukuya kwi-1 kunyaka odlulileyo kumhla wokuvelisa, nceda uyibuyisele kwi-120 ± 5 ° C kwiiyure ze-4 ngaphambi kokungena kwi-intanethi.
  (5) I-PCB ebhakiweyo mayisetyenziswe zingaphelanga iintsuku ezi-5 (ifakwe kwi-IR REFLOW), kwaye i-PCB mayifakwe enye iyure ngaphambi kokuba isetyenziswe kwi-intanethi.
  (6) Ukuba iPCB ingaphezu konyaka omnye ukususela kumhla wokwenziwa kwayo, nceda uyigcine nge-120 ±5°C iiyure ezi-4 phambi kokungena kwi-intanethi, uze uyithumele kumzi-mveliso wePCB ukuze iphinde itshizwe ngetoti ngaphambi kokungena kwi-intanethi.3. PCB postcure indlela(1) IiPCB ezinkulu (i-16 PORTs nangaphezulu, kuquka i-16 PORTs) zibekwe ngokuthe tye, i-stack of up to 30 pieces, vula i-oven ngaphakathi kwemizuzu eyi-10 emva kokuba ukubhaka kugqityiwe, khupha i-PCB, kwaye uyipholise ngokuthe tye (isidingo). ukucinezela i-anti-plate bay fixture)

  (2) IiPCB ezincinci kunye neziphakathi (kubandakanywa ne-8PORTs ngaphantsi kwe-8PORT) zibekwe ngokuthe tye. Inani eliphezulu le-stack ngamaqhekeza angama-40. Inani lohlobo oluthe nkqo alinamda. Vula i-oven kwaye ukhuphe i-PCB ngaphakathi kwemizuzu eyi-10 emva kokuba i-postcure igqityiwe. Umdlalo weBanwan)

II. Ukugcinwa kunye nokugcinwa kwe-PCBs kwimimandla eyahlukeneyo
Ixesha elithile lokugcinwa kunye nokushisa kwe-postcure ye-PCB ayinxulumene kuphela nomthamo wemveliso kunye nenkqubo yokuvelisa yomenzi we-PCB, kodwa inobudlelwane obukhulu kunye nommandla.

I-PCB eyenziwe yinkqubo ye-OSP kunye nenkqubo yegolide yokuntywiliselwa esulungekileyo ngokubanzi inobomi beshelufu yeenyanga ezi-6 emva kokupakishwa, kwaye ayikhuthazwa ngokubanzi ukubhaka inkqubo ye-OSP.

Ukugcinwa kunye nexesha lokubhaka lePCB linento eninzi yokwenza nommandla. Emazantsi, ukufuma kudla ngokuba nzima ngakumbi, ngakumbi eGuangdong naseGuangxi. NgoMatshi nangoAprili wonyaka ngamnye, kuya kubakho imozulu “yokubuyela emzantsi,” enamafu nemvula yonke imihla. Ngokuqhubekayo, kwakufumeme kakhulu ngeli xesha. I-PCB evezwe emoyeni kufuneka isetyenziswe ngaphakathi kweeyure ezingama-24, ngaphandle koko kulula ukuyi-oxidize. Emva kokuvulwa okuqhelekileyo, kungcono ukuyisebenzisa kwiiyure ezisi-8. Kwezinye iiPCB ezifuna ukubhakwa, ixesha lokubhaka liya kuba lide. Kwimimandla esenyakatho, imozulu yomile ngokubanzi, ixesha lokugcina iPCB liya kuba lide, kwaye ixesha lokubhaka linokuba lifutshane. Ubushushu bokubhaka ngokuqhelekileyo yi-120 ± 5℃, kwaye ixesha lokubhaka limiselwa ngokwemeko ethile.